总结了以活性炭、碳纳米管、介孔碳、石墨烯等碳基材料为载体的加氢脱硫催化剂的研究进展。与常规Al₂O₃基载体催化剂相比,碳基载体催化剂比表面积大,活性金属的分散性好,活性金属-碳表面间的相互作用弱,有利于形成高活性的Ⅱ类活性相。以二苯并噻吩及4,6-二甲基二苯并噻吩等含硫有机物为处理对象,碳基载体加氢脱硫催化剂总体上具有比Al₂O₃基载体催化剂更高的加氢脱硫催化活性。为满足碳基载体加氢脱硫催化剂的工业应用要求,需要降低制备成本,并针对催化体系的特点进行孔结构优化及表面改性,同时,还需要加强对碳基加氢催化剂加氢脱硫反应机理和动力学方面的研究,以促进催化剂与工艺技术的进步。

This review focuses on the research advances in hydrodesulfurization catalysts supported on carbon-based materials such as activated carbon,carbon nanotubes,mesoporous carbon and graphene.Compared with conventional Al₂O₃-supported catalysts,carbon-supported catalysts have large specific surface area,good dispersion of active metals and weak interaction between active metal and carbon surface,which is conducive to the formation of type Ⅱ active phases with high activity.Taking dibenzothiophene,4,6-dimethyldibenzothiophene and other sulfur-containing organic compounds as the treatment objects,carbon-supported hydrodesulfurization catalysts generally have higher hydrodesulfurization catalytic performance than those catalysts supported on Al₂O₃.In order to meet the demand of industrial applications,the preparation cost of carbon-supported hydrodesulfurization catalysts needs to be reduced.And the pore structures and surface properties of carbon-supported hydrodesulfurization catalysts should be optimized and modified according to the needs of catalytic system.Furthermore,it is necessary to strengthen the research on the mechanism and kinetics of hydrodesulfurization reaction,to promote the progress in hydrodesulfurization catalyst and process technology.

耿新国(1978-),男,硕士,高级工程师,研究方向为炼油加氢工艺,gengxinguo.fshy@sinopec.com