Project Continuous hydrogen and caproate production in a two-stage anaerobic bioprocess: proof of concept

Basic data

Title:
Continuous hydrogen and caproate production in a two-stage anaerobic bioprocess: proof of concept
Duration:
01/11/2020 to 31/10/2022
Abstract / short description:
Organic wastes can be utilized as a feedstock for a chain-elongation process
for the production of valuable chemicals of five or more carbons. This can be performed by anaerobic populations in a microbiome reactor through reverse beta-oxidation, where short-chain carboxylic acids (C2-C5) can be sequentially reduced with acetyl-CoA (evolved from ethanol or lactate as electron donors) to produce medium-chain carboxylic acids, including n-caproate (C6), n-heptylate (C7), n-caprylate (C8), and others (1–3). The concept of coupling a primary fermentation to the production of medium-chain carboxylic acids is now an important research area because with smart bioprocess engineering a possibility exists that external electron donors do not need to be procured, but that they can be produced from the waste as well.
Keywords:
chain elongation; carboxylic acid, caproate, hydrogen

Involved staff

Managers

Center for Applied Geoscience
Department of Geoscience, Faculty of Science

Local organizational units

Center for Applied Geoscience
Department of Geoscience
Faculty of Science

Funders

Bonn, Nordrhein-Westfalen, Germany
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