Results of recent high temperature coelectrolysis studies at the Idaho National Laboratory

By C. Stoots, J. O'Brien, J. Hartvigsen. 2007

180 citations recorded by the source corpus.

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.

Subfields: Catalysis, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/e3b860e599414f088d47e1e55e695f5721300cc2

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Catalysis

1. A. Hauch
2. M. Mogensen

In Materials Chemistry

1. A. Hauch
2. M. Mogensen
3. R. Küngas
4. J. Hansen
5. A. Hansen
6. P. Blennow
7. Brian Vad Mathiesen
8. S. Ebbesen

Citations in the corpus

• Recent advances in solid oxide cell technology for electrolysis (2020, background): “SOECs are capable of splitting steam and CO2 into H2 and CO, respectively, but can also be operated in co-electrolysis mode, converting an H2O-CO2 mixture directly into synthesis gas (syngas; CO+H2) (10).”
• Nuclear heat for hydrogen production: Coupling a very high/high temperature reactor to a hydrogen production plant (2009, background): “The results were very promising and overall efficiencies of 43–48% were predicted (Stoots et al., 2007; O’Brien et al., 2007a).”