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1. WO2018139610 - BIPOLAR ELECTROLYTIC VESSEL, BIPOLAR ELECTROLYTIC VESSEL FOR ALKALI WATER ELECTROLYSIS, AND METHOD FOR MANUFACTURING HYDROGEN

Publication Number WO/2018/139610
Publication Date 02.08.2018
International Application No. PCT/JP2018/002581
International Filing Date 26.01.2018
IPC
C25B 13/02 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
13Diaphragms; Spacing elements
02characterised by form or shape
C25B 1/08 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
02of hydrogen or oxygen
04by electrolysis of water
06in cells with flat or plate-like electrodes
08of the filter-press type
C25B 9/00 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
9Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies
C25B 9/20 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
9Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies
18Assemblies comprising a plurality of cells
20of the filter-press type
C25B 11/03 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR
11Electrodes; Manufacture thereof not otherwise provided for
02characterised by shape or form
03perforated or foraminous
CPC
C25B 1/04
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
1Electrolytic production of inorganic compounds or non-metals
01Products
02Hydrogen or oxygen
04by electrolysis of water
C25B 11/031
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
11Electrodes; Manufacture thereof not otherwise provided for
02characterised by shape or form
03perforated or foraminous
031Porous electrodes
C25B 13/02
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
13Diaphragms; Spacing elements
02characterised by shape or form
C25B 9/73
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
9Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
70Assemblies comprising two or more cells
73of the filter-press type
C25B 9/77
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
BELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
9Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
70Assemblies comprising two or more cells
73of the filter-press type
77having diaphragms
Y02E 60/36
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
30Hydrogen technology
36Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Applicants
  • 旭化成株式会社 ASAHI KASEI KABUSHIKI KAISHA [JP]/[JP]
Inventors
  • 鈴木 悠介 SUZUKI Yusuke
  • 平野 稔幸 HIRANO Toshiyuki
  • 中嶋 泰大 NAKAJIMA Yasuhiro
  • 内野 陽介 UCHINO Yousuke
Agents
  • 杉村 憲司 SUGIMURA Kenji
Priority Data
2017-01255226.01.2017JP
2017-01255326.01.2017JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) BIPOLAR ELECTROLYTIC VESSEL, BIPOLAR ELECTROLYTIC VESSEL FOR ALKALI WATER ELECTROLYSIS, AND METHOD FOR MANUFACTURING HYDROGEN
(FR) RÉCIPIENT ÉLECTROLYTIQUE BIPOLAIRE, RÉCIPIENT ÉLECTROLYTIQUE BIPOLAIRE POUR ÉLECTROLYSE D'EAU ALCALINE, ET PROCÉDÉ DE PRODUCTION D'HYDROGÈNE
(JA) 複極式電解槽、アルカリ水電解用複極式電解槽、及び水素製造方法
Abstract
(EN) The purpose of the present invention is to maintain superior electrolysis efficiency and high generated gas purity even with high density current operation in a bipolar electrolytic vessel for alkali water electrolysis using a porous membrane that includes inorganic particles as a barrier membrane. Provided are a bipolar electrolytic vessel, bipolar electrolytic vessel for alkali water electrolysis, and method for manufacturing hydrogen, said bipolar electrolytic vessel being provided with a plurality of assemblies of positive electrode, negative electrode, and barrier membrane disposed between the positive electrode and negative electrode, wherein the bipolar electrolytic vessel is characterized in that at least one of the positive electrode and negative electrode is a porous electrode with an average pore diameter of 10 – 200 nm and the barrier membrane is a porous membrane that includes inorganic particles with an average primary particle size of 20 – 300 nm.
(FR) L'objet de la présente invention est de conserver une efficacité d'électrolyse supérieure et une pureté de gaz généré élevée même à un régime de courant à haute densité dans un récipient électrolytique bipolaire pour l'électrolyse de l'eau alcaline, à l'aide d'une membrane poreuse qui contient des particules inorganiques à titre de membrane de barrière. Un récipient électrolytique bipolaire, un récipient électrolytique bipolaire pour l'électrolyse de l'eau alcaline, et un procédé de production d'hydrogène selon l'invention sont décrits, où ledit récipient électrolytique bipolaire comprend une pluralité d'ensembles électrode positive, électrode négative, et membrane de barrière placée entre l'électrode positive et l'électrode négative, ledit récipient électrolytique bipolaire étant caractérisé en ce qu'au moins l'une de l'électrode positive et de l'électrode négative est une électrode poreuse ayant un diamètre de pore moyen de 10 à 200 nm et la membrane de barrière est une membrane poreuse qui contient des particules inorganiques ayant une taille de particule primaire moyenne de 20 à 300 nm.
(JA) 本発明は、隔膜として無機粒子を含有した多孔膜を使用したアルカリ水電解用複極式電解槽において、高密度電流運転の場合でも、優れた電解効率及び高い発生ガス純度を維持することを目的とする。陽極と、陰極と、前記陽極と前記陰極との間に配置された隔膜との組み合わせを、複数備える、複極式電解槽であって、前記陽極及び前記陰極の少なくとも一方が、平均孔径10nm以上200nm以下の多孔体電極であり、前記隔膜が、平均一次粒径20nm以上300nm以下の無機粒子を含有する多孔膜である、ことを特徴とする、複極式電解槽、アルカリ水電解用複極式電解槽、並びに水素製造方法。
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