JP6944543B2 - サワーガス分離用ポリマーブレンド膜 - Google Patents
サワーガス分離用ポリマーブレンド膜 Download PDFInfo
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- JP6944543B2 JP6944543B2 JP2019564505A JP2019564505A JP6944543B2 JP 6944543 B2 JP6944543 B2 JP 6944543B2 JP 2019564505 A JP2019564505 A JP 2019564505A JP 2019564505 A JP2019564505 A JP 2019564505A JP 6944543 B2 JP6944543 B2 JP 6944543B2
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- 239000012528 membrane Substances 0.000 title claims description 130
- 238000000926 separation method Methods 0.000 title claims description 39
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title description 7
- 229920002959 polymer blend Polymers 0.000 title description 3
- 229920002614 Polyether block amide Polymers 0.000 claims description 118
- 239000007789 gas Substances 0.000 claims description 65
- 229920000642 polymer Polymers 0.000 claims description 48
- 238000000034 method Methods 0.000 claims description 40
- 229920001223 polyethylene glycol Polymers 0.000 claims description 37
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 33
- 230000035699 permeability Effects 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 27
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 24
- 229920001577 copolymer Polymers 0.000 claims description 19
- 239000002904 solvent Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 8
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 6
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 claims description 4
- 239000012965 benzophenone Substances 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 description 14
- 238000004132 cross linking Methods 0.000 description 11
- 229920002301 cellulose acetate Polymers 0.000 description 8
- 239000003345 natural gas Substances 0.000 description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 description 7
- 230000004580 weight loss Effects 0.000 description 7
- 238000005033 Fourier transform infrared spectroscopy Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 229920005597 polymer membrane Polymers 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 239000004642 Polyimide Substances 0.000 description 5
- 125000004386 diacrylate group Chemical group 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229920001721 polyimide Polymers 0.000 description 5
- -1 1-hydroxycyclohexyl (phenyl) Chemical group 0.000 description 4
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000000113 differential scanning calorimetry Methods 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229920002492 poly(sulfone) Polymers 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000000935 solvent evaporation Methods 0.000 description 2
- FJSKXQVRKZTKSI-UHFFFAOYSA-N 2,3-dimethylfuran Chemical compound CC=1C=COC=1C FJSKXQVRKZTKSI-UHFFFAOYSA-N 0.000 description 1
- IZUKHRKHJRPLBX-UHFFFAOYSA-N 2-(1-hydroxycyclohexyl)benzaldehyde Chemical compound C=1C=CC=C(C=O)C=1C1(O)CCCCC1 IZUKHRKHJRPLBX-UHFFFAOYSA-N 0.000 description 1
- 108010065780 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine pyrophosphokinase Proteins 0.000 description 1
- 238000004483 ATR-FTIR spectroscopy Methods 0.000 description 1
