关键词: 加氢裂化, 预处理, 催化剂, 加氢脱氮, 凝胶法

Abstract: To meet the demand of hydrogenation pretreatment for processing high sulfur and high nitrogen naphthenic materials in medium pressure hydrocracking unit, CNOOC CenerTech Tianjin Chemical Research and Design Institute Co. Ltd. has developed a new generation of hydrocracking pretreatment catalyst THHN-1 with high HDN activity by the gel method for alumina preperation and the redistribution technology for active components. The catalyst was first realized industrial application in medium pressure hydrocracking unit of CNOOC Zhoushan Petrochemical Company. The results of the laboratory and the first industrial application showed that THHN-1 catalyst had high hydrogenation and high HDN activity, better than the industrial reference agent, and was more suitable for the medium and high pressure hydrocracking to pretreat the secondary oils of marine naphthenic-based crude oils.

Key words: hydrocracking, pretreatment, catalyst, hydrodenitrogenation, gel method