加氢裂化预处理催化剂THHN-1的研发与工业应用

为了满足中压加氢裂化装置加工高硫、氮环烷基原料加氢预处理的需求,中海油天津化工研究设计院采用凝胶法氧化铝载体制备技术和多种控制活性组分分布的技术,研制出具有高加氢脱氮活性的加氢裂化预处理催化剂THHN-1,并在中海油舟山石化有限公司的1.7Mt/a馏分油加氢装置上实现首次工业应用。实验室及首次工业应用结果表明,THHN-1催化剂具有更大的比表面积和孔容、更合理的酸性特点。THHN-1加氢活性高,活性稳定性好,尤其是加氢脱氮活性优于工业参比剂,更适用于以海洋环烷基高氮原油为原料的二次加工油的中高压加氢裂化工艺。

DEVELOPMENT AND INDUSTRIAL APPLICATION OF HYDROCRAKING PRETREATMENT CATALYST THHN-1

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.