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Showing 1 to 17 of 17 for “"Dry grind ethanol"”.
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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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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 …
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Decision Making in Dry-Grind Ethanol Industry Using Near-Infrared Spectroscopy
Calibration on the FT-NIR spectrometer for total soluble sugars predicted fermentation samples with a RMSEP of 0.87% w/v and RPD of 8.7. Total soluble sugar ranged from 0.4 to 22.2% w/v. Thus, in order to observe the effect of treatment on total soluble sugars, the difference between total soluble …
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Characterization of zein extracted from beer solids, a coproduct of dry-grind ethanol
… spreading and viability. Coproducts of corn-to-ethanol processing remain potential sources of zein. Distillers’ wet grains (DWG) a coproduct of dry grind ethanol contain about 40% (db) protein, where 50% of the protein is zein. Attempts to extract zein from coproducts have been limited to …
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Engineering economic analysis of the quick-germ/quick-fiber modified dry grind ethanol fractionation process
It has been widely debated whether producing ethanol from corn is sustainable in the long term. Environmentally, the major concern is that producing ethanol from corn involves intensive water and energy consumption. Economically, recent fluctuations in petroleum, ethanol, and corn prices have …
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Technical and economic viability of value added product recovery in the corn dry grind ethanol process
Although 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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"The Feasibility and Profitability of the ""Quick Germ"" Process for Ethanol Production From Corn"
… process proved profitable and retrofitting a dry-grind ethanol plant with a germ recovery facility was justified. The ""Quick Germ"" process has the potential to add $65 to 110 million/yr in added revenue for the dry-grind ethanol industry based on 16.57 million tonnes (652.7 million bu) …
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Production of Zein From Dry Milled Corn by Solvent Extraction and Ultrafiltration
… into any corn processing facility, especially dry-grind ethanol plants. The solvent extraction step involves only mixing and a filtration/centrifugation step. The filtered extract, after further treatment if necessary to improve protein purity, can be concentrated using solvent stable membranes …
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Development of a Controller for Fermentation in the Dry Grind Corn Process
… Optimal controller significantly improved 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 …
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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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Modeling the Fourier transform near infrared spectra of unreacted starch in corn for monitoring applications
The dry grind ethanol process is an important part of the renewable biofuels industry. In this process corn must be stored and used throughout the year. Corn quality changes, in terms of unreacted starch content, in the dry grind process have not been extensively studied, although they impact the …
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Use of treated effluent water in cellulosic ethanol production
The bioethanol industry exerts a significant demand on water supplies. Current water consumption rate in corn dry grind ethanol plants is 3 to 4 gallons of water per gallon of ethanol produced (gal/gal) and 6 to 10 gal/gal for cellulosic ethanol plants. The main goal of this study was to examine …
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Optimization of an integrated grain-biomass-ethanol supply chain with event-based decision-making
… an integrated approach to a grain-biomass-ethanol supply chain, with the purpose of reducing costs by adapting and expanding the current US corn system. Two modeling tools were applied to assess supply chain performance. First, BioGrain is a mixed-integer linear program that optimizes …
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Experimental and Modeling the Flow Properties of Distillers Dried Grains (DDG) with Varying Soluble Levels and Moisture Contents
… the non-fermentable corn residues obtained from dry grind ethanol processing. It is rich in proteins, fat, vitamins, and minerals. It is an excellent source of digestible protein for ruminants and non-ruminants. It is a valuable feed ingredient for livestock ration, improves the palatability and …
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Characterization of chemical composition, milling properties and carbon dioxide diffusivity resulting from early harvest corn and corn stover
… competition for feedstock between livestock and ethanol industries. Developing an effective corn harvesting, storage and utilization system can help reduce the competition for the limited corn supply in the current period. The overall goal of this study was to examine the feasibility of early …
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Utilization of Amino Acids in Corn Distillers Dried Grains With Solubles (Ddgs) by Pigs and Poultry and the Use of Reactive Lysine Procedures to Evaluate DDGS Quality
… vs. DDGS) and type of facility producing DDGS (ethanol plants vs. a beverage plant) on the standardized ileal digestibility (SID) of AA was investigated using ileal cannulated pigs. Results showed that SID of AA among DDGS sources within a region varies as much as DDGS sourced across regions. …
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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 …