WO2022202375A1 - 活性炭素繊維、活性炭素繊維成形体、及びそれらの製造方法、有機溶剤吸脱着処理装置、有機溶剤回収システム、有機溶剤吸脱着処理方法、並びに有機溶剤回収方法 - Google Patents
活性炭素繊維、活性炭素繊維成形体、及びそれらの製造方法、有機溶剤吸脱着処理装置、有機溶剤回収システム、有機溶剤吸脱着処理方法、並びに有機溶剤回収方法 Download PDFInfo
- Publication number
- WO2022202375A1 WO2022202375A1 PCT/JP2022/010667 JP2022010667W WO2022202375A1 WO 2022202375 A1 WO2022202375 A1 WO 2022202375A1 JP 2022010667 W JP2022010667 W JP 2022010667W WO 2022202375 A1 WO2022202375 A1 WO 2022202375A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- polyphenylene ether
- activated carbon
- fiber
- carbon fiber
- organic solvent
- Prior art date
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 168
- 239000003960 organic solvent Substances 0.000 title claims abstract description 102
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000002336 sorption--desorption measurement Methods 0.000 title claims abstract description 28
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- 229920001955 polyphenylene ether Polymers 0.000 claims abstract description 304
- 239000000835 fiber Substances 0.000 claims abstract description 274
- 238000011282 treatment Methods 0.000 claims abstract description 64
- 230000003213 activating effect Effects 0.000 claims abstract description 45
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 31
- 238000010000 carbonizing Methods 0.000 claims abstract description 23
- 239000004917 carbon fiber Substances 0.000 claims abstract description 16
- 239000004745 nonwoven fabric Substances 0.000 claims description 72
- 239000007789 gas Substances 0.000 claims description 61
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 35
- 239000003463 adsorbent Substances 0.000 claims description 21
- 230000009477 glass transition Effects 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 20
- 238000001179 sorption measurement Methods 0.000 claims description 20
- 230000008707 rearrangement Effects 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 19
- 125000004432 carbon atom Chemical group C* 0.000 claims description 18
- 150000002430 hydrocarbons Chemical group 0.000 claims description 16
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 125000001424 substituent group Chemical group 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 9
- 238000003795 desorption Methods 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 238000005160 1H NMR spectroscopy Methods 0.000 claims description 4
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 abstract description 7
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 230000004913 activation Effects 0.000 description 57
- 238000003763 carbonization Methods 0.000 description 43
- -1 phenolic activated carbon fiber Chemical class 0.000 description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 15
- 239000002994 raw material Substances 0.000 description 14
- 229920006282 Phenolic fiber Polymers 0.000 description 13
- 239000000126 substance Substances 0.000 description 11
- 230000004927 fusion Effects 0.000 description 10
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- 239000011261 inert gas Substances 0.000 description 8
- 239000011572 manganese Substances 0.000 description 8
- 238000009987 spinning Methods 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- GVLZQVREHWQBJN-UHFFFAOYSA-N 3,5-dimethyl-7-oxabicyclo[2.2.1]hepta-1,3,5-triene Chemical compound CC1=C(O2)C(C)=CC2=C1 GVLZQVREHWQBJN-UHFFFAOYSA-N 0.000 description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 6
- 229910052748 manganese Inorganic materials 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 150000001299 aldehydes Chemical class 0.000 description 5
- 239000000567 combustion gas Substances 0.000 description 5
- 229920001519 homopolymer Polymers 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 4
- 239000012298 atmosphere Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000002759 woven fabric Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 239000004793 Polystyrene Substances 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- 239000000194 fatty acid Substances 0.000 description 3
- 229930195729 fatty acid Natural products 0.000 description 3
- 150000004665 fatty acids Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229920002223 polystyrene Polymers 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000006462 rearrangement reaction Methods 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 125000001637 1-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C(*)=C([H])C([H])=C([H])C2=C1[H] 0.000 description 2
- 125000004343 1-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])(*)C([H])([H])[H] 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 2
- 125000001622 2-naphthyl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C(*)C([H])=C([H])C2=C1[H] 0.000 description 2
- 125000000094 2-phenylethyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 238000005481 NMR spectroscopy Methods 0.000 description 2
- 229920000571 Nylon 11 Polymers 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 125000003545 alkoxy group Chemical group 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 125000003710 aryl alkyl group Chemical group 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 125000001153 fluoro group Chemical group F* 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000003550 marker Substances 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920001568 phenolic resin Polymers 0.000 description 2
- 229920006111 poly(hexamethylene terephthalamide) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 229920002577 polybenzoxazole Polymers 0.000 description 2
- 238000011045 prefiltration Methods 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000011550 stock solution Substances 0.000 description 2
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 2
- 125000002023 trifluoromethyl group Chemical group FC(F)(F)* 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- IJAJGQIUSCYZPR-UHFFFAOYSA-N 3,5-diethyl-7-oxabicyclo[2.2.1]hepta-1(6),2,4-triene Chemical compound CCC1=C(O2)C(CC)=CC2=C1 IJAJGQIUSCYZPR-UHFFFAOYSA-N 0.000 description 1
- PTRQSJPGZBGYIW-UHFFFAOYSA-N 3,5-dipropyl-7-oxabicyclo[2.2.1]hepta-1(6),2,4-triene Chemical compound CCCC1=C(O2)C(CCC)=CC2=C1 PTRQSJPGZBGYIW-UHFFFAOYSA-N 0.000 description 1
- OMIHGPLIXGGMJB-UHFFFAOYSA-N 7-oxabicyclo[4.1.0]hepta-1,3,5-triene Chemical group C1=CC=C2OC2=C1 OMIHGPLIXGGMJB-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- ORAWFNKFUWGRJG-UHFFFAOYSA-N Docosanamide Chemical compound CCCCCCCCCCCCCCCCCCCCCC(N)=O ORAWFNKFUWGRJG-UHFFFAOYSA-N 0.000 description 1
- 238000004435 EPR spectroscopy Methods 0.000 description 1
- 229920001007 Nylon 4 Polymers 0.000 description 1
- 229920002292 Nylon 6 Polymers 0.000 description 1
- 229920002302 Nylon 6,6 Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000012668 chain scission Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000010680 novolac-type phenolic resin Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/20—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products
- D01F9/24—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments from polyaddition, polycondensation or polymerisation products from macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28023—Fibres or filaments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3078—Thermal treatment, e.g. calcining or pyrolizing
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/318—Preparation characterised by the starting materials
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
- C01B32/354—After-treatment
- C01B32/382—Making shaped products, e.g. fibres, spheres, membranes or foam
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/66—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyethers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
- D01F9/12—Carbon filaments; Apparatus specially adapted for the manufacture thereof
- D01F9/14—Carbon filaments; Apparatus specially adapted for the manufacture thereof by decomposition of organic filaments
- D01F9/32—Apparatus therefor
- D01F9/328—Apparatus therefor for manufacturing filaments from polyaddition, polycondensation, or polymerisation products
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4242—Carbon fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/002—Inorganic yarns or filaments
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/009—Condensation or reaction polymers
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/10—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically
- D04H3/105—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between yarns or filaments made mechanically by needling
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/04—Carbonising or oxidising
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
- B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
- B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/86—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by NMR- or ESR-data
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/90—Other morphology not specified above
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2101/00—Inorganic fibres
- D10B2101/10—Inorganic fibres based on non-oxides other than metals
- D10B2101/12—Carbon; Pitch
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/06—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyethers
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
Definitions
- the present invention relates to activated carbon fibers, activated carbon fiber molded bodies, manufacturing methods thereof, organic solvent adsorption/desorption treatment equipment, organic solvent recovery systems, organic solvent adsorption/desorption treatment methods, and organic solvent recovery methods.
- Phenolic fibers are used in a wide range of fields, including industrial materials, due to their excellent heat resistance, flame resistance, and chemical resistance.
- phenol-based activated carbon fibers obtained by carbonizing and activating phenol-based fibers are used as functional materials in specific fields. Specifically, they are used in organic solvent recovery systems, Specifically, it is used as an adsorbent for adsorbing and desorbing organic solvents.
- Phenolic fibers are generally manufactured by melt-spinning a novolac-type phenolic resin, and then reacting it with aldehydes under an acidic catalyst for three-dimensional cross-linking to make it infusible.
- the production of phenolic fibers includes a raw material mixing step of mixing a phenolic resin and fatty acid amides, and a spinning step of spinning the raw material mixture obtained in the raw material mixing step to obtain a thread.
- a method for producing a phenolic carbon fiber, characterized by carbonizing a phenolic fiber produced by the method, and a phenolic activated carbon fiber, characterized by activating the phenolic carbon fiber produced by the method. has been proposed.
- Phenolic fibers are useful substances that serve as precursors for activated carbon fibers, but harmful aldehydes are used in the production of phenolic fibers, and the use of aldehydes is said to have an adverse effect on the human body and the environment. There's a problem. Therefore, development of new precursors to replace phenolic fibers is required.
- phenolic activated carbon fibers for applications such as adsorbents
- phenolic activated carbon fibers with a large fiber diameter (thickened diameter) are required in order to reduce pressure loss.
- phenolic fibers cured with aldehydes three-dimensionally crosslinked to be infusible
- the mechanical strength especially fiber strength and fiber elongation
- the mechanical strength required for the production and spinning of woven fabric, non-woven fabric, felt, etc. is insufficient, resulting in poor workability.
- the phenolic activated carbon fiber obtained by carbonizing and activating these fabrics does not have the mechanical strength required as a functional material (especially There is a problem that tensile strength) is insufficient.
- Patent Document 1 fatty acid amides are mixed with phenolic resin in order to improve the mechanical strength when phenolic fibers are thickened.
- phenolic fibers containing fatty acid amides have the problem of generating harmful decomposition gases such as HCN and NOx in the process of burning decomposition gases generated during carbonization or activation.
- the present invention provides an activated carbon fiber that has excellent heat resistance, excellent mechanical strength and workability even when the diameter is increased, and does not generate harmful decomposition gas during production, and an activated carbon containing the activated carbon fiber.
- the present inventors have found a polyphenylene ether fiber containing a polyphenylene ether component having a specific rearrangement structure, an infusible polyphenylene ether fiber in which the polyphenylene ether fiber is infusibilized, the polyphenylene ether fiber, or the infusible fiber.
- the inventors have found that the above problems can be solved by using a flame-resistant polyphenylene ether fiber in which the melted polyphenylene ether fiber is flame-resistant, or a carbon fiber in which any of the polyphenylene ether fibers is carbonized, as a precursor of the activated carbon fiber.
- the present invention has been completed.
- the present invention provides a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure connecting ortho-position bonds in repeating units continuous with para-position bonds, and an infusible polyphenylene obtained by infusibilizing the polyphenylene ether fiber.
- the repeating unit continuous at the para-position bond has the following general formula (1): (wherein R 1 and R 2 are each independently a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms which may have a substituent, and R 3 is each independently a substituted represents a hydrocarbon group having 1 to 10 carbon atoms which may have a group) is a repeating unit represented by the following general formula (2): (wherein R 1 and R 2 are each independently a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms which may have a substituent, and R 3 is each independently a substituted a hydrocarbon group having 1 to 10 carbon atoms which may have a group, and R 3′ represents a divalent group obtained by removing one hydrogen atom from the above R 3 ) is preferably a structure represented by
- the rearrangement amount in the polyphenylene ether component having the rearrangement structure is preferably 0.01 mol % or more with respect to all polyphenylene ether structural units in the polyphenylene ether component.
- the content of the polyphenylene ether component is preferably 95% by mass or more in the polyphenylene ether fiber.
- the dislocation structure preferably exhibits peaks in the ranges of 6.8 to 7.0 ppm and 3.8 to 4.0 ppm in nuclear magnetic resonance spectrum ( 1 H-NMR) measurement.
- the amount of radicals in the polyphenylene ether fiber is 50 g ⁇ 1 or more.
- the glass transition temperature of the polyphenylene ether fiber is preferably 190°C or higher and 210°C or lower.
- the fiber diameter of the activated carbon fiber is preferably 10 ⁇ m or more and 100 ⁇ m or less.
- the BET specific surface area of the activated carbon fiber is preferably 500 m 2 /g or more and 2500 m 2 /g or less.
- the present invention also relates to an activated carbon fiber molded article containing the activated carbon fiber.
