Degradation of four non-lignin components in corn stover by pretreatment of dilute sulfuric acid

被引：0

作者：

Jiang, Fa-Xian ^{[1
,2
,3
]}

Xu, Yong ^{[1
,2
,3
]}

Zhu, Jun-Jun ^{[1
,2
]}

Yong, Qiang ^{[1
,2
]}

Yu, Shi-Yuan ^{[1
,2
]}

机构：

[1] College of Chemical Engineering, Nanjing Forestry University, Nanjing

[2] Key Laboratory of Forest Genetics and Biotechnology, Ministry of Education, Nanjing

[3] Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, Nanjing

来源：

Chemistry and Industry of Forest Products | 2015年 / 35卷 / 02期

关键词：

Corn stover; Degradation reaction; Dilute sulfuric acid pretreatment; Non-lignin constituents; Profiles of degradation chemicals;

D O I：

10.3969/j.issn.0253-2417.2015.02.006

中图分类号：

学科分类号：

摘要：

Four main non-lignin constituents in corn stover, including cellulose, hemicellulose, hot water extractives, and ethanol extractives, were prepared and pretreated with dilute sulfuric acid, respectively. Their water soluble degradation products profiles were analyzed by high performance liquid chromatography detection. During dilute sulfuric acid pretreatment, glucose, formic acid (FA), levulinic acid (LA), and 5-hydroxymethylfurfural (HMF) were released from cellulose degradation. Xylose, arabinose, glucuronic acid, galacturonic acid, acetic acid (AA), and furfural were released from hemicellulose degradation. The hot water extractives degradation produced glucose, xylose, arabinose, FA, AA, LA, HMF, and furfural, and only trace of glucose, xylose, AA, LA, and HMF were found in the hydrolyzates of ethanol extractives. Totally, FA, LA, and HMF mainly originated from cellulose degradation at the yields of 1.4%, 2.7%, and 2.2%, while AA and furfural came from hemicellulose degradation at the yields of 3.1% and 7.8% on the basis of corn stove weight, respectively. Orthogonal tests showed that the AA production was significantly affected by the concentration of sulfuric acid, while the FA, LA, HMF, and furfural formations were seriously affected by the pretreatment temperature. ©, 2015, Edited & Published by Editorial Board of «Chemistry and Industry of Forest Products». All right reserved.

引用

页码：38 / 46

页数：8

共 29 条

[1]

Galbe M., Zacchi G., Pretreatment: The key to efficient utilization of lignocellulosic materials, Biomass and Bioenergy, 46, pp. 70-78, (2012)

[2]

Lloyd T.A., Wyman C.E., Combined sugar yields for dilute sulfuric acid pretreatment of corn stover followed by enzymatic hydrolysis of the remaining solids, Bioresource Technology, 96, 18, pp. 1967-1977, (2005)

[3]

Abatzoglou N., Koeberle P.G., Chornet E., Et al., Dilute acid hydrolysis of lignocellulosics: An application to medium consistency suspensions of hardwoods using a plug flow reactor, The Canadian Journal of Chemical Engineering, 68, 4, pp. 627-638, (1990)

[4]

Mosier N., Wyman C., Dale B., Et al., Features of promising technologies for pretreatment of lignocellulosic biomass, Bioresource Technology, 96, 6, pp. 673-686, (2005)

[5]

Sun Y., Cheng J.-Y., Hydrolysis of lignocellulosic materials for ethanol production: A review, Bioresource Technology, 83, 1, pp. 1-11, (2002)

[6]

Von Sivers M., Zacchi G., A techno-economical comparison of three processes for the production of ethanol from pine, Bioresource Technology, 51, 1, pp. 43-52, (1995)

[7]

Palmqvist E., Hahn-HAgerdal B., Fermentation of lignocellulosic hydrolysates. II: Inhibitors and mechanisms of inhibition, Bioresource Technology, 74, 1, pp. 25-33, (2000)

[8]

Wyman C.E., Ethanol from lignocellulosic biomass: Technology, economics, and opportunities, Bioresource Technology, 50, 1, pp. 3-15, (1994)

[9]

Xu F., Sun J.-X., Sun R.-C., Et al., Comparative study of organosolv lignins from wheat straw, Industrial Crops and Products, 23, 2, pp. 180-193, (2006)

[10]

Jiang G.-Z., Nowakowski D.J., Bridgwater A.V., A systematic study of the kinetics of lignin pyrolysis, Thermochimica Acta, 498, 1-2, pp. 61-66, (2010)

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