WO2020071107A1 - ガス分離方法およびガス分離装置 - Google Patents
ガス分離方法およびガス分離装置Info
- Publication number
- WO2020071107A1 WO2020071107A1 PCT/JP2019/036386 JP2019036386W WO2020071107A1 WO 2020071107 A1 WO2020071107 A1 WO 2020071107A1 JP 2019036386 W JP2019036386 W JP 2019036386W WO 2020071107 A1 WO2020071107 A1 WO 2020071107A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- separation membrane
- mixed gas
- temperature
- support
- Prior art date
Links
- 238000000926 separation method Methods 0.000 title claims abstract description 327
- 239000007789 gas Substances 0.000 claims abstract description 353
- 239000002131 composite material Substances 0.000 claims abstract description 84
- 239000011148 porous material Substances 0.000 claims abstract description 47
- 239000012528 membrane Substances 0.000 claims description 289
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 98
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 96
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 78
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 60
- 239000010457 zeolite Substances 0.000 claims description 60
- 229910021536 Zeolite Inorganic materials 0.000 claims description 59
- 239000001569 carbon dioxide Substances 0.000 claims description 39
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 39
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 229930195733 hydrocarbon Natural products 0.000 claims description 11
- 150000002430 hydrocarbons Chemical class 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 10
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 claims description 10
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 claims description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 150000007524 organic acids Chemical class 0.000 claims description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 claims description 6
- 229960000909 sulfur hexafluoride Drugs 0.000 claims description 6
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims description 6
- 150000001299 aldehydes Chemical class 0.000 claims description 5
- 150000002148 esters Chemical class 0.000 claims description 5
- 150000002576 ketones Chemical class 0.000 claims description 5
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052753 mercury Inorganic materials 0.000 claims description 5
- 150000001298 alcohols Chemical class 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- RBFQJDQYXXHULB-UHFFFAOYSA-N arsane Chemical compound [AsH3] RBFQJDQYXXHULB-UHFFFAOYSA-N 0.000 claims description 4
- 150000002170 ethers Chemical class 0.000 claims description 4
- 239000001307 helium Substances 0.000 claims description 4
- 229910052734 helium Inorganic materials 0.000 claims description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 235000005985 organic acids Nutrition 0.000 claims description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 claims description 3
- 238000001816 cooling Methods 0.000 description 31
- 238000011084 recovery Methods 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 238000007789 sealing Methods 0.000 description 12
- 239000013078 crystal Substances 0.000 description 11
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 10
- 125000004429 atom Chemical group 0.000 description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000012466 permeate Substances 0.000 description 7
- 150000001875 compounds Chemical class 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 239000000377 silicon dioxide Substances 0.000 description 6
- 229910052722 tritium Inorganic materials 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 238000001027 hydrothermal synthesis Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 3
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 3
- 125000002485 formyl group Chemical group [H]C(*)=O 0.000 description 3
- 229910052863 mullite Inorganic materials 0.000 description 3
- 239000001272 nitrous oxide Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- IKHGUXGNUITLKF-UHFFFAOYSA-N Acetaldehyde Chemical compound CC=O IKHGUXGNUITLKF-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 2
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 description 2
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 description 2
- -1 S = SF 2 ) Chemical compound 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 150000001923 cyclic compounds Chemical class 0.000 description 2
- ZWWCURLKEXEFQT-UHFFFAOYSA-N dinitrogen pentaoxide Chemical compound [O-][N+](=O)O[N+]([O-])=O ZWWCURLKEXEFQT-UHFFFAOYSA-N 0.000 description 2
- WFPZPJSADLPSON-UHFFFAOYSA-N dinitrogen tetraoxide Chemical compound [O-][N+](=O)[N+]([O-])=O WFPZPJSADLPSON-UHFFFAOYSA-N 0.000 description 2
- DKDSFVCSLPKNPV-UHFFFAOYSA-N disulfur difluoride Chemical compound FSSF DKDSFVCSLPKNPV-UHFFFAOYSA-N 0.000 description 2
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- FDPIMTJIUBPUKL-UHFFFAOYSA-N pentan-3-one Chemical compound CCC(=O)CC FDPIMTJIUBPUKL-UHFFFAOYSA-N 0.000 description 2
- SUVIGLJNEAMWEG-UHFFFAOYSA-N propane-1-thiol Chemical compound CCCS SUVIGLJNEAMWEG-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- GVNVAWHJIKLAGL-UHFFFAOYSA-N 2-(cyclohexen-1-yl)cyclohexan-1-one Chemical compound O=C1CCCCC1C1=CCCCC1 GVNVAWHJIKLAGL-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 101150065749 Churc1 gene Proteins 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- GWCPMNRTISDVKH-UHFFFAOYSA-N F.F.F.F.F.F.S Chemical compound F.F.F.F.F.F.S GWCPMNRTISDVKH-UHFFFAOYSA-N 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XOBKSJJDNFUZPF-UHFFFAOYSA-N Methoxyethane Chemical compound CCOC XOBKSJJDNFUZPF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 102100038239 Protein Churchill Human genes 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- DKNWSYNQZKUICI-UHFFFAOYSA-N amantadine Chemical compound C1C(C2)CC3CC2CC1(N)C3 DKNWSYNQZKUICI-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- IRZWYOFWPMYFHG-UHFFFAOYSA-N butanal Chemical compound CCCC=O.CCCC=O IRZWYOFWPMYFHG-UHFFFAOYSA-N 0.000 description 1
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N butyric aldehyde Natural products CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- XNMQEEKYCVKGBD-UHFFFAOYSA-N dimethylacetylene Natural products CC#CC XNMQEEKYCVKGBD-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- MAHNFPMIPQKPPI-UHFFFAOYSA-N disulfur Chemical compound S=S MAHNFPMIPQKPPI-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- CCIVGXIOQKPBKL-UHFFFAOYSA-M ethanesulfonate Chemical compound CCS([O-])(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-M 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- SYJRVVFAAIUVDH-UHFFFAOYSA-N ipa isopropanol Chemical compound CC(C)O.CC(C)O SYJRVVFAAIUVDH-UHFFFAOYSA-N 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N sec-butylidene Natural products CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229920006268 silicone film Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- QTJXVIKNLHZIKL-UHFFFAOYSA-N sulfur difluoride Chemical compound FSF QTJXVIKNLHZIKL-UHFFFAOYSA-N 0.000 description 1
- QHMQWEPBXSHHLH-UHFFFAOYSA-N sulfur tetrafluoride Chemical compound FS(F)(F)F QHMQWEPBXSHHLH-UHFFFAOYSA-N 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/028—Molecular sieves
-
- 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
- B01D53/22—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 diffusion
- B01D53/228—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 diffusion characterised by specific membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/028—Molecular sieves
- B01D71/0281—Zeolites
-
- 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
- C01B32/50—Carbon dioxide
-
- 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
- B01D53/22—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 diffusion
- B01D2053/221—Devices
- B01D2053/222—Devices with plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2256/00—Main component in the product gas stream after treatment
- B01D2256/22—Carbon dioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/102—Nitrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/104—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/108—Hydrogen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/10—Single element gases other than halogens
- B01D2257/11—Noble gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/304—Hydrogen sulfide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/306—Organic sulfur compounds, e.g. mercaptans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/308—Carbonoxysulfide COS
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/406—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/408—Cyanides, e.g. hydrogen cyanide (HCH)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/50—Carbon oxides
- B01D2257/502—Carbon monoxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/60—Heavy metals or heavy metal compounds
- B01D2257/602—Mercury or mercury compounds
-
- 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
- B01D2257/702—Hydrocarbons
-
- 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
- B01D2257/702—Hydrocarbons
- B01D2257/7022—Aliphatic hydrocarbons
-
- 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
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Definitions
- the present invention relates to a gas separation method and a gas separation device.
- gas such as carbon dioxide (CO 2 ) has been separated from combustion exhaust gas from a thermal power plant or the like.
- CO 2 carbon dioxide
- JP-A-2003-159518 (Reference 1) and JP-A-2015-044162 (Reference 2) propose a technique for separating CO 2 from a mixed gas using a zeolite membrane.
- WO 2009/093666 (Document 3) proposes a CO 2 separation technique using a facilitated transport membrane.
- JP-T-2018-514385 proposes a technique for separating a feed mixture containing a plurality of types of hydrocarbons by using a porous membrane having a pore diameter of 5 nm to 250 nm.