- the activated carbon fiber molded body is preferably an activated carbon fiber nonwoven fabric.
- the activated carbon fiber nonwoven fabric has a tensile strength of 4 N/cm 2 or more.
- the activated carbon fiber nonwoven fabric is preferably a short fiber nonwoven fabric or a long fiber nonwoven fabric.
- the present invention provides a step of producing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure connecting ortho-position bonds in repeating units continuous with para-position bonds, and activating the polyphenylene ether fiber. and a method for producing the activated carbon fiber, comprising:
- the present invention includes a step of producing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure connecting ortho-position bonds in repeating units continuous with para-position bonds, and infusibilizing the polyphenylene ether fiber. and a method for producing the activated carbon fiber, which includes a step of producing an infusibilized polyphenylene ether fiber by means of a heat sink, and a step of activating the infusibilized polyphenylene ether fiber.
- the present invention includes a step of producing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure connecting ortho-position bonds in repeating units continuous with para-position bonds, and flameproofing the polyphenylene ether fiber.
- the present invention relates to a method for producing the activated carbon fiber, comprising a step of producing a flame-resistant polyphenylene ether fiber, and a step of activating the flame-resistant polyphenylene ether fiber.
- the present invention includes a step of producing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure connecting ortho-position bonds in repeating units continuous with para-position bonds, and infusibilizing the polyphenylene ether fiber.
- producing an infusible polyphenylene ether fiber making the infusible polyphenylene ether fiber flameproof to produce a flameproof polyphenylene ether fiber, and activating the flameproof polyphenylene ether fiber. relating to the method.
- the present invention relates to a step of processing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure that connects via ortho-position bonds in repeating units that are continuous via para-position bonds to produce a polyphenylene ether fiber molded product. and a method for producing the activated carbon fiber molded article, which includes a step of activating the polyphenylene ether fiber molded article.
- the present invention relates to a step of processing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure that connects via ortho-position bonds in repeating units that are continuous via para-position bonds to produce a polyphenylene ether fiber molded product.
- a method for producing the activated carbon fiber molded article which includes a step of making the polyphenylene ether fiber molded article infusible to produce an infusibilized polyphenylene ether fiber molded article, and a step of activating the infusibilized polyphenylene ether fiber molded article.
- the present invention relates to a step of processing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure that connects via ortho-position bonds in repeating units that are continuous via para-position bonds to produce a polyphenylene ether fiber molded product.
- a method for producing the activated carbon fiber molded article comprising a step of flameproofing the polyphenylene ether fiber molded article to produce a flame-resistant polyphenylene ether fiber molded article, and a step of activating the flame-resistant polyphenylene ether fiber molded article.
- the present invention relates to a step of processing a polyphenylene ether fiber containing a polyphenylene ether component having a transition structure that connects via ortho-position bonds in repeating units that are continuous via para-position bonds to produce a polyphenylene ether fiber molded product.
- the present invention relates to a method for producing an activated carbon fiber molded article, including a step of activating a flame-resistant polyphenylene ether fiber molded article.
- the present invention is an organic solvent adsorption/desorption treatment apparatus for cleaning the gas to be treated by adsorbing and removing the organic solvent from the gas to be treated containing the organic solvent, and desorbing the adsorbed organic solvent
- the adsorption tank is filled with an adsorbent that adsorbs the organic solvent by contacting the gas to be treated and desorbs the adsorbed organic solvent by contacting with water vapor or heated gas, It relates to an organic solvent adsorption/desorption treatment apparatus, wherein the adsorbent includes the activated carbon fiber molded body.
- the present invention also relates to an organic solvent recovery system including the solvent adsorption/desorption treatment device and an organic solvent recovery device that recovers the organic solvent by condensing the desorption gas discharged from the organic solvent adsorption/desorption treatment device.
- the present invention is an organic solvent adsorption/desorption treatment method for purifying the gas to be treated by adsorbing and removing the organic solvent from the gas to be treated containing an organic solvent, and desorbing the adsorbed organic solvent,
- the organic solvent is adsorbed by bringing the gas to be treated into contact with the adsorbent, and the adsorbed organic solvent is desorbed by bringing water vapor or heated gas into contact with the adsorbent,
- the adsorbent includes the activated carbon fiber molded body.
- the present invention purifies the gas to be treated by adsorbing and removing the organic solvent from the gas to be treated containing the organic solvent, further desorbs the adsorbed organic solvent, and condenses the discharged desorbed gas to produce an organic solvent.
- An organic solvent recovery method for recovering a solvent The organic solvent is adsorbed by bringing the gas to be treated into contact with the adsorbent, and the adsorbed organic solvent is desorbed by bringing water vapor or heated gas into contact with the adsorbent, It relates to a method for recovering an organic solvent, wherein the adsorbent contains the activated carbon fiber molded body.
- the activated carbon fiber of the present invention is obtained by activating a polyphenylene ether fiber or the like containing a polyphenylene ether component having a dislocation structure, and has excellent mechanical strength and workability even when the diameter is increased.
- the activated carbon fiber of the present invention has the advantage that no harmful gas is generated even if the cracked gas generated during carbonization or activation is burned.
- the activated carbon fiber of the present invention has the advantage that it does not require the use of harmful substances such as aldehydes that adversely affect the human body and the environment in its production.
- the activated carbon fiber of the present invention has excellent adsorption performance and physical properties in place of the phenolic activated carbon fiber.
- the polyphenylene ether fiber used in the present invention is characterized by containing a polyphenylene ether component having a rearranged structure connecting with ortho-position bonds in repeating units continuous with para-position bonds.
- the term “transposition structure connected by ortho-position bonds” means a structure in which a side chain is formed by bonding at the ortho-position to a part of the repeating units that are continuous by the para-position bonds of the main chain. , and the side chain may be formed from repeating units that are continuous with para bonds, and may have a portion thereof that is partially ortho-bonded.
- the dislocation structure has the following general formula (2): (wherein R 1 and R 2 are each independently a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms which may have a substituent, and R 3 is each independently a substituted a hydrocarbon group having 1 to 10 carbon atoms which may have a group, and R 3′ represents a divalent group obtained by removing one hydrogen atom from the above R 3 ) It is preferable to have a dislocation structure represented by " ⁇ " in the general formula (2) indicates that the structure beyond it is not particularly limited.
- the "-" portion may be formed from phenylene ether units that are
- the rearrangement reaction is, for example, the following formula: and is sometimes called a methylene bridge rearrangement.
- a carbonaceous material is obtained by making polyphenylene ether infusible (infusible treatment) in a high-temperature air atmosphere and then carbonizing (carbonization treatment) in a high-temperature inert gas atmosphere.
- polyphenylene ether modified to be thermosetting in advance or polyphenylene ether and a component having a cross-linking group in advance infusibilization is not necessary.
- the present inventors have found that polyphenylene ether, infusible polyphenylene ether in which polyphenylene ether has been infusibilized, flame retarded polyphenylene ether in which polyphenylene ether or infusible polyphenylene ether has been flame retarded, or any of the above polyphenylene ethers has been carbonized It has been found that a porous material having excellent adsorption performance can be obtained by activating a carbonaceous material.
- the polyphenylene ether fiber containing the polyphenylene ether component having the dislocation structure since the polyphenylene ether fiber containing the polyphenylene ether component having the dislocation structure is used, the fusion between the fibers and the heat shrinkage of the fiber are suppressed during the above treatment, thereby suppressing the activated carbon.
- the mechanical strength, flexibility and dimensional stability of the fibers are greatly improved.
- the weight yield after activation was greatly improved.
- the polyphenylene ether component used in the present invention contains a polyphenylene ether having a rearranged structure connecting repeating units with ortho-position bonds in continuous units with para-position bonds.
- the repeating unit continuous at the para-position bond is preferably a repeating unit represented by the general formula (1), and the dislocation structure has a dislocation structure represented by the general formula (2). is preferred.
- R 1 and R 2 in the general formulas (1) and (2) include a hydrogen atom, methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, isobutyl group, t-butyl group, Alkyl groups having 1 to 10 carbon atoms such as pentyl group, cyclopentyl group, hexyl group, cyclohexyl group, octyl group and decyl group; carbon numbers such as phenyl group, 4-methylphenyl group, 1-naphthyl group and 2-naphthyl group An aryl group having 6 to 10 carbon atoms, an aralkyl group having 7 to 10 carbon atoms such as a benzyl group, a 2-phenylethyl group and a 1-phenylethyl group can also be used.
- the substituent includes a halogen atom such as a fluorine atom, an alkoxy group such as a methoxy group, and the like.
- a halogen atom such as a fluorine atom
- an alkoxy group such as a methoxy group
- Specific examples of the hydrocarbon group having a substituent include, for example, a trifluoromethyl group.
- R 1 and R 2 are preferably a hydrogen atom or a methyl group, more preferably a hydrogen atom.
- R 3 in the general formulas (1) and (2) examples include methyl group, ethyl group, propyl group, isopropyl group, n-butyl group, isobutyl group, t-butyl group, pentyl group, cyclopentyl group, Alkyl groups having 1 to 10 carbon atoms such as hexyl group, cyclohexyl group, octyl group and decyl group, aryl groups having 6 to 10 carbon atoms such as phenyl group, 4-methylphenyl group, 1-naphthyl group and 2-naphthyl group , a benzyl group, a 2-phenylethyl group, a 1-phenylethyl group, and other aralkyl groups having 7 to 10 carbon atoms.
- examples of the substituent include a halogen atom such as a fluorine atom and an alkoxy group such as a methoxy group.
- Specific examples of the hydrocarbon group having a substituent include, for example, a trifluoromethyl group.
- R 3 is preferably a methyl group.
- R 3′ represents a divalent group obtained by removing one hydrogen atom from R 3 and is preferably a methylene group.
- repeating unit of general formula (1) examples include 2,6-dimethyl-1,4-phenylene ether, 2,6-diethyl-1,4-phenylene ether, 2-methyl-6-ethyl Repeating units derived from -1,4-phenylene ether, 2,6-dipropyl-1,4-phenylene ether can be mentioned. Among these, repeating units derived from 2,6-dimethyl-1,4-phenylene ether are preferred.
- the polyphenylene ether component having a rearranged structure is a homopolymer having a repeating unit of the general formula (1), or a copolymer containing two or more different repeating units of the general formula (1), the general Those having a dislocation structure represented by formula (2) are preferred.
- polyphenylene ether component having a rearrangement structure may contain repeating units other than the general formula (1) within a range that does not impair the effects of the present invention.
- a copolymer containing a unit and a repeating unit other than those of general formula (1) may have a dislocation structure represented by general formula (2).
- the content of repeating units other than those of general formula (1) is not particularly limited as long as it does not impair the effects of the present invention. Preferably, it is more preferably not included.
- the molecular weight of the polyphenylene ether component having a rearranged structure is not particularly limited, but the weight average molecular weight (Mw) is preferably 40,000 to 100,000, and is 50,000 to 80,000. is more preferred. Also, the number average molecular weight (Mn) is preferably from 7,000 to 30,000, more preferably from 8,000 to 20,000. Also, the molecular weight distribution (Mw/Mn) is preferably 3.5 to 8.0, more preferably 4.0 to 6.0.
- the weight average molecular weight and number average molecular weight can be measured using, for example, HLC-8320GPC manufactured by Tosoh Corporation. The column can be used by connecting two TSKgel SuperHM-H and TSKgel SuperH2000 in series.
- Chloroform can be used as the mobile phase, the flow rate is preferably 0.6 ml/min, and the temperature of the column oven is preferably 40°C. It is preferable to measure after leaving the chloroform solution containing the polyphenylene ether component at a concentration of 1 g/L for 1 hour after preparation. Weight average molecular weight and number average molecular weight can be calibrated using standard polystyrene. The UV wavelength of the detector can be evaluated as 283 nm for the object to be evaluated and 254 nm for standard polystyrene.
- the amount of rearrangement in the polyphenylene ether component having the rearrangement structure is preferably 0.01 mol% or more, and preferably 0.05 mol% or more, with respect to all polyphenylene ether structural units in the polyphenylene ether component. It is more preferably 0.1 mol % or more, and particularly preferably 0.15 mol % or more. Further, it is preferably 2 mol % or more in order to obtain fine fibers with a single filament fineness of 15 dtex or less.
