skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Energy storage using an REP with an engine

Patent ·
OSTI ID:1651008

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.

Research Organization:
FuelCell Energy, Danbury, CT (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
EE0006669
Assignee:
FuelCell Energy, Inc. (Danbury, CT)
Patent Number(s):
10,680,265
Application Number:
15/980,305
OSTI ID:
1651008
Resource Relation:
Patent File Date: 05/15/2018
Country of Publication:
United States
Language:
English

References (48)

Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions patent February 2001
Apparatus and Method Using Hydrogen Pressure in Fuel Cell Electric Vehicle patent-application December 2010
Fuel Cell Reforming System with Carbon Dioxide Removal patent-application October 2013
System for the co-production of electricity and hydrogen patent-application September 2004
Fuel cell power plant patent December 1991
Process for Operating a High Temperature Fuel Cell Stack patent-application February 2013
Water Recovery Assembly for Transferring Water from Fuel Cell Cathode Exhaust patent-application September 2009
Methods and Systems for Producing Syngas patent-application September 2019
Co-production of hydrogen and electricity in a high temperature electrochemical system patent-application October 2004
Integrated high efficiency fossil fuel power plant/fuel cell system with CO2 emissions abatement patent July 2008
Production and Storage of Converted Hydrogen patent June 1963
Reformer-Electrolyzer-Purifier (REP) Assembly for Hydrogen Production Systems Incorporating Same and Method of Producing Hydrogen patent-application December 2016
Process for Enabling Carbon-Capture from Existing Combustion Process patent-application March 2014
Flame Stabilized Mixer-Educator-Oxidizer for High Temperature Fuel Cells patent-application April 2014
Carbon Removal from an Integrated Thermal Recovery Process patent-application September 2013
Enhanced High Efficiency Fuel Cell/ Turbine Power Plant patent-application March 2005
High Purity Hydrogen and Electric Power Co-Generation Apparatus and Method patent-application March 2008
System and method for co-production of hydrogen and electrical energy patent-application June 2005
Reforming system for combined cycle plant with partial CO2 capture patent-application July 2008
High-efficiency molten carbonate fuel cell system and method patent October 2016
Electrolyzer cell stack system patent-application September 2005
Systems and Processes for Operating Fuel Cell Systems patent-application May 2011
Solid Oxide Fuel Cell Systems patent-application November 2016
SOFC System with Selective CO2 Removal patent-application May 2013
Poly-Generating Fuel Cell with Thermally Balancing Fuel Processing patent-application October 2015
Electrolysis apparatus patent-application December 2008
Energy conversion system patent January 1998
Method and a System for Combined Hydrogen and Electricity Production Using Petroleum Fuels patent-application May 2013
Systems and Processes of Operating Fuel Cell Systems patent-application July 2013
Fuel cell for hydrogen production, electricity generation and co-production patent-application May 2005
High Temperature Fuel Cell System and Method of Operating the Same patent-application August 2011
Flow Control Assembly for Use with Fuel Cell Systems Operating on Fuels with Varying Fuel Composition patent-application April 2009
Electrolyzer cell stack system patent April 2008
System and Method of Increasing Synthesis Gas Yield in a Fluid Catalytic Cracking Unit patent-application June 2009
FCC process with total catalyst blending patent September 1994
In-situ removal of electrolyte from gas oxidizer patent-application June 2006
Fuel Reforming Apparatus and Fuel Cell System patent-application March 2008
Fuel cell end unit with integrated heat exchanger patent July 2006
Apparatus and process for production of high purity hydrogen patent-application November 2006
Partial CO combustion with staged regeneration of catalyst patent July 1989
Integrated module for solid oxide fuel cell systems patent-application January 2002
Integration of Molten Carbonate Fuel Cells in a Refinery Setting patent-application September 2014
Integrated high efficiency fossil fuel power plant/fuel cell system with CO2 emissions abatement patent-application December 2005
Modular fuel-cell stack assembly patent January 2008
Reliable Carbon-Neutral Power Generation System patent-application March 2014
System and method for networking electrochemical devices patent May 1995
Integrated Power Generation and Chemical Production Using Fuel Cells at a Reduced Electrical Efficiency patent-application September 2014
High-Efficiency Dual-Stack Molten Carbonate Fuel Cell System patent-application February 2010