- a porous membrane having a pore diameter of 5 nm to 250 nm.
- capillary condensation of the mixture components in the pores of the porous membrane is caused by maintaining the temperature of the porous membrane and the permeate below the temperature of the feed mixture.
- Document 4 describes that the temperature of the gas supplied to the plurality of carbon dioxide separation membranes is such that the downstream gas temperature is lower than the upstream gas temperature.
- the carbon dioxide permeability of the carbon dioxide separation membrane decreases as the temperature decreases, the temperature of the gas supplied to the separation membrane in each carbon dioxide separation membrane (that is, a single carbon dioxide separation membrane) is reduced. It is difficult to imagine cooling the separation membrane so that the temperature of the separation membrane becomes lower than that.
- Literature 5 discloses separation of hydrocarbons, but does not disclose separation of CO 2 .
- the pore diameter of the porous membrane of Reference 5 is relatively large at 5 nm or more, it is difficult to use the porous membrane for separating CO 2 .
- the present invention is directed to a gas separation method for separating carbon dioxide in a mixed gas, and in order to increase the concentration of carbon dioxide in gas permeated through a separation membrane, to improve the carbon dioxide selection performance in the separation membrane. It is intended to be.
- the gas separation method comprises: a) preparing a separation membrane composite in which a separation membrane having pores having an average pore diameter of 1 nm or less is formed on a porous support; b) supplying a mixed gas containing carbon dioxide and another gas to the separation membrane composite from the separation membrane side, and allowing carbon dioxide in the mixed gas to pass through the separation membrane and the support; Obtaining a permeated gas.
- the temperature of at least a part of the permeation-side surface from which the permeated gas is discharged is 10 ° C. or more lower than the temperature of the mixed gas before being supplied to the separation membrane composite, b) Step is performed. According to the gas separation method, the performance of selecting carbon dioxide in the separation membrane can be improved.
- the concentration of carbon dioxide in the permeated gas obtained in the step b) is higher than the concentration of carbon dioxide in the mixed gas.
- the temperature of the entire surface of the permeation side surface of the support is lower by 10 ° C. or more than the temperature of the mixed gas before being supplied to the separation membrane composite.
- the temperature of at least a part of the permeation-side surface of the support is lower by at least 15 ° C. than the temperature of the mixed gas before being supplied to the separation membrane composite.
- the pressure of the mixed gas before being supplied to the separation membrane composite in the step b) is 1 MPa or more.
- the separation membrane is an inorganic membrane. More preferably, the separation membrane is a zeolite membrane. More preferably, the maximum number of ring members of the zeolite constituting the separation membrane is 8 or less.
- the water content of the mixed gas before being supplied to the separation membrane composite in the step b) is 3000 ppm or less.
- the temperature of an impermeable gas discharged without passing through the separation membrane and the support is higher than the temperature of the permeation-side surface of the support. And the temperature is lower than the temperature of the mixed gas before being supplied to the separation membrane composite.
- said other gas is hydrogen, helium, nitrogen, oxygen, carbon monoxide, nitrogen oxides, ammonia, sulfur oxides, hydrogen sulfide, sulfur fluoride, mercury, arsine, hydrogen cyanide, carbonyl sulfide, C1-C8.
- a gas separation device for separating carbon dioxide in a mixed gas.
- a gas separation device includes a separation membrane composite in which a separation membrane having pores having an average pore diameter of 1 nm or less is formed on a porous support, and carbon dioxide and other gases. And a gas supply unit for supplying a mixed gas containing from the separation membrane side to the separation membrane composite.
- the temperature of at least a part of the permeation-side surface from which the gas permeated through the separation membrane is discharged out of the support is 10 ° C. or more lower than the temperature of the mixed gas before being supplied to the separation membrane composite.
- carbon dioxide in the mixed gas is separated from the mixed gas by passing through the separation membrane and the support. According to the gas separation device, the performance of selecting carbon dioxide in the separation membrane can be improved.
- FIG. 1 It is a figure showing a gas separation device. It is sectional drawing of a separation membrane composite. It is an expanded sectional view of a separation membrane composite. It is a figure which shows the flow of separation of a mixed gas.
- FIG. 1 is a diagram showing a schematic structure of a gas separation device 2 according to one embodiment of the present invention.
- the gas separation device 2 is a device that separates carbon dioxide from a mixed gas containing carbon dioxide (CO 2 ) and another gas.
- the mixed gas is, for example, combustion exhaust gas from a thermal power plant.
- the gas separation device 2 includes a separation membrane composite 1, a sealing unit 21, an outer cylinder 22, two seal members 23, a gas supply unit 26, a first gas recovery unit 27, and a second gas recovery unit. 28 and a cooling unit 29.
- the separation membrane composite 1, the sealing portion 21, and the seal member 23 are housed in the inner space of the outer cylinder 22.
- the gas supply unit 26, the first gas recovery unit 27, and the second gas recovery unit 28 are arranged outside the outer cylinder 22 and connected to the outer cylinder 22.
- the cooling unit 29 is disposed outside the outer cylinder 22 and covers the outer surface of the outer cylinder 22.
- FIG. 2 is a cross-sectional view of the separation membrane composite 1.
- FIG. 3 is a cross-sectional view showing a part of the separation membrane composite 1 in an enlarged manner.
- the separation membrane composite 1 includes a porous support 11 and a separation membrane 12 formed on the support 11.
- the separation film 12 is drawn by a thick line.
- the separation film 12 is indicated by parallel oblique lines. Further, in FIG. 3, the thickness of the separation film 12 is drawn to be larger than the actual thickness.
- the support 11 is a porous member that can transmit gas.
- the support 11 is a monolith type in which a plurality of through-holes 111 extending in the longitudinal direction (that is, the vertical direction in FIG. 2) are provided in a unitary columnar main body integrally formed. It is a support.
- the support 11 is substantially cylindrical.
- the cross section perpendicular to the longitudinal direction of each through hole 111 (that is, cell) is, for example, substantially circular. 1 and 2, the diameter of the through-hole 111 is larger than the actual size, and the number of the through-holes 111 is smaller than the actual size.
- the separation film 12 is formed on the inner surface of the through hole 111, and covers the inner surface of the through hole 111 over substantially the entire surface.
- the length of the support 11 (that is, the length in the vertical direction in FIG. 2) is, for example, 10 cm to 200 cm.
- the outer diameter of the support 11 is, for example, 0.5 cm to 30 cm.
- the distance between the central axes of the adjacent through holes 111 is, for example, 0.3 mm to 10 mm.
- the surface roughness (Ra) of the support 11 is, for example, 0.1 ⁇ m to 5.0 ⁇ m, and preferably 0.2 ⁇ m to 2.0 ⁇ m.
- the shape of the support 11 may be, for example, a honeycomb shape, a flat plate shape, a tubular shape, a cylindrical shape, a columnar shape, a polygonal column shape, or the like. When the shape of the support 11 is tubular or cylindrical, the thickness of the support 11 is, for example, 0.1 mm to 10 mm.
- the support 11 is formed of a ceramic sintered body.
- the ceramic sintered body selected as the material of the support 11 include alumina, silica, mullite, zirconia, titania, yttria, silicon nitride, silicon carbide, and the like.
- the support 11 includes at least one of alumina, silica, and mullite.
- the support 11 may include an inorganic binder.
- the inorganic binder at least one of titania, mullite, easily sinterable alumina, silica, glass frit, clay mineral, and easily sinterable cordierite can be used.
- the average pore diameter of the support 11 near the surface on which the separation membrane 12 is formed is preferably smaller than the average pore diameter of other portions of the support 11.
- the support 11 has a multilayer structure.
- the materials for the respective layers can be the same as those described above, and may be the same or different.
- the average pore diameter of the support 11 can be measured by a mercury porosimeter, a palm porometer, a nanoperm porometer, or the like.
- the average pore diameter of the support 11 is, for example, 0.01 ⁇ m to 70 ⁇ m, and preferably 0.05 ⁇ m to 25 ⁇ m.
- the average pore diameter of the support 11 near the surface on which the separation membrane 12 is formed is 0.01 ⁇ m to 1 ⁇ m, and preferably 0.05 ⁇ m to 0.5 ⁇ m.
- D5 is, for example, 0.01 ⁇ m to 50 ⁇ m
- D50 is, for example, 0.05 ⁇ m to 70 ⁇ m
- D95 is, for example, 0.1 ⁇ m to 2000 ⁇ m. is there.
