【摘要】 用积分床中测得的乙苯转化率与接触时间的数据,从五个可能的动力学模型中筛选出最佳模型。然后用苯乙烯、甲苯和苯的生成率数据估计主、副反应动力学方程中的诸参数。结果表明所得模型在较宽广的范围内均能很好地反映温度、分压和水与乙苯的比例对转化率的影响。为反应器的设计和最佳操作条件的选择研究提供了必要的依据。更多还原

【Abstract】 Five plausible kinetic models of the dehydrogenation of ethylbenzene to styrene on catalyst "315" are discriminated and screened by use of the data of the conversion of ethylbenzene and contact time measured in an integral reactor and optimal model is selected. Then the kinetic parameters of the main and side reactions are estimated respectively by the data of the formation of styrene, toluene and benzene. Results show that the influence of temperature, partial pressure and mol ratio of water-ethylbenzene on ethyl-benzene conversion and formation of styrene, toluene and benzene within a wide range can be well interpreted on the basis of the selected kinetic model. Thus, it provides the neccessary information, for the reactor design and the choice of optimal operation conditions.更多还原