Ni_2P/TiO_2-Al_2O_3催化剂的制备及加氢脱氮反应性能  

PREPARATION AND PERFORMANCE OF Ni_2P/TiO_2-Al_2O_3 CATALYST FOR HYDRODENITROGENATION

作　　者：张海礁[1] 边昌兵[1] 王海彦[1] 白英芝[1] 

机构地区：[1]辽宁石油化工大学石油化工学院,抚顺113001

出　　处：《石油炼制与化工》2011年第12期42-45,共4页Petroleum Processing and Petrochemicals

基　　金：辽宁省教育厅科技项目(2009R38)

摘　　要：采用溶胶-凝胶法制备TiO2-Al2O3复合载体,并用饱和浸渍法制备Ni2P/TiO2-Al2O3催化剂氧化态前躯体。在固定床反应器中采用原位还原技术用H2制备出Ni2P/TiO2-Al2O3催化剂。以喹啉为模型化合物对催化剂的加氢脱氮性能进行评价,结果表明,n(TiO2)∶n(Al2O3)及Ni2P的负载量对催化剂活性有较大影响,当n(TiO2)∶n(Al2O3)=1∶4、Ni2P的负载量(w)为25%时,Ni2P/TiO2-Al2O3催化剂表现出最高的催化活性,脱氮率达98%。TiO2-Al2O3 compound supports were prepared by sol-gel method and used in preparing the oxide form precursors of Ni2P/TiO2-Al2O3 catalysts by impregnation. Ni2P/TiO2-Al2O3 catalysts were obtained by in- situ hydrogen reduction technique in a fixed-bed reactor and then hydrodenitrogenation （HDN） activity of the catalyst was tested using quinoline as model compound. Results showed that TiO2/Al2O3 molar ratio and Ni2 P loaded amount had significant influence on catalyst activity. Catalyst prepared with a TiO2/Al2O3 molar ratio of 0. 5 and a Ni2 P loaded amount of 25% exhibited the best catalytic activity, its HDN rate reached 98%.

关 键 词：加氢脱氮 NI2P TIO2 AL2O3 喹啉 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]