乙炔法合成醋酸乙烯酯催化剂活性影响因素分析及措施

从乙炔法合成醋酸乙烯酯反应机理出发,结合中国石化集团四川维尼纶厂生产实际情况,重点探讨了活性组分Zn(OAc)2含量、催化剂的配制过程、催化剂的粉化、催化剂床层温度等对催化剂活性的影响。提出改进催化剂载体结构、优化催化剂的配制、增加活性组分Zn(OAc)2含量、严格控制工艺条件等措施,从而提高产品产量。

Analysis of activitiy of catalyst in vinyl acetate synthesis from acetylene and its improvement

Based on the reaction mechanism of vinyl acetate synthesis from acetylene,the influencing factors such as the content of Zn(OAc)_2,the preparation process for catalyst,the pulverization process for catalyst,and the bed-layer temperature of catalyst,etc.,on the activity of catalyst were studied in the production of vinyl acetate in SINOPEC Sichuan Vinylon Company.Some measures to improve the activity of catalyst were put forward:improving the carrier structure,optimizing the preparation process for catalyst,increasing the content of Zn(OAc)_2 as the active component of catalyst,and controlling the process conditions strictly,etc.,so that the quality of vinyl acetate has been improved accordingly.