Ni_2P和MoS_2催化剂在喹啉加氢脱氮反应中的协同效应(英文)  

Synergetic effect between Ni_2P/γ-Al_2O_3 and MoS_2/γ-Al_2O_3 catalysts on their performance in hydrodenitrogenation of quinoline

作　　者：刘理华[1,2] 刘书群[1] 柴永明[2] 柳云骐[2] 刘晨光[2] 

机构地区：[1]淮北师范大学化学与材料科学学院,安徽淮北235000 [2]中国石油大学(华东)重质油国家重点实验室,山东青岛266555

出　　处：《燃料化学学报》2013年第6期698-702,共5页Journal of Fuel Chemistry and Technology

基　　金：Major State Basic Research Development Program of China(973 Program,2010CB226905);the Natural Science Foundation of Educational Committee of Anhui Province(KJ2013B243);the Youth Foundation of Huaibei Normal University(2012xq47,2013xqz01)

摘　　要：设计实验证明了Ni2P和MoS2催化剂在喹啉加氢脱氮反应中存在协同效应,该协同效应能够用氢溢流遥控模型理论解释。Ni2P//MoS2的协同因子随反应温度升高而减小,并且略微大于相同反应条件下NiSx//MoS2的协同因子。Ni2P产生的溢流氢能够提高MoS2催化剂上加氢活性位的数量,促使Ni2P//MoS2催化体系增加1,2,3,4-四氢喹啉和5,6,7,8-四氢喹啉加氢生成十氢喹啉的速率,提高其脱氮活性;因此,Ni2P对MoS2催化剂是很好的助剂。The synergetic effect between Ni2P/Al2O3 and MoS2/Al2O3 catalysts on their performance in the hydrodenitrogenation of quinoline was proved by a simplified experimental design and explained by the remote control model through a migration of hydrogen spillover.The results indicated that the synergism factor of Ni2P and MoS2 is slightly higher than that of NiS x and MoS 2;it decreases with the increase of reaction temperature.Since the spillover hydrogen with Ni2P can increase the amount of hydrogenation active sites of MoS 2,the hydrogenation rate of 1,2,3,4-tetrahydroquinoline and 5,6,7,8-tetrahydroquinoline to decahydroquinoline over the Ni2P/ Al2O3 and MoS 2 / Al2O3 catalyst system is then greatly enhanced;as a result,Ni2P is a superior promoter for MoS2 catalyst for hydrodenitrogenation.

关 键 词：氢溢流 协同效应 加氢脱氮 MOS2 NI2P 喹啉 

分 类 号：TE624[石油与天然气工程—油气加工工程]