Ethanol, fermentation

Manufactured by the liquid-phase oxidation of ethanal at 60 C by oxygen or air under pressure in the presence of manganese(ii) ethanoate, the latter preventing the formation of perelhanoic acid. Another important route is the liquid-phase oxidation of butane by air at 50 atm. and 150-250 C in the presence of a metal ethanoate. Some ethanoic acid is produced by the catalytic oxidation of ethanol. Fermentation processes are used only for the production of vinegar. [Pg.164]

U.S. capacity for producing biofuels manufactured by biological or thermal conversion of biomass must be dramatically increased to approach the potential contributions based on biomass availabiUty. For example, an incremental EJ per year of methane requires about 210 times the biological methane production capacity that now exists, and an incremental EJ per year of fuel ethanol requires about 14 times existing ethanol fermentation plant capacity. [Pg.13]

A more abundantiy produced substance is ethanol for use in alcohoHc beverages, and as a fuel, solvent, and feedstock for organic syntheses. Ethanol (qv) production from sucrose is carried out in Europe (eg, France and the Netherlands), India, Pakistan, China, and on a very large scale in Brazil, where it is used as a motor fuel. A valuable by-product of ethanol fermentation is industrial CO2 (see Carbon dioxide). [Pg.6]

Ethanol fermentation is a particularly good example of product accumulation inhibiting the microbial culture. Most strains of yeast have a much slower alcohol production rate when ethanol reaches about ten percent, and the wine or said strains that achieve over 20 percent by volume of ethanol are very, very slow. A system known as the Vacuferm for removal of alcohol by distillation as it is formed is... [Pg.2136]

BIOCHEMICAL ENGINEERING TABLE 24-2 Comparison of Ethanol Fermenters... [Pg.2138]

Chemical Designations - Synonyms-. Alcohol Cologne spirit Denatured alcohol Ethanol Fermentation alcohol Grain alcohol Spirit Spirits of wine Chemical Formula CjHjOH. Observable Characteristics - Physical State (as normally shipped) Liquid Color Colorless Odor. Mild, pleasant Like wine or whiskey. (Denatured alcohol may be unpleasant). [Pg.158]

Alcoholic (ethanolic) fermentation A fermentation in which the major products are carbon dioxide and ethanol (alcohol). [Pg.899]

The ethanol fermentation from sugar is simplified based on the following reaction ... [Pg.91]

For instance the theoretical yield of ethanol fermentation based on fermentation of glucose results in two moles of ethanol ... [Pg.92]

CASE STUDY ETHANOL FERMENTATION IN AN IMMOBILISED CELL REACTOR USING SACCHAROMYCES CEREVISIAE... [Pg.206]

Keywords immobilised cell reactor (ICR) Saccharomyces cerevisiae ethanol fermentation encapsulated beads calcium alginate... [Pg.207]

Gunasekaran, P. and Raj, K.C., 2001. Ethanol fermentation technology - Zymomonas mobilis, httn //ces.iisc.ernet.in/curscinew/iulvl0/articlesl4.htm. [Pg.222]

Najafpour, G.D., Younesi, H. and Ku Ismail, K.S., Ethanol Fermentation in Immobilized Cell Reactor (ICR) Using Saccharomyces cerevisiae , Bioresource Technology, vol. 92/3, 2004, pp. 251-260. [Pg.222]

Table 10.2. Data sheet for continuous ethanol fermentation, experimental run 2, S0=35g/l...

Bravo, P., and Gonzalez, G., Continuous Ethanol Fermentation by Immobilized Yeast Cells in a Fluidized-Bed Reactor, J. Chem. Tech. Biotechnol., 52 127 (1991)... [Pg.665]

Weng, D., Cheng,. L., Han, Y., Zhu, W., Xu, S., and Ouyang, F., Continuous Ethanol Fermentation in a Three-Phase Magnetic Fluidized Bed Bioreactor, AIChE Symp. Series, 88(289) 107, AIChE, New York (1992)... [Pg.681]

Cellulosic hollow fibers, 16 18-20 Cellulosic materials, in ethanol fermentation, 10 535—536 Cellulosic membranes, in hemodialysis,... [Pg.157]

Star-branched butyl rubber, 4 437-438 copolymers, 4 445-446 Starch(es), 4 703-704, 20 452-453 as blood substitute, 4 111-112 cationic, 18 114-115 in cereal grains, 26 271-274 in cocoa shell from roasted beans, 6 357t compression effects in centrifuges, 5 513 depolymerization, 4 712 in ethanol fermentation, 10 534—535 etherified, 20 563 as a flocculant, 11 627 high-amylose, 26 288 Mark-Houwink parameters for, 20 558t modified and unmodified, 12 52-53 in paper manufacture, 18 122-123 performance criteria in cosmetic use, 7 860t... [Pg.882]

Process Biochem., 41, 1682 (2006). Evaluation of Optimization Techniques for Parameter Estimation Application to Ethanol Fermentation Considering the Effect of Temperature. [Pg.388]

A trivial yet important application is following ethanol production via a bioprocess. Sivakesava et al.1 simultaneously measured glucose, ethanol, and the optical cell density of Saccharomyces cerevisiae during ethanol fermentation, using an off-line approach. Samples were brought to an instrument located near the fermentation tanks and the measurements made in short order. While they eventually used MIR due to the interfering scatter of the media, they proved that Raman could be used for this application. [Pg.385]

Unlike starch, which is amorphous, cellulose is fermented with difficulty because of its semicrystalline structure. As a consequence, ethanol fermented from cellulose using the latest generation enzymes would still be more expensive... [Pg.210]

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