- the upper limit of the dislocation amount is not particularly limited, but is preferably 20 mol% or less, more preferably 18 mol% or less, further preferably 5 mol% or less, and 4 mol% or less.
- the polyphenylene ether fibers are subjected to one or more treatments selected from the group consisting of infusibilization, flame resistance, carbonization, and activation. and the thermal shrinkage of the fiber are suppressed, the mechanical strength, flexibility and dimensional stability of the activated carbon fiber and the activated carbon fiber molded article tend to be improved.
- the amount of tar generated during carbonization and/or activation in a high-temperature inert gas atmosphere is reduced, the weight yield after carbonization and/or activation tends to improve.
- the dislocation structure preferably exhibits peaks in the ranges of 3.8 to 4.0 ppm and 6.8 to 7.0 ppm in nuclear magnetic resonance spectrum ( 1 H-NMR) measurement.
- Polyphenylene ether usually shows a peak around 6.4 to 6.6 ppm, which is derived from the hydrogen atoms at the 3- and 5-positions of the benzene ring in the polyphenylene ether main chain.
- the polyphenylene ether component having a rearranged structure exhibits peaks in the ranges of 3.8 to 4.0 ppm and 6.8 to 7.0 ppm in addition to the peaks around 6.4 to 6.6 ppm.
- the chemical shift of 3.8 to 4.0 ppm is derived from the proton of the divalent group (e.g., methylene group, etc.) represented by R 3' in the rearrangement structure, and the 6.8 to 7
- the chemical shift of .0 ppm is the protons of the R 1 and R 2 groups at the 3 and 5 positions of the polyphenylene ether in the rearrangement structure (for example, the 3 and 5 position hydrogen atom).
- the polyphenylene ether fiber used in the present invention may contain polyphenylene ether having no rearrangement structure.
- polyphenylene ether having no rearrangement structure a homopolymer having a repeating unit of the general formula (1), a copolymer containing two or more different repeating units of the general formula (1), and the general formula A copolymer having a repeating unit of formula (1) and a repeating unit other than the repeating unit of general formula (1) can be used.
- Examples of the content of the repeating unit represented by formula (1) or less in the copolymer include those described above.
- the polyphenylene ether fiber used in the present invention may contain low-molecular-weight polyphenylene ether.
- the molecular weight of the low-molecular-weight polyphenylene ether for example, a weight-average molecular weight of about 2,000 to 8,000 can be mentioned.
- the content of the polyphenylene ether component having the rearrangement structure is preferably 95% by mass or more, more preferably 98% by mass or more, in the polyphenylene ether fiber, and substantially the polyphenylene ether component having the rearrangement structure. It is more preferable to consist of only (100% by mass). If the content of the polyphenylene ether component having the rearranged structure in the polyphenylene ether fiber is within the above range, the activated carbon fiber obtained by activating the polyphenylene ether fiber and the like and the activated carbon fiber molded product have excellent mechanical strength. It is preferable because it is excellent in flexibility and dimensional stability. In addition, the amount of tar generated during carbonization and/or activation in a high-temperature inert gas atmosphere is reduced, and the weight yield after carbonization and/or activation tends to improve, which is preferable.
- the polyphenylene ether fiber used in the present invention can contain a resin component other than the polyphenylene ether component.
- Resin components other than the polyphenylene ether component include polystyrene, polyethylene, polypropylene, polyamides such as polyamide 4, polyamide 6, polyamide 10, polyamide 11, polyamide 66, polyamide 6T, and polyamide 6T/11, polyethylene terephthalate, polybutylene terephthalate, and the like.
- Polyester, polycarbonate and the like can be mentioned. However, the content is preferably 5% by mass or less, more preferably 2% by mass or less, and more preferably not contained (0% by mass).
- Additives such as lubricants, plasticizers, antioxidants, ultraviolet absorbers, dulling agents, and antistatic agents may also be added to the polyphenylene ether fiber used in the present invention within a range that does not impair the effects of the present invention. can be done.
- the polyphenylene ether fiber used in the present invention contains the polyphenylene ether component having the rearranged structure, and its production method is not particularly limited. can be done.
- the glass transition temperature of the polyphenylene ether fiber is not particularly limited, but is preferably 190° C. or higher and 210° C. or lower, more preferably 190° C. or higher and 209° C. or lower, and further preferably 200° C. or higher and 208° C. or lower. preferable.
- the glass transition temperature is in the above range, the fusion between the fibers can be suppressed when the polyphenylene ether fiber is subjected to one or more treatments selected from the group consisting of infusibilization, flame resistance, carbonization, and activation.
- the activated carbon fiber and the activated carbon fiber molded article obtained by activating the polyphenylene ether fiber or the like can achieve both flexibility and dimensional stability in a well-balanced manner.
- the amount of radicals in the polyphenylene ether fiber is preferably 50 g ⁇ 1 or more, more preferably 70 g ⁇ 1 or more, and even more preferably 90 g ⁇ 1 or more.
- the amount of radicals is within the above range, the fusion between the fibers when the polyphenylene ether fiber is subjected to one or more treatments selected from the group consisting of infusibilization, flame resistance, carbonization, and activation can be further suppressed, It is also preferable because the flexibility and dimensional stability of activated carbon fibers and activated carbon fiber molded articles obtained by activating polyphenylene ether fibers tend to improve.
- the amount of tar generated during carbonization and/or activation tends to be reduced, and the weight yield after carbonization and/or activation tends to improve, which is preferable.
- the upper limit of the amount of radicals in the polyphenylene ether fiber is not particularly limited, but from the viewpoint of the mechanical strength of the activated carbon fiber and the activated carbon fiber molded product obtained by activating the polyphenylene ether fiber, etc., it is 6000 g ⁇ 1 or less. preferably 5500 g -1 or less, and even more preferably 5000 g -1 or less.
- the polyphenylene ether fiber molded article used in the present invention contains the polyphenylene ether fiber, and examples thereof include paper, woven fabric, knitted fabric, and non-woven fabric. Among these, nonwoven fabrics are preferred because of their high versatility, and short fiber nonwoven fabrics or long fiber nonwoven fabrics are more preferred.
- the method for producing the polyphenylene ether fiber molded article is not particularly limited, it can be produced, for example, by the below-described method for producing a polyphenylene ether fiber molded article.
- the activated carbon fiber of the present invention is the polyphenylene ether fiber, the infusible polyphenylene ether fiber obtained by making the polyphenylene ether fiber infusible, the polyphenylene ether fiber or the flameproof polyphenylene ether fiber obtained by making the infusible polyphenylene ether fiber flameproof, or the It is obtained by activating (activation treatment) a carbon fiber obtained by carbonizing any polyphenylene ether fiber, and its production method is not particularly limited, but for example, by the method for producing activated carbon fiber described later can be manufactured.
- the activated carbon fiber of the present invention is preferably obtained by making the polyphenylene ether fiber infusible and then activating it.
- the infusible polyphenylene ether fiber may be carbonized and then activated.
- the carbonization and activation may be performed simultaneously.
- the polyphenylene ether fiber infusible it is possible to further suppress fusion between fibers during carbonization and/or activation, which is preferable. It is also preferable because the mechanical strength, flexibility and dimensional stability of the activated carbon fiber and the activated carbon fiber molded product obtained by activation tend to improve.
- the amount of tar generated during carbonization and/or activation tends to be reduced, and the weight yield after carbonization and/or activation tends to improve, which is preferable.
- the activated carbon fiber of the present invention preferably has a fiber diameter of 10 ⁇ m or more and 100 ⁇ m or less, more preferably 12 ⁇ m or more and 90 ⁇ m or less, and even more preferably 15 ⁇ m or more and 80 ⁇ m or less. If the fiber diameter is less than 10 ⁇ m, for example, pressure loss tends to increase when used as a filter. flexibility tends to be impaired.
- the BET specific surface area of the activated carbon fiber of the present invention is preferably 500 m 2 /g or more and 2500 m 2 /g or less, more preferably 650 m 2 /g or more and 2400 m 2 /g or less, and 800 m 2 /g or more. It is more preferably 2300 m 2 /g or less. Since the BET specific surface area is within the above range, even a small amount of activated carbon fibers can exhibit sufficient adsorption performance. On the other hand, if it exceeds 2500 m 2 /g, the mechanical strength of the activated carbon fiber tends to decrease.
- the activated carbon fiber molded article of the present invention contains the activated carbon fiber.
- Examples of activated carbon fiber moldings include activated carbon fiber paper, activated carbon fiber woven fabric, activated carbon fiber knitted fabric, and activated carbon fiber non-woven fabric.
- the activated carbon fiber nonwoven fabric is preferred because of its high versatility.
- the activated carbon fiber nonwoven fabric is, for example, wound around a cylinder and processed into a cylindrical activated carbon fiber nonwoven fabric element, which is used as an adsorbent for an organic solvent adsorption/desorption treatment device and an organic solvent recovery system using the organic solvent adsorption/desorption treatment device. Used as an adsorbent.
- the basis weight of the activated carbon fiber molded body is not particularly limited and can be determined appropriately according to the application. is 30 g/m 2 or more, more preferably 100 g/m 2 or more, preferably 800 g/m 2 or less, more preferably 600 g/m 2 or less, still more preferably 400 g/m 2 or less.
- the thickness of the activated carbon fiber molded body is not particularly limited and can be appropriately determined according to the application. or less, more preferably 0.2 mm or more and 6.0 mm or less.
- the tensile strength of the activated carbon fiber nonwoven fabric is preferably 4 N/cm 2 or more, more preferably 4.5 N/cm 2 or more, and even more preferably 5 N/cm 2 or more. If the tensile strength is 4 N/cm 2 or more, the activated carbon fiber nonwoven fabric is less likely to break even if the tension when the activated carbon fiber nonwoven fabric is strongly wound around the cylinder is increased, so the bulk density is high and the shape stability is excellent. element can be obtained. Although the upper limit of the tensile strength is not particularly limited, it is difficult to achieve a tensile strength exceeding 20 N/cm 2 when the fiber diameter is 10 ⁇ m or more.
- the activated carbon fiber nonwoven fabric is preferably a short fiber nonwoven fabric. Since the short fiber nonwoven fabric can be easily mixed with other fibers, for example, the activated carbon fiber nonwoven fabric can be applied to a wide range of fields as a functional material.
- the activated carbon fiber nonwoven fabric is preferably a long fiber nonwoven fabric.
- Long-fiber nonwoven fabrics tend to reduce the number of manufacturing processes, and can easily be made large in diameter, which is difficult to process with short-fiber nonwoven fabrics.
- the method for producing the polyphenylene ether fiber used in the present invention has, for example, a step of melt extruding the raw material polyphenylene ether using an extruder equipped with a cylinder and a screw.
- a homopolymer having a repeating unit of the general formula (1) or a copolymer containing two or more different repeating units of the general formula (1), or the general formula (1 ) and a copolymer having a repeating unit other than the repeating unit of general formula (1).
- Examples of the content of repeating units other than those represented by general formula (1) in the copolymer include those described above. Among these, homopolymers having repeating units of the general formula (1) are preferred.
- homopolymers having repeating units of the general formula (1) include poly(2,6-dimethyl-1,4-phenylene ether), poly(2,6-diethyl-1,4- phenylene ether), poly(2-methyl-6-ethyl-1,4-phenylene ether), poly(2,6-dipropyl-1,4-phenylene ether) and the like. (2,6-dimethyl-1,4-phenylene ether) is preferred.
- poly(2,6-dimethyl-1,4-phenylene ether) commercially available products can be suitably used. Specifically, for example, PPO640, PPO646, PPOSA120 manufactured by SABIC Innovative Plastic, ) manufactured by Zylon S201A and Zylon S202A.
- the glass transition temperature of the raw material polyphenylene ether is preferably 170°C or higher, more preferably 200°C or higher, and even more preferably 210°C or higher. Although the upper limit of the glass transition temperature is not particularly limited, it is preferably 230° C. or less. Since the glass transition temperature of the raw material polyphenylene ether is within the above range, the polyphenylene ether fibers are subjected to one or more treatments selected from the group consisting of infusibilization, flame resistance, carbonization, and activation.
