喹啉、吲哚对二苯并噻吩在NiMoS／γ-Al2O3上加氢脱硫反应的影响.pdfVIP

石油学报(石油加工) 2008年 4月 ACTA PETROLEI SINICA(PETROLEUM PROCESSING SECTION) 第24卷第2期 文章编号：1001—8719(2008)02—0151—07 喹啉、吲哚对二苯并噻吩在 NiMoS／7一AI2 O3 上加氢脱硫反应的影响 相春娥 ，柴永明 。，邢金仙。，柳云骐 ，刘晨光 。 (1．中国石油大学 CNPC催化重点实验室，山东／g,营 257061；2．中国石油大学重质油国家重点实验室，山东 东营257061) 摘要：在固定床高压微反装置中考察了喹啉和吲哚对二苯并噻吩(DBT)在 NiMoS／y-A1z0s催化剂上加氢脱硫 (HDS)反应活性及反应路径的影响。结果表明，喹啉和吲哚均对 DBT的加氢脱硫反应具有抑制作用。少量的喹啉 和吲哚即可强烈抑制 DBT加氢脱硫反应的加氢路径；而当含氮化合物加入量高时，才能较为显著地抑制 DBT加 氢脱硫反应的氢解路径。在相同的条件下，喹啉对加氢脱硫反应的抑制能力比吲哚强。产物分析结果表明，氮化物 对 DBT加氢脱硫反应的抑制作用与其分子结构和加氢脱氮反应中间产物的种类紧密相关。 关 键 词：加氢脱硫；二苯并噻吩；喹啉；吲哚；NiMoS／y-A1z0s；抑制 中图分类号：TE624．4 文献标识码：A EFFECTS OF QUINOLINE AND INDOLE ON THE HYDRODESULFURIZATION OF DIBENZOTHIOPHENE OVER NiMoS／y-A12 03 CATALYST XIANG Chun—e ，CHAI Yong—ming ，XING Jin—xian ，LIU Yun-qi ，LIU Chen-guang ’ (1．Key Laboratory of Catalysis，CNPC，China University of Petroleum，Dongying 257061，China； 2．State Key Laboratory of Heavy Oil Processing，China University of Petroleum，Dongying 257061，China) Abstract：The effects of quinoline and indole on the hydrodesulfurization (HDS) reactivity and reaction routes of dibenzothiophene(DBT)were studied over NiMoS／y-Al2 O3 catalyst in a fixed—bed high pressure micro—reactor．The results showed that both q uinoline and indole could inhibit the HDS reaction of DBT．They inhibited the hydrogenation route of DBT HDS strongly even at low nitrogen concentration．While the inhibition for the direct desulfurization route only could be seen when the nitrogen concentration increased．The inhibition of quinoline on DBT HDS was stronger than that of indole．The analysis of the products in hydrodenitrogenation (HDN)reaction of quinoline and indole suggested that their inhibition on DBT HDS was closely related to their original structure and the structur