助剂钙对二乙苯脱氢催化剂性能的影响  

The Effects of Promoter Calcium on Catalyst Properties of Diethylbenzene Dehydrogenation

作　　者：齐晓周[1] 秦永宁[1] 张黎明[1] 郭喆 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《石油化工》1999年第12期807-809,共3页Petrochemical Technology

摘　　要：制备了助剂钙含量不同的催化剂，考察了助剂钙对铁基二乙苯脱氢催化剂性能的影响。结果表明，助剂钙能提高催化剂活性组份的分散度，增大比表面积，增加热稳定性，并能有效地提高催化剂抗积炭性能，但改善选择性的能力较差，并考察了共沉淀法和浸渍法两种不同的ＣａＯ 引入方式对催化剂性能的影响。In this paper,the effects of calcium on catalyst properties were studied,It is found that promoter calcium can increase conversion,improve dispersion and enhance specific surface area Promoter calcium also can enhance the thermal stability and resistance to carbon deposition As for methods of introducing CaO,the co-precipitation method facilitates the improvement of activity,dispersion and specific surface area,while immersion facilitates the improvement of thermal stability and resistance to carbon deposition

关 键 词：助剂钙 二乙苯 脱氢 催化剂 性能 

分 类 号：TQ241.1[化学工程—有机化工] TQ426.94