Catalytic dehydrogenation of propane to propylene over highly active PtSnNa/γ-Al2O3 catalyst  

作　　者：Shiyong Zhao Bolian Xu Lei YU Yining Fan 

机构地区：[1]Key Laboratory of Mesoscopic Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China [2]Nanjing University-Yangzhou Chemistry and Chemical Engineering Institute, Yangzhou 211400, China [3]School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China

出　　处：《Chinese Chemical Letters》2018年第3期475-478,共4页中国化学快报（英文版）

基　　金：the Doctoral Program of Higher Education(No. SRFDP-2012009111001);NNSFC(No. 21202141);Priority Academic Program Development(PAPD) of Jiangsu Higher Education Institutions, Key Science & Technology Specific Projects of Yangzhou(No. YZ20122029);Yangzhou Nature Science Foundation(No. YZ2014040) for financial support

摘　　要：PtSnNa/γ-Al2O3 catalyst is widely used in the dehydrogenation of light alkane. This paper reports a new fabrication method of the catalyst. In the work, γ-Al2O3, SnCl4 and NaCl were ball milled to upload Sn and Na＋ onto the support instead of the conventionally used immersion method. The subsequent baking procedures frimly fixed Sn onto the support, which could disperse Pt introduced by immersion. The effects of Sn and Na＋ additives on the catalytic performance of PtSnNa/y-Al2O3 catalyst were investigated. It was found that the appropriate molar ratio of Sn/Pt was 6：1 while the favorable weight percentage of Na＋ was 0.90%. Compared with the reaction catalyzed by the industrially employed PtSnNa/ γ-Al2O3 catalyst, the conversion of propane and the selectivity of propylene had been greatly improved, which were 26.97%; and 99.18% respectivelv after 12 h reaction.PtSnNa/γ-Al2O3 catalyst is widely used in the dehydrogenation of light alkane. This paper reports a new fabrication method of the catalyst. In the work, γ-Al2O3, SnCl4 and NaCl were ball milled to upload Sn and Na＋ onto the support instead of the conventionally used immersion method. The subsequent baking procedures frimly fixed Sn onto the support, which could disperse Pt introduced by immersion. The effects of Sn and Na＋ additives on the catalytic performance of PtSnNa/y-Al2O3 catalyst were investigated. It was found that the appropriate molar ratio of Sn/Pt was 6：1 while the favorable weight percentage of Na＋ was 0.90%. Compared with the reaction catalyzed by the industrially employed PtSnNa/ γ-Al2O3 catalyst, the conversion of propane and the selectivity of propylene had been greatly improved, which were 26.97%; and 99.18% respectivelv after 12 h reaction.

关 键 词：Propane Propylene Dehydrogenation Platinum Aluminum oxide 

分 类 号：O643.36[理学—物理化学] TQ221.212[理学—化学]