C_5石油树脂加氢改性用Pd/Al_2O_3催化剂及其失活原因  

Pd/Al_2O_3 catalyst for hydrogenation modification of C_5 petroleum resin and its deactivation reason

作　　者：官正宇 丰枫[1] 徐娇[1] 朱宇翔[1] 李小年[1] 

机构地区：[1]浙江工业大学工业催化研究所,浙江杭州310032

出　　处：《中国胶粘剂》2014年第10期13-17,共5页China Adhesives

基　　金：浙江省教育厅科研项目(Y201225114);赞宇科研基金项目对外开放项目

摘　　要：研究了Pd/Al2O3催化C5石油树脂的加氢反应时催化剂失活的原因,采用物理吸附(BET)法、X射线衍射(XRD)法、高分辨透射电镜(HRTEM)和电感耦合等离子体质谱(ICP-MS)法等对加氢前后Pd/Al2O3催化C5石油树脂的性能进行了分析。研究结果表明:在加氢过程中,从原料中脱除的S杂质吸附在催化剂表面上,致使催化剂失活;高温氧化脱除催化剂上吸附的S杂质后,该催化剂可恢复加氢活性。The catalyst deactivation reason at hydrogenated reaction of C5 petroleum resin catalyzed by Pd/Al2O3 was investigated,the properties of C5 petroleum resin catalyzed by Pd/Al2O3 before and after hydrogenated reaction were analyzed by physical adsorption（BET）,X-ray diffraction（XRD）,high-resolution transmission electron microscopy（HRTEM） and inductively coupled plasma mass spectrometry （ICP- MS） methods. The research results showed that it was the main reason of catalyst deactivation in the process of hydrogenation when catalyst surface was adsorbed by S（sulphur）-impurity,which was removed from the raw material. The hydrogenation activity of catalyst could be recovered when the adsorbed S-impurity from catalyst surface was removed by high temperature oxidation method.

关 键 词：PD/AL2O3 催化剂 C5石油树脂 加氢改性 失活原因 

分 类 号：TQ326.82[化学工程—合成树脂塑料工业]