- 101100460146 Arabidopsis thaliana NEET gene Proteins 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003542 behavioural effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000009878 intermolecular interaction Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000002121 nanofiber Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000001757 thermogravimetry curve Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
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- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0011—Casting solutions therefor
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- B01D67/0013—Casting processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D67/0002—Organic membrane manufacture
- B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
- B01D67/0016—Coagulation
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/009—After-treatment of organic or inorganic membranes with wave-energy, particle-radiation or plasma
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D71/06—Organic material
- B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
- B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
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- B01D2256/24—Hydrocarbons
- B01D2256/245—Methane
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Plasma & Fusion (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Graft Or Block Polymers (AREA)
Description
発明の実施例1
ポリ(アミド−b−エーテル)Pebax/XLPEGDA膜の調製
Pebax1657を60℃の真空オーブンで24時間乾燥させた。0.8gの乾燥Pebax1657の試料を20mL(4重量%/v)エタノール/脱イオン(DI)水(70/30v/v)の混合物中に溶解した。反応混合物を85℃の逆流下で少なくとも6時間激しく撹拌して、均一な溶液を得た。PebaxポリマーをArkema Inc.から得た。Pebaxが完全に溶解した後、Pebax1657の重量に基づいて、1重量パーセント(重量%)〜80重量%の範囲(好ましくは5重量%〜80重量%の範囲)の、表1に記載のポリエチレングリコールジアクリレート(PEGDA)の異なる量(750g/mol)を、Pebax溶液に添加し、60℃でさらに2時間機械的に攪拌して、ポリマー溶液が完全に均一になるようにした。PEGDAに基づく、HCPK(1−ヒドロキシシクロヘキシル(フェニル)メタノンビス[2−(1−ヒドロキシシクロヘキシル)フェニル]メタノン光開始剤)のPEGDA(特定の量については表1を参照)の重量に基づいて2重量%を溶液に添加し、60℃で2時間機械的に攪拌した。
比較膜1
ポリ(アミド−b−エーテル)(Pebax)膜の調製
Pebax1657を60℃の真空オーブンで24時間乾燥させた。0.8gの乾燥Pebax1657の試料を20mLのエタノール/脱イオン(DI)水(70/30v/v)の混合物中に溶解した。反応混合物を85℃の逆流下で少なくとも6時間激しく撹拌して、均一な溶液を得た。得られたPebax溶液を50〜60℃に置いて、気泡を除去し、次いで、予熱した(50〜60℃)ポリテトラフルオロエチレン(PTFE)平底ペトリ皿に注いで、高密度フィルムを調製した。高密度フィルムを、溶媒蒸発用のカバーを付けて室温で一晩乾燥させ、次いで、60℃の真空オーブンで48時間乾燥させた。その後、透過試験のために膜をペトリ皿から簡単に剥がした。
比較膜2
ブレンドしたポリ(アミド−β−エーテル)膜の調製(Pebax/PEGDA)
Pebax1657を60℃の真空オーブンで24時間乾燥させた。0.8gの乾燥Pebax1657の試料を20mLのエタノール/脱イオン(DI)水(70/30v/v)の混合物中に溶解した。反応混合物を85℃の逆流下で少なくとも6時間激しく撹拌して、均一な溶液を得た。
研究
Pebax/XLPEGDAブレンド膜の合成の成功およびPEGDAの架橋反応の完了を、フーリエ変換赤外−減衰全反射(FTIR−ATR)分光法によって確認した(図1A〜1Cを参照)。3つの膜を研究した:比較例3(ニートPebax)、比較例2(Pebax/非架橋PEGDA(Pebax/PEGDA))、および発明の実施例1(Pebax/XLPEGDA)。Pebaxのポリアミドセグメントは、−C−O−C、H−N=O、O−C=O、および−N−H官能基に起因する1099cm−1、1640cm−1、1731cm−1、および3293cm−1周りのいくつかの特性ピークを示した。PEGDAは、可塑剤が水素結合(H結合)などの分子間力を減少させるという点で、可塑剤の挙動の特性を示した。図1A〜1Bにおいて、O−C=Oおよび−N−Hに関連する特性ピークは、Pebax1657の1732cm−1および3302cm−1からPebax/PEGDAの約1724cm−1および3300cm−1のより低い波数にシフトした。このシフトは、ポリマーアミドセグメントのN−HとPEOの酸素原子との間の分子内H結合が減少したことを示した。これによって、PEGDAは、膜のH結合の弱化および結晶化度の低下をもたらすポリマーマトリックスにおける可塑剤の挙動を示した。
以下、本発明の好ましい実施形態を項分け記載する。
実施形態1
ガスを分離する方法であって、
ポリ(エーテル−b−アミド)コポリマーと、式(I)または式(II)に従うアクリレート末端ポリ(エチレングリコール)との架橋混合物を含む膜を通してガス流を流すことであって、
前記膜を介して前記ガス流を分離することと、
を含む、方法。
実施形態2
ポリ(エーテル−b−アミド)コポリマーが、60重量%〜80重量%の軟質セグメントと、40重量%〜20重量%の硬質セグメントと、を含む、実施形態1に記載の方法。
実施形態3
光開始剤が、1−ヒドロキシシクロヘキシルフェニルケトン(HCPK)、ベンゾフェノン、またはそれらの組み合わせを含む、実施形態1に記載の方法。
