Catalytic Performance of Bare Supporters and Supported KVO_3 Catalysts for Cracking n-Butane to Produce Light Olefins  

作　　者：LuJiangyin ZhaoZhen XuChunming ZhangPu 

机构地区：[1]StateKeyLaboratoryofHeavyOilProcessing,UniversityofPetroleum,Beijing102249,China

出　　处：《Petroleum Science》2005年第1期52-56,共5页石油科学（英文版）

摘　　要：Supported KVO3 catalysts were prepared by impregnating different kinds of supporters (α-Al2O3, γ-Al2O3 and SiO2 powders) with a KVO3 solution. The activity of the bare supporters and supported catalysts were evaluated in a continuous micro-reactivity test unit, with n-butane as a raw material. The results show that KVO3 has no catalytic activity, but it can increase the selectivity to light olefins. The supporter of α-Al2O3 has good catalytic performance for n-butane cracking when the reaction temperature is below 700℃.Supported KVO3 catalysts were prepared by impregnating different kinds of supporters (α-Al2O3, γ-Al2O3 and SiO2 powders) with a KVO3 solution. The activity of the bare supporters and supported catalysts were evaluated in a continuous micro-reactivity test unit, with n-butane as a raw material. The results show that KVO3 has no catalytic activity, but it can increase the selectivity to light olefins. The supporter of α-Al2O3 has good catalytic performance for n-butane cracking when the reaction temperature is below 700℃.

关 键 词：Catalytic cracking catalyst ALKENE N-BUTANE KVO3 

分 类 号：TE626.88[石油与天然气工程—油气加工工程] TE624.41