Results Of Recent High Temperature Co-Electrolysis Studies At The Idaho National Laboratory

Conference · Thu Nov 01 04:00:00 EDT 2007

OSTI ID:923494

Stoots, C M; O'Brien, James E; Hartvigsen, Joseph J

For the past several years, the Idaho National Laboratory and Ceramatec, Inc. have been studying the feasibility of high temperature solid oxide electrolysis for large-scale, nuclear-powered hydrogen production. Parallel to this effort, the INL and Ceramatec have been researching high temperature solid oxide co-electrolysis of steam/CO2 mixtures to produce syngas, the raw material for synthetic fuels production. When powered by nuclear energy, high temperature co-electrolysis offers a carbon-neutral means of syngas production while consuming CO2. The INL has been conducting experiments to characterize the electrochemical performance of co-electrolysis, as well as validate INL-developed computer models. An inline methanation reactor has also been tested to study direct methane production from co-electrolysis products. Testing to date indicate that high temperature steam electrolysis cells perform equally well under co-electrolysis conditions. Process model predictions compare well with measurements for outlet product compositions. The process appears to be a promising technique for large-scale syngas production.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC07-99ID13727
• OSTI ID: 923494
• Report Number(s): INL/CON-07-12821
• Country of Publication: United States
• Language: English

Related Subjects

10 SYNTHETIC FUELS
COMPUTERS
ELECTROLYSIS
HYDROGEN PRODUCTION
METHANATION
METHANE
MIXTURES
NUCLEAR ENERGY
OXIDES
PERFORMANCE
PRODUCTION
RAW MATERIALS
STEAM
SYNTHETIC FUELS
TESTING
electrolysis
syngas