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Thermochemical integration key to improving the efficiency of bio-ethanol production

Post, May 16, 2011 • A recently concluded CRF study as revealed the important role of combustion in the efficient operation of cellulosic ethanol plants for producing  biofuels. Unlike ‘first-generation’ ethanol derived from the fermentation of sugar or starch sources (such as corn), future production of ethanol in the United States is expected (and indeed...
Figure 2. Schematic of the modeled, prototypical lignocellulosic biochemical ethanol plant utilizing separate enzymatic hydrolysis and fermentation steps.|Figure 1. Typical composition of a softwood tree, in this case hybrid poplar.|Figure 3. Energy inputs and outputs (on the basis of lower heating value, left pie chart) and exergy inputs and outputs (right pie chart) for the conventional technology biochemical process design case.