Bioethanol Production From H2/CO2 by Solventogenesis Using Anaerobic Granular Sludge: Effect of Process Parameters

He, Yaxue; Cassarini, Chiara; Lens, Piet N.L.

doi:10.3389/fmicb.2021.647370

Cited by 5 publications

(1 citation statement)

References 43 publications

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“…49 Acetyl-CoA synthetase uses the end product of the carbon monoxide dehydrogenase reaction, with carbon monoxide (CO) as the substrate to produce acetyl-CoA. 50,51 The production of ethanol and acetic acid from the syngas components CO, H 2 and CO 2 involves a series of simple chemical processes 9,52 (Fig. 2).…”

Section: Wood-ljungdahl Metabolic Pathwaymentioning

confidence: 99%

Progress and development of syngas fermentation processes toward commercial bioethanol production

Owoade

Alshami

Levin

et al. 2023

Biofuels Bioprod Bioref

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Syngas is created through the thermochemical conversion of biomass using gasification or pyrolysis and from CO‐rich off‐gases obtained from industries such as steel mills. The Wood–Ljungdahl metabolic pathway, or one of its variations, is used by acetogenic bacteria to convert syngas components (CO, H2, and CO2) to alcohols and other compounds. Many factors affect how well syngas is fermented, including the bacteria species used, syngas composition, medium components, bioreactor type, operational parameters used and the gas–liquid mass transfer rate. These parameters impact carbon and electron flow in the bacteria, influencing the distribution, concentration and metabolic end‐product yield, which determines process feasibility. This article focuses on gas composition, microorganisms, gas–liquid mass transfer fermentation strategies, medium design and commercialization activities to develop the syngas fermentation processes.

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