- the porosity of the support 11 near the surface on which the separation film 12 is formed is, for example, 25% to 50%.
- the separation membrane 12 is a porous membrane having pores.
- the separation membrane 12 is a gas separation membrane that separates CO 2 from a mixed gas in which a plurality of types of gases are mixed by using a molecular sieve action.
- the mixed gas contains another gas which is harder to permeate through the separation membrane 12 than CO 2 .
- the mixed gas contains another gas whose permeation speed is smaller than the permeation speed of CO 2 of the separation membrane 12.
- the mixed gas is hydrogen (H 2 ), helium (He), nitrogen (N 2 ), oxygen (O 2 ), carbon monoxide (CO), nitrogen oxide, ammonia (NH 3 ) in addition to CO 2.
- Nitrogen oxide is a compound of nitrogen and oxygen.
- nitrogen oxide examples include nitric oxide (NO), nitrogen dioxide (NO 2 ), nitrous oxide (also referred to as nitrous oxide) (N 2 O), and nitrous oxide (N 2 O 3).
- NO nitric oxide
- NO 2 nitrogen dioxide
- N 2 O nitrous oxide
- N 2 O 3 nitrous oxide
- N 2 O 4 dinitrogen tetroxide
- N 2 O 5 a gas called dinitrogen pentoxide
- Knox the like of the NO X
- Sulfur oxide is a compound of sulfur and oxygen.
- the above-mentioned sulfur oxide is, for example, a gas called SO X (sox) such as sulfur dioxide (SO 2 ) and sulfur trioxide (SO 3 ).
- Sulfur fluoride is a compound of fluorine and sulfur.
- the C1 to C8 hydrocarbons are hydrocarbons having one or more and eight or less carbon atoms.
- the C3 to C8 hydrocarbon may be any of a linear compound, a side chain compound and a cyclic compound.
- C2-C8 hydrocarbons include saturated hydrocarbons (ie, those in which no double and triple bonds are present in the molecule), unsaturated hydrocarbons (ie, those in which the double and / or triple bonds are Which are present inside).
- the above-mentioned organic acid is a carboxylic acid or a sulfonic acid.
- the carboxylic acid is, for example, formic acid (CH 2 O 2 ), acetic acid (C 2 H 4 O 2 ), oxalic acid (C 2 H 2 O 4 ), acrylic acid (C 3 H 4 O 2 ) or benzoic acid (C 6 is a H 5 COOH) or the like.
- the sulfonic acid is, for example, ethanesulfonic acid (C 2 H 6 O 3 S).
- the organic acid may be a chain compound or a cyclic compound.
- Examples of the above-mentioned alcohol include methanol (CH 3 OH), ethanol (C 2 H 5 OH), isopropanol (2-propanol) (CH 3 CH (OH) CH 3 ), and ethylene glycol (CH 2 (OH) CH 2 ). (OH)) or butanol (C 4 H 9 OH).
- Mercaptans are organic compounds having hydrogenated sulfur (SH) at their terminals, and are also called thiols or thioalcohols.
- the above-mentioned mercaptans are, for example, methyl mercaptan (CH 3 SH), ethyl mercaptan (C 2 H 5 SH), 1-propanethiol (C 3 H 7 SH) and the like.
- the above-mentioned ester is, for example, formate or acetate.
- the above-mentioned ether is, for example, dimethyl ether ((CH 3 ) 2 O), methyl ethyl ether (C 2 H 5 OCH 3 ), diethyl ether ((C 2 H 5 ) 2 O), or the like.
- ketone is, for example, acetone ((CH 3 ) 2 CO), methyl ethyl ketone (C 2 H 5 COCH 3 ), diethyl ketone ((C 2 H 5 ) 2 CO), or the like.
- aldehyde is, for example, acetaldehyde (CH 3 CHO), propionaldehyde (C 2 H 5 CHO) or butanal (butyraldehyde) (C 3 H 7 CHO).
- the thickness of the separation membrane 12 is, for example, 0.05 ⁇ m to 30 ⁇ m, preferably 0.1 ⁇ m to 20 ⁇ m, and more preferably 0.5 ⁇ m to 10 ⁇ m.
- the surface roughness (Ra) of the separation membrane 12 is, for example, 5 ⁇ m or less, preferably 2 ⁇ m or less, more preferably 1 ⁇ m or less, and further preferably 0.5 ⁇ m or less.
- the average pore diameter of the separation membrane 12 is 1 nm or less. Thereby, the selectivity of CO 2 in the separation membrane 12 can be improved.
- the lower limit of the average pore diameter of the separation membrane 12 is not particularly limited as long as it can transmit CO 2 , but can be, for example, 0.2 nm or more.
- the average pore diameter of the separation membrane 12 is preferably 0.2 nm or more and 0.8 nm or less, more preferably 0.3 nm or more and 0.6 nm or less, and still more preferably 0.3 nm or more and 0 nm or less. 0.5 nm or less.
- the average pore diameter of the separation membrane 12 is reduced, the selection performance is improved.
- Increasing the average pore diameter of the separation membrane 12 increases the permeation speed.
- the average pore diameter of the separation membrane 12 is smaller than the average pore diameter on the surface of the support 11 on which the separation membrane 12 is provided.
- the separation membrane 12 is preferably an inorganic membrane, and is a zeolite membrane (that is, a membrane-shaped zeolite) in the present embodiment.
- the atom (T atom) located at the center of the oxygen tetrahedron (TO 4 ) constituting the zeolite is only Si, or zeolite composed of Si and Al, and T atom is composed of Al AlPO-type zeolite composed of P, SAPO-type zeolite whose T atom is composed of Si, Al and P, MAPSO-type zeolite whose T atom is composed of magnesium (Mg), Si, Al and P, zinc is T atom
- a ZnAPSO-type zeolite including (Zn), Si, Al, and P can be used. Some of the T atoms may be replaced by other elements.
- n the arithmetic average of the minor axis and the major axis of the n-membered ring pores is defined as the average pore diameter.
- An n-membered ring pore is a pore in which the number of oxygen atoms in the portion forming an annular structure by bonding an oxygen atom to a T atom is n.
- the arithmetic average of the minor axis and the major axis of all the n-membered ring pores is defined as the average pore diameter of the zeolite.
- the average pore diameter of the zeolite membrane is uniquely determined by the framework structure of the zeolite, and is described in “Database of the Zeolite Structures” [online] of the International Zeolite Society, Internet ⁇ URL: http: // www. iza-structure. org / databases >>.
- the type of zeolite constituting the separation membrane 12 is not particularly limited, and for example, AEI type, AEN type, AFN type, AFV type, AFX type, BEA type, CHA type, DDR type, ERI type, ETL type, FAU type ( (X-type, Y-type), GIS-type, LEV-type, LTA-type, MEL-type, MFI-type, MOR-type, PAU-type, RHO-type, SAT-type, SOD-type, and other zeolites. It is preferable that the maximum number of ring members of the zeolite is 8 or less (for example, 6 or 8) from the viewpoint of increasing the permeation rate of CO 2 and improving the selection performance described below.
- the separation membrane 12 is, for example, a DDR type zeolite.
- the separation membrane 12 is a zeolite membrane composed of a zeolite having a structure code “DDR” determined by the International Zeolite Society.
- DDR structure code
- the specific pore diameter of the zeolite constituting the separation membrane 12 is 0.36 nm ⁇ 0.44 nm, and the average pore diameter is 0.40 nm.
- the separation membrane 12 contains, for example, silicon (Si).
- the separation film 12 may include, for example, any two or more of Si, aluminum (Al), and phosphorus (P).
- the separation membrane 12 may contain an alkali metal.
- the alkali metal is, for example, sodium (Na) or potassium (K).
- the separation film 12 contains Si atoms, the Si / Al ratio in the separation film 12 is, for example, 1 or more and 100,000 or less.
- the Si / Al ratio is preferably 5 or more, more preferably 20 or more, even more preferably 100 or more, and the higher the better.
- the Si / Al ratio in the separation membrane 12 can be adjusted by adjusting the mixing ratio of the Si source and the Al source in the raw material solution described later.
- the CO 2 permeation amount (permeance) of the separation membrane 12 at ⁇ 50 ° C. to 300 ° C. is, for example, 50 nmol / m 2 s ⁇ Pa or more.
