Title: Reformer-electrolyzer-purifier (REP) assembly for hydrogen production, systems incorporating same and method of producing hydrogen

Abstract

A high temperature electrolyzer assembly comprising at least one electrolyzer fuel cell including an anode and a cathode separated by an electrolyte matrix, and a power supply for applying a reverse voltage to the at least one electrolyzer fuel cell, wherein a gas feed comprising steam and one or more of CO2 and hydrocarbon fuel is fed to the anode of the at least one electrolyzer fuel cell, and wherein, when the power supply applies the reverse voltage to the at least one electrolyzer fuel cell, hydrogen-containing gas is generated by an electrolysis reaction in the anode of the at least one electrolyzer fuel cell and carbon dioxide is separated from the hydrogen-containing gas so that the at least one electrolyzer fuel cell outputs the hydrogen-containing gas and separately outputs an oxidant gas comprising carbon dioxide and oxygen.

Inventors:

Jahnke, Fred C.; Lambrech, Matthew; Patel, Pinakin; Farooque, Mohammad; Yuh, Chao-Yi

Issue Date:

2021-01-12

Research Org.:

FuelCell Energy, Danbury, CT (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1805388

Patent Number(s):

10892507

Application Number:

15/115,186

Assignee:

FuelCell Energy, Inc. (Danbury, CT)

Patent Classifications (CPCs):

C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

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C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS

C25B1/04 - by electrolysis of water
C25B15/08 - Supplying or removing reactants or electrolytes

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY

H01M2008/1095 - {Fuel cells with polymeric electrolytes}
H01M2008/1293 - {Fuel cells with solid oxide electrolytes}
H01M2008/147 - {Fuel cells with molten carbonates}
H01M8/04089 - of gaseous reactants
H01M8/0618 - {Reforming processes, e.g. autothermal, partial oxidation or steam reforming}
H01M8/0668 - Removal of carbon monoxide or carbon dioxide
H01M8/12 - operating at high temperature, e.g. with stabilised ZrO2 electrolyte
H01M8/145 - {comprising carbonates}
H01M8/186 - {by electrolytic decomposition of the electrolytic solution or the formed water product}

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

Y02E60/36 - Hydrogen production from non-carbon containing sources
Y02E60/50 - Fuel cells

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

Y02P20/129 - Energy recovery

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DOE Contract Number:  

EE0006669

Resource Type:

Patent

Resource Relation:

Patent File Date: 01/30/2015

Country of Publication:

United States

Language:

English