Kinetics of Non-catalyzed Decomposition of D-xylose in High Temperature Liquid Water  

作　　者：荆琪 吕秀阳 

机构地区：[1]Department of Chemical and Biochemical Engineering, Zhejiang University, Hangzhou 310027, China

出　　处：《Chinese Journal of Chemical Engineering》2007年第5期666-669,共4页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No.20476089） and the Project of the Ministry of Science and Technology of China （No.2004CCA05500）.

摘　　要：The kinetics of non-catalyzed decompositions of xylose and its decomposition product furfural in high temperature liquid water （HTLW） was studied for temperature from 180 to 220℃ and under pressure of 10MPa. The main products of xylose decomposition were furfural and formic acid, and furfural further degraded to formic acid under HTLW condition. With the assumption of first order kinetics e.quation, the evaluated activation energy of xylose and furfural decomposition was 123.27kJ·mol^-1 and 58.84kJ·mol^-1, respectively.高温度液体水(HTLW ) 里的木糖和它的分解产品糠醛的非催化的分解的动力学从 180 ～ 220 ° C 并且在 10MPa 的压力下面为温度被学习。木糖分解的主要产品是糠醛和蚁的酸，并且糠醛进一步在 HTLW 状况下面降级了到蚁的酸。与第一个顺序动力学方程的假设，木糖和糠醛分解的评估激活精力是 123.27kJ ·摩尔 ? 1 并且 58.84kJ ·摩尔 ? 1 分别地。

关 键 词：high temperature liquid water XYLOSE FURFURAL DECOMPOSITION reaction kinetics 

分 类 号：O643[理学—物理化学]