气相常压法α-蒎烯加氢制蒎烷Ni/γ-Al_2O_3催化剂研究  

Study on the Ni/γ-Al_2O_3 Catalyst for Hydrogenation α-Pinene to Pinane in Vapor Phoase at Atmospheric Pressure

作　　者：付亚[1] 范以宁[2] 

机构地区：[1]东南大学化学化工系,江苏南京210093 [2]南京大学化学化工学院,江苏南京210093

出　　处：《化工时刊》2005年第8期18-20,共3页Chemical Industry Times

摘　　要：对Ni/γ-Al2O3催化剂在气相常压法α-蒎烯加氢反应中的作用进行了研究,TPR结果显示NiO与γ-Al2O3发生了相互作用,进入了γ-Al2O3表面上的四面体和八面体空位,其中由进入γ-Al2O3表面上八面体空位的NiO还原出的金属Ni是本反应的催化剂成分,而进入四面体的Ni不起作用。增加Ni含量利于提高α-蒎烯的转化率。The γ-Al2O3 catalysts for hydrogenating α- pinene to pinane in vapor phase at atmostpheric pressure are studied by TPR technique. Ni^2＋ isperses at octahedral and tetrahedral vacancies in the surface of γ-Al2O3 and only the octahedral site nickel can be reduced to metal nickel in this paper. The active center of The Ni/γ-Al2O3 in the metal nickel reduced form the nickel oxide surface - dispersed at octahedral site. The catalytic capacity of high Ni loading Ni/γ-Al2O3 catalyst is prior to the low loading catalyst due to more ratio octahedral nickel formed for high Ni loading.

关 键 词：气相常压法 α-蒎烯加氢 Ni/γ-Al2O3 八面体空位 四面体空位 TPR NI/Γ-AL2O3催化剂 催化剂研究 Α-蒎烯 加氢反应 

分 类 号：TQ426.8[化学工程]