- the raw material used in the present invention may contain two or more polyphenylene ethers having different glass transition temperatures. Specifically, in addition to the polyphenylene ether having a glass transition temperature of 170° C. or higher , a polyphenylene ether having a glass transition temperature of less than 170°C. By adding a polyphenylene ether having a glass transition temperature of less than 170°C, the melt viscosity is lowered and the fluidity is improved, but the amount of rearrangement in the polyphenylene ether tends to be lowered.
- the content of the polyphenylene ether having a glass transition temperature of 170° C. or higher in the raw material polyphenylene ether is preferably 80% by mass or more, more preferably 90% by mass or more, and 95% by mass or more. is more preferable, and it is particularly preferable to consist only of polyphenylene ether having a glass transition temperature of 170° C. or higher.
- the upper limit of the content of the polyphenylene ether having a glass transition temperature of 170° C. or higher is not particularly limited, but is preferably 100% by mass or less.
- the activated carbon fiber and the activated carbon fiber molded product obtained by activating the polyphenylene ether fiber or the like are mechanically It is preferable because it not only has excellent strength but also has excellent flexibility and dimensional stability. In addition, the amount of tar generated during carbonization and/or activation tends to be reduced, and the weight yield after carbonization and/or activation tends to improve, which is preferable.
- resin components and additives other than the polyphenylene ether component can be included along with the raw material polyphenylene ether. Resin components and additives other than the polyphenylene ether component are as described above. In addition, the content of resin components other than the polyphenylene ether component is preferably 5% by mass or less, more preferably 2% by mass or less, and even more preferably not contained (0% by mass).
- a single-screw extruder or a twin-screw extruder that can be commonly used in this field can be used.
- the extruder is not limited to this, as long as the purpose of effectively shearing the polymer can be achieved.
- the peripheral speed of the screw is required to cause a rearrangement reaction of the raw material polyphenylene ether, and is 3.6 m / min or more, preferably 3.7 m / min or more, and 3.8 m /min or more is more preferable.
- the upper limit of the peripheral speed of the screw is not particularly limited, it is preferably 94.2 m/min or less.
- a high shearing force can be applied to the raw material polyphenylene ether in the cylinder, and as a result, the polyphenylene ether molecules Chain scission can form polyphenylene ether components with rearranged structures.
- the shape of the screw is not particularly limited as long as it can apply a shearing force to the extent that rearrangement reaction of polyphenylene ether as a raw material occurs.
- Polyphenylene ether as a raw material is fed from the hopper 101 in FIG. It can be passed through and discharged from the spinning nozzle 105 to obtain melt-spun fibers.
- a filter 106 made of a metal nonwoven fabric or the like on the filter medium 104 . By installing the filter 106, it is possible to remove foreign matter in advance and prevent clogging of the filter medium 104, which is preferable.
- a heat insulating space 107 is provided immediately below the spinning nozzle 105, and an inert gas such as nitrogen can be introduced 108 into the area for spinning. Also, a heated inert gas can be introduced by the heating torch 109 .
- the method for producing the polyphenylene ether fiber molded article used in the present invention is not particularly limited, and methods commonly used in this field can be appropriately employed.
- Examples of the method for producing the nonwoven fabric, which is a preferred example of the molded article of the present invention, include the spunbond method, meltblown method, spunlace method, needle punch method, thermal bond method, chemical bond method, and the like. Among these, the needle punch method for producing short fiber nonwoven fabrics and the spunbond method for producing long fiber nonwoven fabrics are preferable.
- the infusible polyphenylene ether fiber or the infusible polyphenylene ether fiber molding used in the present invention is obtained by heat-treating the polyphenylene ether fiber or the polyphenylene ether fiber molding in the air at 120 to 230° C. for 0.1 to 100 hours. It can be produced by making it infusible (infusible treatment).
- in air means an environment that is not particularly regulated.
- the treatment temperature is preferably 140 to 220°C, more preferably 150 to 210°C.
- the treatment time is preferably 0.1 to 100 hours, more preferably 0.5 to 80 hours, and even more preferably 1 to 50 hours.
- the flame-resistant polyphenylene ether fiber or flame-resistant polyphenylene ether fiber molded article used in the present invention is obtained by heating the infusible polyphenylene ether fiber or infusible polyphenylene ether fiber molded article in air at 230 to 400° C. to a temperature of 0.01 to 10°C. It can be manufactured by heat-treating for a long time to make it flame resistant (flame resistant treatment).
- the flame-resistant polyphenylene ether fiber or the flame-resistant polyphenylene ether fiber molding used in the present invention is obtained by heating the polyphenylene ether fiber or the polyphenylene ether fiber molding in air at a temperature rising rate of 0.05 to 10 ° C./min. It may be produced by raising the temperature to 120 to 230° C. and then heat-treating at 230 to 400° C. for 0.01 to 10 hours for flame resistance (flame resistance treatment). In air is an environment that is not specifically conditioned.
- the treatment temperature is preferably 240 to 380°C, more preferably 250 to 360°C.
- the treatment time is preferably 0.03 to 4 hours, more preferably 0.05 to 3 hours.
- the flameproofing treatment temperature and the flameproofing treatment time are set within the above ranges, fusion between fibers during carbonization and/or activation can be further suppressed, which is preferable. It is also preferable because the mechanical strength, flexibility, and dimensional stability of the activated carbon fiber and the activated carbon fiber molded product obtained by activation can be achieved in a well-balanced manner. Furthermore, the amount of tar generated during carbonization and/or activation tends to be reduced, and the weight yield after carbonization and/or activation tends to improve, which is preferable.
- the activated carbon fiber of the present invention is the polyphenylene ether fiber, the infusible polyphenylene ether fiber, the flameproof polyphenylene ether fiber, or the carbon fiber obtained by carbonizing (carbonizing) any of the polyphenylene ether fibers. activation treatment).
- the activated carbon fiber molded article of the present invention is the polyphenylene ether fiber molded article, the infusible polyphenylene ether fiber molded article, the flameproof polyphenylene ether fiber molded article, or any of the polyphenylene ether fiber molded articles that are carbonized. It can be produced by activating the carbon fiber molded body.
- the activated carbon fiber molded article of the present invention activates the polyphenylene ether fiber, the infusible polyphenylene ether fiber, the flameproof polyphenylene ether fiber, or the carbon fiber obtained by carbonizing any of the polyphenylene ether fibers,
- the obtained activated carbon fiber may be processed and molded.
- the carbonization (carbonization treatment) can be performed by a known method, specifically by heating in the presence of an inert gas.
- inert gases include nitrogen and argon.
- the heating temperature is usually 300-2500°C, preferably 500-1500°C.
- the heating time is usually 0.1 to 10 hours, preferably 0.5 to 5 hours.
- the activation can be performed by a known method, and specific examples include a gas activation method and a chemical activation method. preferable.
- the activation gas is applied to the polyphenylene ether fiber, the infusible polyphenylene ether fiber, the flame-resistant polyphenylene ether fiber, the carbon fiber, the polyphenylene ether fiber molded article, the infusibilized polyphenylene ether fiber molded article, and the flame-resistant polyphenylene ether fiber. It is activated by bringing it into contact with the polyphenylene ether fiber molded article or the carbon fiber molded article.
- Examples of activating gases include water vapor, air, carbon monoxide, carbon dioxide, hydrogen chloride, oxygen, or mixed gases thereof.
- the temperature for gas activation is usually 600 to 1200°C, preferably 800 to 1000°C.
- the time for gas activation is usually 0.2 to 10 hours, preferably 0.5 to 3 hours.
- alkali metal hydroxides such as sodium hydroxide and potassium hydroxide; alkaline earth metal hydroxides such as calcium hydroxide; inorganic acids such as boric acid, phosphoric acid, sulfuric acid, and hydrochloric acid ; Inorganic salts such as zinc chloride, etc.
- the polyphenylene ether fiber, the infusible polyphenylene ether fiber, the flame-resistant polyphenylene ether fiber, the carbon fiber, the polyphenylene ether fiber molded body, the infusibilized polyphenylene ether fiber molded body, the It is activated by bringing it into contact with the flame-resistant polyphenylene ether fiber molded article or the carbon fiber molded article.
- the temperature for chemical activation is usually 400 to 1000°C, preferably 500 to 800°C.
- the time for chemical activation is usually 0.2 to 5 hours, preferably 0.5 to 5 hours.
- the maximum value of the width shrinkage of the activated carbon fiber upon activation is preferably 50% or less, more preferably 40% or less, and still more preferably 40% or less, from the viewpoint of processability, flexibility and shape stability of the activated carbon fiber. 35% or less. Also, the minimum value is usually 1% or more, more preferably 5% or more, and still more preferably 10% or more.
- the minimum value of the weight yield of activated carbon fibers upon activation treatment is preferably 15% by weight or more, more preferably 20% by weight or more, and still more preferably 20% by weight or more, from the viewpoint of production costs and environmental load due to exhaust of cracked gas. 30% by weight or more. Also, the maximum value is usually 80% by weight or less, more preferably 70% by weight or less, and even more preferably 60% by weight or less.
- the carbonization (carbonization treatment) and the activation (activation treatment) may be performed at the same time.
- the activated carbon fiber and the activated carbon fiber molded product of the present invention can be used, for example, to recover organic solvents such as dichloromethane; remove chlorine compounds such as trihalomethane; remove harmful gases such as malodorous gas, NOx and SOx; and removal of heavy metals such as manganese.
- the organic solvent recovery system 1 includes an organic solvent adsorption/desorption treatment device 22 having adsorption tanks 2A and 2B. Inside the adsorption tanks 2A and 2B, an activated carbon fiber nonwoven fabric 9 (adsorbent) is placed on a cylindrical cage core. is wound in layers, and an active carbon fiber nonwoven fabric element 8 whose outer peripheral surface is fixed with a wire mesh is detachably provided.
- FIG. 2 illustrates the organic solvent recovery system 1 having two adsorption tanks, the number of adsorption tanks may be one, or three or more. The bottom of the activated carbon fiber nonwoven fabric element 8 is closed.
- a solvent mixed gas (gas to be treated) 3 containing an organic solvent passes through a prefilter 4, is sent to the adsorption tank 2A via a lower damper 6 by a blower 5, and is covered with the activated carbon fiber nonwoven fabric 9 of the activated carbon fiber nonwoven fabric element 8.
- the organic solvent in the processing gas is adsorbed, and is discharged outside the system from the exhaust port 12 of the adsorption tank 2A as clean air through the upper damper 10.
- FIG. At this time, the automatic valve 14 of the steam supply line 13 is closed.
- the steam supplied from the steam supply line 13 is supplied to the adsorption tank 2B through the automatic valve 15, and desorbs and regenerates the organic solvent in the gas to be treated adsorbed by the activated carbon fiber nonwoven fabric 9 of the activated carbon fiber nonwoven fabric element 8. .
- the condensate and the uncondensed water vapor containing the organic solvent component in the gas to be treated pass through the desorption gas line 16 and are sent to the condenser 17, where the uncondensed water vapor containing the organic solvent component in the gas to be treated is condensed. be.
- a condensate containing a high-concentration organic solvent is sent from the condenser 17 to the separator 19 .
- the organic solvent recovery device in the organic solvent recovery system includes, for example, the condenser 17, the cooling water supply line 18, and the separator 19 in FIG. 2, but is not limited to these.
- the organic solvent adsorption/desorption treatment apparatus, organic solvent recovery system, organic solvent adsorption/desorption treatment method, and organic solvent recovery method of the present invention are known treatment apparatuses, A system, a treatment method, and a recovery method can be employed, for example, the treatment apparatus, system, treatment method, and treatment described in JP-B-6-55254, JP-A-2004-105806, and JP-A-2013-111552. Recovery methods can be employed.
- an NMR device manufactured by BRUKER device name: AVANCE-NEO600
- the measurement was carried out as follows. After dissolving 10 mg of the compacts (samples) obtained in Examples and Comparative Examples in deuterated chloroform, the solution was filled into an NMR tube within 2 hours and measured. Deuterated chloroform was used as the lock solvent, the waiting time was set to 1 second, the data acquisition time was set to 4 seconds, and the number of accumulations was set to 64 times. Alternatively, heavy benzene may be used as the solvent. Analysis of the dislocation structure amount was performed as follows.
