Kinetic Study of Retro-Aldol Condensation of Glucose to Glycolaldehyde with Ammonium Metatungstate as the Catalyst

	Kinetic Study of Retro-Aldol Condensation of Glucose to Glycolaldehyde with Ammonium Metatungstate as the Catalyst
	Zhang, Junying; Hou, Baolin; Wang, Aiqin; Li, ZhenLei; Wang, Hua; Zhang, Tao
刊名	aiche journal
	2014-11-01
卷号	60 期号:11 页码:3804-3813
关键词	glucose glycolaldehyde retro-aldol condensation kinetics ethylene glycol
通讯作者	王爱琴 ; 张涛
英文摘要	the kinetics of the retro-aldol condensation of glucose to glycolaldehyde was studied in a batch reactor at 423-453 k using ammonium metatungstate (amt) as the catalyst. three consecutive reactions were considered: retro-aldol condensation of glucose to erythrose and glycolaldehyde (r1), retro-aldol condensation of erythrose to two moles of glycolaldehyde (r2), and further conversion of glycolaldehyde to side products (r3). fitting of the experimental data showed that r1 was first-order reaction while r2 and r3 were 1.7th- and 2.5th-order reaction, respectively. conversely, the reaction rate of r1 was 0.257th-order dependence on the concentration of amt catalyst. the apparent activation energies for r1, r2, and r3 were 141.3, 79.9, and 52.7 kj/mol, respectively. the high activation energy of r1 suggests that a high temperature is favorable to the formation of glycolaldehyde. the experimental c-t curves at different temperatures and initial glucose concentrations were well predicted by the kinetic model. (c) 2014 american institute of chemical engineers
学科主题	物理化学
WOS标题词	science & technology ; technology
类目[WOS]	engineering, chemical
研究领域[WOS]	engineering
关键词[WOS]	tungsten carbide catalysts ; ethylene-glycol ; microcrystalline cellulose ; 1,2-propylene glycol ; bimetallic catalysts ; supercritical water ; biomass conversion ; renewable diesel ; lactic-acid ; high-yield
收录类别	SCI
语种	英语
WOS记录号	WOS:000345232800012
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/143800]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Junying,Hou, Baolin,Wang, Aiqin,et al. Kinetic Study of Retro-Aldol Condensation of Glucose to Glycolaldehyde with Ammonium Metatungstate as the Catalyst[J]. aiche journal,2014,60(11):3804-3813.
APA	Zhang, Junying,Hou, Baolin,Wang, Aiqin,Li, ZhenLei,Wang, Hua,&Zhang, Tao.(2014).Kinetic Study of Retro-Aldol Condensation of Glucose to Glycolaldehyde with Ammonium Metatungstate as the Catalyst.aiche journal,60(11),3804-3813.
MLA	Zhang, Junying,et al."Kinetic Study of Retro-Aldol Condensation of Glucose to Glycolaldehyde with Ammonium Metatungstate as the Catalyst".aiche journal 60.11(2014):3804-3813.