- the ratio of the permeation ratio of CO 2 to the amount of leakage of CH 4 (permeance ratio) of the separation membrane 12 at ⁇ 50 ° C. to 300 ° C. is, for example, 30 or more.
- the permeance and the permeence ratio are those in the case where the partial pressure difference of CO 2 between the supply side and the permeation side of the separation membrane 12 is 1.5 MPa.
- the sealing portions 21 are attached to both ends in the longitudinal direction of the support 11 (that is, the left-right direction in FIG. 1), and cover both end surfaces in the longitudinal direction of the support 11 and the outer surface 112 near the both end surfaces. This is the member to be sealed.
- the sealing portion 21 prevents inflow and outflow of gas from the both end surfaces of the support 11.
- the sealing portion 21 is a plate-like member formed of, for example, glass or resin. The material and shape of the sealing portion 21 may be appropriately changed. Since the sealing portion 21 is provided with a plurality of openings overlapping with the plurality of through holes 111 of the support 11, both ends in the longitudinal direction of each through hole 111 of the support 11 are covered with the sealing portion 21. It has not been. Therefore, gas can flow into and out of the through hole 111 from both ends.
- the outer cylinder 22 is a substantially cylindrical tubular member.
- the outer cylinder 22 is formed of, for example, stainless steel or carbon steel.
- the longitudinal direction of the outer cylinder 22 is substantially parallel to the longitudinal direction of the separation membrane composite 1.
- a gas supply port 221 is provided at one end of the outer cylinder 22 in the longitudinal direction (that is, a left end in FIG. 1), and a first gas discharge port 222 is provided at the other end.
- a second gas discharge port 223 is provided on a side surface of the outer cylinder 22.
- the gas supply unit 26 is connected to the gas supply port 221.
- the first gas recovery port 27 is connected to the first gas discharge port 222.
- the second gas recovery port 28 is connected to the second gas discharge port 223.
- the inner space of the outer cylinder 22 is a closed space isolated from the space around the outer cylinder 22.
- the two seal members 23 are disposed between the outer surface 112 of the separation membrane composite 1 (that is, the outer surface 112 of the support 11) and the inner surface of the outer cylinder 22 near both ends in the longitudinal direction of the separation membrane composite 1. Is arranged over the entire circumference.
- Each seal member 23 is a substantially annular member formed of a material through which gas cannot pass.
- the seal member 23 is, for example, an O-ring formed of a flexible resin.
- the seal member 23 is in close contact with the outer surface 112 of the separation membrane composite 1 and the inner surface of the outer cylinder 22 over the entire circumference. In the example shown in FIG.
- the seal member 23 is in close contact with the outer surface of the sealing portion 21 and indirectly in close contact with the outer surface 112 of the separation membrane composite 1 via the sealing portion 21.
- the gas supply unit 26 supplies a mixed gas containing CO 2 and another gas (for example, nitrogen (N 2 )) to the internal space of the outer cylinder 22 via the gas supply port 221.
- the gas supply unit 26 is, for example, a blower or a pump that pumps the mixed gas toward the outer cylinder 22.
- the blower or the pump includes a pressure adjusting unit that adjusts the pressure of the mixed gas supplied to the outer cylinder 22.
- the mixed gas supplied from the gas supply unit 26 to the inside of the outer cylinder 22 is introduced into each through hole 111 of the support 11 from the left end in the drawing of the separation membrane composite 1 as shown by an arrow 251. You.
- the CO 2 in the mixed gas passes through the separation membrane 12 provided on the inner surface of each through-hole 111 and the outer surface 112 of the support 11 through the support 11 and is derived from the outer surface 112 of the support 11 as indicated by an arrow 253. Then, the gas is recovered by the second gas recovery unit 28 via the second gas discharge port 223.
- the gas supply unit 26 supplies the above-mentioned mixed gas to the separation membrane composite 1 from the separation membrane 12 side, and allows CO 2 in the mixed gas to pass through the separation membrane 12 and the support 11 to support the mixed gas.
- the gas is separated from the mixed gas by discharging from a substantially cylindrical surface region (hereinafter, referred to as a “permeation surface 113”) of the outer surface 112 of the body 11 between the two seal members 23.
- the transmission-side surface 113 does not include a region of the outer surface 112 of the support 11 that is covered with the sealing portion 21.
- the second gas recovery unit 28 is, for example, a storage container that stores a permeated gas such as CO 2 that has passed through the separation membrane 12 and the support 11 and is derived from the outer cylinder 22, or a blower that transfers the permeated gas. It is a pump.
- a gas other than the above-described permeated gas passes through each through hole 111 of the support 11 from the left side to the right side in the drawing, and is indicated by an arrow 252.
- the gas is recovered by the first gas recovery unit 27 via the first gas discharge port 222.
- the first gas recovery unit 27 is, for example, a storage container that stores the impermeable gas derived from the outer cylinder 22, or a blower or a pump that transfers the impermeable gas.
- the cooling unit 29 cools the outer cylinder 22 by directly or indirectly contacting the outer surface of the outer cylinder 22.
- the cooling unit 29 is, for example, a substantially cylindrical cooling jacket provided around the outer cylinder 22.
- the outer cylinder 22 is cooled by the continuous flow of the coolant such as the cooling water inside the cooling unit 29.
- the refrigerant in the cooling unit 29 is hatched in parallel.
- the length of the cooling portion 29 in the above-described longitudinal direction is, for example, substantially the same as or longer than the distance in the longitudinal direction between the two seal members 23.
- both ends of the cooling unit 29 are located at substantially the same position in the longitudinal direction as the two seal members 23.
- the outer cylinder 22 is cooled by the cooling unit 29, so that the separation membrane composite 1 facing the inner surface of the outer cylinder 22 is also cooled.
- the cooling unit 29 the gas existing between the inner surface of the outer cylinder 22 and the outer surface 112 of the support 11 is cooled, and the outer surface that contacts the gas is cooled.
- the support 11 is cooled almost entirely from the 112 side. As a result, the separation membrane 12 in contact with the support 11 is also cooled almost entirely.
- Step S11 an example of the flow of the separation of the mixed gas by the gas separation device 2 will be described with reference to FIG.
- the separation membrane 12 is formed on the support 11 to prepare the separation membrane composite 1 (Step S11). More specifically, step S11 will be described.
- a seed crystal used for manufacturing the separation membrane 12 (that is, a zeolite membrane) is prepared.
- the seed crystal is obtained, for example, by generating a DDR type zeolite powder by hydrothermal synthesis and obtaining the zeolite powder.
- the zeolite powder may be used as it is as a seed crystal, or the seed crystal may be obtained by processing the powder by grinding or the like.
- the porous support 11 is immersed in the solution in which the seed crystal is dispersed, and the seed crystal is attached to the support 11.
- the seed crystal is attached to the support 11 by bringing the solution in which the seed crystal is dispersed into contact with a portion of the support 11 where the separation membrane 12 is to be formed. Thereby, a seed crystal-attached support is produced.
- the seed crystal may be attached to the support 11 by another method.
- the support 11 to which the seed crystal has been attached is immersed in the raw material solution.
- the raw material solution is prepared by dissolving and dispersing, for example, a Si source and a structure-directing agent (hereinafter, also referred to as “SDA”) in a solvent.
- the composition of the raw material solution is, for example, 1.0 SiO 2 : 0.015 SDA: 0.12 (CH 2 ) 2 (NH 2 ) 2 .
- Water or an alcohol such as ethanol may be used as a solvent for the raw material solution.
- the SDA contained in the raw material solution is, for example, an organic substance.
- 1-adamantanamine can be used as SDA.
- the DDR type zeolite is grown with the seed crystal as a nucleus by hydrothermal synthesis, whereby the separation membrane 12 which is a DDR type zeolite membrane is formed on the support 11.
- the temperature during hydrothermal synthesis is preferably from 120 to 200 ° C, for example, 160 ° C.
- the hydrothermal synthesis time is preferably 10 to 100 hours, for example, 30 hours.
- the support 11 and the separation membrane 12 are washed with pure water.
- the washed support 11 and separation membrane 12 are dried, for example, at 80 ° C.
- SDA in the separation membrane 12 is substantially completely burned off by subjecting the separation membrane 12 to heat treatment, and the micropores in the separation membrane 12 are penetrated. Thereby, the above-mentioned separation membrane composite 1 is obtained.
- step S12 the gas separation device 2 shown in FIG. 1 is assembled (step S12).
- the separation membrane composite 1 is installed in the outer cylinder 22.
