Pd/C催化聚苯乙烯加氢制聚环己烷基乙烯的研究  

Hydrogenation of polystyrene to polycyclohexyl ethylene over Pd/C

作　　者：钱俊峰[1] 郭欣荣 刘平[1] 钟东文[2] 孙中华 王钘 吴中[1] 韦梅峻 何明阳[1] QIAN Jun-feng;GUO Xin-rong;LIU Ping;ZHONG Dong-wen;SUN Zhong-hua;WANG Xing;WU Zhong;WEI Mei-jun;HE Ming-yang(Jiangsu Key Laboratory of Green Catalytic Materials and Technology,School of Petrochemical Technology,Changzhou University,Changzhou 213164,China;Sinopec Maoming Petrochemical Company,Maoming 525000,China)

机构地区：[1]江苏省绿色催化材料与技术重点实验室,常州大学石油化工学院,江苏常州213164 [2]中国石油化工股份有限公司茂名分公司,广东茂名525000

出　　处：《现代化工》2022年第8期141-145,共5页Modern Chemical Industry

基　　金：中石化总部科技开发项目(421103-8)。

摘　　要：研究了不同载体负载的Pd催化剂Pd/MCM-41、Pd/AlO、Pd/MC和Pd/C在聚苯乙烯(PS)加氢制聚环己烷基乙烯(PCHE)中的性能。考察了催化剂质量、搅拌速度、反应温度、反应时间及反应压力等对PS加氢反应的影响。结果表明,具有较高分散度的Pd/C催化剂表现出优异的催化活性和稳定性。在催化剂质量为0.1 g和较低的反应温度(160℃)下,Pd/C催化PS加氢的转化率>99%,且产物PCHE具有较高的玻璃化转变温度、较低的密度和吸水性及较高的抗拉强度。The performances of Pd catalysts with different supports, including Pd/MCM-41,Pd/AlO,Pd/MC and Pd/C,in the hydrogenation of polystyrene to polycyclohexyl ethylene(PCHE) are evaluated.Meanwhile, the effects of catalyst dosage, stirring speed, reaction temperature, reaction time and reaction pressure on the hydrogenation are investigated.It is shown by results that the Pd/C catalyst with higher Pd dispersion exhibits excellent catalytic activity and stability.Under lower catalyst dosage(0.1 g) and reaction temperature(160℃),the conversion of polystyrene over Pd/C exceeds 99%.In addition, the produced PCHE has a high glass transition temperature, low density and water absorption, as well as high tensile strength.

关 键 词：聚苯乙烯 催化加氢 钯 PD/C 

分 类 号：TQ320.6[化学工程—合成树脂塑料工业]