柴油加氢脱硫催化剂的研究进展  

The research development of diesel hydrodesulfurization catalysts

作　　者：刘丽[1] 郭蓉[1] 孙进[1] 丁莉[1] 杨成敏[1] 段为宇[1] 姚运海[1] 

机构地区：[1]中国石油化工股份有限公司抚顺石油化工研究院,辽宁抚顺113001

出　　处：《化工进展》2016年第11期3503-3510,共8页Chemical Industry and Engineering Progress

基　　金：联合基金项目(U1463203);中国石油化工集团公司项目

摘　　要：随着环保问题越来越受到世界各国的重视,各国相继推出了高质量的清洁燃料标准。低硫化是柴油清洁利用的发展趋势,研制开发高效稳定的加氢脱硫催化剂是加氢脱硫技术研究的主要方向之一。本文主要阐述了国内外在柴油加氢脱硫方面的研究成果,主要分析了柴油加氢脱硫反应机理、柴油加氢脱硫催化剂的主催化剂、助剂和载体的研究进展。分析表明,柴油加氢脱硫的主要路径是直接脱硫和加氢路径,而柴油中受空间位阻影响大的4.6-二甲基二苯并噻吩的脱除路径主要是加氢路径和烷基转移路径。文章从柴油加氢脱硫催化剂的组成和结构分析了催化剂的加氢脱硫机理,得到加氢脱硫活性与催化剂的表面微观结构紧密相关。分析了近年来催化剂载体的研究进展,发现柴油加氢脱硫催化剂的载体主要是氧化铝及改性的氧化铝。Facing the ever growing attention of environmental protection issues,many countries have formulated stringent standards of clean fuel,and the use of low sulfur diesel oil is the development trend,while the research of hydrodesulfurization（HDS）catalysts with high efficiency and stability is one of main directions. In this paper,we introduce the main research results about HDS,such as the reaction mechanism,main active components,the assistants and supports. The results indicate that the main reaction pathways of HDS are direct desulfurization and hydrogenation,and the main HDS route of 4,6-DMDBT of high steric hindrance should be hydrogenation and/or alkyl transfer. The catalytic mechanism of HDS is analyzed based on the composition and structure of catalysts,and the results indicate that the HDS activity is closely related to the catalyst＇s surface microstructure. At present,the supports of the catalysts are mainly alumina and modified alumina.

关 键 词：加氢脱硫 催化剂 催化剂载体 柴油 

分 类 号：TQ426[化学工程]