文献类型：期刊文献

英文题名：Dry dilute acid pretreatment by co-currently feeding of corn stover feedstock and dilute acid solution without impregnation

作者：He, Yanqing[1];Zhang, Jian[1];Bao, Jie[1]

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

年份：2014

卷号：158

起止页码：360

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20141717633978);WOS:【SCI-EXPANDED(收录号:WOS:000334830300051)】；

语种：英文

外文关键词：Dry dilute acid pretreatment (DDAP); Corn stover; Impregnation; Helical agitation; Pretreatment efficiency

摘要：Impregnation of lignocellulose materials with dilute acid solution is a routine operation in conventional dilute acid pretreatment. The dry dilute acid pretreatment (DDAP) at high solids content up to 70% is naturally considered to require longer impregnation time. In this study, a co-currently feeding operation of corn stover and dilute sulfuric acid solution without any impregnation was tested for DDAP. The DDAP pretreated corn stover without impregnation is found to be essentially no difference in pretreatment efficiency compared to those with impregnation in the helically agitated reactor. The yield from cellulose to ethanol in SSF again shows no obvious difference between the DDAP pretreated corn stover with and without impregnation. This study suggests that impregnation in DDAP was not necessary under the helical agitation mixing. The results provided a useful way of cost reduction and process simplification in pretreatment. (C) 2014 Elsevier Ltd. All rights reserved.