石油化工2013，Vol.42Issue(4)：374-378,5.
磷对Re基催化剂上丁烯自歧化反应性能的影响
Effect of Phosphorus on Butene Self-Metathesis Reaction on Rhenium-Based Catalyst
摘要
Abstract
Re2O7/γ-Al2O3 catalysts with different phosphorus contents were prepared via conventional incipient-wetness impregnation method.Mixed butene self-metathesis reactions over the catalysts were investigated in a fixed-bed reactor.The catalysts were characterized by means of XRD,NH3-TPD,H2-TPR,N2-adsorption and TG.The results indicated that the amounts of acid and Re species which are difficult to be reduced on the catalysts increased when phosphorus was added.The addition of phosphorus enhanced the stability of the catalysts.But when the phosphorus content reached 8％(based on the mass of support),the BET specific surface areas of the catalysts and the stability of the mixed butene self-metathesis reactions reduced significantly.Under the reaction conditions of 5％P-1％Re2O7/γ-Al2O3 as the catalyst(phosphorus content 5％(w),Re2O7 loading 1％(w)),catalyst dosage 4.9 g,80 ℃,1.0 MPa,n(1-butene) ∶ n(2-butene) 3,WHSV of the mixed butene 1.2 h-1 and 55 h on stream,the mixed butene conversion and the propene yield reached more than 50％ and more than 12％,respectively.关键词
丁烯自歧化/丙烯/铼基催化剂/磷Key words
butene self-metathesis/ propene/ rhenium-based catalyst/ phosphorus分类
能源科技引用本文复制引用
李鹏,田志坚,曲炜,王炳春,徐云鹏,徐竹生..磷对Re基催化剂上丁烯自歧化反应性能的影响[J].石油化工,2013,42(4):374-378,5.基金项目
国家自然科学基金项目(20903092). （20903092）
