| 高温液态水中葡萄糖分解反应动力学 |
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| 引用本文： | 蔡磊,吕秀阳.高温液态水中葡萄糖分解反应动力学[J].化学反应工程与工艺,2007,23(1):88-91. |
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| 作者姓名： | 蔡磊 吕秀阳 |
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| 作者单位： | 浙江大学二次资源化工国家专业实验室,浙江,杭州,310027 |
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| 基金项目： | 国家自然科学基金
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国家重点基础研究发展计划(973计划)
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浙江省杭州市科技发展计划 |
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| 摘 要： | 研究了压力10 MPa,温度453.15～493.15 K下葡萄糖在高温液态水中分解反应动力学,考察了不同温度下反应时间对葡萄糖异构化产物果糖和进一步分解的主要产物5-羟甲基糠醛收率的影响.实验结果表明,在无外加催化剂情况下,葡萄糖能顺利进行分解反应,实验数据与2级反应动力学方程吻合较好.随着温度的升高,分解反应速率常数显著增大,葡萄糖分解反应的活化能为140.97 kJ/mol.
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| 关 键 词： | 高温液态水 葡萄糖 分解 反应动力学 高温液态水 葡萄糖 分解反应动力学 High Temperature Liquid Water Glucose Kinetics 活化能 数显 反应速率 力学方程 实验数据 情况 催化剂 结果 影响 羟甲基糠醛 果糖 异构化 反应时间 考察 |
| 文章编号： | 1001-7631（2007）01-088-04 |
| 修稿时间： | 2006-09-112007-11-22 |
Decomposition Kinetics of Glucose in High Temperature Liquid Water |
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| Cai Lei,Lü Xiuyang.Decomposition Kinetics of Glucose in High Temperature Liquid Water[J].Chemical Reaction Engineering and Technology,2007,23(1):88-91. |
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| Authors: | Cai Lei Lü Xiuyang |
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| Affiliation: | National Lab of Secondary Resources Chemical Engineering, Zhejiang University, Hangzhou 310027, China |
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| Abstract: | Kinetics of glucose decomposition in high temperature liquid water without addition of any catalyst was studied under temperature from 453.15 K to 493.15 K and pressure 10 MPa. Effects of reaction time and temperature on the yields of fructose isomerized by glucose and 5-hydromethylfurfural decomposed of fructose were investigated. The experimental results showed that glucose decomposition was second-order reaction and the evaluated activation energy of glucose decomposition was 140.97 kJ/mol. |
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| Keywords: | high temperature liquid water glucose decomposition reaction kinetics |
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