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Showing 1 to 9 of 9 for “"Conventional dry grind"”.
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Increasing dry grind ethanol yield through fiber pretreatment after liquefaction
… and fiber in corn grain are 72 and 10% on a dry basis (db), respectively. In the conventional dry grind process, starch is converted to ethanol; whereas, corn fiber remains unconverted. Corn fiber contains 12 to 18% cellulose and 11 to 23% starch which can be hydrolyzed and fermented into …
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Engineering economic analysis of the quick-germ/quick-fiber modified dry grind ethanol fractionation process
… of corn-to-ethanol production, several modified dry grind processes had been developed at the lab scale. The Quick-germ / Quick-fiber (QQ) process is one of them. However, there has been no analysis of the QQ process that provides detailed information related to the energy, water, and economic …
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Development of a Controller for Fermentation in the Dry Grind Corn Process
… final ethanol concentrations as compared to the conventional process without optimal controller under conditions of temperature and pH disturbances. Use of the optimal controller in conventional dry grind ethanol processes can result in estimated cost savings up to $1 million for a 151 million …
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Technical and economic viability of value added product recovery in the corn dry grind ethanol process
… ethanol is the primary product of the corn dry grind ethanol process, other coproducts in the dry grind process also contribute to sustainability. However, low coproduct value is responsible for high dependence of plant profitability on ethanol revenue. Improving coproduct value and …
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Characterization of amylose lipid complexes and their effect on the corn dry grind process
The dry grind process is the most commonly used method for production of corn ethanol. Ethanol from corn is the biggest contributor to bioethanol produced in the US. In this study, effects of different parameters such as liquefaction temperature, solids content and particle size on formation of …
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Comparison of fermentation characteristics between colored corn and yellow dent corn using two dry grind process methods
In dry grind ethanol plant, distillers dried grains with solubles (DDGS) is the primary coproduct which is used mainly in ruminant animal diets. Increasing market demand for coproduct in dry grind process is needed. One way is to use corn rich in anthocyanin content as feedstock. Anthocyanin …
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Factors Affecting Starch Conversion to Ethanol in Dry Grind Corn Process
… ethanol concentration and corn starch content in dry grind corn process. Effect of amylose:amylopectin ratios and resistant starch in corn starch on ethanol concentration was evaluated with four enzyme treatments operating at varying temperature and pH liquefaction conditions. Final ethanol …
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Enzymatic and process technologies to increase corn dry grind slurry solids
In conventional dry grind process, high glucose concentrations (>15% w/w) and liquefaction viscosities restrict slurry solids contents to 30 to 32% w/w. High slurry solids fermentations (above 33%) are important in reducing energy costs; decreased water input results in less evaporation, …
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Effects of corn quality and storage on dry grind ethanol production
Corn dry grind industry is the major contributor of ethanol production in the US. Ethanol plants incur economic losses due to seasonal variations in ethanol yields. Ethanol yields typically are low during the first month after harvest, increase for the next six to seven months and decrease again …