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Showing 1 to 20 of 184 for “"butanol"”.
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Extinction strain rates of n-butanol, 2-butanol and iso-butanol in counterflow non-premixed flamelets
The extinction strain rates of three butanol isomers, (n-butanol, sec-butanol and iso-butanol) were studied experimentally in a counterflow burner, and computationally using a one-dimensional numerical model. The experimental results provided an insight in how the difference between molecular …
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Production of 1-butanol and butanol isomers by metabolically engineered Clostridium beijerinckii and Saccharomyces cerevisiae
… is to produce four-carbon alcohols such as 1-butanol and 2,3-butanediol, and isobutanol as advanced biofuels and chemicals from microorganisms through metabolic engineering, systems biology, and synthetic biology approaches. Biobutanol is an attractive renewable biofuel and intermediate …
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Characterization of 1-butanol electrospray combustion
… the characteristics of electrosprays of 1-butanol that burn in air. Still images and high-speed movies captured with a laser sheet present helped to establish general flame phenomenology and features such as shape, size, and stability of the spray flame. The dependence of the flame …
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Bio-butanol fuel atomization and combustion processes
Three bio-butanol fuel atomization and combustion technologies were considered, namely butanol electrostatic sprays, butanol non-premixed flames, and butanol kinetic modeling in view of the emergence of methods of production of this fuel from biological sources. Butanol electrospray (e-spray) …
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Enzymology of butanol formation in Clostridium Beijerinckii
… enzymes and purification and characterization of butanol-forming enzymes. More sensitive and accurate procedures for the determination of acids and solvents in cultures have been developed, which led to the recognition of the onset of solvent production at the mid-exponential phase, about two h …
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Physiological Changes Occurring in the Cellular Membranes of Clostridium Acetobutylicum ATCC 824 and a Butanol-Tolerant Mutant During the Acetone-Butanol-Ethanol Fermentation
The acetone-butanol-ethanol fermentation by Clostridium acetobutylicum is not able to compete economically with the petroleum methods, due to the premature termination of this fermentation from the butanol produced by the cell. It is known that alcohols disrupt the membrane structure and function, …
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Differential Protein Expression and Butanol Production using <i>Clostridium beijerinckii</i>
… This problem may be remedied by the use of butanol. Butanol is far less corrosive than ethanol and holds 95% the energy of gasoline per gallon. Our research uses the bacterium <i>Clostridium beijerinckii</i> as the model for the fermentative production of butanol using discarded …
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House Fly Head (Musca Domestica L.) Acetylcholinesterase Activation by N-Butanol
Made available in DSpace on 2014-12-11T18:05:35Z (GMT). No. of bitstreams: 1 7105209.pdf: 1621162 bytes, checksum: d3b13c80b3d596de51ae4224eff964cb (MD5) Previous issue date: 1970
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Redox-responsive polymers for the reversible extraction of butanol from water
… low molecular weight alcohols, like ethanol and butanol, for use as a biofuel has provided a new impetus to their production by the fermentation of polysaccharides, and the subsequent separation from the alcohols from the aqueous fermentation broth. The inhibitory nature of alcohols to their own …
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Acetone, Butanol, and Ethanol (ABE) Production from Food Waste via Clostridium beijerinckii
… Fermentation of food waste to produce acetone, butanol and ethanol (ABE) via fermentation has the potential to valorize food waste by producing value-added chemicals. However, the composition of food wastes from different sources vary, which affects ABE fermentation performance and hinders the …
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Technische, ökonomische und ökologische Bewertung der Einsetzbarkeit von biogenem n-Butanol im Raumwärmemarkt
… Arbeit wurde die Einsetzbarkeit von n-Butanol im Raumwärmemarkt unter technischen, ökonomischen sowie ökologischen Kriterien überprüft und den Brennstoffen Heizöl extra leichtflüssig (EL) und Biodiesel (FAME) gegenübergestellt. Das gewählte Vorgehen umfasst eine …
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A Novel Technique for the Separation of Dilute Butanol from Aqueous Fermentation Broths
Butanol is a promising biofuel which can be manufactured by fermentation. Irrespective of whether n-butanol or iso-butanol is produced, the alcohol is generally expressed at low concentrations (~1 wt%) in these fermentations. It also inhibits the organisms, and so removal of the butanol from the …
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A systems biology approach to understanding and improving butanol production in clostridium beijerinckii
… alternative to petroleum-based production of butanol—an important chemical feedstock and potential fuel additive or replacement. Clostridium beijerinckii is an attractive microorganism for butanol production because it (1) naturally produces the highest recorded butanol concentrations as a …
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Increasing fermentative butanol production in Clostridium beijerinckii using oxidized extracellular electron shuttling molecules
… interest in more sustainable energy options. Bio-butanol, produced during fermentation of plant biomass, is one possible alternative. However, yields for butanol fermentation are low making recovery difficult. Higher yields are needed to make butanol a competitive option for an alternative fuel …
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Production of acetone and butanol by Clostridium acetobutylicum using free and immobilized cells
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Nutrition and Food Science, 1982.
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Mathematical modeling of the acetone-butanol fermentation for the purposes of bioreactor design
The acetone-butanol fermentation by Clostridium acetobutylicum is receiving renewed interest as a process for large scale solvent production. The fermentation kinetics have been modeled as functions of substrate, butyrate, and butanol concentrations and pH. These models have been applied to …
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Investigation of Binary Mixtures of N-Butanol and Biodiesel in Reactive Control Compression Ignition
… obtained by port fuel injection (PFI) of n-butanol and direct injection (DI) of biodiesel was compared with an in cylinder directly injected blend of n-butanol and biodiesel with the same mass ratio of n-butanol to biodiesel which change with respect to load. The combustion and emission …
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Nitrogen metabolism and butanol production by South African clostridium beijerinckii and clostridium saccharobutylicum strains
The acetone- butanol-ethanol (ABE) fermentation was one of the first fermentation processes to be industrialized on a large scale, and the dominant product, butanol is particularly significant due to its potential as a modern day fuel additive or fuel extender in the petrochemical industry. A …
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Green Design of a Cellulosic Bio-butanol Supply Chain Network with Life Cycle Assessment
… fuel production and commercialization. Bio-butanol is a very promising renewable fuel for the future transportation market. Many efforts have been made to improve its production process, but seldom has bio-butanol research discussed the integration and optimization of a cellulosic …
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