- the cooling unit 29 cools the separation membrane composite 1 via the outer cylinder 22. Specifically, the portion between the two seal members 23 of the outer cylinder 22 is cooled by the cooling unit 29, and the inner surface of the outer cylinder 22 and the outer surface 112 of the support 11 are between the two seal members 23. The gas existing between the two is cooled. Further, the permeation-side surface 113 of the support 11 that is in contact with the gas is cooled, the support 11 is cooled almost entirely, and the separation membrane 12 is also cooled almost entirely (step). S13). The cooling of the separation membrane composite 1 by the cooling unit 29 is continued until the gas separation process by the gas separation device 2 ends, for example.
- the gas supply unit 26 supplies a mixed gas containing CO 2 and another gas to the internal space of the outer cylinder 22 (Step S14).
- the main components of the mixed gas are CO 2 and N 2 .
- the mixed gas may contain a gas other than CO 2 and N 2 . Since the adsorption of CO 2 into the pores of the separation membrane 12 is prevented from being inhibited by the moisture in the mixed gas and the permeation rate of CO 2 is reduced, the separation membrane in the inner space of the outer cylinder 22 can be suppressed.
- the water content of the mixed gas before being supplied to the composite 1 is preferably 3000 ppm or less, more preferably 1000 ppm or less, more preferably 500 ppm or less in volume ratio (that is, molar ratio). It is particularly preferably at most 100 ppm.
- a mixed gas having a water content of 3000 ppm or less by a dehydrator or the like can be used.
- the gas introduction pressure which is the pressure of the mixed gas supplied from the gas supply unit 26 to the internal space of the outer cylinder 22, is preferably 0.5 MPa or more, more preferably 1 MPa or more, and still more preferably 2 MPa or more. .
- the gas introduction pressure is, for example, 20 MPa or less, typically 10 MPa or less.
- the temperature of the mixed gas supplied from the gas supply unit 26 to the internal space of the outer cylinder 22 is, for example, ⁇ 50 ° C. to 300 ° C., and is approximately 10 ° C. to 150 ° C. in the present embodiment.
- the pressure and temperature of the mixed gas before being supplied to the separation membrane composite 1 are outside the above-described gas supply unit 26.
- the pressure and the temperature of the mixed gas supplied to the internal space of the cylinder 22 are substantially the same.
- the mixed gas supplied into the outer cylinder 22 is introduced into each through hole 111 of the separation membrane composite 1. Then, CO 2 in the mixed gas permeates through the separation membrane 12 and the support 11 of the separation membrane composite 1 and is led out from the permeation-side surface 113 of the support 11 to be separated from the mixed gas (step). S15).
- the support 11 is cooled by the cooling unit 29. For this reason, the temperature of the support 11 is changed to the mixed gas before being supplied to the separation membrane composite 1 (that is, the mixed gas that moves from the gas supply port 221 toward the separation membrane 12 and is immediately before being supplied to the separation membrane 12). Gas) temperature. Specifically, the temperature of at least a part of the transmission side surface 113 of the support 11 is lower than the temperature of the mixed gas by 10 ° C. or more. Since the temperature of the permeation side surface 113 of the support 11 and the temperature of the gas immediately after passing through the support 11 are almost the same, it is difficult to directly measure the temperature of the permeation side surface 113 of the support 11.
- the temperature of at least a part of the surface 113 is lower than the temperature of the mixed gas immediately before being supplied to the separation membrane 12 of the separation membrane composite 1 by 10 ° C. or more.
- the temperature of the entire surface of the permeation-side surface 113 of the support 11 is 10 ° C. or lower than the temperature of the mixed gas before being supplied to the separation membrane composite 1.
- the temperature of the permeation-side surface 113 does not necessarily need to be lower than the temperature of the mixed gas by 10 ° C. or more over the entire surface, and the temperature of at least a part of the permeation-side surface 113 is higher than the temperature of the mixed gas by 15 ° C. or more. Low is also preferred. More preferably, the temperature of the entire surface of the permeation-side surface 113 of the support 11 is lower than the temperature of the mixed gas before being supplied to the separation membrane composite 1 by 15 ° C. or more.
- the temperature of a part of the permeation side surface 113 of the support 11 is lower than the temperature of the mixed gas before being supplied to the separation membrane composite 1 by 10 ° C. or more. .
- CO 2 is efficiently adsorbed in the pores of the separation membrane 12, and the ratio of the permeation rate of CO 2 to the permeation rate of N 2 or the like in the separation membrane 12 is increased.
- the performance of selecting CO 2 in the separation membrane 12 is improved.
- the concentration of CO 2 in the transparent gas having passed through the separation membrane 12 and the support 11 is increased.
- the permeated gas that has passed through the separation membrane composite 1 is recovered by the second gas recovery unit 28.
- the pressure in the second gas recovery unit 28 (that is, the pressure on the permeation side) can be arbitrarily set, but is, for example, about 1 atm (0.101 MPa).
- the permeated gas recovered by the second gas recovery unit 28 may include a gas other than CO 2 .
- the impermeable gas (that is, the gas that has not passed through the separation membrane 12 and the support 11 in the mixed gas) passes through each through-hole 111 in the longitudinal direction and is discharged through the first gas discharge port 222. It is discharged from the cylinder 22.
- the impermeable gas passing through the through hole 111 of the separation membrane composite 1 is cooled by the separation membrane composite 1 at a lower temperature than the mixed gas.
- the temperature of the impermeable gas immediately after passing through the through-hole 111 moves toward the separation membrane 12 from the gas supply port 221 before being supplied to the separation membrane composite 1 (that is, the separation membrane 12 Lower than the temperature of the mixed gas immediately before being supplied to the
- the temperature of the impermeable gas immediately after passing through the through-hole 111 is preferably higher than the temperature of the permeation-side surface 113 of the support 11. It is preferable that the temperature of the impermeable gas immediately after passing through the through-hole 111 is higher than the temperature of the permeated gas immediately after passing through the separation membrane composite 1.
- the temperature of the impermeable gas immediately after passing through the through hole 111 is substantially the same as the temperature of the impermeable gas discharged from the first gas discharge port 222.
- the impermeable gas discharged from the outer cylinder 22 is collected by the first gas recovery unit 27.
- the pressure in the first gas recovery unit 27 is, for example, substantially the same as the pressure of the mixed gas supplied by the gas supply unit 26.
- the impermeable gas recovered by the first gas recovery unit 27 may include CO 2 that has not permeated the separation membrane composite 1.
- the separation membrane 12 is a DDR type zeolite membrane.
- the composition ratio (excluding water) of the mixed gas supplied from the gas supply unit 26 to the gas separation device 2 is 50 vol% for CO 2 and 50 vol% for N 2 .
- the water content of the mixed gas is 3000 ppm.
- the temperature of the mixed gas immediately before being supplied to the separation membrane 12 is 30 ° C.
- the pressure of the second gas recovery unit 28 (that is, the pressure on the permeation side) is 1 atm.
- the permeation flow rate of CO 2 and the selection performance in Table 1 were determined as follows. First, the flow rate and composition of the permeated gas permeating the separation membrane composite 1 were measured using a mass flow meter and gas chromatography, respectively. Subsequently, the permeation rates of CO 2 and N 2 for the separation membrane 12 were determined from the measured values of the flow rate and the composition of the permeated gas. Further, the permeation rates (permeance) of CO 2 and N 2 per unit area, unit time and unit pressure difference were determined, and the value obtained by dividing the permeation rate of CO 2 by the permeation rate of N 2 was calculated as CO 2 2 was selected. That is, the selection performance and the CO 2 in Table 1, a transmission speed ratio of the CO 2 for N 2, the larger the numerical values in Table 1, high CO 2 selection performance, the ratio of CO 2 in the permeate gas (Vol%) increases.
- Example 1 to 5 when the water content of the mixed gas was smaller than 3000 ppm, the CO 2 permeation rate and the selective performance were equivalent to the results shown in Table 1, or were lower than the results shown in Table 1. Increased. Further, in Examples 1 to 5, the temperature of the impermeable gas (that is, the temperature of the impermeable gas immediately after passing through the through-hole 111) is the same as the mixed gas before being supplied to the separation membrane composite 1 (that is, the separation gas). The temperature is lower than the temperature of the mixed gas immediately before being supplied to the membrane 12, and higher than the temperature of the permeation-side surface 113 of the support 11.
