Liquid hot water pretreatment on different parts of cotton stalk to facilitate ethanol production

被引：51

作者：

Jiang, Wei ^{[1
,2
]}

Chang, Senlin ^{[1
,2
]}

Li, Hongqiang ^{[1
]}

Oleskowicz-Popiel, Piotr ^{[3
]}

Xu, Jian ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[3] Poznan Univ Tech, Fac Civil & Environm Engn, Inst Environm Engn, PL-60965 Poznan, Poland

来源：

BIORESOURCE TECHNOLOGY | 2015年 / 176卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

Cotton stalk; Liquid hot water pretreatment; Simultaneous saccharification and fermentation; Bioethanol; Energy input; CORN STOVER; LIGNOCELLULOSIC BIOMASS; BIOETHANOL PRODUCTION; WHEAT-STRAW; FERMENTATION; HYDROLYSIS; INHIBITION; HEMICELLULOSE; OPTIMIZATION; CONVERSION;

D O I：

10.1016/j.biortech.2014.11.023

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

To investigate pretreatment demand for different parts of biomass, cotton stalk was separated into stem, branch and boll shell, which were treated by liquid hot water pretreatment (LHWP) with severity from 2.77 to 4.42. Based on weight loss (WL, w/w) mainly caused by hemicellulose removal, it was found that boll shell (WL, 46.93%) was more sensitive to LHWP than stem (WL, 38.85%). Although ethanol yield of 18.3, 16.27 and 21.08 g/100 g was achieved from stem, branch and boll shell with pretreatment severity at 4.42, ratio of ethanol yield to pretreatment energy input for particular parts was different. For boll shell and branch, the maximum ratio of ethanol yield to energy input were 1.37 and 1.33 g ethanol kJ(-1) with severity at 4.34, while it was 1.20 for stem at 3.66. This indicates that different pretreatment demands for different parts of plants should be considered in order to save pretreatment energy input. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：175 / 180

页数：6

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