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Renewable Energy -Ethanol Production Process There are two types of ethanol, denatured alcohol and absolute ethanol. Ethanol is produced both as a petrochemical, through the hydration of ethylene, and biologically, by fermenting sugars with yeast. |
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| The basic steps for large scale production of ethanol are: microbial (yeast) fermentation of sugars, distillation, dehydration (required unless distillation is done well and/or repeatedly), and denaturing (optional). | |
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Prior to fermentation, some crops require saccharification or hydrolysis into carbohydrates. Saccharification of cellulose is called cellulolysis (see cellulosic ethanol). Other pre-production steps can be necessary for certain crops like corn which requires refinment into starch and liquification. |
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| General Production Process for Fuel Ethanol | |
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Source:
http://www.newenergy.org.cn/html/2006-2/2006223_7705.html Translated by Benny Xia |
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All Designed by Benny Xia Best viewed at 800x600 resolution |
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