- Title
- Carbon gasification from a molten carbonate eutectic
- Creator
- Glenn, Michael J.; Allen, Jessica A.; Donne, Scott W.
- Relation
- Energy Technology Vol. 7, Issue 10, no. 1900602
- Publisher Link
- http://dx.doi.org/10.1002/ente.201900602
- Publisher
- Wiley - V C H Verlag GmbH
- Resource Type
- journal article
- Date
- 2019
- Description
- This investigation explores the impact of using a ternary alkali metal carbonate eutectic, i.e., Li₂CO₃, Na₂CO₃, and K₂CO₃ (43.5: 31.5: 25 mol%, respectively), as a catalyst for carbon gasification under CO₂ and non‐CO₂ atmospheres. Gasification under CO₂, i.e., the reverse Boudouard reaction, is a well‐understood process with considerable commercial interest. However, in the context of direct carbon fuel cell (DCFC) operations, it is a parasitic reaction because it consumes fuel without producing power. In this study, the effect on carbon gasification of a common DCFC electrolyte is examined. Thermogravimetric analysis shows gasification occurring in the absence of a CO₂ atmosphere, which has significant implications for DCFCs using alkali metal carbonates as the secondary electrolyte. A combined reaction mechanism is proposed which entails gasification from carbonate and carbonate decomposition.
- Subject
- alkali metal carbonate molten salts; carbon gasification; direct carbon fuel cells; gasification catalysis
- Identifier
- http://hdl.handle.net/1959.13/1416861
- Identifier
- uon:37131
- Identifier
- ISSN:2194-4288
- Rights
- This is the peer reviewed version of above article, which has been published in final form at https://doi.org/10.1002/ente.201900602. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
- Language
- eng
- Full Text
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