JP2020078803A - 分離膜構造体 - Google Patents
分離膜構造体 Download PDFInfo
- Publication number
- JP2020078803A JP2020078803A JP2020031495A JP2020031495A JP2020078803A JP 2020078803 A JP2020078803 A JP 2020078803A JP 2020031495 A JP2020031495 A JP 2020031495A JP 2020031495 A JP2020031495 A JP 2020031495A JP 2020078803 A JP2020078803 A JP 2020078803A
- Authority
- JP
- Japan
- Prior art keywords
- separation membrane
- nitrogen
- membrane
- porous alumina
- pore diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012528 membrane Substances 0.000 title claims abstract description 183
- 238000000926 separation method Methods 0.000 title claims abstract description 136
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 136
- 239000011148 porous material Substances 0.000 claims abstract description 85
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 68
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 claims abstract description 47
- 239000002184 metal Substances 0.000 claims abstract description 47
- 150000001768 cations Chemical class 0.000 claims abstract description 45
- 239000007789 gas Substances 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 229910052788 barium Inorganic materials 0.000 claims description 3
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052744 lithium Inorganic materials 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 239000012466 permeate Substances 0.000 claims description 2
- 229910052712 strontium Inorganic materials 0.000 claims description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 81
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 73
- 229910021536 Zeolite Inorganic materials 0.000 description 66
- 239000010457 zeolite Substances 0.000 description 66
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 65
- 239000000758 substrate Substances 0.000 description 55
- 239000002585 base Substances 0.000 description 40
- 239000000377 silicon dioxide Substances 0.000 description 38
- 239000011521 glass Substances 0.000 description 29
- 239000000463 material Substances 0.000 description 29
- 239000003822 epoxy resin Substances 0.000 description 27
- 229920000647 polyepoxide Polymers 0.000 description 27
- 150000004696 coordination complex Chemical class 0.000 description 26
- 238000001179 sorption measurement Methods 0.000 description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 24
- 238000000034 method Methods 0.000 description 22
- 239000001301 oxygen Substances 0.000 description 22
- 229910052760 oxygen Inorganic materials 0.000 description 22
- 239000000243 solution Substances 0.000 description 19
- 239000002344 surface layer Substances 0.000 description 19
- 239000010410 layer Substances 0.000 description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 12
- 230000015572 biosynthetic process Effects 0.000 description 11
- 239000002994 raw material Substances 0.000 description 11
- 238000005342 ion exchange Methods 0.000 description 10
- 239000002243 precursor Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- 239000007788 liquid Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000010304 firing Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- 238000005470 impregnation Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 125000004429 atom Chemical group 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000001027 hydrothermal synthesis Methods 0.000 description 4
- 239000011572 manganese Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- DKNWSYNQZKUICI-UHFFFAOYSA-N amantadine Chemical compound C1C(C2)CC3CC2CC1(N)C3 DKNWSYNQZKUICI-UHFFFAOYSA-N 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 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 2
- JGOICJFFICGNEJ-UHFFFAOYSA-M disodium;3-[dihydroxy(oxido)silyl]propanoate Chemical compound [Na+].[Na+].O[Si](O)([O-])CCC([O-])=O JGOICJFFICGNEJ-UHFFFAOYSA-M 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 229910052863 mullite Inorganic materials 0.000 description 2
- 229910017604 nitric acid Inorganic materials 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 125000004430 oxygen atom Chemical group O* 0.000 description 2
- 125000004437 phosphorous atom Chemical group 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000001612 separation test Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- DHEQXMRUPNDRPG-UHFFFAOYSA-N strontium nitrate Chemical compound [Sr+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O DHEQXMRUPNDRPG-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QFMZQPDHXULLKC-UHFFFAOYSA-N 1,2-bis(diphenylphosphino)ethane Chemical compound C=1C=CC=CC=1P(C=1C=CC=CC=1)CCP(C=1C=CC=CC=1)C1=CC=CC=C1 QFMZQPDHXULLKC-UHFFFAOYSA-N 0.000 description 1
