| 叔丁醇溶剂中TS-1催化丙烯环氧化的动力学研究 |
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| 引用本文： | 梁新华,米镇涛,吴玉龙,邢恩会,王莅. 叔丁醇溶剂中TS-1催化丙烯环氧化的动力学研究[J]. 燃料化学学报, 2003, 31(6): 639-643 |
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| 作者姓名： | 梁新华 米镇涛 吴玉龙 邢恩会 王莅 |
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| 作者单位： | School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China |
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| 基金项目： | 国家自然科学基金 (2 9792 0 70 )，国家重点基础研究发展规划 (973 )(G2 0 0 0 480 0 5)~~ |
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| 摘 要： | 研究了叔丁醇溶剂中TS-1催化丙烯环氧化反应的本征动力学，反应条件为:温度303.15K～323.15K，丙稀压力0.3 MPa～0.6 MPa。根据反应机理及组分在TS-1上的吸附特点建立了如下的机理模型方程式：根据实验数据，我们对机理模型进行了参数估值。检验结果表明拟合效果较好，反应符合Eley-Rideal机理，丙烯环氧化反应发生在吸附态的过氧化氢与游离态的丙烯之间。
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| 关 键 词： | 钛硅分子筛 环氧丙烷 叔丁醇 本征动力学 |
| 收稿时间： | 2003-02-23 |
| 修稿时间： | 2003-10-30 |
KINETICS OF PROPYLENE EPOXIDATION OVER TS-1 IN t-BUTYL ALCOHOL |
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| Abstract. KINETICS OF PROPYLENE EPOXIDATION OVER TS-1 IN t-BUTYL ALCOHOL[J]. Journal of Fuel Chemistry and Technology, 2003, 31(6): 639-643 |
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| Authors: | Abstract |
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| Abstract: | The intrinsic kinetics of propylene epoxidation with H2O2 over TS-1 in t-butyl alcohol/water system was investigated. The reaction was carried out at T=303.15 K～323.15 K, p=0.3 MPa～0.6 MPa. Based on the proposed reaction mechanism and adsorption characteristics, the kinetic model was established as follows: rcal=kK1CH2O2CC3H61+K1CH2O2+K2CC3H6+K3CPO based on the experimental data, the model parameters were estimated. The results showed that the Eley-Rideal model could fit precisely with the experimental data, and the reaction takes place between H2O2 adsorbed on Ti active sites and propylene in free state. |
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| Keywords: | titanium silicalite (TS-1) PO (propylene oxide) t-butyl alcohol intrinsic kinetics |
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