丙烷在负载型催化剂上脱氢反应的研究——Ⅱ.丙烷在负载型铂锡催化剂上的脱氢反应

Investigations on Dehydrogenation of Propane over Supported Bi-Component Catalysts Ⅱ. Dehydrogenation of Propane on Supported Platinum Tin Catalysts

考察了丙烷在Al_2O_3、MgO、SiO_2及AC(活性炭)等载体负载铂锡催化剂上的脱氢反应性能;结合M(?)ssbauer谱表征结果,讨论了催化剂中锡组份存在状态与丙烷脱氧反应性能间的关系;认识到只有氧化态锡才有利于催化剂性能的改善。

In this paper,it is concluded that (1) metallic tin free from platinum has little influence on the catalytic performance of supported platinum-tin catalysts;(2) metallic tin alloyed with platinum can poison the supported platinum-tin catalysts, and (3) only tin in oxidized states has beneficial effects on the catalytic performance of the supported platinum-tin catalysts.