Journal ArticleDOI
Reactor design for the ABE fermentation using cells of Clostridium acetobutylicum immobilized by adsorption onto bonechar
N. Qureshi,I. S. Maddox +1 more
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In this article, cells of Clostridium acetobutylicum were immobilized by adsorption onto bonechar and used for the production of solvents (ABE fermentation) from whey permeate.Abstract:
Cells of Clostridium acetobutylicum were immobilized by adsorption onto bonechar and used for the production of solvents (ABE fermentation) from whey permeate When the process was performed in packed bed reactors operated in a vertical or inclined mode, solvent productivities approximating 6 kg/(m3h) were obtained However, the systems suffered from blockage due to excess biomass production and gas hold-up These problems were less apparent when a partially-packed bed reactor was operated in the horizontal mode A fluidized bed reactor proved to be the most stable of the systems investigated, and a productivity of 48 kg/(m3h) was maintained over a period of 2000 h of operation The results demonstrate that this type of reactor may have a useful future role in the ABE fermentationread more
Citations
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Biofilm reactors for industrial bioconversion processes: employing potential of enhanced reaction rates
TL;DR: In this paper, the use of biofilm reactors for the production of various chemicals by fermentation and wastewater treatment is described, including ethanol, butanol, lactic acid, acetic acid/vinegar, succinic acid, and fumaric acid.
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Butanol, ‘a superior biofuel’ production from agricultural residues (renewable biomass): recent progress in technology†
TL;DR: In this article, a review of bioconversion of plant materials such as wheat straw (WS), corn stover (CS), barley straw (BS), and switchgrass (SG) to butanol and process technology that converts these materials into this superior biofuel is presented.
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Biofilms as living catalysts in continuous chemical syntheses.
TL;DR: This review highlights recent advancements in spatiotemporal biofilm characterization and new biofilm reactor developments for the production of value-added fine chemicals as well as current challenges and future scenarios.
Journal ArticleDOI
Technologies for butanol recovery integrated with fermentations
TL;DR: In this article, five technologies for in-situ product recovery have been compared on the basis of design parameters and energy efficiency: stripping, adsorption, liquid-liquid extraction, pervaporation and membrane solvent extraction.
Journal ArticleDOI
Production of acetone butanol ethanol (ABE) by a hyper-producing mutant strain of Clostridium beijerinckii BA101 and recovery by pervaporation.
N. Qureshi,Hans-Peter M Blaschek +1 more
TL;DR: In an integrated process of butanol fermentation−recovery, solvent productivities were improved to 200% of the control batch fermentation productivities and the membrane flux was not affected by the active fermentation broth.
References
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Journal ArticleDOI
Continuous solvent production from whey permeate using cells of Clostridium acetobutylicum immobilized by adsorption onto bonechar
N. Qureshi,Ian S. Maddox +1 more
TL;DR: Cells of Clostridium acetobutylicum were immobilized by adsorption onto bonechar and used in a packed bed reactor for the continuous production of solvents from whey permeate and high concentrations of lactose favored solventogenesis, while low concentrations favored acidogenesis.
Journal ArticleDOI
Use ofClostridium acetobutylicum P262 for production of solvents from whey permeate
B. M. Ennis,Ian S. Maddox +1 more
TL;DR: The production of solvents from whey permeate in batch fermentation using Clostridiumacetobutylicum P262 was examined, and using a semi-synthetic medium galactose was shown to be as effective a substrate as glucose.
Journal ArticleDOI
A horizontal packed-bed bioreactor to reduce CO2 gas holdup in the continuous production of ethanol by immobilized yeast cells
Takeshi Shiotani,Tsuneo Yamané +1 more
TL;DR: The horizontal packed-bed bioreactor developed with a free space above the gel bed has a very high performance which makes it promising for the economic production of ethanol.
Journal ArticleDOI
In-line toxic product removal during solvent production by continuous fermentation using immobilized Clostridium acetobutylicum
TL;DR: In this paper, cells of Clostridium acetobutylicum were immobilized by adsorption onto bonechar, and used in a two-stage continuous reactor for solvent production from whey permeate.
Journal ArticleDOI
Continuous isopropanol-butanol-ethanol fermentation by immobilized Clostridium beijerinckii cells in a packed bed fermenter
TL;DR: The use of a packed bed reactor containing Ca-alginate immobilized Clostridium beijerinckii cells for continuous IBE (isopropanol-butanol-ethanol)-fermentation has been studied as mentioned in this paper.