- the sample and blank signal intensities were obtained by two integration values in the range of 322.1 to 329.3 mT, and the signal intensity of the manganese marker manganese was obtained by two integration values in the range of 320 to 322 mT.
- the blank signal intensity is the signal intensity measured without adding a sample to the ESR device.
- Fiber diameter A scanning electron microscope (product name: SU1510, manufactured by Hitachi High-Technologies Corporation) is used to observe the microscopic image, the diameter of 100 or more fibers is read from the microscopic image, and the read fiber diameter is averaged. asked.
- a fiber diameter means a fiber diameter.
- BET Specific Surface Area 30 mg of a sample was collected, vacuum-dried at 130° C. for 12 hours, weighed, and measured using an automatic specific surface area measuring device GEMINI VII2390 (manufactured by Micromeritics). The amount of nitrogen gas adsorbed at the boiling point of liquid nitrogen ( ⁇ 195.8° C.) was measured in a relative pressure range of 0.02 to 0.95 to create an adsorption isotherm for the sample. The BET specific surface area per weight (m 2 /g) was determined by the BET method based on the results obtained when the relative pressure was in the range of 0.02 to 0.15.
- Tensile strength In the case of an activated carbon fiber molded product, sample a test piece with a width of 25 mm and a length of 100 mm, measure the breaking strength with a distance between chucks of 50 mm and a tensile speed of 20 mm / min, and test the value. It was calculated by dividing by the cross-sectional area (width ⁇ thickness) of the piece (unit: N/cm 2 ). The thickness was measured by using a disk with an area of 4 cm 2 and applying a load of 15 gf/cm 2 to the activated carbon fiber molded body.
- the smaller value was taken as the tensile strength of the activated carbon fiber nonwoven fabric.
- Example 1 Poly (2,6-dimethyl-1,4-phenylene ether) (PPO (registered trademark) 640, glass transition temperature (Tg): 221 ° C., manufactured by SABIC Innovative Plastic), manufactured by Technovel Co., Ltd. extruded at 300° C. using a machine (product name: KZW15TW-30MG). The screw rotation speed was set to 700 rpm and the peripheral speed of the screw was set to 33.0 m/min. A gear pump was installed downstream of the extruder to measure the discharge speed of the polymer, and the polymer was extruded through a nozzle (nozzle width: 300 mm) maintained at 320°C.
- PPO registered trademark
- Tg glass transition temperature
- Technovel Co., Ltd. extruded at 300° C. using a machine (product name: KZW15TW-30MG).
- the screw rotation speed was set to 700 rpm and the peripheral speed of the screw was set to 33.0 m/min.
- a gear pump was
- Examples 2 and 3 An activated carbon fiber non-woven fabric was obtained in the same manner as in Example 1, except that the screw rotation speed and the peripheral speed of the screw were changed as shown in Table 1. Table 1 shows the evaluation results of the obtained activated carbon fiber nonwoven fabric.
- Example 4 Poly (2,6-dimethyl-1,4-phenylene ether) (PPO (registered trademark) 640, glass transition temperature (Tg): 221 ° C., manufactured by SABIC Innovative Plastic), manufactured by Technovel Co., Ltd. extruded at 300° C. using a machine (product name: KZW15TW-30MG). The screw rotation speed was set to 700 rpm and the peripheral speed of the screw was set to 33.0 m/min. A gear pump was installed downstream of the extruder to meter the polymer discharge rate and extrude it through a nozzle maintained at 320°C. A polyphenylene ether fiber was obtained by winding the polymer discharged from the nozzle.
- PPO registered trademark
- Tg glass transition temperature
- Technovel Co., Ltd. extruded at 300° C. using a machine (product name: KZW15TW-30MG).
- the screw rotation speed was set to 700 rpm and the peripheral speed of the screw was set to 33.0 m
- the front and back sides were processed by a needle punch machine under the conditions of a needle density of 100/cm 2 , a needle depth of 12 mm (front) and 7 mm (back), to form a short fiber nonwoven fabric.
- the obtained short fiber nonwoven fabric was heat-treated in the air at 200° C. for 2 hours, then heated to 280° C. and heat-treated in the air at 280° C. for 0.5 hour.
- carbonization treatment at 900° C. for 1 hour in nitrogen, 11 vol. % of water vapor at 900° C. for 1 hour to obtain an activated carbon fiber non-woven fabric.
- Table 1 shows the evaluation results of the obtained activated carbon fiber nonwoven fabric.
- Comparative example 1 Poly (2,6-dimethyl-1,4-phenylene ether) (PPO (registered trademark) 640, glass transition temperature (Tg): 221 ° C., manufactured by SABIC Innovative Plastic) was added to N-methyl-2-pyrrolidone. After dissolution, a stock solution of 20% by mass of poly(2,6-dimethyl-1,4-phenylene ether) was obtained. The resulting stock solution was extruded from a spinning nozzle into water by a wet spinning method, and wound up to obtain a polyphenylene ether ether fiber.
- PPO registered trademark
- Tg glass transition temperature
- the front and back sides were processed by a needle punch machine under the conditions of a needle density of 100/cm 2 , a needle depth of 12 mm (front) and 7 mm (back), to form a short fiber nonwoven fabric.
- the obtained short fiber nonwoven fabric was heat-treated in the air at 200° C. for 2 hours, then heated to 280° C. and heat-treated in the air at 280° C. for 0.5 hour.
- the obtained activated carbon fiber nonwoven fabric had a large width shrinkage rate and was significantly deformed.
- the fusion between the fibers was remarkable, and the flexibility was extremely low.
- the weight yield after carbonization and activation was also low.
- Comparative example 2 Using a phenolic fiber with a fiber length of 70 mm (manufactured by Gunei Chemical Industry Co., Ltd., Kynor), a needle punch machine was used at a needle density of 100 / cm 2 and a needle depth of 12 mm (front) and 7 mm (back). The front and back surfaces were treated to obtain a short fiber nonwoven fabric.
- the Kynol used contains 5% by weight of behenic acid amide. Table 1 shows the evaluation results of the obtained short fiber nonwoven fabric. Further, the obtained short fiber nonwoven fabric was carbonized in nitrogen at 900° C. for 1 hour, and then subjected to 11 vol. % of water vapor at 900° C. for 1 hour to obtain an activated carbon fiber non-woven fabric.
- Combustion gases generated during carbonization and activation contained harmful decomposition gases (HCN, NOx).
- the activated carbon fibers of Examples 1 to 4 have a larger fiber diameter than the activated carbon fibers of Comparative Example 2, and are excellent in mechanical strength, so they are excellent in workability.
- the activated carbon fiber of Comparative Example 2 contains harmful decomposition gases (HCN and NOx) in the combustion gas generated during carbonization and activation. And the combustion gas generated during activation does not contain harmful cracked gas.
