General technoeconomic analysis for electrochemical coproduction coupling carbon dioxide reduction with organic oxidation

Jonggeol Na, Bora Seo, Jeongnam Kim, Chan Woo Lee, Hyunjoo Lee, Yun Jeong Hwang, Byoung Koun Min, Dong Ki Lee, Hyung-Suk Oh () and Ung Lee ()
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Jonggeol Na: Korea Institute of Science and Technology (KIST)
Bora Seo: Korea Institute of Science and Technology (KIST)
Jeongnam Kim: Korea Institute of Science and Technology (KIST)
Chan Woo Lee: Kookmin University
Hyunjoo Lee: Korea Institute of Science and Technology (KIST)
Yun Jeong Hwang: Korea Institute of Science and Technology (KIST)
Byoung Koun Min: Korea Institute of Science and Technology (KIST)
Dong Ki Lee: Korea Institute of Science and Technology (KIST)
Hyung-Suk Oh: Korea Institute of Science and Technology (KIST)
Ung Lee: Korea Institute of Science and Technology (KIST)

Nature Communications, 2019, vol. 10, issue 1, 1-13

Abstract: Abstract Electrochemical processes coupling carbon dioxide reduction reactions with organic oxidation reactions are promising techniques for producing clean chemicals and utilizing renewable energy. However, assessments of the economics of the coupling technology remain questionable due to diverse product combinations and significant process design variability. Here, we report a technoeconomic analysis of electrochemical carbon dioxide reduction reaction–organic oxidation reaction coproduction via conceptual process design and thereby propose potential economic combinations. We first develop a fully automated process synthesis framework to guide process simulations, which are then employed to predict the levelized costs of chemicals. We then identify the global sensitivity of current density, Faraday efficiency, and overpotential across 295 electrochemical coproduction processes to both understand and predict the levelized costs of chemicals at various technology levels. The analysis highlights the promise that coupling the carbon dioxide reduction reaction with the value-added organic oxidation reaction can secure significant economic feasibility.

Date: 2019
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DOI: 10.1038/s41467-019-12744-y

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