H_2S对NiW/Al_2O_3和CoMo/Al_2O_3上二苯并噻吩和4,6-二甲基二苯并噻吩加氢脱硫反应的影响  

Effects of H_2S on HDS Reaction of Dibenzothiophene and 4,6-Dimethyl-dibenzothiophene over NiW/Al_2O_3 and CoMo/Al_2O_3 Catalysts

作　　者：王倩[1] 聂红[1] 龙湘云[1] 

机构地区：[1]中国石油化工股份有限公司石油化工科学研究院,北京100083

出　　处：《催化学报》2005年第5期399-402,共4页

基　　金：国家重点基础研究发展规划项目 ( 973计划 ) (G2 0 0 0 0 480 0 3 )

摘　　要：考察了H2 S对NiW /Al2 O3 和CoMo/Al2 O3 上二苯并噻吩(DBT)和4 ,6 二甲基二苯并噻吩(DMDBT)加氢脱硫反应的影响.结果表明,H2 S同时抑制DBT和DMDBT两种硫化物的加氢脱硫反应,并且对DBT的抑制作用更为明显.对于NiW /Al2 O3 和CoMo/Al2 O3 两种催化剂,H2 S抑制了DBT和DMDBT的直接脱硫路径活性;对于CoMo/Al2 O3 催化剂上DBT转化中的加氢反应也有抑制作用,但促进了DMDBT转化中加氢反应的进行.NiW/Al2 O3 催化剂更易受H2The effects of H2S on the catalytic activity of sulfided NiW/Al2O3 and CoMo/Al2O3 for hydrodesulfurization (HDS) reaction of dibenzothiophene (DBT) and 4,6-dimethyldibenzothiophene (DMDBT) were investigated. The addition of H2S inhibited the HDS reactivity of DBT and DMDBT, but the effect on the HDS action of DBT was more obvious. In the HDS reaction of DBT and DMDBT over NiW/Al2O3, H2S inhibited the direct desulfurization and the hydrogenation routes. Similar inhibition occurred in the HDS reaction of DBT over CoMo/Al2O3, however, in the case of DMDBT, H2S suppressed direct desulfurization route while promoted hydrogenation route. NiW/Al2O3 was more susceptible to H2S than CoMo/Al2O3.

关 键 词：硫化氢 镍 钨 钴 钼 氧化铝 负载型催化剂 二苯并噻吩 二甲基二苯并噻吩 加氢脱硫 

分 类 号：TE624.5[石油与天然气工程—油气加工工程]