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Title: Energy storage using an REP with an engine

Abstract

An energy storage system includes a power plant configured to generate an exhaust gas comprising carbon dioxide. The energy storage system further includes a first fuel cell configured to operate in reverse as an electrolyzer. The first fuel cell is configured to receive at least a portion of the exhaust gas from the power plant. An anode is configured to receive carbon dioxide via the exhaust gas and methane from a separate feed, and the anode is configured to output a hydrogen-containing gas mixture. The energy storage system further includes a reformer configured to methanate the hydrogen-containing gas mixture to convert substantially all of the carbon monoxide in the hydrogen-containing gas mixture to methane. The energy storage system further includes a second fuel cell operating in reverse as a hydrogen pump, the second fuel cell configured to separate hydrogen from a gas mixture output by the reformer.

Inventors:
;
Issue Date:
Research Org.:
FuelCell Energy, Danbury, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1651008
Patent Number(s):
10680265
Application Number:
15/980,305
Assignee:
FuelCell Energy, Inc. (Danbury, CT)
Patent Classifications (CPCs):
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
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
EE0006669
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/15/2018
Country of Publication:
United States
Language:
English

Citation Formats

Jahnke, Fred C., and Lambrech, Matthew. Energy storage using an REP with an engine. United States: N. p., 2020. Web.
Jahnke, Fred C., & Lambrech, Matthew. Energy storage using an REP with an engine. United States.
Jahnke, Fred C., and Lambrech, Matthew. Tue . "Energy storage using an REP with an engine". United States. https://www.osti.gov/servlets/purl/1651008.
@article{osti_1651008,
title = {Energy storage using an REP with an engine},
author = {Jahnke, Fred C. and Lambrech, Matthew},
abstractNote = {An energy storage system includes a power plant configured to generate an exhaust gas comprising carbon dioxide. The energy storage system further includes a first fuel cell configured to operate in reverse as an electrolyzer. The first fuel cell is configured to receive at least a portion of the exhaust gas from the power plant. An anode is configured to receive carbon dioxide via the exhaust gas and methane from a separate feed, and the anode is configured to output a hydrogen-containing gas mixture. The energy storage system further includes a reformer configured to methanate the hydrogen-containing gas mixture to convert substantially all of the carbon monoxide in the hydrogen-containing gas mixture to methane. The energy storage system further includes a second fuel cell operating in reverse as a hydrogen pump, the second fuel cell configured to separate hydrogen from a gas mixture output by the reformer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}

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