- 241000408939 Atalopedes campestris Species 0.000 description 1
- 238000012935 Averaging Methods 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 101100065719 Drosophila melanogaster Ets98B gene Proteins 0.000 description 1
- 229910021577 Iron(II) chloride Inorganic materials 0.000 description 1
- AHVYPIQETPWLSZ-UHFFFAOYSA-N N-methyl-pyrrolidine Natural products CN1CC=CC1 AHVYPIQETPWLSZ-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- DEIHRWXJCZMTHF-UHFFFAOYSA-N [Mn].[CH]1C=CC=C1 Chemical compound [Mn].[CH]1C=CC=C1 DEIHRWXJCZMTHF-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical group [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- PWHCIQQGOQTFAE-UHFFFAOYSA-L barium chloride dihydrate Chemical compound O.O.[Cl-].[Cl-].[Ba+2] PWHCIQQGOQTFAE-UHFFFAOYSA-L 0.000 description 1
- 229910001422 barium ion Inorganic materials 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002734 clay mineral Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 238000007865 diluting 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
- 210000003743 erythrocyte Anatomy 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229960002089 ferrous chloride Drugs 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- BFXIKLCIZHOAAZ-UHFFFAOYSA-N methyltrimethoxysilane Chemical compound CO[Si](C)(OC)OC BFXIKLCIZHOAAZ-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- SCPYDCQAZCOKTP-UHFFFAOYSA-N silanol Chemical compound [SiH3]O SCPYDCQAZCOKTP-UHFFFAOYSA-N 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
- 229910001388 sodium aluminate 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
- 229910001427 strontium ion Inorganic materials 0.000 description 1
- OSBSFAARYOCBHB-UHFFFAOYSA-N tetrapropylammonium Chemical compound CCC[N+](CCC)(CCC)CCC OSBSFAARYOCBHB-UHFFFAOYSA-N 0.000 description 1
- BGQMOFGZRJUORO-UHFFFAOYSA-M tetrapropylammonium bromide Chemical compound [Br-].CCC[N+](CCC)(CCC)CCC BGQMOFGZRJUORO-UHFFFAOYSA-M 0.000 description 1
- LPSKDVINWQNWFE-UHFFFAOYSA-M tetrapropylazanium;hydroxide Chemical compound [OH-].CCC[N+](CCC)(CCC)CCC LPSKDVINWQNWFE-UHFFFAOYSA-M 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052719 titanium Inorganic materials 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
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- 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
- B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
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Abstract
Description
図1は、分離膜構造体10の構成を示す断面図である。分離膜構造体10は、少なくともメタン分子(以下、「メタン」と略称する。)と窒素分子(以下、「窒素」と略称する。)を含有する混合ガス中の窒素を選択的に透過させる。分離膜構造体10は、多孔質支持体20及び分離膜30を備える。
分離膜構造体10の製造方法について説明する。
まず、押出成形法、プレス成形法あるいは鋳込み成形法などを用いて、基体21の原料を所望の形状に成形することによって基体21の成形体を形成する。次に、基体21の成形体を焼成(例えば、900℃〜1450℃)して基体21を形成する。
多孔質支持体20の表面に分離膜30を形成する。分離膜30は、膜種に応じた従来既知の手法で形成することができる。以下、分離膜30の形成手法の一例としてゼオライト膜、シリカ膜及び炭素膜それぞれの形成方法を順次説明する。
まず、種結晶としてのゼオライトを予め表層23の表面に塗布した後、シリカ源、アルミナ源、有機テンプレート、アルカリ源及び水に窒素吸着性金属カチオン及び窒素吸着性金属錯体の少なくとも一方が添加された原料溶液の入った耐圧容器に多孔質支持体20を浸漬する。この際、窒素吸着性金属カチオンや窒素吸着性金属錯体の添加量を調整することによって、分離膜30の窒素吸着性を制御することができる。
まず、テトラエトシキシランなどのアルコキシシラン、メチルトリメトキシシランなどの有機アルコキシシラン、又はカルボキシエチルシラントリオールナトリウム塩などの有機ヒドロキシシランを硝酸や塩酸等の触媒の存在下で加水分解や縮合させてゾル液とし、窒素吸着性金属カチオン及び窒素吸着性金属錯体の少なくとも一方が添加されたエタノール又は水で希釈することによって前駆体溶液(シリカゾル液)を調製する。この際、窒素吸着性金属カチオンの添加量を調整することによって、分離膜30の窒素吸着性を制御することができる。
まず、エポキシ樹脂やポリイミド樹脂などの熱硬化性樹脂、ポリエチレンなどの熱可塑性樹脂、セルロース系樹脂、又はこれらの前駆体物質を、窒素吸着性金属カチオン及び窒素吸着性金属錯体の少なくとも一方が添加されたメタノール、アセトン、テトラヒドロフラン、NMP、トルエン等の有機溶媒や水に溶解することによって前駆体溶液を調製する。この際、窒素吸着性金属カチオンの添加量を調整することによって、分離膜30の窒素吸着性を制御することができる。
本実施形態に係る分離膜構造体10は、多孔質支持体20と、多孔質支持体20上に形成された分離膜30とを備える。分離膜30は、0.32nm以上かつ0.44nm以下の平均細孔径を有する。分離膜30は、メタンに比べて窒素を吸着しやすい金属カチオン及び金属錯体の少なくとも一方を含有する。
以上、本発明の一実施形態について説明したが、本発明は上記実施形態に限定されるものではなく、発明の要旨を逸脱しない範囲で種々の変更が可能である。
以下のようにして、サンプルNo.1に係る分離膜構造体を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
まず、サンプルNo.1と同じ多孔質アルミナ基材を作製した。
サンプルNo.1〜13に係る分離膜構造体を用いてガス分離試験を行った。
20 多孔質支持体
21 基体
22 中間層
23 表層
30 分離膜
Claims (2)
- 少なくともメタンと窒素を含有する混合ガス中の窒素を選択的に透過させる分離膜構造体であって、
多孔質支持体と、
前記多孔質支持体上に形成され、0.32nm以上かつ0.44nm以下の平均細孔径を有する分離膜と、
を備え、
前記分離膜は、金属カチオンを含有し、
前記分離膜の細孔径の標準偏差を前記平均細孔径で割った変動係数は、0.4以下である、
分離膜構造体。 - 前記分離膜に添加される前記金属カチオンは、Sr、Mg、Li、Ba、Ca、Cu、Feから選択される少なくとも1種である、
請求項1に記載の分離膜構造体。
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US10814288B2 (en) * | 2016-08-04 | 2020-10-27 | Exxonmobil Research And Engineering Company | Separation of gases using reactive adsorbents and membranes |
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WO2018180563A1 (ja) * | 2017-03-31 | 2018-10-04 | 日本碍子株式会社 | Afx構造のゼオライト膜、膜構造体、及び膜構造体の製造方法 |
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