孔结构优化对渣油加氢脱金属剂的影响研究  

Study on impact of pore structure optimization on demetallization catalysts for fixed bed residue hydrotreating

作　　者：辛靖 宋宇 吕艳艳 朱元宝 卢德庆 张海洪 陈松 XIN Jing;SONG Yu;Lü Yanyan;ZHU Yuanbao;LU Deqing;ZHANG Haihong;CHEN Song(CNOOC Research Institute of Refining and Petrochemicals,Beijing 102200,China)

机构地区：[1]中海油炼油化工科学研究院,北京102200

出　　处：《无机盐工业》2022年第6期125-133,共9页Inorganic Chemicals Industry

基　　金：中国海油集团公司项目(CNOOC-KJ 135 FZDXM 00 LH 003-YJY-2017)。

摘　　要：介绍了孔结构优化对渣油加氢脱金属剂的影响。为提高脱金属剂的脱金属活性以及长周期运行稳定性,首先以工业参比失活脱金属剂的失活行为做指导,提出自制脱金属剂设计优化思路;随后在脱金属剂载体制备过程中,加入薄膜胶溶剂和高聚合度扩孔剂并调节水含量成功制备出具有更多大孔分布、更大孔容的载体。与工业参比脱金属剂相比,自制脱金属剂载体具有更多的300 nm孔分布,孔容提高约50%。自制脱金属剂对镍、钒总脱除能力比工业参比脱金属剂高2%~3%,并具有优异的长周期运转稳定性。自制脱金属剂有着更好的渣油加氢反应性能和稳定性,有较好的应用前景。The impact of pore structure optimization on demetallization catalysts for fixed bed residue hydrotreating was in⁃troduced.In order to improve the demetallization activity and long time operation stability of demetallization catalyst,firstly,based on the deactivation behavior of industrial deactivated demetallization catalyst,the optimal design idea of self⁃made demetallization catalyst was proposed.Then,in the preparation process of demetallizing agent carrier,film adhesive solvent and high degree of polymerization pore enlarging agent were added,and the carrier with more macropore distribution and larger pore volume was successfully prepared after adjusting the water content.Compared with industrial reference demetalli⁃zation catalyst,the self⁃made carrier had more pore distribution on 300 nm,and pore volume was increased by 50%.The pre⁃pared catalyst showed better capability on demetallization rate which was 2%~3%higher than that of the industrial refer⁃ence demetallization catalyst and had excellent long⁃term operation stability.The self⁃made demetallization catalysts had better demetallization activity and stability on residue hydrogenation and it had a good application prospect.

关 键 词：渣油加氢 脱金属剂 双峰孔 孔容 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]