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题名: Acid in ionic liquid: An efficient system for hydrolysis of lignocellulose
作者: Li, Changzhi1, 2;  Wang, Qian1;  Zhao, Zongbao K.1
通讯作者: 赵宗保
刊名: GREEN CHEMISTRY
发表日期: 2008
DOI: 10.1039/b711512a
卷: 10, 期:2, 页:177-182
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1816
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
英文摘要: Acid in ionic liquid was demonstrated as an efficient system for hydrolysis of lignocellulosic materials with improved total reducing sugars (TRS) yield under mild conditions. TRS yields were up to 66%, 74%, 81% and 68% for hydrolysis of corn stalk, rice straw, pine wood and bagasse, respectively, in C(4)mimCl in the presence of 7 wt% hydrogen chloride at 100 degrees C under atmospheric pressure within 60 min. Different combinations between ionic liquids, such as C(6)mimCl, C(4)mimBr, AmimCl, C(4)mimHSO(4), and SbmimHSO(4), and acids, including sulfuric acid, nitric acid, phosphoric acid, as well as maleic acid, afforded similar results albeit longer reaction time was generally required comparing with the combination of C(4)mimCl and hydrochloric acid. FTIR spectra and elemental analysis of the recovered residues indicated that modification of lignin occurred during sulfuric acid catalyzed hydrolysis. In addition, kinetic modeling based on experimental data suggested that the hydrolysis likely followed a consecutive first-order reaction sequence, where k(1) and k(2), the rate constants for TRS formation and TRS degradation, were determined as 0.068 min(-1) and 0.007 min(-1), respectively. This novel system may be valuable to facilitate cost-efficient conversion of biomass into biofuels and biobased products.
关键词[WOS]: MUNICIPAL SOLID-WASTES ;  1-N-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE ;  BIOFUELS PRODUCTION ;  CORN STOVER ;  RICE STRAW ;  CELLULOSE ;  DISSOLUTION ;  ACETYLATION ;  SUGAR ;  SACCHARIFICATION
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000252860300007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99901
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Li, Changzhi,Wang, Qian,Zhao, Zongbao K.. Acid in ionic liquid: An efficient system for hydrolysis of lignocellulose[J]. GREEN CHEMISTRY,2008,10(2):177-182.
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