期刊
BIORESOURCE TECHNOLOGY
卷 102, 期 6, 页码 4480-4488出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2011.01.005
关键词
Lignocellulose; Steam consumption reduction; Waste water generation; Feedstock filling ratio; Solids/liquid presoaking ratio
资金
- National Basic Research Program of China [2011CB707406]
- Natural Science Foundation of China [20976051]
- Ministry of Education of China [20090074110013]
- Shanghai Leading Academic Discipline Project [B505]
- Fundamental Research Funds for the Central Universities of China [WF0913005]
- China National Special Funds and Open Project for the State Key Laboratory of Bioreactor Engineering [2060204]
Two rarely noticed but important parameters of the dilute sulfuric acid pretreatment of lignocellulose biomass, the feedstock filling ratio to the pretreatment reactor and the solids/liquid presoaking ratio, were extensively studied. The effects of the two parameters on the steam consumption, waste water generation, and pretreatment efficiency were investigated. At the full filling ratio and high solids/liquid presoaking ratio, this dry pretreatment method provided at least the following advantages: (1) the steam consumption was significantly reduced: (2) no aqueous acid containing waste water was generated; (3) high solids content of the pretreated materials were obtained and the consequent saccharification and fermentation was carried out at high solids loading easily. This method was applied to various lignocellulose feedstocks successfully and provided a practical means to produce ethanol economically feasible. (C) 2011 Elsevier Ltd. All rights reserved.
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