Renewable Syngas Generation via Low-Temperature Electrolysis: Opportunities and Challenges.

Autor: Raya-Imbernón A; Air Liquide Forschung & Entwicklung GmbH, Innovation Campus Frankfurt, Gwinnerstraße 27-33, 60388 Frankfurt am Main, Germany., Samu AA; eChemicles Zrt, Alsó Kikötő sor 11, Szeged H-6726, Hungary.; Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary., Barwe S; Air Liquide Forschung & Entwicklung GmbH, Innovation Campus Frankfurt, Gwinnerstraße 27-33, 60388 Frankfurt am Main, Germany., Cusati G; Air Liquide Forschung & Entwicklung GmbH, Innovation Campus Frankfurt, Gwinnerstraße 27-33, 60388 Frankfurt am Main, Germany., Fődi T; eChemicles Zrt, Alsó Kikötő sor 11, Szeged H-6726, Hungary., Hepp BM; eChemicles Zrt, Alsó Kikötő sor 11, Szeged H-6726, Hungary., Janáky C; eChemicles Zrt, Alsó Kikötő sor 11, Szeged H-6726, Hungary.; Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary.
Jazyk: angličtina
Zdroj: ACS energy letters [ACS Energy Lett] 2023 Dec 29; Vol. 9 (1), pp. 288-297. Date of Electronic Publication: 2023 Dec 29 (Print Publication: 2024).
DOI: 10.1021/acsenergylett.3c02446
Abstrakt: The production of syngas (i.e., a mixture of CO and H 2 ) via the electrochemical reduction of CO 2 and water can contribute to the green transition of various industrial sectors. Here we provide a joint academic-industrial perspective on the key technical and economical differences of the concurrent (i.e., CO and H 2 are generated in the same electrolyzer cell) and separated (i.e., CO and H 2 are electrogenerated in different electrolyzers) production of syngas. Using a combination of literature analysis, experimental data, and techno-economic analysis, we demonstrate that the production of synthesis gas is notably less expensive if we operate a CO 2 electrolyzer in a CO-selective mode and combine it with a separate PEM electrolyzer for H 2 generation. We also conclude that by the further decrease of the cost of renewable electricity and the increase of CO 2 emission taxes, such prepared renewable syngas will become cost competitive.
Competing Interests: The authors declare the following competing financial interest(s): eChemicles is scaling up its patented CO2 electrolyzer technology to provide an environmentally and economically sustainable alternative to fossil fuel-based chemicals. Air Liquide offers and operates large-scale PEM water electrolysis solutions for the production of low-carbon hydrogen.
(© 2023 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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