Fuel ethanol liquefaction

Regardless of the fuel ethanol process, the starch is gelatinized in preparation for liquefaction or incubation with thermoresistant a-amylase (Sears 1995). Next, the liquefied mash is treated simultaneously with amyloglucosidase and yeast to convert dextrins into fermentable carbohydrates and, later on, convert these carbohydrates into ethanol (Figure 14.8). After 2 days of fermentation, the beer is distilled to obtain ethanol with 5% to 10% water. The rest of the water is removed via azeotropic... 

Liquefaction, starch Name of the enzymatic process in which a starch slurry is treated with a-amylase. During the reactions, the viscosity of the gelatinized starch slurry significantly decreases due to the conversion of large starch molecules into dextrins. Starch liquefaction is critically important in the production of syrups, sweeteners, and fuel ethanol. 

Liquefaction. Siace the 1970s attempts have been made to commercialize biomass pyrolysis for combiaed waste disposal—Hquid fuels production. None of these plants were ia use ia 1992 because of operating difficulties and economic factors only one type of biomass Hquefaction process, alcohohc fermentation for ethanol, is used commercially for the production of Hquid fuels. 

DCL DDGS DEFC DICI DISI DME DMFC DOE DP DPF Direct coal liquefaction Distillers dried grains with solubles Direct ethanol fuel cell Direct-injection compression ignition Direct-injection spark ignition Dimethylether Direct methanol fuel cell Department of Energy (USA) Dynamic programming Diesel particulate filter... 

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