环戊二烯加氢制环戊烯的工艺条件优化研究

Study on Preparation of Cyclopentene by Hydrogenation of Cyclopentadiene

以环戊二烯为原料,使用PdCl3为催化剂,甲苯为溶剂,采用间歇式高压反应釜,常温条件加氢制备环戊烯。采用正交实验对环戊二烯加氢过程进行研究,确定了反应温度、催化剂用量、压力、反应时间等因素对加氢过程的影响。优化工艺条件为:反应温度25℃,催化剂比例1.0%(m/m),压力1.5 MPa,反应时间4 h,此时环戊烯的收率达85.5%。

Cyclopentene was prepared by PdC13 catalyzed hydrogenation of cyclopentadiene in toluene under pressure at room temperature. The reaction conditions were optimized on basis of orthogonal experiments：reaction temperature of 25℃ ,load of catalyst of 1.0 % （mass）,hydrogen pressure of 1.5 MPa,reaction time of 4 hours. The yield of cyclopentene was 85.5%.