DICP OpenIR
Acid in ionic liquid: An efficient system for hydrolysis of lignocellulose
Li, Changzhi1,2; Wang, Qian1; Zhao, Zongbao K.1; Zhao ZB(赵宗保); Zhao ZB(赵宗保)
Source PublicationGREEN CHEMISTRY
2008
DOI10.1039/b711512a
Volume10Issue:2Pages:177-182
Indexed BySCI
SubtypeArticle
Department18
Funding Project1816
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordMUNICIPAL SOLID-WASTES ; 1-N-BUTYL-3-METHYLIMIDAZOLIUM CHLORIDE ; BIOFUELS PRODUCTION ; CORN STOVER ; RICE STRAW ; CELLULOSE ; DISSOLUTION ; ACETYLATION ; SUGAR ; SACCHARIFICATION
AbstractAcid 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.
Language英语
URL查看原文
WOS IDWOS:000252860300007
Citation statistics
Cited Times:323[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/99901
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhao ZB(赵宗保); Zhao ZB(赵宗保)
Affiliation1.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
GB/T 7714
Li, Changzhi,Wang, Qian,Zhao, Zongbao K.,et al. Acid in ionic liquid: An efficient system for hydrolysis of lignocellulose[J]. GREEN CHEMISTRY,2008,10(2):177-182.
APA Li, Changzhi,Wang, Qian,Zhao, Zongbao K.,赵宗保,&赵宗保.(2008).Acid in ionic liquid: An efficient system for hydrolysis of lignocellulose.GREEN CHEMISTRY,10(2),177-182.
MLA Li, Changzhi,et al."Acid in ionic liquid: An efficient system for hydrolysis of lignocellulose".GREEN CHEMISTRY 10.2(2008):177-182.
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