- the activated carbon fiber nonwoven fabrics of Examples 1 to 4 have a larger fiber diameter and a smaller pressure loss coefficient than the activated carbon fiber nonwoven fabric of Comparative Example 2, and therefore can be suitably used for applications such as filters.
- the activated carbon fiber non-woven fabric of Comparative Example 1 had a small amount of dislocation structures in the polyphenylene ether fiber, so the width shrinkage rate was large and the deformation was remarkable. In addition, the fusion between the fibers was remarkable, and the flexibility was low. Furthermore, the weight yield after carbonization and activation was also low.
- the activated carbon fiber of the present invention can be suitably used as an activated carbon fiber with excellent adsorption performance and physical properties in place of phenolic activated carbon fiber.
- Organic solvent recovery system 2A Adsorption tank 2B: Adsorption tank 3: Solvent mixed gas containing organic solvent (gas to be treated) 4: Pre-filter 5: Air blower 6: Lower damper 7: Lower damper 8: Activated carbon fiber nonwoven fabric element 9: Activated carbon fiber nonwoven fabric 10: Upper damper 11: Upper damper 12: Exhaust port 13: Water vapor supply line 14: Automatic valve 15 : Automatic valve 16: Desorption gas line 17: Condenser 18: Cooling water supply line 19: Separator 20: Return gas line 22: Organic solvent adsorption/desorption treatment device 101: Hopper 102: Extruder 103: Gear pump 104: Filter material 105: Spinning nozzle 106: Filter 107: Thermal insulation space 108: Introduction of inert gas 109: Heating torch
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Fibers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
(式中、R1、R2は、それぞれ独立に、水素原子、又は、置換基を有していてもよい炭素数1~10の炭化水素基であり、R3は、それぞれ独立に、置換基を有していてもよい炭素数1~10の炭化水素基を表す)
で表される繰り返し単位であり、前記転位構造が、下記一般式(2):
(式中、R1、R2は、それぞれ独立に、水素原子、又は、置換基を有していてもよい炭素数1~10の炭化水素基であり、R3は、それぞれ独立に、置換基を有していてもよい炭素数1~10の炭化水素基であり、R3’は、前記R3から水素原子が1個除かれた2価の基を表す)
で表される構造であることが好ましい。
被処理ガスを接触させることで有機溶剤を吸着し、水蒸気又は加熱ガスを接触させることで吸着した有機溶剤を脱着する吸着材を充填した吸着槽を備えており、
前記吸着材が、前記活性炭素繊維成形体を含む、有機溶剤吸脱着処理装置、に関する。
被処理ガスを吸着材に接触させることで有機溶剤を吸着させ、水蒸気又は加熱ガスを前記吸着材に接触させることで吸着した有機溶剤を脱着させ、
前記吸着材が、前記活性炭素繊維成形体を含む、有機溶剤吸脱着処理方法、に関する。
被処理ガスを吸着材に接触させることで有機溶剤を吸着させ、水蒸気又は加熱ガスを前記吸着材に接触させることで吸着した有機溶剤を脱着させ、
前記吸着材が、前記活性炭素繊維成形体を含む、有機溶剤回収方法、に関する。
(式中、R1、R2は、それぞれ独立に、水素原子、又は、置換基を有していてもよい炭素数1~10の炭化水素基であり、R3は、それぞれ独立に、置換基を有していてもよい炭素数1~10の炭化水素基を表す)
で表される繰り返し単位であることが好ましい。また、前記転位構造は、下記一般式(2):
(式中、R1、R2は、それぞれ独立に、水素原子、又は、置換基を有していてもよい炭素数1~10の炭化水素基であり、R3は、それぞれ独立に、置換基を有していてもよい炭素数1~10の炭化水素基であり、R3’は、前記R3から水素原子が1個除かれた2価の基を表す)
で表される転位構造を有することが好ましい。前記一般式(2)中の「~」は、その先の構造は特に限定されないことを示す。「~」の部分は、パラ結合で連続するフェニレンエーテル単位から形成されていてもよく、また、その中に部分的にオルト位で結合する部分を有していてもよい。
本発明で用いるポリフェニレンエーテル成分は、パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転位構造を有するポリフェニレンエーテルを含むものである。
本発明で用いるポリフェニレンエーテル繊維には、前記ポリフェニレンエーテル成分以外の樹脂成分を含むことができる。ポリフェニレンエーテル成分以外の樹脂成分としては、ポリスチレン、ポリエチレン、ポリプロピレンやポリアミド4、ポリアミド6、ポリアミド10、ポリアミド11、ポリアミド66、ポリアミド6T、ポリアミド6T/11等のポリアミド、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル、ポリカーボネート等を挙げることができる。但し、その含有量は、5質量%以下であることが好ましく、2質量%以下であることがより好ましく、含まない(0質量%)ことがさらに好ましい。
本発明で用いるポリフェニレンエーテル繊維は、前記転位構造を有するポリフェニレンエーテル成分を含むものであり、その製造方法は特に限定されるものではないが、例えば、後述のポリフェニレンエーテル繊維の製造方法により製造することができる。
本発明で用いるポリフェニレンエーテル繊維成形体は、前記ポリフェニレンエーテル繊維を含むものであり、その形態としては、例えば、紙、織物、編物、不織布などが挙げられる。これらのうち、汎用性が高いことから不織布が好ましく、短繊維不織布又は長繊維不織布であることがより好ましい。ポリフェニレンエーテル繊維成形体の製造方法は特に限定されるものではないが、例えば、後述のポリフェニレンエーテル繊維成形体の製造方法により製造することができる。
本発明の活性炭素繊維は、前記ポリフェニレンエーテル繊維、前記ポリフェニレンエーテル繊維を不融化した不融化ポリフェニレンエーテル繊維、前記ポリフェニレンエーテル繊維又は前記不融化ポリフェニレンエーテル繊維を耐炎化した耐炎化ポリフェニレンエーテル繊維、又は前記いずれかのポリフェニレンエーテル繊維を炭素化した炭素繊維を賦活(賦活処理)して得られるものであり、その製造方法は特に限定されるものではないが、例えば、後述の活性炭素繊維の製造方法により製造することができる。
本発明の活性炭素繊維成形体は、前記活性炭素繊維を含むものである。活性炭素繊維成形体としては、例えば、活性炭素繊維紙、活性炭素繊維織物、活性炭素繊維編物、活性炭素繊維不織布などが挙げられる。これらのうち、汎用性が高いことから活性炭素繊維不織布が好ましい。活性炭素繊維不織布は、例えば、円筒に巻き付けて円筒状の活性炭素繊維不織布エレメントに加工され、有機溶剤吸脱着処理装置の吸着材、及び前記有機溶剤吸脱着処理装置を用いた有機溶剤回収システムの吸着材として用いられる。
本発明で用いるポリフェニレンエーテル繊維の製造方法は、例えば、原料であるポリフェニレンエーテルを、シリンダー及びスクリューを備えた押出機により溶融押出する工程を有する。
本発明で用いるポリフェニレンエーテル繊維成形体の製造方法は特に限定されるものではなく、本分野において通常用いられる方法を適宜採用することができる。本発明の好ましい成形体の一例である不織布の製造方法としては、例えば、スパンボンド法、メルトブロー法、スパンレース法、ニードルパンチ法、サーマルボンド法、ケミカルボンド法等を挙げることができる。これらの中でも、短繊維不織布の製造方法であるニードルパンチ法や、長繊維不織布の製造方法であるスパンボンド法が好ましい。
本発明で用いる不融化ポリフェニレンエーテル繊維又は不融化ポリフェニレンエーテル繊維成形体は、前記ポリフェニレンエーテル繊維又はポリフェニレンエーテル繊維成形体を、空気中で、120~230℃で、0.1~100時間熱処理して不融化(不融化処理)することにより製造することができる。ここで、空気中とは、特に調整されていない環境のことである。また、処理温度は、140~220℃であることが好ましく、150~210℃であることがより好ましい。また、処理時間は、0.1~100時間であることが好ましく、0.5~80時間であることがより好ましく、1~50時間であることがさらに好ましい。不融化処理温度及び不融化処理時間を前記範囲とすることで、炭素化及び/又は賦活する際の繊維同士の融着をより抑制できるため好ましい。また、賦活して得られる活性炭素繊維及び活性炭素繊維成形体の機械的強度、柔軟性及び寸法安定性をバランスよく両立させることができるため好ましい。さらに、炭素化及び/又は賦活した際に発生するタール量がより低減され、炭素化及び/又は賦活した後の重量収率が向上する傾向にあるため好ましい。
本発明で用いる耐炎化ポリフェニレンエーテル繊維又は耐炎化ポリフェニレンエーテル繊維成形体は、前記不融化ポリフェニレンエーテル繊維又は不融化ポリフェニレンエーテル繊維成形体を、空気中で、230~400℃で、0.01~10時間熱処理して耐炎化(耐炎化処理)することにより製造することができる。また、本発明で用いる耐炎化ポリフェニレンエーテル繊維又は耐炎化ポリフェニレンエーテル繊維成形体は、前記ポリフェニレンエーテル繊維又はポリフェニレンエーテル繊維成形体を、空気中で、0.05~10℃/分の昇温速度で120~230℃まで昇温し、その後、230~400℃で、0.01~10時間熱処理して耐炎化(耐炎化処理)することにより製造してもよい。空気中とは、特に調整されていない環境のことである。また、処理温度は、240~380℃であることが好ましく、250~360℃であることがより好ましい。また、処理時間は、0.03~4時間であることが好ましく、0.05~3時間であることがより好ましい。耐炎化処理温度及び耐炎化処理時間を前記範囲とすることで、炭素化及び/又は賦活する際の繊維同士の融着をより抑制できるため好ましい。また、賦活して得られる活性炭素繊維及び活性炭素繊維成形体の機械的強度、柔軟性及び寸法安定性をバランスよく両立させることができるため好ましい。さらに、炭素化及び/又は賦活した際に発生するタール量がより低減され、炭素化及び/又は賦活した後の重量収率が向上する傾向にあるため好ましい。
本発明の活性炭素繊維は、前記ポリフェニレンエーテル繊維、前記不融化ポリフェニレンエーテル繊維、前記耐炎化ポリフェニレンエーテル繊維、又は前記いずれかのポリフェニレンエーテル繊維を炭素化(炭素化処理)した炭素繊維、を賦活(賦活処理)することにより製造することができる。また、本発明の活性炭素繊維成形体は、前記ポリフェニレンエーテル繊維成形体、前記不融化ポリフェニレンエーテル繊維成形体、前記耐炎化ポリフェニレンエーテル繊維成形体、又は前記いずれかのポリフェニレンエーテル繊維成形体を炭素化した炭素繊維成形体、を賦活することにより製造することができる。また、本発明の活性炭素繊維成形体は、前記ポリフェニレンエーテル繊維、前記不融化ポリフェニレンエーテル繊維、前記耐炎化ポリフェニレンエーテル繊維、又は前記いずれかのポリフェニレンエーテル繊維を炭素化した炭素繊維、を賦活し、得られた活性炭素繊維を加工、成形して製造してもよい。
本発明の有機溶剤回収システムの一実施形態を図2にて説明する。有機溶剤回収システム1は、吸着槽2A及び2Bを有する有機溶剤吸脱着処理装置22を備え、吸着槽2A及び2Bの内部には円筒状かご型の巻芯に活性炭素繊維不織布9(吸着材)を層状に巻き付けた中空円筒構造で、その外周面を金網で固定した活性炭素繊維不織布エレメント8を着脱可能に設けている。図2では、2つの吸着槽を有する有機溶剤回収システム1を例示しているが、吸着槽は1つでもよく、3つ以上有していてもよい。なお、活性炭素繊維不織布エレメント8の底部は閉鎖されている。
共鳴周波数600MHzの1H-NMR測定にて行った。測定装置は、BRUKER社製のNMR装置(装置名:AVANCE-NEO600)を用い、測定は以下の通りに行った。
実施例及び比較例で得られた成形体(試料)10mgを重クロロホルムに溶解後、その溶液を2時間以内にNMRチューブに充填し測定を行った。ロック溶媒には重クロロホルムを用い、待ち時間を1秒、データ取り込み時間を4秒、積算回数を64回とした。
また、溶媒として重ベンゼンを用いても良い。
転位構造量の解析は以下の通り実施した。
ポリフェニレンエーテルの3、5位のR1、R2基のプロトンに由来するピークと、転位構造中のR3’で示される2価の基(メチレン基等)のプロトンに由来するピークのそれぞれのピーク積分値をA、Bとし、転位構造量は以下の式により求めた。
転位構造量(mol%)=(B/(A+B))×100
日本電子(株)製の電子スピン共鳴装置(ESR装置)(装置名:JES-FA100)を用いて以下の条件でラジカル量を測定した。サンプルは嵩密度が0.1~0.2g/cm3になるように約0.1gを詰めた。ただし、サンプル形状によって0.1~0.2g/cm3の範囲に入らない場合は0.2g/cm3以上となっても良い。また、ラジカル量の定量のため、マンガンマーカーを同時測定した。ラジカル量は次式より求めた。
サンプルの規格化強度C=サンプルのシグナル強度(-)/マンガン強度(-)
ブランクの規格化強D=ブランクのシグナル強度(-)/マンガン強度(-)
ラジカル量(g-1)=(C-D)/サンプル重量(g)
サンプル及びブランクのシグナル強度は322.1~329.3mTの範囲の2回積分値、マンガンマーカーのマンガンのシグナル強度は320~322mTの範囲の2回積分値を用いた。なお、ここでのブランクのシグナル強度とは、ESR装置にサンプルを加えない状態で測定した場合のシグナル強度である。
TAインスツルメンツ(株)製の示差走査熱量分析計(型式:DSC-Q100)を用いて、成形体(繊維)2mgを、窒素雰囲気下において30℃から250℃まで、昇温速度10℃/分にて測定し、ガラス転移点温度以下のベースラインの延長線と遷移部における最大傾斜を示す接線との交点の温度をガラス転移点温度(Tg)とした。
走査電子顕微鏡(製品名:SU1510、日立ハイテクノロジーズ社製)を用いて顕微鏡画像を観察し、その顕微鏡画像から100本以上の繊維径を読み取り、読み取った繊維径を平均して求めた。なお、繊維径とは繊維直径を意味する。
試料を10cm角の正方形に切り出して、炭素化及び賦活処理した後、縦方向及び横方向の寸法から収縮率を測定し、その平均値を計算した。
ポリフェニレンエーテル繊維不織布を130℃で12時間真空乾燥して秤量し、炭素化及び賦活処理前の乾燥重量Eを測定した。炭素化及び賦活処理を行った後、再び130℃で12時間真空乾燥して秤量し、炭素化及び賦活処理後の乾燥重量Fを測定した。重量収率は下記の式で求めた。