- the temperature difference ⁇ T is set to 10 ° C. or more as described above. By doing so, the performance of selecting CO 2 was improved. Further, as compared with the case where a Y-type zeolite membrane composed of a zeolite having a maximum number of ring members of 12 is used as the separation membrane 12, a DDR type zeolite membrane composed of a zeolite having a maximum number of ring rings of 8 or CHA. When the zeolite membrane was used, the selectivity of CO 2 was further improved.
- the temperature difference ⁇ T was set to 10 ° C. or more as described above, so that the CO 2 selection performance was improved.
- the gas separation method for separating CO 2 in a mixed gas is based on the separation membrane composite in which the separation membrane 12 having pores having an average pore diameter of 1 nm or less is formed on the porous support 11.
- Step of preparing the body 1 step S11
- a mixed gas containing CO 2 and another gas is supplied to the separation membrane composite 1 from the separation membrane 12 side
- CO 2 in the mixed gas is separated from the separation membrane 12 and Obtaining a permeated gas by permeating the support 11 (step S14).
- Step S14 is performed.
- the temperature of the separation membrane 12 can be lower than the temperature of the mixed gas, and CO 2 can be efficiently adsorbed in the pores of the separation membrane 12.
- the performance of selecting CO 2 in the separation membrane 12 can be improved.
- the amount of energy required for cooling can be reduced as compared with the case where the entire mixed gas is cooled and then supplied to the separation membrane 12.
- the concentration of carbon dioxide in the permeated gas obtained in step S14 is higher than the concentration of carbon dioxide in the mixed gas. Therefore, the separation of CO 2 in the separation membrane 12 can be promoted.
- step S14 the temperature of the entire surface of the permeation side surface 113 of the support 11 is lower than the temperature of the mixed gas before being supplied to the separation membrane composite 1 by 10 ° C. or more. Thereby, the performance of selecting CO 2 in the separation membrane 12 can be further improved.
- the temperature of at least a part of the permeation-side surface 113 of the support 11 is at least 15 ° C. higher than the temperature of the mixed gas before being supplied to the separation membrane composite 1. Low. Thereby, the performance of selecting CO 2 in the separation membrane 12 can be further improved.
- the pressure of the mixed gas before being supplied to the separation membrane composite 1 is 1 MPa or more. Thereby, the permeation flow rate of CO 2 in the separation membrane 12 can be increased.
- the separation membrane 12 is preferably an inorganic membrane.
- the inorganic membrane include a zeolite membrane, a silica membrane, and a carbon membrane.
- the separation membrane 12 is a zeolite membrane.
- the zeolite membrane having an intrinsic pore diameter as the separation membrane 12, the selectivity of CO 2 in the separation membrane 12 can be further improved.
- the zeolite membrane is at least a zeolite formed on the surface of the support 11 in the form of a film, and does not include one in which zeolite particles are simply dispersed in an organic film.
- the maximum number of ring members of the zeolite constituting the separation membrane 12 is 8 or less. Thereby, the selectivity of CO 2 in the separation membrane 12 can be further improved.
- the water content of the mixed gas before being supplied to the separation membrane composite 1 in step S14 is 3000 ppm or less.
- step S14 the whole mixed gas is not cooled and then supplied to the separation membrane 12, but the permeated gas is cooled by bringing the mixed gas into contact with the separation membrane 12. For this reason, according to the gas separation method, the amount of energy required for cooling can be reduced as compared with the case where the entire mixed gas is cooled and then supplied to the separation membrane 12.
- the temperature of the impermeable gas discharged without permeating the separation membrane 12 and the support 11 in the mixed gas in step S14 is higher than the temperature of the permeation-side surface 113 of the support 11. And the temperature is preferably lower than the temperature of the mixed gas before being supplied to the separation membrane composite 1. Thereby, cooling of the impermeable gas is suppressed, so that the amount of energy required for cooling can be further reduced.
- the gas separation method uses CO 2 and another gas (at least, hydrogen, helium, nitrogen, oxygen, carbon monoxide, nitrogen oxide, ammonia, sulfur oxide, hydrogen sulfide, sulfur fluoride, mercury, arsine). separates hydrogen cyanide, carbonyl sulfide, a C1 ⁇ C8 hydrocarbons, organic acids, alcohols, mercaptans, esters, ethers, from a mixed gas of a gas) containing one or more gases of ketones and aldehydes, the CO 2 Especially suitable for the case.
- another gas at least, hydrogen, helium, nitrogen, oxygen, carbon monoxide, nitrogen oxide, ammonia, sulfur oxide, hydrogen sulfide, sulfur fluoride, mercury, arsine.
- the above-described gas separation device 2 includes a separation membrane composite 1 in which a separation membrane 12 having pores having an average pore diameter of 1 nm or less is formed on a porous support 11, and a mixture containing CO 2 and other gases.
- a gas supply unit 26 that supplies gas to the separation membrane composite 1 from the separation membrane 12 side.
- the temperature of at least a part of the permeation-side surface 113 of the support 11 from which the gas permeating the separation membrane 12 is discharged is 10 ° C. lower than the temperature of the mixed gas before being supplied to the separation membrane composite 1.
- CO 2 in the mixed gas is separated from the mixed gas by passing through the separation membrane 12 and the support 11.
- the temperature of the separation membrane 12 can be lower than the temperature of the mixed gas, and CO 2 can be efficiently adsorbed in the pores of the separation membrane 12.
- the performance of selecting CO 2 in the separation membrane 12 can be improved.
- the amount of energy required for cooling can be reduced as compared with the case where the entire mixed gas is cooled and then supplied to the separation membrane 12.
- the gas other than CO 2 contained in the mixed gas may include a gas other than the gas exemplified in the above description, or may be constituted only by a gas other than the gas exemplified in the above description.
- the water content of the mixed gas before being supplied to the separation membrane 12 may be larger than 3000 ppm. Further, the pressure of the mixed gas may be less than 1 MPa as described above.
- the temperature of the impermeable gas immediately after passing through the through-hole 111 is substantially the same as the temperature of the mixed gas before being supplied to the separation membrane composite 1 (that is, the mixed gas immediately before being supplied to the separation membrane 12). You may. Further, the temperature of the impermeable gas may be substantially the same as the temperature of the permeation-side surface 113 of the support 11.
- the separation membrane 12 is a zeolite membrane
- the maximum number of ring members of the zeolite constituting the zeolite membrane may be smaller than 8, or larger than 8.
- the separation membrane 12 is not limited to a zeolite membrane, and may be an inorganic membrane formed of an inorganic substance other than zeolite. Further, the separation film 12 may be a film other than the inorganic film.
- the separation membrane composite 1 includes the separation membrane 12 formed on the support 11, the separation membrane composite 1 may further include a functional film and a protection film stacked on the separation membrane 12.
- a functional film or protective film may be an inorganic film such as a zeolite film, a silica film, or a carbon film, or may be an organic film such as a polyimide film or a silicone film.
- a substance that easily adsorbs CO 2 may be added to the functional film or the protective film stacked on the separation film 12.
- a substantially tubular or substantially cylindrical single-tube type separation membrane composite may be provided instead of the above-described monolithic separation membrane composite 1.
- the separation membrane is provided on the outer surface of a substantially tubular or substantially cylindrical support, and CO 2 permeated through the separation membrane and the support is led to a space radially inside the support. You may.
- the sealing portion may or may not be provided.
- the transmission-side surface is the inner surface of the substantially tubular or substantially cylindrical support.
- a cooling pipe or the like extending in the longitudinal direction may be provided as a cooling unit in a central portion of a space radially inside the support.
- the shape and structure of the cooling unit 29 may be variously changed.
- the cooling unit 29 may be, for example, a tube-shaped cooling jacket spirally wound on the outer surface of the outer cylinder 22.
- the refrigerant flowing into the cooling jacket may be a liquid or slurry other than the cooling water, or may be a cooled gas.
- a permeated gas that has passed through the separation membrane composite 1 may be used as the cooled gas.
- the cooling unit 29 may be a Peltier element provided on the outer surface of the outer cylinder 22.
- a low-temperature gas may be flowed as a sweep gas or the like so as to come into contact with the permeation side surface, or may be cooled by the Joule-Thomson effect of the permeated gas.
- the cooling unit 29 may be omitted.
- the selection performance of CO 2 in the separation membrane 12 can be improved as described above.
