【作者】 范建光；

【导师】 李建伟；

【作者基本信息】 北京化工大学 ， 化学工程， 2004， 硕士

【摘要】 采用微型等温固定床积分反应器，对YSBH-02型催化剂上苯与异丙醇常压气相烷基化反应的工艺条件及本征动力学进行了较为系统的研究。首先，基于作者建立的一套简单、实用的双柱气相色谱分析系统和等温微型积分反应器，以单因素实验法在较大条件变动范围内，考察了温度、苯/异丙醇摩尔比、空速对烷基化反应过程的影响（包括转化率、产物选择性和产率等）。在此基础上，利用正交实验设计进一步对上述因素的综合效应进行了考察，并确定了较为适宜的工艺操作条件：温度280℃、苯/醇摩尔比13:1、液体空速9 h-1。 然后，利用GC-MS技术和变空速实验所获得的信息，对该反应体系的热力学特性和反应网络结构进行了较为系统的研究，最终确定了该体系的主要反应和主要副反应，并提出了能合理解释实验现象的烷基化反应图式。 最后，在温度240℃～300℃、苯/醇摩尔比8～17条件下，对YSBH-02催化剂上苯与异丙醇气相烷基化反应的本征动力学特性进行了系统的实验研究。按所判识的烷基化反应图式和基于幂函数型动力学方程模型，以Simplex法优化和估计了动力学模型参数，建立了能良好吻合实验数据的YSBH-02型催化剂的本征动力学模型。更多还原

【Abstract】 The operating conditions and intrinsic kinetics of gas-phase alkylation of benzene with isopropanol over a domestic YSBH-02 catalyst were studied using an isothermal integral micro-reactor under atmospheric pressure. Firstly, based on a simple double-separating column GC analytic system developed by author and an isothermal integral micro-reactor, the effect of temperature, benzene/isopropanol mole ratio and liquid space velocity on the alkylation reaction process (including selectivity, conversion and product yield) were investigated by means of the single-factor experimental method under a wide experiment range. And the orthogonal test design was employed to investigate the global effect of these factors above on the alkylation process and the suitable operating conditions were determined as follows: temperature of 280℃, benzene/isopropanol mole ratio of 13 and space velocity of 9 h-1.Secondly, the thermodynamic properties and reaction network of this reaction system were studied systematically based on the GC-MS measuring technology results and the experimental results of the various space velocities. As a result, the main reaction and main side reaction were determined and the reaction network for alkylation of benzene with isopropanol was proposed, which can reasonably explain the experimental phenomena in this paper.Finally, the intrinsic kinetic experiments of alkylation of benzene with isopropanol over YSBH-02 catalyst were carried out in an integral micro-reactor under the following conditions: temperature of 240℃~ 300℃ and benzene/isopropanol mole ratio of 8~17. Power Law type rate equations of this system were established on the basis of reaction network proposed here. The parameters of the kinetic models were estimated by means of Simplex optimal method and the simulation results showed good agreement with experimental data.更多还原