Preparation of Alumina Binder-Added PtSnNa/AlSBA-15 Catalyst for Propane Dehydrogenation  

作　　者：Zhang Peixin Zhou Yuming Duan Yongzheng Zhang Yiwei Sheng Xiaoli 

机构地区：[1]School of Chemistry and Chemical Engineering,Southeast University [2]Geological Survey of Jiangsu Province

出　　处：《China Petroleum Processing & Petrochemical Technology》2013年第1期25-31,共7页中国炼油与石油化工（英文版）

基　　金：the National Nature Science Foundation of China(50873026,and21106017);the Production and Research Prospective Joint Research Project(BY2009153);the Science and Technology Support Program(BE2008129) of Jiangsu Province of China;Specialized Research Fund for the Doctoral Program of Higher Education of China(20100092120047) for financial supports

摘　　要：Abstract： The present article compares the propane dehydrogenation performance of alumina binder-added PtSnNa/ A1SBA-15 catalysts prepared via three different procedures in comparison with the performance of a binder-free PtSnNa/ AISBA-15 catalyst. All these catalysts have been investigated by reaction tests and some physico-chemical characterizations such as BET, H2 chemisorption, catalytic grain crushing strength, NHa-TPD and TPO analyses. Test results showed that the addition of alumina binder could enhance the mechanical strength of catalyst evidently. Moreover, the different preparation procedures not only modified the characteristics of both acid and metal functions but also affected the coke deposition on the catalysts. Among these catalysts studied, the catalyst prepared by impregnation followed by the agglomeration of alumi- na binder had exhibited the highest catalytic activity and stability compared with other catalyst samples undergoing different preparation procedures. The possible reason may be attributed to the highest metallic dispersion and the strong interactions among Pt, Sn and the support.The present article compares the propane dehydrogenation performance of alumina binder-added PtSnNa/ AlSBA-15 catalysts prepared via three different procedures in comparison with the performance of a binder-free PtSnNa/AlSBA-15 catalyst. All these catalysts have been investigated by reaction tests and some physico-chemical characterizations such as BET, H2 chemisorption, catalytic grain crushing strength, NH3-TPD and TPO analyses. Test results showed that the addition of alumina binder could enhance the mechanical strength of catalyst evidently. Moreover, the different preparation procedures not only modified the characteristics of both acid and metal functions but also affected the coke deposition on the catalysts. Among these catalysts studied, the catalyst prepared by impregnation followed by the agglomeration of alumina binder had exhibited the highest catalytic activity and stability compared with other catalyst samples undergoing different preparation procedures. The possible reason may be attributed to the highest metallic dispersion and the strong interactions among Pt, Sn and the support.

关 键 词：A1SBA-15 BINDER preparation procedure propane dehydrogenation alumina. 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]