期刊
BIORESOURCE TECHNOLOGY
卷 158, 期 -, 页码 294-299出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.02.016
关键词
Biofuels; Technoeconomic analysis; Acidolysis; Pretreatment; Ionic liquids
资金
- U.S. Department of Energy, Office of Science, Office of Biological and Environmental Research [DE-AC02-05CH11231]
- U.S. Department of Energy
- U.S. DOE, Energy Efficiency
- Renewable Energy Technology Commercialization Fund
- Statoil
Deconstruction of polysaccharides into fermentable sugars remains the key challenge in the production of inexpensive lignocellulosic biofuels. Typically, costly enzymatic saccharification of the pretreated biomass is used to depolymerize its cellulosic content into fermentable monomers. In this work, we examined the production of lignocellulosic recovery, a process that does not require the use of enzymes to produce fermentable sugars. In the base case, the minimum ethanol selling price (MESP) was $8.05/gal, but with improved performance of the hydrolysis, extraction, and sugar recovery, the MESP can be lowered to $4.00/gal. Additionally, two scenarios involving lignin recovery were considered. Although the results based on current assumptions indicate that this process is expensive compared to more established technologies, improvements in the hydrolysis yield, the sugar extraction efficiency, and the sugar recovery were shown to result in more competitive processes. (C) 2014 Elsevier Ltd. All rights reserved.
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