文献类型：期刊文献

英文题名：Dry pretreatment of lignocellulose with extremely low steam and water usage for bioethanol production

作者：Zhang, Jian[1];Wang, Xiusheng[1];Chu, Deqiang[1];He, Yanqing[1];Bao, Jie[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2011

卷号：102

期号：6

起止页码：4480

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20110613654452);WOS:【SCI-EXPANDED(收录号:WOS:000288356300029)】；

基金：This research was supported by 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), and China National Special Funds and Open Project for the State Key Laboratory of Bioreactor Engineering (2060204).

语种：英文

外文关键词：Lignocellulose; Steam consumption reduction; Waste water generation; Feedstock filling ratio; Solids/liquid presoaking ratio

摘要：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.