Effect of ionic liquid pretreatment on lignocellulosic biomass from oilseeds

被引：0

作者：

机构：

[1] School of Life Science and Biotechnology, Dalian University of Technology, Dalian 116024, Liaoning

[2] College of Life Science, Northeast Agricultural University, Harbin 150030, Heilongjiang

来源：

Liu, C. (cg_liu@dlut.edu.cn) | 1600年 / Materials China卷 / 64期

关键词：

Biofuel; Biomass; Ionic liquid; Lignocellulose; Oilseeds; Pretreatment;

D O I：

10.3969/j.issn.0438-1157.2013.z1.015

中图分类号：

学科分类号：

摘要：

In this study, three kinds of ionic liquid, including 1-butyl-3-methylimidazolium chloride ([Bmim]Cl), 1-butyl-3-methylimidazolium bromide ([Bmim]Br) and 1-octyl-3-methylimidazolium chloride ([Omim]Cl), were selected to pretreat the lignocellulosic parts of oilseeds: peanut husk, peanut straw and cole straw. The untreated and pretreated materials were investigated through the compositional, enzymatic hydrolysis and structural analysis. Among the untreated materials, peanut straw with the highest sugar yield 54.31% and the lowest lignin content was considered as the preferable substrate for biofuels production. After ionic liquid pretreatment, the effect of [Bmim]Cl on sugar yield was more significant, which lead to 85.43% sugar yield for peanut straw. The structural changes were also analyzed by scanning electron microscope (SEM) and Fourier transform-infrared (FT-IR). Among the raw materials, peanut straw's morphological structure was distinctive with broken surface, incompact structural and lower crystallinity. After pretreatment, all material turned to be more porous and rough than before. On the basis, the mechanism of lignocellulose's dissolution by ionic liquid with different cation and anion were also discussed. The results showed that the chlorine and [Bmim]+ were vital on the effect of ionic liquid pretreatment. © All Rights Reserved.

引用

页码：104 / 110

页数：6

共 27 条

[1]

Bai F.W., Anderson A.W., Moo-Young M., Ethanol fermentation technologies from sugar and starch feedstocks, Biotechnology Advances, 26, pp. 89-105, (2008)

[2]

Farrell A.E., Plevin R.J., Turner B.T., Jones A.D., O'Hare M., Kammen D.M., Ethanol can contribute to energy and environmental goals, Science, 311, pp. 506-508, (2006)

[3]

Service R.F., Biofuel researchers prepare to reap a new harvest, Science, 315, pp. 1488-1491, (2007)

[4]

Somerville C., Youngs H., Taylor C., Davis S.C., Long S.P., Feedstocks for lignocellulosic biofuels, Science, 329, pp. 790-792, (2010)

[5]

Cui M., Huang R., Su R., Qi W., Zhang Y., He Z., An overview on lignocellulose pretreatment and recalcitrant, CIESC Journal, 63, 2, pp. 677-687, (2012)

[6]

Himmel M., Ding S., Johnson D., Adney W., Nimlos M., Brady J., Et al., Biomass recalcitrance: Engineering plants and enzymes for biofuels production, Science, 315, pp. 804-807, (2007)

[7]

Vancov T., Alston A.S., Brown T., Mcintosh S., Use of ionic liquids in converting lignocellulosic material to biofuels, Renewable Energy, 45, pp. 1-6, (2012)

[8]

Swatloski R.P., Spear S.K., Holbrey J.D., Rogers R.D., Dissolution of cellulose with ionic liquids, Journal of the American Chemical Society, 124, pp. 4974-4975, (2002)

[9]

Brandt A., Grasvik J., Hallett J.P., Welton T., Deconstruction of lignocellulosic biomass with ionic liquids, Green Chemistry, 15, 3, (2013)

[10]

Shill K., Padmanabhan S., Xin Q., Prausnitz J.M., Clark D.S., Blanch H.W., Ionic liquid pretreatment of cellulosic biomass: Enzymatic hydrolysis and ionic liquid recycle, Biotechnol. Bioeng., 108, pp. 511-520, (2011)

← 1 2 3 →