苯和乙烯气相合成乙苯的方法自七十年代后期工业化以来,引起了国内外研究者的重视.我们用上海高桥化工厂生产的AF-5分子筛催化剂,研究了该反应的动力学规律. 实验采用积分反应器.反应器为长360mm,内径8mm的不锈钢管,内装外径为3mm的热电偶套管.外部用铜块加热.床层轴向温差小于±1.5℃,温度波动小于±0.5℃.催 The gas-phase synthesis of ethylbenzene from benzene and ethylene has drawn the attention of researchers at home and abroad since its industrialization in the late 1970s. We studied the kinetics of this reaction using AF-5 zeolite catalyst from Shanghai Gaoqiao Chemical Plant. The experiment uses an integral reactor.The reactor is a stainless steel tube with a length of 360mm and an inner diameter of 8mm and a thermocouple tube with an outer diameter of 3mm.The outer part is heated with a copper block.The axial temperature difference of the layer is less than ± 1.5 ℃ and the temperature fluctuation is less than ± 0.5 ℃. Reminder