Dilute acid pretreatment of paulownia for bioethanol production

被引：0

作者：

Cheng, Jia-Qi ^{[1
]}

Chen, Yuan-Cai ^{[1
]}

Cheng, Jay J. ^{[2
]}

机构：

[1] State Key Laboratory of Pulp and Paper Engineering, South China University of Technology

[2] Biological and Agricultural Engineering Dept., North Carolina State University, Raleigh

来源：

Chemistry and Industry of Forest Products | 2013年 / 33卷 / 03期

关键词：

Bioethanol; Cellulases; Dilute acid pretreatment; Paulownia;

D O I：

10.3969/j.issn.0253-2417.2013.03.021

中图分类号：

学科分类号：

摘要：

Dilute sulfuric acid pretreatment of paulownia before cellulose enzymatic hydrolysis was investigated. The biomass with a 10% solid loading rate was pretreated at 121°C by dilute sulfuric acid with different concentrations (0.5%, 1.0%, 1.5% and 2.0%) for 30, 60 and 90 min. The concentrations of the total reducing sugars, monosaccharides and inhibitors (e.g. furfural and HMF(5-hydroxymethylfurfural)) in the pre-hydrolyzate were analyzed to obtain the optimum acid hydrolysis condition that did not affecting the flowing enzymatic hydrolysis. The total reducing sugar yield was about 82% of the theoretical maximum value, and the conversion efficiencies for glucan and xylan were 39.5% and 48.7%, respectively, when the biomass was pretreated by 1.5% sulfuric acid for 60 min.

引用

页码：110 / 114

页数：4

共 12 条

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