重量収率(重量%)=(F/E)×100
試料を30mg採取し、130℃で12時間真空乾燥して秤量し、自動比表面積測定装置GEMINI VII2390(Micromeritics社製)を使用して測定した。液体窒素の沸点(-195.8℃)における窒素ガスの吸着量を相対圧が0.02~0.95の範囲で測定し、試料の吸着等温線を作成した。相対圧が0.02~0.15の範囲での結果をもとに、BET法により重量あたりのBET比表面積(m2/g)を求めた。
活性炭素繊維成形体の場合は、幅25mm、長さ100mmの試験片にサンプリングし、チャック間距離を50mm、引張速度を20mm/minとして破断強度を測定し、当該値を試験片の断面積(幅×厚み)で除することにより算出した(単位N/cm2)。なお、厚みは、面積4cm2の円盤を用いて、活性炭素繊維成形体にかかる荷重を15gf/cm2にして測定した。幅方向に切り取った試験片の引張強度の平均値、及び長さ方向に切り取った試験片の引張強度の平均値のうち、小さい値を、活性炭素繊維不織布の引張強度とした。
試料を130℃で12時間真空乾燥した後、単位面積あたりの質量を測定して単位g/m2で求めた。
活性炭素繊維成形体を直径27mmの円形に切り出して、内径27mmの円筒管へ厚み3cm、充填密度100kg/m3となるように荷重を掛けながら充填した。25℃、相対湿度50%RHの空気を線速30cm/秒で円筒管へ供給し、充填した不織布の一次側と二次側の静圧差(mmAq)を測定した。得られた静圧差から次式で不織布の圧力損失係数(mmAq・s/cm2)を求めた。
圧力損失係数(mmAq・s/cm2)=圧損(mmAq)÷線速(cm/s)÷厚み(cm)
前記ポリフェニレンエーテル繊維、前記不融化ポリフェニレンエーテル繊維、ポリフェニレンエーテル繊維成形体、又は前記不融化ポリフェニレンエーテル繊維成形体を炭素化及び賦活処理した時に発生する分解ガスを直接燃焼装置にて700℃で燃焼させ、その燃焼ガスを排出した。燃焼ガス中のシアン化水素(HCN)、窒素酸化物(NO+NO2)の濃度をドレーゲル検知管で測定した。
スクリューの周速は以下の式により求めた。
スクリューの周速(m/min)=スクリュー直径(mm)×0.00314×スクリュー回転数(rpm)
ポリ(2,6-ジメチル-1,4-フェニレンエーテル)(PPO(商標登録)640、ガラス転移点温度(Tg):221℃、SABIC Innovative Plas tic製)を、(株)テクノベル製2軸押出機(製品名:KZW15TW-30MG)を用いて300℃で押出した。スクリュー回転数は700rpmに設定してスクリューの周速を33.0m/minとした。押出機の下流には、ギアポンプを設置してポリマーの吐出速度を計量し、320℃に保ったノズル(ノズル幅300mm)へ押し出した。ノズルから吐出したポリマーを幅400mmのコレクターで受けた後、210℃の加熱ローラーで融着させて長繊維シートを得た。長繊維シートの目付は60g/m2であった。得られた長繊維シートを5枚重ね、ニードルパンチ機により、針密度75本/cm2、針深度12mm(表)、7mm(裏)の条件で表裏処理を行い、長繊維不織布を得た。得られた長繊維不織布を空気中にて200℃で2時間熱処理をしたあと、280℃まで昇温し、空気中にて280℃で0.5時間熱処理をした。続けて窒素中にて900℃で1時間炭素化処理したのち、11vol.%の水蒸気存在下の窒素中にて900℃で1時間賦活処理をして活性炭素繊維不織布を得た。得られた活性炭素繊維不織布の各評価結果を表1に示す。
スクリュー回転数、スクリューの周速を表1に記載のように変更した以外は実施例1と同様にして活性炭素繊維不織布を得た。得られた活性炭素繊維不織布の各評価結果を表1に示す。
ポリ(2,6-ジメチル-1,4-フェニレンエーテル)(PPO(商標登録)640、ガラス転移点温度(Tg):221℃、SABIC Innovative Plas tic製)を、(株)テクノベル製2軸押出機(製品名:KZW15TW-30MG)を用いて300℃で押出した。スクリュー回転数は700rpmに設定してスクリューの周速を33.0m/minとした。押出機の下流には、ギアポンプを設置してポリマーの吐出速度を計量し、320℃に保ったノズルへ押し出した。ノズルから吐出したポリマーを巻き取ってポリフェニレンエーテル繊維を得た。得られたポリフェニレンエーテル繊維を長さ70mmにカットした後、ニードルパンチ機により、針密度100本/cm2、針深度12mm(表)、7mm(裏)の条件で表裏処理を行い、短繊維不織布を得た。得られた短繊維不織布を空気中にて200℃で2時間熱処理をしたあと、280℃まで昇温し、空気中にて280℃で0.5時間熱処理をした。続けて窒素中にて900℃で1時間炭素化処理したのち、11vol.%の水蒸気存在下の窒素中にて900℃で1時間賦活処理をして活性炭素繊維不織布を得た。得られた活性炭素繊維不織布の各評価結果を表1に示す。
ポリ(2,6-ジメチル-1,4-フェニレンエーテル)(PPO(商標登録)640、ガラス転移点温度(Tg):221℃、SABIC Innovative Plas tic製)を、N-メチル-2-ピロリドンに溶解させてポリ(2,6-ジメチル-1,4-フェニレンエーテル)20質量%の原液を得た。得られた原液を紡糸ノズルから水中に湿式紡糸法によって押し出し、これを巻き取ってポリフェニレンエーテルエーテル繊維を得た。得られたポリフェニレンエーテル繊維を長さ70mmにカットした後、ニードルパンチ機により、針密度100本/cm2、針深度12mm(表)、7mm(裏)の条件で表裏処理を行い、短繊維不織布を得た。得られた短繊維不織布を空気中にて200℃で2時間熱処理をしたあと、280℃まで昇温し、空気中にて280℃で0.5時間熱処理をした。続けて窒素中にて900℃で1時間炭素化処理したのち、11vol.%の水蒸気存在下の窒素中にて900℃で1時間賦活処理をして活性炭素繊維不織布を得た。得られた活性炭素繊維不織布は幅収縮率が大きく、変形が著しかった。また、繊維同士の融着が著しく、極めて柔軟性が低かった。さらに、炭素化及び賦活後の重量収率も低かった。
繊維長70mmのフェノール系繊維(群栄化学工業(株)製、カイノール)を使用し、ニードルパンチ機により、針密度100本/cm2、針深度12mm(表)、7mm(裏)の条件で表裏処理を行い、短繊維不織布を得た。使用したカイノールは、ベヘン酸アミドを5質量%含有する。得られた短繊維不織布の各評価結果を表1に示す。さらに、得られた短繊維不織布を窒素中にて900℃で1時間炭素化処理したのち、11vol.%の水蒸気存在下の窒素中にて900℃で1時間賦活処理をして活性炭素繊維不織布を得た。炭素化及び賦活時に発生する燃焼ガスには有害な分解ガス(HCN、NOx)が含まれていた。
2A:吸着槽
2B:吸着槽
3 :有機溶剤を含有した溶剤混合ガス(被処理ガス)
4 :プレフィルター
5 :送風機
6 :下ダンパー
7 :下ダンパー
8 :活性炭素繊維不織布エレメント
9 :活性炭素繊維不織布
10:上ダンパー
11:上ダンパー
12:排気口
13:水蒸気供給ライン
14:自動弁
15:自動弁
16:脱着ガスライン
17:コンデンサー
18:冷却水供給ライン
19:セパレーター
20:戻りガスライン
22:有機溶剤吸脱着処理装置
101:ホッパー
102:押出機
103:ギアポンプ
104:濾材
105:紡糸ノズル
106:フィルター
107:保温スペース
108:不活性ガスの導入
109:加熱トーチ
Claims (32)
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維、前記ポリフェニレンエーテル繊維が不融化された不融化ポリフェニレンエーテル繊維、前記ポリフェニレンエーテル繊維又は前記不融化ポリフェニレンエーテル繊維が耐炎化された耐炎化ポリフェニレンエーテル繊維、又は前記いずれかのポリフェニレンエーテル繊維が炭素化された炭素繊維、が賦活された活性炭素繊維。
- 前記パラ位の結合で連続する繰り返し単位が、下記一般式(1):
(式中、R1、R2は、それぞれ独立に、水素原子、又は、置換基を有していてもよい炭素数1~10の炭素化水素基であり、R3は、それぞれ独立に、置換基を有していてもよい炭素数1~10の炭素化水素基を表す)
で表される繰り返し単位であり、前記転位構造が、下記一般式(2):
(式中、R1、R2は、それぞれ独立に、水素原子、又は、置換基を有していてもよい炭素数1~10の炭素化水素基であり、R3は、それぞれ独立に、置換基を有していてもよい炭素数1~10の炭素化水素基であり、R3’は、前記R3から水素原子が1個除かれた2価の基を表す)
で表される構造である請求項1に記載の活性炭素繊維。 - 前記転位構造を有するポリフェニレンエーテル成分における転位量が、前記ポリフェニレンエーテル成分中の全ポリフェニレンエーテル構造単位に対して、0.01モル%以上である請求項1又は2に記載の活性炭素繊維。
- 前記ポリフェニレンエーテル成分の含有量が、前記ポリフェニレンエーテル繊維中に95質量%以上である請求項1~3のいずれかに記載の活性炭素繊維。
- 前記転位構造が、核磁気共鳴スペクトル(1H-NMR)測定において、6.8~7.0ppmの範囲と3.8~4.0ppmの範囲にピークを示す請求項1~4のいずれかに記載の活性炭素繊維。
- 前記ポリフェニレンエーテル繊維中のラジカル量が、50g-1以上である請求項1~5のいずれかに記載の活性炭素繊維。
- 前記ポリフェニレンエーテル繊維のガラス転移点温度が、190℃以上210℃以下である請求項1~6のいずれかに記載の活性炭素繊維。
- 前記活性炭素繊維の繊維径が、10μm以上100μm以下である請求項1~7のいずれかに記載の活性炭素繊維。
- 前記活性炭素繊維のBET比表面積が、500m2/g以上2500m2/g以下である請求項1~8のいずれかに記載の活性炭素繊維。
- 請求項1~9のいずれかに記載の活性炭素繊維を含む活性炭素繊維成形体。
- 前記活性炭素繊維成形体は、活性炭素繊維不織布である請求項10に記載の活性炭素繊維成形体。
- 前記活性炭素繊維不織布の引張強度が、4N/cm2以上である請求項11に記載の活性炭素繊維成形体。
- 前記活性炭素繊維不織布が、短繊維不織布である請求項11又は12に記載の活性炭素繊維成形体。
- 前記活性炭素繊維不織布が、長繊維不織布である請求項11又は12に記載の活性炭素繊維成形体。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を作製する工程、及び前記ポリフェニレンエーテル繊維を賦活する工程を含む請求項1~9のいずれかに記載の活性炭素繊維の製造方法。
- 賦活する工程の前に、前記ポリフェニレンエーテル繊維を炭素化する工程を含む請求項15に記載の活性炭素繊維の製造方法。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を作製する工程、前記ポリフェニレンエーテル繊維を不融化して不融化ポリフェニレンエーテル繊維を作製する工程、及び前記不融化ポリフェニレンエーテル繊維を賦活する工程を含む請求項1~9のいずれかに記載の活性炭素繊維の製造方法。
- 賦活する工程の前に、前記不融化ポリフェニレンエーテル繊維を炭素化する工程を含む請求項17に記載の活性炭素繊維の製造方法。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を作製する工程、前記ポリフェニレンエーテル繊維を耐炎化して耐炎化ポリフェニレンエーテル繊維を作製する工程、及び前記耐炎化ポリフェニレンエーテル繊維を賦活する工程を含む請求項1~9のいずれかに記載の活性炭素繊維の製造方法。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を作製する工程、前記ポリフェニレンエーテル繊維を不融化して不融化ポリフェニレンエーテル繊維を作製する工程、前記不融化ポリフェニレンエーテル繊維を耐炎化して耐炎化ポリフェニレンエーテル繊維を作製する工程、及び前記耐炎化ポリフェニレンエーテル繊維を賦活する工程を含む請求項1~9のいずれかに記載の活性炭素繊維の製造方法。
- 賦活する工程の前に、前記耐炎化ポリフェニレンエーテル繊維を炭素化する工程を含む請求項19又は20に記載の活性炭素繊維の製造方法。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を加工してポリフェニレンエーテル繊維成形体を作製する工程、及び前記ポリフェニレンエーテル繊維成形体を賦活する工程を含む請求項10~14のいずれかに記載の活性炭素繊維成形体の製造方法。
- 賦活する工程の前に、前記ポリフェニレンエーテル繊維成形体を炭素化する工程を含む請求項22に記載の活性炭素繊維成形体の製造方法。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を加工してポリフェニレンエーテル繊維成形体を作製する工程、前記ポリフェニレンエーテル繊維成形体を不融化して不融化ポリフェニレンエーテル繊維成形体を作製する工程、及び前記不融化ポリフェニレンエーテル繊維成形体を賦活する工程を含む請求項10~14のいずれかに記載の活性炭素繊維成形体の製造方法。
- 賦活する工程の前に、前記不融化ポリフェニレンエーテル繊維成形体を炭素化する工程を含む請求項24に記載の活性炭素繊維成形体の製造方法。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を加工してポリフェニレンエーテル繊維成形体を作製する工程、前記ポリフェニレンエーテル繊維成形体を耐炎化して耐炎化ポリフェニレンエーテル繊維成形体を作製する工程、及び前記耐炎化ポリフェニレンエーテル繊維成形体を賦活する工程を含む請求項10~14のいずれかに記載の活性炭素繊維成形体の製造方法。
- パラ位の結合で連続する繰り返し単位中に、オルト位の結合で接続する転移構造を有するポリフェニレンエーテル成分を含むポリフェニレンエーテル繊維を加工してポリフェニレンエーテル繊維成形体を作製する工程、前記ポリフェニレンエーテル繊維成形体を不融化して不融化ポリフェニレンエーテル繊維成形体を作製する工程、前記不融化ポリフェニレンエーテル繊維成形体を耐炎化して耐炎化ポリフェニレンエーテル繊維成形体を作製する工程、及び前記耐炎化ポリフェニレンエーテル繊維成形体を賦活する工程を含む請求項10~14のいずれかに記載の活性炭素繊維成形体の製造方法。
- 賦活する工程の前に、前記耐炎化ポリフェニレンエーテル繊維成形体を炭素化する工程を含む請求項26又は27に記載の活性炭素繊維成形体の製造方法。
- 有機溶剤を含有する被処理ガスから有機溶剤を吸着除去することで当該被処理ガスを清浄化し、さらに吸着した有機溶剤を脱着する有機溶剤吸脱着処理装置であって、
被処理ガスを接触させることで有機溶剤を吸着し、水蒸気又は加熱ガスを接触させることで吸着した有機溶剤を脱着する吸着材を充填した吸着槽を備えており、
前記吸着材が、請求項10~14のいずれかに記載の活性炭素繊維成形体を含む、有機溶剤吸脱着処理装置。 - 請求項29に記載の有機溶剤吸脱着処理装置、及び前記有機溶剤吸脱着処理装置から排出される脱着ガスを凝縮して有機溶剤を回収する有機溶剤回収装置を含む有機溶剤回収システム。
- 有機溶剤を含有する被処理ガスから有機溶剤を吸着除去することで当該被処理ガスを清浄化し、さらに吸着した有機溶剤を脱着する有機溶剤吸脱着処理方法であって、
被処理ガスを吸着材に接触させることで有機溶剤を吸着させ、水蒸気又は加熱ガスを前記吸着材に接触させることで吸着した有機溶剤を脱着させ、
前記吸着材が、請求項10~14のいずれかに記載の活性炭素繊維成形体を含む、有機溶剤吸脱着処理方法。 - 有機溶剤を含有する被処理ガスから有機溶剤を吸着除去することで当該被処理ガスを清浄化し、さらに吸着した有機溶剤を脱着し、排出される脱着ガスを凝縮して有機溶剤を回収する有機溶剤回収方法であって、
被処理ガスを吸着材に接触させることで有機溶剤を吸着させ、水蒸気又は加熱ガスを前記吸着材に接触させることで吸着した有機溶剤を脱着させ、
