JPWO2020066298A1 - 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 - Google Patents
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 Download PDFInfo
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- JPWO2020066298A1 JPWO2020066298A1 JP2020548086A JP2020548086A JPWO2020066298A1 JP WO2020066298 A1 JPWO2020066298 A1 JP WO2020066298A1 JP 2020548086 A JP2020548086 A JP 2020548086A JP 2020548086 A JP2020548086 A JP 2020548086A JP WO2020066298 A1 JPWO2020066298 A1 JP WO2020066298A1
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- Prior art keywords
- support
- zeolite membrane
- zeolite
- longitudinal direction
- membrane composite
- Prior art date
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- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 263
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 262
- 239000010457 zeolite Substances 0.000 title claims abstract description 262
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- 238000000034 method Methods 0.000 claims description 11
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
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- 238000001179 sorption measurement Methods 0.000 description 3
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- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
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- 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
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- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001388 sodium aluminate Inorganic materials 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
- 229940073455 tetraethylammonium hydroxide Drugs 0.000 description 1
- LRGJRHZIDJQFCL-UHFFFAOYSA-M tetraethylazanium;hydroxide Chemical compound [OH-].CC[N+](CC)(CC)CC LRGJRHZIDJQFCL-UHFFFAOYSA-M 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 229930195735 unsaturated hydrocarbon Natural products 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000005406 washing Methods 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
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- B01D69/10—Supported membranes; Membrane supports
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- 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
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Abstract
Description
11 支持体
12 ゼオライト膜
112 (支持体の)外側面
113 (支持体の)内側面
A (周方向における支持体厚さの)最大値
B (周方向における支持体厚さの)最小値
J1 中心軸
S11〜S15,S21〜S22 ステップ
好ましくは、前記支持体厚さが前記最大値Aである部分における前記ゼオライト膜の膜厚a、および、前記支持体厚さが前記最小値Bである部分における前記ゼオライト膜の膜厚bは、|a−b|/((a+b)/2)≦10%を満たす。
Claims (11)
- ゼオライト膜の支持に用いられる多孔質の円筒状の支持体であって、
長手方向に延びる中心軸を中心とする略円筒面状の内側面と、
前記内側面の周囲を囲む略円筒面状の外側面と、
を備え、
前記内側面と前記外側面との間の径方向の距離である支持体厚さの周方向における最大値Aおよび最小値Bは、長手方向の少なくとも一部において(A−B)/(A+B)≦0.3を満たす。 - 請求項1に記載の支持体であって、
長手方向の全長に亘って、前記最大値Aおよび前記最小値Bは(A−B)/(A+B)≦0.3を満たす。 - 請求項1または2に記載の支持体であって、
前記最大値Aおよび前記最小値Bは、長手方向の少なくとも一部において(A−B)/(A+B)≦0.2を満たす。 - 請求項1ないし3のいずれか1つに記載の支持体であって、
長手方向の前記少なくとも一部における前記内側面の平均半径Xおよび真円度Yは、Y/X≦0.5を満たす。 - 請求項1ないし4のいずれか1つに記載の支持体であって、
セラミック焼結体により形成される。 - ゼオライト膜複合体であって、
請求項1ないし5のいずれか1つに記載の支持体と、
前記支持体上に形成されたゼオライト膜と、
を備える。 - 請求項6に記載のゼオライト膜複合体であって、
前記ゼオライト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6または7に記載のゼオライト膜複合体であって、
前記ゼオライト膜の膜厚は1μm以下である。 - ゼオライト膜複合体の製造方法であって、
a)種結晶を準備する工程と、
b)請求項1ないし5のいずれか1つに記載の支持体上に前記種結晶を付着させる工程と、
c)水熱合成により前記種結晶からゼオライトを成長させて前記支持体上にゼオライト膜を形成する工程と、
を備える。 - 分離方法であって、
d)請求項6ないし8のいずれか1つに記載のゼオライト膜複合体を準備する工程と、
e)複数種類のガスまたは液体を含む混合物質を前記ゼオライト膜複合体に供給し、前記混合物質中の透過性が高い物質を、前記ゼオライト膜複合体を透過させることにより前記混合物質から分離する工程と、
を備える。 - 請求項10に記載の分離方法であって、
前記混合物質は、水素、ヘリウム、窒素、酸素、水、水蒸気、一酸化炭素、二酸化炭素、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種類以上の物質を含む。
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