Optimization of H2SO4-catalyzed hydrothermal pretreatment of rapeseed straw for bioconversion to ethanol: Focusing on pretreatment at high solids content

被引：148

作者：

Lu, Xuebin ^{[1
,2
]}

Zhang, Yimin ^{[1
]}

Angelidaki, Irini ^{[2
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China

[2] Tech Univ Denmark, Dept Environm Engn, DK-2800 Lyngby, Denmark

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 12期

关键词：

Hydrothermal pretreatment; H2SO4; Rapeseed straw; Bioethanol; LIQUID HOT-WATER; ENZYMATIC-HYDROLYSIS; CORN STOVER; SIMULTANEOUS SACCHARIFICATION; FERMENTATION INHIBITORS; FUEL-ETHANOL; BIOMASS; TEMPERATURE; CONVERSION; BATCH;

D O I：

10.1016/j.biortech.2009.01.008

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

A central composite design of response surface method was used to optimize H2SO4-catalyzed hydrothermal pretreatment of rapeseed straw, in respect to acid concentration (0.5-2%), treatment time (5-20 min) and solid content (10-20%) at 180 degrees C. Enzymatic hydrolysis and fermentation were also measured to evaluate the optimal pretreatment conditions for maximizing ethanol production. The results showed that acid concentration and treatment time were more significant than solid content for optimization of xylose release and cellulose recovery. Pretreatment with 1% sulfuric acid and 20% solid content for 10 min at 180 degrees C was found to be the most optimal condition for pretreatment of rapeseed straw for ethanol production. After pretreatment at the optimal condition and enzymatic hydrolysis, 75.12% total xylan and 63.17% total glucan were converted to xylose and glucose, respectively. Finally, 66.79% of theoretical ethanol yielded after fermentation. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：3048 / 3053

页数：6

共 37 条

[1]

Angelidaki I., 2007, AD 11 C AUSTR 22 SEP

[2]

[Anonymous], CHEM AN TEST LAB AN

[3] Ethanol from lignocellulosic materials by a simultaneous saccharification and fermentation process (SFS) with Kluyveromyces marxianus CECT 10875 [J].

Ballesteros, M ;

Oliva, JM ;

Negro, MJ ;

Manzanares, P ;

Ballesteros, I .

PROCESS BIOCHEMISTRY, 2004, 39 (12) :1843-1848

[4] Biotechnological processes for conversion of corn into ethanol [J].

Bothast, RJ ;

Schlicher, MA .

APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 2005, 67 (01) :19-25

[5] Influence of solid loading on enzymatic hydrolysis of steam exploded or liquid hot water pretreated olive tree biomass [J].

Cara, Cristbal ;

Moya, Manuel ;

Ballesteros, Ignacio ;

Negro, Ma Jose ;

Gonzalez, Alberto ;

Ruiz, Encarnacion .

PROCESS BIOCHEMISTRY, 2007, 42 (06) :1003-1009

[6] Liquid hot water pretreatment of olive tree pruning residues [J].

Cara, Cristobal ;

Romero, Inmaculada ;

Miguel Oliva, Jose ;

Saez, Felicia ;

Castro, Eulogio .

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY, 2007, 137 (1-12) :379-394

[7] Fermentation of molasses by Zymomonas mobilis:: Effects of temperature and sugar concentration on ethanol production [J].

Cazetta, M. L. ;

Celligoi, M. A. P. C. ;

Buzato, J. B. ;

Scarminio, I. S. .

BIORESOURCE TECHNOLOGY, 2007, 98 (15) :2824-2828

[8] Detoxification of sugarcane bagasse hydrolysate improves ethanol production by Candida shehatae NCIM 3501 [J].

Chandel, Anuj Kumar ;

Kapoor, Rajeev Kumar ;

Singh, Ajay ;

Kuhad, Ramesh Chander .

BIORESOURCE TECHNOLOGY, 2007, 98 (10) :1947-1950

[9] Batch and continuous biohydrogen production from starch hydrolysate by Clostridium species [J].

Chen, Shiny-Der ;

Lee, Kuo-Shing ;

Lo, Yung-Chung ;

Chen, Wen-Ming ;

Wu, Ji-Fany ;

Lin, Chiu-Yue ;

Chang, Jo-Shu .

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2008, 33 (07) :1803-1812

[10] Evaluation of wheat stillage for ethanol production by recombinant Zymomonas mobilis [J].

Davis, L ;

Jeon, YJ ;

Svenson, C ;

Rogers, P ;

Pearce, J ;

Peiris, P .

BIOMASS & BIOENERGY, 2005, 29 (01) :49-59

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