前記吸着材が、請求項10~14のいずれかに記載の活性炭素繊維成形体を含む、有機溶剤回収方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US18/283,321 US11975974B2 (en) | 2021-03-23 | 2022-03-10 | Activated carbon fiber, activated carbon fiber formed body, and method for producing thereof, organic solvent adsorption/desorption device, organic solvent recovery system, method for adsorbing/desorbing organic solvent, and method for recovering organic solvent |
CN202280021601.3A CN117062946A (zh) | 2021-03-23 | 2022-03-10 | 活性碳纤维、活性碳纤维成形体以及它们的制造方法、有机溶剂吸脱附处理装置、有机溶剂回收系统、有机溶剂吸脱附处理方法以及有机溶剂回收方法 |
JP2022545424A JP7264316B2 (ja) | 2021-03-23 | 2022-03-10 | 活性炭素繊維、活性炭素繊維成形体、及びそれらの製造方法、有機溶剤吸脱着処理装置、有機溶剤回収システム、有機溶剤吸脱着処理方法、並びに有機溶剤回収方法 |
KR1020237029136A KR102672755B1 (ko) | 2021-03-23 | 2022-03-10 | 활성 탄소 섬유, 활성 탄소 섬유 성형체, 및 그들의 제조 방법, 유기 용제 흡탈착 처리 장치, 유기 용제 회수 시스템, 유기 용제 흡탈착 처리 방법, 그리고 유기 용제 회수 방법 |
EP22775167.4A EP4317553A1 (en) | 2021-03-23 | 2022-03-10 | Activated carbon fiber, activated carbon fiber molded body, method for producing activated carbon fiber, method for producing activated carbon fiber molded body, organic solvent adsorption/desorption device, organic solvent recovery system, method for adsorbing/desorbing organic solvent, and method for recovering organic solvent |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-048767 | 2021-03-23 | ||
JP2021048767 | 2021-03-23 | ||
JP2021-057459 | 2021-03-30 | ||
JP2021057459 | 2021-03-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022202375A1 true WO2022202375A1 (ja) | 2022-09-29 |
Family
ID=83395689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/010667 WO2022202375A1 (ja) | 2021-03-23 | 2022-03-10 | 活性炭素繊維、活性炭素繊維成形体、及びそれらの製造方法、有機溶剤吸脱着処理装置、有機溶剤回収システム、有機溶剤吸脱着処理方法、並びに有機溶剤回収方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US11975974B2 (ja) |
EP (1) | EP4317553A1 (ja) |
JP (1) | JP7264316B2 (ja) |
TW (1) | TW202244339A (ja) |
WO (1) | WO2022202375A1 (ja) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0655254B2 (ja) | 1986-09-29 | 1994-07-27 | 株式会社大氣社 | 円筒型回転式ガス処理装置 |
US20030161781A1 (en) * | 2001-10-01 | 2003-08-28 | Israel Cabasso | Novel carbon materials and carbon/carbon composites based on modified poly (phenylene ether) for energy production and storage devices, and methods of making them |
JP2004105806A (ja) | 2002-09-13 | 2004-04-08 | Toyobo Co Ltd | 有機溶剤処理装置 |
JP2011106051A (ja) * | 2009-11-17 | 2011-06-02 | Toyobo Co Ltd | 活性炭素繊維 |
JP2012052283A (ja) | 2011-10-31 | 2012-03-15 | Gun Ei Chem Ind Co Ltd | フェノール系炭素繊維の製造方法及びフェノール系活性炭素繊維の製造方法 |
JP2013111552A (ja) | 2011-11-30 | 2013-06-10 | Toyobo Co Ltd | 有機溶剤含有ガス処理装置 |
JP3229841U (ja) * | 2020-06-19 | 2020-12-17 | 東洋紡株式会社 | 吸着ユニット、吸着ロータ、吸着処理装置、および、処理システム |
WO2021200223A1 (ja) * | 2020-03-31 | 2021-10-07 | 東洋紡株式会社 | 不融化ポリフェニレンエーテル繊維、不融化ポリフェニレンエーテル成形体、炭素繊維、活性炭素繊維、炭素繊維成形体、活性炭素繊維成形体、及びその製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000281893A (ja) | 1999-04-01 | 2000-10-10 | Mitsubishi Rayon Co Ltd | ポリフェニレンエーテル系樹脂組成物 |
WO2001081451A1 (fr) | 2000-04-21 | 2001-11-01 | Asahi Kasei Kabushiki Kaisha | Resine de polyphenylene ether modifiee |
JP2003160662A (ja) | 2001-11-27 | 2003-06-03 | Matsushita Electric Works Ltd | ポリフェニレンオキサイドの製造方法、ポリフェニレンオキサイド樹脂組成物、プリプレグ、積層板、プリント配線板及び多層プリント配線板 |
US20150166789A1 (en) | 2013-12-18 | 2015-06-18 | Sabic Innovative Plastics Ip B.V. | Poly(phenylene ether) fiber, method of forming, and articles therefrom |
JP2016193412A (ja) | 2015-04-01 | 2016-11-17 | 東洋紡株式会社 | 有機溶剤含有ガス処理システム |
JP6909568B2 (ja) | 2016-10-04 | 2021-07-28 | 旭化成株式会社 | ポリフェニレンエーテル系樹脂組成物 |
CN109775707A (zh) * | 2017-11-13 | 2019-05-21 | 原东 | 一种比表面积高的新能源汽车用活性炭材料的制备工艺 |
-
2022
- 2022-03-10 JP JP2022545424A patent/JP7264316B2/ja active Active
- 2022-03-10 US US18/283,321 patent/US11975974B2/en active Active
- 2022-03-10 WO PCT/JP2022/010667 patent/WO2022202375A1/ja active Application Filing
- 2022-03-10 EP EP22775167.4A patent/EP4317553A1/en active Pending
- 2022-03-16 TW TW111109554A patent/TW202244339A/zh unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0655254B2 (ja) | 1986-09-29 | 1994-07-27 | 株式会社大氣社 | 円筒型回転式ガス処理装置 |
US20030161781A1 (en) * | 2001-10-01 | 2003-08-28 | Israel Cabasso | Novel carbon materials and carbon/carbon composites based on modified poly (phenylene ether) for energy production and storage devices, and methods of making them |
JP2004105806A (ja) | 2002-09-13 | 2004-04-08 | Toyobo Co Ltd | 有機溶剤処理装置 |
JP2011106051A (ja) * | 2009-11-17 | 2011-06-02 | Toyobo Co Ltd | 活性炭素繊維 |
JP2012052283A (ja) | 2011-10-31 | 2012-03-15 | Gun Ei Chem Ind Co Ltd | フェノール系炭素繊維の製造方法及びフェノール系活性炭素繊維の製造方法 |
JP2013111552A (ja) | 2011-11-30 | 2013-06-10 | Toyobo Co Ltd | 有機溶剤含有ガス処理装置 |
WO2021200223A1 (ja) * | 2020-03-31 | 2021-10-07 | 東洋紡株式会社 | 不融化ポリフェニレンエーテル繊維、不融化ポリフェニレンエーテル成形体、炭素繊維、活性炭素繊維、炭素繊維成形体、活性炭素繊維成形体、及びその製造方法 |
JP3229841U (ja) * | 2020-06-19 | 2020-12-17 | 東洋紡株式会社 | 吸着ユニット、吸着ロータ、吸着処理装置、および、処理システム |
Also Published As
Publication number | Publication date |
---|---|
TW202244339A (zh) | 2022-11-16 |
KR20230137411A (ko) | 2023-10-04 |
EP4317553A1 (en) | 2024-02-07 |
US11975974B2 (en) | 2024-05-07 |
JPWO2022202375A1 (ja) | 2022-09-29 |
US20240101429A1 (en) | 2024-03-28 |
JP7264316B2 (ja) | 2023-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7107465B2 (ja) | 不融化ポリフェニレンエーテル繊維、不融化ポリフェニレンエーテル成形体、炭素繊維、活性炭素繊維、炭素繊維成形体、活性炭素繊維成形体、及びその製造方法 | |
EP2129820B1 (en) | Use of coal combustion flue gas filters | |
EP2278051B1 (en) | Improved fabrics | |
Kang et al. | Efficient removal of high-temperature particulate matters via a heat resistant and flame retardant thermally-oxidized PAN/PVP/SnO2 nanofiber membrane | |
JP7264316B2 (ja) | 活性炭素繊維、活性炭素繊維成形体、及びそれらの製造方法、有機溶剤吸脱着処理装置、有機溶剤回収システム、有機溶剤吸脱着処理方法、並びに有機溶剤回収方法 | |
CN111491708B (zh) | 过滤材料用无纺布及其制造方法 | |
JP5982796B2 (ja) | 有機溶剤含有ガス処理装置 | |
KR102672755B1 (ko) | 활성 탄소 섬유, 활성 탄소 섬유 성형체, 및 그들의 제조 방법, 유기 용제 흡탈착 처리 장치, 유기 용제 회수 시스템, 유기 용제 흡탈착 처리 방법, 그리고 유기 용제 회수 방법 | |
JP2006255693A (ja) | バグフィルター濾布およびバグフィルター | |
CN117062946A (zh) | 活性碳纤维、活性碳纤维成形体以及它们的制造方法、有机溶剂吸脱附处理装置、有机溶剂回收系统、有机溶剂吸脱附处理方法以及有机溶剂回收方法 | |
WO2023054495A1 (ja) | 耐炎化ポリフェニレンエーテル成形体、耐炎化ポリフェニレンエーテル繊維成形体、炭素成形体、活性炭素成形体、及びこれらの製造方法 | |
WO2021060210A1 (ja) | ポリフェニレンエーテル溶融押出成形体、及び、ポリフェニレンエーテル溶融押出成形体の製造方法 | |
JP5076883B2 (ja) | フィルター用フェルト | |
KR102181615B1 (ko) | 폴리이미드와 폴리아크릴로니트릴을 주성분으로 하는 피브릴화가 용이한 2성분 복합섬유 및 그 제조방법 | |
WO2022201311A1 (ja) | 耐炎化ポリフェニレンエーテル成形体、及び、耐炎化ポリフェニレンエーテル成形体の製造方法 | |
KR102181613B1 (ko) | 폴리이미드와 폴리(m-페닐렌이소프탈아미드)를 주성분으로 하는 피브릴화가 용이한 2성분 복합섬유 및 그 제조방법 | |
WO2024048410A1 (ja) | 活性炭素繊維不織布、活性炭素繊維不織布の製造方法、エレメント、有機溶剤吸脱着処理装置、有機溶剤回収システム、有機溶剤吸脱着処理方法、及び有機溶剤回収方法 | |
JP2008161802A (ja) | フィルター用フェルト | |
JP2004024975A (ja) | ガス除去用シート及びフィルタ | |
JPH02241509A (ja) | フィルタ用積層体 | |
JPH02107329A (ja) | 吸着材 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2022545424 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22775167 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20237029136 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020237029136 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280021601.3 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18283321 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022775167 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022775167 Country of ref document: EP Effective date: 20231023 |