期刊
CURRENT OPINION IN BIOTECHNOLOGY
卷 45, 期 -, 页码 202-211出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.copbio.2017.03.008
关键词
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资金
- US Department of Energy Office of Biological and Environmental Research through the Bioenergy Science Center [DE-AC05-00OR22725]
- Bioenergy Technology Office (BETO) of the Office of Energy Efficiency and Renewable Energy of the U.S. Department of Energy [DE-AC02-06CH11357]
Although the purchase price of cellulosic feedstocks is competitive with petroleum on an energy basis, the cost of lignocellulose conversion to ethanol using today's technology is high. Cost reductions can be pursued via either in-paradigm or new-paradigm innovation. As an example of new-paradigm innovation, consolidated bioprocessing using thermophilic bacteria combined with milling during fermentation (cotreatment) is analyzed. Acknowledging the nascent state of this approach, our analysis indicates potential for radically improved cost competitiveness and feasibility at smaller scale compared to current technology, arising from (a) R&D-driven advances (consolidated bioprocessing with cotreatment in lieu of thermochemical pretreatment and added fungal cellulase), and (b) configurational changes (fuel pellet coproduction instead of electricity, gas boiler(s) in lieu of a solid fuel boiler).
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