期刊
ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
卷 29, 期 2, 页码 163-174出版社
WILEY-BLACKWELL
DOI: 10.1002/ep.10445
关键词
biomass; economics; ethanol; entrained; gasification; slagging
类别
资金
- U.S. Department of Energy's Office of the Biomass Program
This techno-economic study investigates the production of mixed alcohols from lignocellulosic biomass using an entrained,flow slagging gasifier Similar analyses for 2000 dry tonne per day plants have been performed at the National Renewable Energy Laboratory using indirect, and direct dry ash gasifiers. The use of a high-temperature entrained flow gasifier differs from the previous studies because it eliminates equipment for tar and methane reformation. The conversion targets for tar reforming in the previous studies, and for alcohol synthesis in all of the studies, are based on DOE's research goals for 2012. The conversion cost increased compared to both of the previous studies, assuming the achievement of the 2012 research targets. Feed handling, high oxygen demand, and a high gasifier capital cost are primarily responsible for the high cost projected by this study. It is understood that the achievement of research targets, maturity, reliability, relative complexities, and redundancy requirements will be the other keys to commercialization. The effect of key assumptions and uncertainties were evaluated using sensitivity analysis. (C) 2010 American Institute of Chemical Engineers Environ Prog, 29: 163-174, 2010
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