Enhancing the gas–liquid mass transfer during microbial electrosynthesis by the variation of CO2 flow rate

2021 ◽  
Vol 101 ◽  
pp. 50-58 ◽  
Author(s):  
Mélida del Pilar Anzola Rojas ◽  
Marcelo Zaiat ◽  
Ernesto Rafael González ◽  
Heleen De Wever ◽  
Deepak Pant
Keyword(s):  
Mass Transfer ◽  
Flow Rate ◽  
Microbial Electrosynthesis ◽  
Liquid Mass ◽  
Liquid Mass Transfer ◽  
Co2 Flow

scholarly journals Integrating Syngas Fermentation into a Single-Cell Microbial Electrosynthesis (MES) Reactor

Catalysts ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 40
Author(s):  
Vasan Sivalingam ◽  
Vafa Ahmadi ◽  
Omodara Babafemi ◽  
Carlos Dinamarca
Keyword(s):  
Mass Transfer ◽  
Acetic Acid ◽  
Single Cell ◽  
Second Phase ◽  
Syngas Fermentation ◽  
Mixed Culture Fermentation ◽  
Microbial Electrosynthesis ◽  
Liquid Mass ◽  
Gas Fermentation ◽  
Liquid Mass Transfer

This study presents a series of experiments to test the integration of syngas fermentation into a single-cell microbial electrosynthesis (MES) process. Minimal gas–liquid mass transfer is the primary bottleneck in such gas-fermentation processes. Therefore, we hypothesized that MES integration could trigger the thermodynamic barrier, resulting in higher gas–liquid mass transfer and product-formation rates. The study was performed in three different phases as batch experiments. The first phase dealt with mixed-culture fermentation at 1 bar H2 headspace pressure. During the second phase, surface electrodes were integrated into the fermentation medium, and investigations were performed in open-circuit mode. In the third phase, the electrodes were poised with a voltage, and the second phase was extended in closed-circuit mode. Phase 2 demonstrated three times the gas consumption (1021 mmol) and 63% more production of acetic acid (60 mmol/L) than Phase 1. However, Phase 3 failed; at –0.8 V, acetic acid was oxidized to yield hydrogen gas in the headspace.

Enhancement of formic acid production from CO2 in formate dehydrogenase reaction using nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (111) ◽  
pp. 109978-109982 ◽  
Author(s):  
Young-Kee Kim ◽  
Sung-Yeob Lee ◽  
Byung-Keun Oh
Keyword(s):  
Mass Transfer ◽  
Formic Acid ◽  
Acid Production ◽  
Transfer Rate ◽  
Formate Dehydrogenase ◽  
Mass Transfer Rate ◽  
Liquid Mass ◽  
Dehydrogenase Reaction ◽  
Liquid Mass Transfer ◽  
Mesoporous Nanoparticles

In an enzyme process using a gas substrate, the enhanced gas liquid mass transfer rate of the gas substrate by methyl-functionalized mesoporous nanoparticles could improve the productivity.

Solid-liquid mass transfer in agitated Newtonian and non-Newtonian fluids

1988 ◽  
Vol 27 (7) ◽  
pp. 1246-1259 ◽  
Author(s):  
Pyare Lal ◽  
Satendra Kumar ◽  
Siddh N. Upadhyay ◽  
Yogendra D. Upadhya
Keyword(s):  
Mass Transfer ◽  
Newtonian Fluids ◽  
Liquid Mass ◽  
Liquid Mass Transfer ◽  
Solid Liquid
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