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Kinetic studies on chromium-catalyzed conversion of glucose into 5-hydroxymethylfurfural in alkylimidazolium chloride ionic liquid
Alternative TitleChem. Eng. J.
Zhang, Jian1,2; Cao, Yan2; Li, Huiquan2; Ma, Xinbin1
2014-02-01
Source PublicationCHEMICAL ENGINEERING JOURNAL
ISSN1385-8947
Volume237Issue:1Pages:55-61
Abstract5-Hydroxymethylfurfural (HMF) is a promising green platform chemical derived from biomass. Kinetic studies were performed on chromium chloride-catalyzed conversion of glucose into HMF in alkylimidazolium chloride ionic liquids. The main by-products are disaccharides, fructose, glyceraldehyde, formic acid, and humins. The formation of HMF is strongly affected by reaction temperature and initial glucose concentration. The reaction is second order in glucose, with an activation energy of 134.9 kJ mol(-1). The order in chromium is first, indicating that the rate-determining isomerization reaction is catalyzed by a mononuclear chromium species. The observed glucose conversion rate constant decreases as initial glucose concentration increases, suggesting that the catalytic activity of the chloride anion is significantly restrained by the hydrogen bonding with hydroxyl groups. A simplified kinetic model is developed to describe the behaviors of glucose conversion and HMF formation. This model is in good agreement with the experimental results. (C) 2013 Elsevier B.V. All rights reserved.; 5-Hydroxymethylfurfural (HMF) is a promising green platform chemical derived from biomass. Kinetic studies were performed on chromium chloride-catalyzed conversion of glucose into HMF in alkylimidazolium chloride ionic liquids. The main by-products are disaccharides, fructose, glyceraldehyde, formic acid, and humins. The formation of HMF is strongly affected by reaction temperature and initial glucose concentration. The reaction is second order in glucose, with an activation energy of 134.9 kJ mol(-1). The order in chromium is first, indicating that the rate-determining isomerization reaction is catalyzed by a mononuclear chromium species. The observed glucose conversion rate constant decreases as initial glucose concentration increases, suggesting that the catalytic activity of the chloride anion is significantly restrained by the hydrogen bonding with hydroxyl groups. A simplified kinetic model is developed to describe the behaviors of glucose conversion and HMF formation. This model is in good agreement with the experimental results. (C) 2013 Elsevier B.V. All rights reserved.
KeywordKinetic Study 5-hydroxymethylfurfural Glucose Ionic Liquid
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cej.2013.10.007
URL查看原文
Indexed BySCI
Language英语
WOS KeywordLIGNOCELLULOSIC BIOMASS ; SUPERCRITICAL WATER ; ACID ; FRUCTOSE ; DECOMPOSITION ; SUGARS ; TEMPERATURE ; DEHYDRATION ; MECHANISMS ; CHEMICALS
WOS Research AreaEngineering
WOS SubjectEngineering, Environmental ; Engineering, Chemical
WOS IDWOS:000329891900008
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8133
Collection研究所(批量导入)
Affiliation1.Tianjin Univ, Sch Chem Engn & Technol, Minist Educ, Key Lab Green Chem Technol, Tianjin 300072, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jian,Cao, Yan,Li, Huiquan,et al. Kinetic studies on chromium-catalyzed conversion of glucose into 5-hydroxymethylfurfural in alkylimidazolium chloride ionic liquid[J]. CHEMICAL ENGINEERING JOURNAL,2014,237(1):55-61.
APA Zhang, Jian,Cao, Yan,Li, Huiquan,&Ma, Xinbin.(2014).Kinetic studies on chromium-catalyzed conversion of glucose into 5-hydroxymethylfurfural in alkylimidazolium chloride ionic liquid.CHEMICAL ENGINEERING JOURNAL,237(1),55-61.
MLA Zhang, Jian,et al."Kinetic studies on chromium-catalyzed conversion of glucose into 5-hydroxymethylfurfural in alkylimidazolium chloride ionic liquid".CHEMICAL ENGINEERING JOURNAL 237.1(2014):55-61.
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