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Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis

The chemical industry is transitioning to more sustainable and biobased processes. One key element of this transition is coupling energy fluxes and feedstock utilization for optimizing processes, routes and efficiencies. Here, we show for the first time the coupling of the Kolbe electrolysis at the...

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Autores principales: Teetz, Niklas, Holtmann, Dirk, Harnisch, Falk, Stöckl, Markus
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10098509/
https://www.ncbi.nlm.nih.gov/pubmed/36179068
http://dx.doi.org/10.1002/anie.202210596
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author Teetz, Niklas
Holtmann, Dirk
Harnisch, Falk
Stöckl, Markus
author_facet Teetz, Niklas
Holtmann, Dirk
Harnisch, Falk
Stöckl, Markus
author_sort Teetz, Niklas
collection PubMed
description The chemical industry is transitioning to more sustainable and biobased processes. One key element of this transition is coupling energy fluxes and feedstock utilization for optimizing processes, routes and efficiencies. Here, we show for the first time the coupling of the Kolbe electrolysis at the anode with a subsequent microbial conversion of the cathodically produced co‐product hydrogen. Kolbe electrolysis of valeric acid yields the liquid drop‐in fuel additive n‐octane. Subsequently, the solvent isopropanol is produced by resting Cupriavidus necator cells using gaseous electrolysis products (esp. CO(2) and H(2)). The resting microbial cells show carbon efficiencies of up to 41 % and Coulombic/Faradaic efficiencies of 60 % and 80 % for anodic and cathodic reactions, respectively. The implementation of a paired electrolyser resulted in superior process performances with overall efficiencies of up to 64.4 %.
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spelling pubmed-100985092023-04-14 Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis Teetz, Niklas Holtmann, Dirk Harnisch, Falk Stöckl, Markus Angew Chem Int Ed Engl Communications The chemical industry is transitioning to more sustainable and biobased processes. One key element of this transition is coupling energy fluxes and feedstock utilization for optimizing processes, routes and efficiencies. Here, we show for the first time the coupling of the Kolbe electrolysis at the anode with a subsequent microbial conversion of the cathodically produced co‐product hydrogen. Kolbe electrolysis of valeric acid yields the liquid drop‐in fuel additive n‐octane. Subsequently, the solvent isopropanol is produced by resting Cupriavidus necator cells using gaseous electrolysis products (esp. CO(2) and H(2)). The resting microbial cells show carbon efficiencies of up to 41 % and Coulombic/Faradaic efficiencies of 60 % and 80 % for anodic and cathodic reactions, respectively. The implementation of a paired electrolyser resulted in superior process performances with overall efficiencies of up to 64.4 %. John Wiley and Sons Inc. 2022-11-17 2022-12-12 /pmc/articles/PMC10098509/ /pubmed/36179068 http://dx.doi.org/10.1002/anie.202210596 Text en © 2022 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH https://creativecommons.org/licenses/by-nc/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Communications
Teetz, Niklas
Holtmann, Dirk
Harnisch, Falk
Stöckl, Markus
Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis
title Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis
title_full Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis
title_fullStr Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis
title_full_unstemmed Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis
title_short Upgrading Kolbe Electrolysis—Highly Efficient Production of Green Fuels and Solvents by Coupling Biosynthesis and Electrosynthesis
title_sort upgrading kolbe electrolysis—highly efficient production of green fuels and solvents by coupling biosynthesis and electrosynthesis
topic Communications
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10098509/
https://www.ncbi.nlm.nih.gov/pubmed/36179068
http://dx.doi.org/10.1002/anie.202210596
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