Process for the reutilization of yeast biomass, with separation of solids prior to distillation and recovery of ethanol from wet cake, in the integration of alcoholic fermentations of sugarcane and amylaceous substrates and/or for amylaceous-dedicated distilleries
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United States of America Patent
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Mar 16, 2021
Grant Date -
Jan 31, 2019
app pub date -
Mar 23, 2018
filing date -
Jul 31, 2017
priority date (Note) -
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Abstract
A process that provides for the reuse of yeast biomass used in the alcoholic fermentation of both sugarcane and corn in independent or integrated processes with steps of separation and reuse of solids prior to distillation and which are used in the process itself and in other industrial applications such as the production of high protein content (DDG/DDGS) ration, due to the alcohol recovery of the process, biodiesel, cell wall and yeast extract, as well as energy generation. The process also includes a drying step using indirect contact dryers operating with low pressure, non-noble vapors, such as plant vapor and exhaust vapor, and with the recovery of the ethanol contained in the wet cake.
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