The study of the dilute acid pretreatment technology of corn stover and rice straw

被引：1
|
作者：
Shi, Yong [1 ]
Yan, Tao [1 ]
Wang, Yongze [1 ]
Zhao, Jinfang [1 ]
Zhou, Shengde [2 ]
机构：
[1] Hubei Univ Technol, Coll Bioengn, Wuhan 430068, Peoples R China
[2] Northern Illinois Univ, Dept Biol Sci, De Kalb, IL 60115 USA
来源：
ADVANCES IN CHEMICAL ENGINEERING II, PTS 1-4 | 2012年 / 550-553卷
关键词：
Straw; Ethanol; Dilute acid pretreatment;
D O I：
10.4028/www.scientific.net/AMR.550-553.480
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Ethanol production from lignocellulosic materials provides an alternative energy production system. Dilute sulfuric acid pretreatment of corn straw and rice straw and enzymatic hydrolysis of cellulose were investigated in this study. The straw was pretreated at 121 degrees C with different sulfuric acid concentrations (1, 2, 3, 4 and 5%, v/v) and residence times (30, 60, and 90 min). The concentration and conversion of total reducing sugars were analyzed. Pretreatment residence time play a key role in increase glucose concentration comparing to sulfuric acid concentration. Cellulose remaining in the pretreated feedstock was highly digestible by cellulases from Trichoderma viride. The result that the saccharification yield of 72.38% and 82.84% from corn straw and rice straw by using 2% (v/v) acid pretreatment at 121 degrees C for 60 min and saccharifying with cellulase preparations.
引用
收藏
页码：480 / +
页数：2
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