実施形態4
前記光開始剤が、前記アクリレート末端ポリ(エチレングリコール)の重量に基づいて、0.5重量%〜5.0重量%の量である、実施形態4に記載の方法。
実施形態5
前記分離されたガスが、メタンおよび二酸化炭素である、実施形態1に記載の方法。
実施形態6
前記二酸化炭素の前記ガス分離膜への透過性が、メタンよりも少なくとも24倍高い、実施形態6に記載の方法。
実施形態7
ガス分離膜を作製する方法であって、
ポリ(エーテル−b−アミド)コポリマー、式(I)または式(II)に従うアクリレート末端ポリ(エチレングリコール)、および光開始剤を溶媒中に溶解して、ポリマー溶液を形成することと、
前記溶媒を除去して、フィルムを形成することと、
前記フィルムを光活性化剤に曝露して、前記ガス分離膜を形成することと、
を含む、方法。
実施形態8
前記フィルムを前記金型から取り外すことをさらに含む、実施形態7に記載の方法。
実施形態9
前記ガス分離膜を硬化させることをさらに含む、実施形態7に記載の方法。
実施形態10
ポリ(エーテル−b−アミド)コポリマーが、60重量%〜80重量%の軟質セグメントと、40重量%〜20重量%の硬質セグメントと、を含む、実施形態7に記載の方法。
実施形態11
前記光開始剤が、1−ヒドロキシシクロヘキシルフェニルケトン(HCPK)、ベンゾフェノン、またはそれらの組み合わせを含む、実施形態7に記載の方法。
実施形態12
前記光開始剤が、前記アクリレート末端ポリ(エチレングリコール)の重量に基づいて0.5重量%〜4.0重量%の量である、実施形態11に記載の方法。
実施形態13
前記ポリマー溶液が、70℃〜100℃の温度で形成される、実施形態7に記載の方法。
実施形態14
前記ポリマー溶液が、30℃〜80℃の温度で流し込まれる、実施形態7に記載の方法。
実施形態15
前記フィルムが、30秒〜300秒の時間にわたって、300nm〜350nmの波長の紫外線に曝露される、実施形態7に記載の方法。
実施形態16
前記溶媒が、水とアルコールとの混合物を含む、実施形態7に記載の方法。
実施形態17
前記ポリマー溶液が、1重量%〜10重量%のポリエーテルブロックアミドコポリマーを含む、実施形態7に記載の方法。
実施形態18
ポリ(エーテル−b−アミド)コポリマー、アクリレート末端ポリ(エチレングリコール)の混合物を含み、前記アクリレート末端ポリ(エチレングリコール)が、アクリレート末端ポリ(エチレングリコール)に架橋されている、ガス分離膜。
実施形態19
前記ポリ(エーテル−b−アミド)コポリマーが、60重量%〜80重量%の軟質セグメントと、40重量%〜20重量%の硬質セグメントと、を含む、前記ガス分離膜。
実施形態20
前記ガス分離膜が、非架橋ポリ(エーテル−b−アミド)コポリマーよりも100%超の重量損失の低減を達成する、前記ガス分離膜。
Claims (15)
- ポリ(エーテル−b−アミド)コポリマーが、60重量%〜80重量%の軟質セグメントと、40重量%〜20重量%の硬質セグメントと、を含む、請求項1に記載の方法。
- 前記分離されたガスが、メタンおよび二酸化炭素である、請求項1に記載の方法。
- 前記二酸化炭素の前記ガス分離膜への透過性が、メタンよりも少なくとも24倍高い、請求項3に記載の方法。
- 前記フィルムを前記金型から取り外すことをさらに含む、請求項5に記載の方法。
- 前記ガス分離膜を硬化させることをさらに含む、請求項5に記載の方法。
- ポリ(エーテル−b−アミド)コポリマーが、60重量%〜80重量%の軟質セグメントと、40重量%〜20重量%の硬質セグメントと、を含む、請求項5に記載の方法。
- 前記光開始剤が、1−ヒドロキシシクロヘキシルフェニルケトン(HCPK)、ベンゾフェノン、またはそれらの組み合わせを含む、請求項5に記載の方法。
- 前記光開始剤が、前記アクリレート末端ポリ(エチレングリコール)の重量に基づいて0.5重量%〜4.0重量%の量である、請求項9に記載の方法。
- 前記ポリマー溶液が、70℃〜100℃の温度で形成される、請求項5に記載の方法。
- 前記ポリマー溶液が、30℃〜80℃の温度で流し込まれる、請求項5に記載の方法。
- 前記フィルムが、30秒〜300秒の時間にわたって、300nm〜350nmの波長の紫外線に曝露される、請求項5に記載の方法。
- 前記溶媒が、水とアルコールとの混合物を含む、請求項5に記載の方法。
- 前記ポリマー溶液が、1重量%〜10重量%のポリエーテルブロックアミドコポリマーを含む、請求項5に記載の方法。
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PCT/US2018/024299 WO2018222255A1 (en) | 2017-05-30 | 2018-03-26 | Polymer blended membranes for sour gas separation |
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-
2017
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2018
- 2018-03-26 EP EP18717796.9A patent/EP3634609A1/en not_active Withdrawn
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- 2018-03-26 JP JP2019564505A patent/JP6944543B2/ja active Active
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- 2018-03-26 KR KR1020197038502A patent/KR20200015914A/ko not_active Application Discontinuation
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2019
- 2019-11-15 US US16/685,116 patent/US11311837B2/en active Active
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US11311837B2 (en) | 2022-04-26 |
CN111542384B (zh) | 2022-06-07 |
JP2020521628A (ja) | 2020-07-27 |
KR20200015914A (ko) | 2020-02-13 |
US20200078724A1 (en) | 2020-03-12 |
EP3634609A1 (en) | 2020-04-15 |
SA519410667B1 (ar) | 2023-01-09 |
SG10201914008WA (en) | 2020-03-30 |
CN111542384A (zh) | 2020-08-14 |
WO2018222255A1 (en) | 2018-12-06 |
US20180345211A1 (en) | 2018-12-06 |
US10525406B2 (en) | 2020-01-07 |
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