- the gas separation device and the gas separation method of the present invention can be used as a device and a method for separating CO 2 in combustion exhaust gas from a thermal power plant or the like, and furthermore, CO 2 in other various mixed gases. It can also be used for separation.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
Description
2 ガス分離装置
11 支持体
12 分離膜
26 ガス供給部
113 透過側表面
S11~S15 ステップ
Claims (12)
- 混合ガス中の二酸化炭素を分離するガス分離方法であって、
a)平均細孔径が1nm以下の細孔を有する分離膜が多孔質の支持体上に形成された分離膜複合体を準備する工程と、
b)二酸化炭素および他のガスを含む混合ガスを、前記分離膜側から前記分離膜複合体に供給し、前記混合ガス中の二酸化炭素を、前記分離膜および前記支持体を透過させることにより、透過ガスを得る工程と、
を備え、
前記支持体のうち、前記透過ガスが排出される透過側表面の少なくとも一部における温度が、前記分離膜複合体に供給される前の前記混合ガスの温度よりも10℃以上低い状態で、前記b)工程が行われる。 - 請求項1に記載のガス分離方法であって、
前記b)工程にて得られた前記透過ガス中の二酸化炭素濃度は、前記混合ガス中の二酸化炭素濃度よりも高い。 - 請求項1または2に記載のガス分離方法であって、
前記b)工程において、前記支持体の前記透過側表面の全面の温度が、前記分離膜複合体に供給される前の前記混合ガスの温度よりも10℃以上低い。 - 請求項1ないし3のいずれか1つに記載のガス分離方法であって、
前記b)工程において、前記支持体の前記透過側表面の少なくとも一部における温度は、前記分離膜複合体に供給される前の前記混合ガスの温度よりも15℃以上低い。 - 請求項1ないし4のいずれか1つに記載のガス分離方法であって、
前記b)工程において前記分離膜複合体に供給される前の前記混合ガスの圧力は1MPa以上である。 - 請求項1ないし5のいずれか1つに記載のガス分離方法であって、
前記分離膜は無機膜である。 - 請求項6に記載のガス分離方法であって、
前記分離膜はゼオライト膜である。 - 請求項7に記載のガス分離方法であって、
前記分離膜を構成するゼオライトの最大員環数は8以下である。 - 請求項1ないし8のいずれか1つに記載のガス分離方法であって、
前記b)工程において前記分離膜複合体に供給される前の前記混合ガスの水分含有量は3000ppm以下である。 - 請求項1ないし9のいずれか1つに記載のガス分離方法であって、
前記b)工程において、前記混合ガスのうち、前記分離膜および前記支持体を透過することなく排出される不透過ガスの温度は、前記支持体の前記透過側表面の温度よりも高く、かつ、前記分離膜複合体に供給される前の前記混合ガスの温度よりも低い。 - 請求項1ないし10のいずれか1つに記載のガス分離方法であって、
前記他のガスは、水素、ヘリウム、窒素、酸素、一酸化炭素、窒素酸化物、アンモニア、硫黄酸化物、硫化水素、フッ化硫黄、水銀、アルシン、シアン化水素、硫化カルボニル、C1~C8の炭化水素、有機酸、アルコール、メルカプタン類、エステル、エーテル、ケトンおよびアルデヒドのうち、1種類以上のガスを含む。 - 混合ガス中の二酸化炭素を分離するガス分離装置であって、
平均細孔径が1nm以下の細孔を有する分離膜が多孔質の支持体上に形成された分離膜複合体と、
二酸化炭素および他のガスを含む混合ガスを、前記分離膜側から前記分離膜複合体に供給するガス供給部と、
を備え、
前記支持体のうち、前記分離膜を透過したガスが排出される透過側表面の少なくとも一部における温度が、前記分離膜複合体に供給される前の前記混合ガスの温度よりも10℃以上低い状態で、前記混合ガス中の二酸化炭素が、前記分離膜および前記支持体を透過することにより、前記混合ガスから分離される。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980054252.3A CN112752603A (zh) | 2018-10-04 | 2019-09-17 | 气体分离方法及气体分离装置 |
JP2020550263A JP7257411B2 (ja) | 2018-10-04 | 2019-09-17 | ガス分離方法およびガス分離装置 |
DE112019004951.8T DE112019004951T5 (de) | 2018-10-04 | 2019-09-17 | Gastrennverfahren und Gasabscheider |
BR112021005265-8A BR112021005265A2 (pt) | 2018-10-04 | 2019-09-17 | método de separação de gás e separador de gás |
US17/203,987 US11857915B2 (en) | 2018-10-04 | 2021-03-17 | Gas separation method and gas separator |
JP2023000444A JP7398578B2 (ja) | 2018-10-04 | 2023-01-05 | ガス分離方法およびガス分離装置 |
JP2023204593A JP2024028837A (ja) | 2018-10-04 | 2023-12-04 | ガス分離方法およびガス分離装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018037186 | 2018-10-04 | ||
JPPCT/JP2018/037186 | 2018-10-04 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/203,987 Continuation US11857915B2 (en) | 2018-10-04 | 2021-03-17 | Gas separation method and gas separator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020071107A1 true WO2020071107A1 (ja) | 2020-04-09 |
Family
ID=70055867
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2019/036386 WO2020071107A1 (ja) | 2018-10-04 | 2019-09-17 | ガス分離方法およびガス分離装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US11857915B2 (ja) |
JP (3) | JP7257411B2 (ja) |
CN (1) | CN112752603A (ja) |
BR (1) | BR112021005265A2 (ja) |
DE (1) | DE112019004951T5 (ja) |
WO (1) | WO2020071107A1 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022130741A1 (ja) * | 2020-12-17 | 2022-06-23 | 日本碍子株式会社 | 分離膜複合体、分離装置、分離方法および分離膜複合体の製造方法 |
WO2023037886A1 (ja) * | 2021-09-10 | 2023-03-16 | 日本碍子株式会社 | 分離膜複合体の処理方法および分離膜複合体の処理装置 |
WO2023153172A1 (ja) * | 2022-02-08 | 2023-08-17 | 日本碍子株式会社 | 分離膜複合体、混合ガス分離装置および分離膜複合体の製造方法 |
WO2023153057A1 (ja) * | 2022-02-08 | 2023-08-17 | 日本碍子株式会社 | 混合ガス分離装置、混合ガス分離方法および膜反応装置 |
WO2023162351A1 (ja) * | 2022-02-28 | 2023-08-31 | 日本碍子株式会社 | 膜モジュール |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114307536B (zh) * | 2022-03-02 | 2022-06-07 | 山东神驰石化有限公司 | 一种正丁烷异构中正丁烷与异丁烷分离塔 |
CN114935610B (zh) * | 2022-04-05 | 2023-12-22 | 陕西长青能源化工有限公司 | 一种用气相色谱同时测定酸性气中含硫含醇组分含量的方法及其系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02135117A (ja) * | 1988-11-16 | 1990-05-24 | Sumitomo Heavy Ind Ltd | 気体分離モジュールおよび多段式気体分離装置 |
JPH04225777A (ja) * | 1990-12-26 | 1992-08-14 | Mitsubishi Heavy Ind Ltd | 炭酸ガスの回収方法 |
JP2000087811A (ja) * | 1998-09-11 | 2000-03-28 | Kubota Corp | エンジンの排気再循環装置 |
JP2012236123A (ja) * | 2011-05-10 | 2012-12-06 | Hitachi Zosen Corp | ゼオライト膜による排ガス中の二酸化炭素分離回収システム |
WO2013061474A1 (ja) * | 2011-10-28 | 2013-05-02 | 日揮株式会社 | 流体分離装置および混合流体の選択分離方法 |
JP2017154120A (ja) * | 2016-03-04 | 2017-09-07 | 東京瓦斯株式会社 | 二酸化炭素分離システム及び燃料電池システム |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3782120T2 (de) * | 1986-08-15 | 1993-02-11 | Permea Inc | Asymmetrische gastrennungsmembranen, deren haut einen dichtegradienten aufweisen. |
US5647227A (en) * | 1996-02-29 | 1997-07-15 | Membrane Technology And Research, Inc. | Membrane-augmented cryogenic methane/nitrogen separation |
DE60231134D1 (de) | 2001-09-17 | 2009-03-26 | Ngk Insulators Ltd | Verfahren zur herstellung von zeolith-folie deca-dodecasil 3r, zeolith-folie deca-dodecasil 3r und verbund-zeolith-folie deca-dodecasil 3r sowie herstellungsverfahren dafür |
JP4204270B2 (ja) | 2001-09-17 | 2009-01-07 | 日本碍子株式会社 | Ddr型ゼオライト膜の製造方法 |
