Pt改性分子筛催化剂上丙烷与苯的烷基化反应  

Alkylation of Propane with Benzene over Pt-Modified Zeolites

作　　者：黄学庆[1,2,3] 孙新德[1] 朱书魁[1] 刘中民[1] 

机构地区：[1]中国科学院大连化学物理研究所 [2]中国科学院研究生院,北京100049 [3]大庆油田有限责任公司,黑龙江大庆163000

出　　处：《催化学报》2007年第3期201-204,共4页

摘　　要：研究了不同分子筛负载的Pt催化剂上丙烷与苯的烷基化反应．结果表明，Pt／HZSM．5具有较好的催化性能．在0-0．3％范围内提高Pt负载量可以提高催化剂的催化活性和生成C9以及C10＋芳烃的选择性，降低非芳烃产物的选择性．较低的反应温度、较高的苯俩烷摩尔比和较高的空速有利于烷基芳烃的生成．The alkylation of propane with benzene over Pt catalysts supported on different zeolites was studied. Pt/HZSM-5 shows much higher selectivity for alkylbenzene than other catalysts. With increasing Pt loading from 0 to 0.3 %, the conversion of propane and the selectivity for C9 and C10 ＋ aromatics increase, whereas the selectivity for non-aromatics decreases. The effects of the reaction temperature, space velocity, and benzene/ propane molar ratio on the alkylation of propane with benzene over Pt/HZSM-5 zeolite were investigated. Low reaction temperature, high space velocity, and high benzene/propane molar ratio favor the formation of alkylbenzene.

关 键 词：铂 ZSM-5 丙烷 苯 烷基化 

分 类 号：O643.32[理学—物理化学]