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[1]陈杰,王存文*,王为国,等.纤维素在醇-水溶剂中水解及集总动力学研究[J].武汉工程大学学报,2012,(2):14-18.
　CHEN Jie,WANG Cun\|wen,WANG Wei\|guo,et al.Process and lumped kinetics of cellulosehydrolysis in alcohol\|water mixed solvents[J].Journal of Wuhan Institute of Technology,2012,(2):14-18.
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纤维素在醇-水溶剂中水解及集总动力学研究(/HTML)
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
期数:
2012年2期
页码:
14-18
栏目:
化学与化学工程
出版日期:
2012-03-10

文章信息/Info

Title:
Process and lumped kinetics of cellulose
hydrolysis in alcohol\|water mixed solvents
文章编号:
16742869(2012)2001405
作者:
陈杰; 王存文*; 王为国; 张俊峰; 刘强; 段晓玲
武汉工程大学绿色化工过程省部共建教育部重点实验室，湖北 武汉 430074
Author(s):
CHEN Jie;  WANG Cun\|wen;  WANG Wei\|guo;  ZHANG Jun\|feng;  LIU Qiang;  DUAN Xiao\|ling
Key Laboratory for Green Chemical Processes of Ministry of Education, School of Chemical Engineering and
 Pharmacy, Wuhan Institute of Technology, Wuhan 430074, China
关键词:
木质纤维素; 固定床式反应器; 还原糖; 集总动力学; 水解; 表观活化能
Keywords:
lignocellulose;  fixed-bed reactor;  reducing sugar;  lumped kinetics;  hydrolysis;  apparent activation energy
分类号:
TQ02
DOI:
-
文献标志码:
AAdoi:103969/jissn1674286920122003
摘要:
利用固定床式反应器研究了热压醇-水混合溶剂中处理木质纤维素制备还原糖的工艺条件及动力学.通过对不同反应温度、反应压力、不同溶剂等因素进行考察，发现在温度250 ℃、压力17 MPa、乙醇-水混合体积比1∶1时，还原糖的收率可达6753%.以木质纤维素水解过程进行分段集总，提出了三集总动力学，拟合出了17 MPa下，乙醇加入前后，木质纤维素降解的表观活化能分别为119497和56784 kJ/mol.结果表明，乙醇-水作为溶剂时更有利于木质纤维素的降解，提高还原糖收率.
Abstract:
The process and kinetics of lignocellulose hydrolysis in hot-compressed alcohol\|water mixtures for reducing sugar production in a fixed\|bed reactor were investigated It was found that the yield of reducing sugar could reach 6753％ at a temperature of 250 ℃, a pressure of 17 MPa and a volume ratio of ethanol/water 1∶1 By employing a 3\|lump kinetic model, the apparent activation energies of lignocellulose hydrolyses without and with ethanol addition were estimated to be 119497 and 56784 kJ/mol, respectively, at the pressure of 17 MPa The results showed that ethanol\|water mixtures as solvent were beneficial to the hydrolysis of lignocellulose and improvement of reducing sugar production

参考文献/References:

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相似文献/References:

[1]段晓玲,王存文*,李自豪,等.农作物秸秆超低酸水解的比较[J].武汉工程大学学报,2011,(12):6.
　DUAN Xiao ling,WANG Cun wen,LI Zi hao,et al.Comparative study on crop straw hydrolysis underextremely low acid[J].Journal of Wuhan Institute of Technology,2011,(2):6.

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