Results 71 to 80 of about 247 (125)

Investigation and Modeling of Gas-Liquid Mass Transfer in a Sparged and Non-Sparged Continuous Stirred Tank Reactor with Potential Application in Syngas Fermentation

open access: yesFermentation, 2019
Syngas (mixture of CO, H2 and CO2) fermentation suffers from mass transfer limitation due to low solubility of CO and H2 in the liquid medium. Therefore, it is critical to characterize the mass transfer in syngas fermentation reactors to guide in ...
Kan Liu   +5 more
doaj   +1 more source

Hot prospects: harnessing thermophilic microbes for syngas fermentation

open access: yesTrends in Biotechnology
Syngas fermentation is emerging as a promising avenue for the sustainable production of fuels and chemicals. Primarily consisting of carbon monoxide (CO), hydrogen, and carbon dioxide, syngas can be produced by the gasification of sustainable feedstocks such as waste or biomass.
Anastasia Galani   +2 more
openaire   +3 more sources

Tailor‐made PAT platform for safe syngas fermentations in batch, fed‐batch and chemostat mode with Rhodospirillum rubrum

open access: yesMicrobial Biotechnology, 2017
Summary Recently, syngas has gained significant interest as renewable and sustainable feedstock, in particular for the biotechnological production of poly([R]‐3‐hydroxybutyrate) (PHB).
Stephanie Karmann   +5 more
doaj   +1 more source

Mass transfer measurements for syngas fermentation

open access: yes, 2020
A general scale-up correlation is developed for the volumetric gas-liquid mass transfer coefficient (k[Subscript L]a) in stirred-tank reactors (STRs) for oxygen transport using results from the literature and the current study. Power data for the dispersion of air in water by a six-bladed Rushton impeller are obtained by measuring electrical power, and
openaire   +3 more sources

Improving Carbon Fixation and Acetate Production from Syngas Fermentation: On-Demand Versus Continuous Feeding

open access: yesFermentation
Syngas fermentation is a promising carbon capture and utilization (CCU) technology for producing carboxylic acids while transforming low-cost waste gas into high-value products. This study evaluates the two bioreactor feeding strategies for synthesis gas
Marta Pacheco   +3 more
doaj   +1 more source

Growth and Product Formation of Clostridium ljungdahlii in Presence of Cyanide

open access: yesFrontiers in Microbiology, 2018
Cyanide is a minor constituent of crude syngas whose content depends on the feedstock and gasification procedure. It is a known poison to metal catalysts and inhibits iron-containing enzymes like carbon monoxide dehydrogenase of acetogenic organisms ...
Florian Oswald   +4 more
doaj   +1 more source

Sustainable production of fermentable gases (H₂ and CO₂) via fluidized bed gasification of wood waste and hydrochar

open access: yesSustainable Chemistry for Climate Action
Steam-bubbling fluidized bed (BFB) gasification offers a carbon-efficient route for coupling solid-waste valorization with microbial upgrading. This work investigates the pilot-scale production of a CO-lean, H₂/CO₂-rich syngas tailored for fermentation ...
J. Guerrero   +4 more
doaj   +1 more source

Syngas Fermentation at Elevated Pressure [PDF]

open access: yesChemie Ingenieur Technik, 2018
A. Infantes   +5 more
openaire   +1 more source

Optimized Biofuels production by syngas fermentation [PDF]

open access: yes, 2021
The study carried out during the present Ph.D. program aimed at investigating the fermentation of syngas by Clostridium carboxidivorans to produce biofuels, with special attention on butanol. C. carboxidivorans is an acetogenic bacteria able to fix C-1 gases into biomass and to produce extracellular metabolites of interest.
openaire   +1 more source

Energy recovery from syngas and pyrolysis wastewaters with anaerobic mixed cultures

open access: yesBioresources and Bioprocessing
The anaerobic digestion of aqueous condensate from fast pyrolysis is a promising technology for enhancing carbon and energy recovery from waste. Syngas, another pyrolysis product, could be integrated as a co-substrate to improve process efficiency ...
Alberto Robazza, Anke Neumann
doaj   +1 more source

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