EP2239048B1 (en) | 2008-01-24 | 2014-12-24 | Renaissance Energy Research Corporation | Co2-facilitated transport membrane and manufacturing method for same |
WO2011046016A1 (ja) * | 2009-10-16 | 2011-04-21 | 日本碍子株式会社 | Ddr型ゼオライトの製造方法 |
US9863314B2 (en) | 2011-04-28 | 2018-01-09 | Hitachi Zosen Corporation | Carbon dioxide membrane separation system in coal gasification process, and integrated coal gasification combined cycle power generation facility using same |
US9381472B2 (en) * | 2012-05-30 | 2016-07-05 | Toray Industries, Inc. | Carbon-dioxide-separating membrane |
JP6213062B2 (ja) | 2013-08-28 | 2017-10-18 | 三菱ケミカル株式会社 | 気体の分離または濃縮方法、および高酸素濃度混合気体の製造方法 |
CN106573204B (zh) * | 2014-07-10 | 2019-12-06 | 日立造船株式会社 | 沸石膜、其制备方法及使用了该沸石膜的分离方法 |
WO2016027713A1 (ja) * | 2014-08-21 | 2016-02-25 | 日本碍子株式会社 | 分離装置及び再生方法 |
JP6390469B2 (ja) | 2015-03-04 | 2018-09-19 | トヨタ自動車株式会社 | 熱交換器 |
JP2016175063A (ja) | 2015-03-20 | 2016-10-06 | 日本碍子株式会社 | 膜の再生方法 |
RU2596257C1 (ru) | 2015-04-29 | 2016-09-10 | Открытое акционерное общество "Нефтяная компания "Роснефть" | Способ фракционирования смесей низкомолекулярных углеводородов с использованием капиллярной конденсации на микропористых мембранах |
JP6715575B2 (ja) * | 2015-06-18 | 2020-07-01 | 住友化学株式会社 | 二酸化炭素分離方法及び二酸化炭素分離装置 |
JP2017051932A (ja) | 2015-09-11 | 2017-03-16 | 東洋ゴム工業株式会社 | ガス分離膜形成方法 |
WO2017056134A1 (ja) * | 2015-10-01 | 2017-04-06 | 日揮株式会社 | 非炭化水素ガス分離装置及び非炭化水素ガス分離方法 |
WO2019159782A1 (ja) | 2018-02-15 | 2019-08-22 | 日本碍子株式会社 | ガス分離装置、ガス分離方法およびガス分離膜 |
-
2019
- 2019-09-17 DE DE112019004951.8T patent/DE112019004951T5/de active Pending
- 2019-09-17 BR BR112021005265-8A patent/BR112021005265A2/pt unknown
- 2019-09-17 WO PCT/JP2019/036386 patent/WO2020071107A1/ja active Application Filing
- 2019-09-17 CN CN201980054252.3A patent/CN112752603A/zh active Pending
- 2019-09-17 JP JP2020550263A patent/JP7257411B2/ja active Active
-
2021
- 2021-03-17 US US17/203,987 patent/US11857915B2/en active Active
-
2023
- 2023-01-05 JP JP2023000444A patent/JP7398578B2/ja active Active
- 2023-12-04 JP JP2023204593A patent/JP2024028837A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02135117A (ja) * | 1988-11-16 | 1990-05-24 | Sumitomo Heavy Ind Ltd | 気体分離モジュールおよび多段式気体分離装置 |
JPH04225777A (ja) * | 1990-12-26 | 1992-08-14 | Mitsubishi Heavy Ind Ltd | 炭酸ガスの回収方法 |
JP2000087811A (ja) * | 1998-09-11 | 2000-03-28 | Kubota Corp | エンジンの排気再循環装置 |
JP2012236123A (ja) * | 2011-05-10 | 2012-12-06 | Hitachi Zosen Corp | ゼオライト膜による排ガス中の二酸化炭素分離回収システム |
WO2013061474A1 (ja) * | 2011-10-28 | 2013-05-02 | 日揮株式会社 | 流体分離装置および混合流体の選択分離方法 |
JP2017154120A (ja) * | 2016-03-04 | 2017-09-07 | 東京瓦斯株式会社 | 二酸化炭素分離システム及び燃料電池システム |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022130741A1 (ja) * | 2020-12-17 | 2022-06-23 | 日本碍子株式会社 | 分離膜複合体、分離装置、分離方法および分離膜複合体の製造方法 |
WO2023037886A1 (ja) * | 2021-09-10 | 2023-03-16 | 日本碍子株式会社 | 分離膜複合体の処理方法および分離膜複合体の処理装置 |
WO2023153172A1 (ja) * | 2022-02-08 | 2023-08-17 | 日本碍子株式会社 | 分離膜複合体、混合ガス分離装置および分離膜複合体の製造方法 |
WO2023153057A1 (ja) * | 2022-02-08 | 2023-08-17 | 日本碍子株式会社 | 混合ガス分離装置、混合ガス分離方法および膜反応装置 |
WO2023162351A1 (ja) * | 2022-02-28 | 2023-08-31 | 日本碍子株式会社 | 膜モジュール |
Also Published As
Publication number | Publication date |
---|---|
JP2024028837A (ja) | 2024-03-05 |
JP7398578B2 (ja) | 2023-12-14 |
CN112752603A (zh) | 2021-05-04 |
US11857915B2 (en) | 2024-01-02 |
DE112019004951T5 (de) | 2021-06-17 |
JP7257411B2 (ja) | 2023-04-13 |
BR112021005265A2 (pt) | 2021-06-15 |
JPWO2020071107A1 (ja) | 2021-09-02 |
US20210197118A1 (en) | 2021-07-01 |
JP2023026609A (ja) | 2023-02-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020071107A1 (ja) | ガス分離方法およびガス分離装置 | |
JP7220087B2 (ja) | ゼオライト膜複合体、ゼオライト膜複合体の製造方法、および、分離方法 | |
JP7174146B2 (ja) | ゼオライト膜複合体、ゼオライト膜複合体の製造方法、ゼオライト膜複合体の処理方法、および、分離方法 | |
JP2019150823A (ja) | ゼオライト膜複合体、および、ゼオライト膜複合体の製造方法 | |
US20230018523A1 (en) | Gas separation method and zeolite membrane | |
JP2021016858A (ja) | 分離装置、および、分離装置の運転方法 | |
US20210322932A1 (en) | Zeolite membrane composite, method of producing zeolite membrane composite, and separation method | |
WO2022018910A1 (ja) | 分離膜複合体および分離方法 | |
WO2019187640A1 (ja) | ゼオライト膜複合体、ゼオライト膜複合体の製造方法、および、分離方法 | |
JP7374320B2 (ja) | 分離膜複合体、分離膜複合体の製造方法および分離方法 | |
WO2022255055A1 (ja) | 混合ガス分離方法および混合ガス分離装置 | |
JP7444990B2 (ja) | 分離システム | |
WO2023085372A1 (ja) | ゼオライト膜複合体および膜反応装置 | |
WO2021186974A1 (ja) | ガス分離方法およびゼオライト膜 | |
US11577205B2 (en) | Separation apparatus and method of operating separation apparatus | |
WO2023037886A1 (ja) | 分離膜複合体の処理方法および分離膜複合体の処理装置 | |
WO2023153172A1 (ja) | 分離膜複合体、混合ガス分離装置および分離膜複合体の製造方法 | |
WO2023153057A1 (ja) | 混合ガス分離装置、混合ガス分離方法および膜反応装置 | |
WO2022163690A1 (ja) | 膜加熱処理方法 | |
WO2023162879A1 (ja) | セラミックス基材、セラミックス支持体および分離膜複合体 | |
WO2022208980A1 (ja) | 分離膜モジュールの評価方法 | |
WO2020066298A1 (ja) | 支持体、ゼオライト膜複合体、ゼオライト膜複合体の製造方法、および、分離方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19868638 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2020550263 Country of ref document: JP Kind code of ref document: A |
|
REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112021005265 Country of ref document: BR |
|
ENP | Entry into the national phase |
Ref document number: 112021005265 Country of ref document: BR Kind code of ref document: A2 Effective date: 20210319 |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 19868638 Country of ref document: EP Kind code of ref document: A1 |