Title |
Impact of pretreatment and downstream processing technologies on economics and energy in cellulosic ethanol production
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Published in |
Biotechnology for Biofuels and Bioproducts, September 2011
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DOI | 10.1186/1754-6834-4-27 |
Pubmed ID | |
Authors |
Deepak Kumar, Ganti S Murthy |
Abstract |
While advantages of biofuel have been widely reported, studies also highlight the challenges in large scale production of biofuel. Cost of ethanol and process energy use in cellulosic ethanol plants are dependent on technologies used for conversion of feedstock. Process modeling can aid in identifying techno-economic bottlenecks in a production process. A comprehensive techno-economic analysis was performed for conversion of cellulosic feedstock to ethanol using some of the common pretreatment technologies: dilute acid, dilute alkali, hot water and steam explosion. Detailed process models incorporating feedstock handling, pretreatment, simultaneous saccharification and co-fermentation, ethanol recovery and downstream processing were developed using SuperPro Designer. Tall Fescue (Festuca arundinacea Schreb) was used as a model feedstock. |
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