催化裂化催化剂钒中毒机理及抗钒研究进展  

Vanadium poisoning mechanism of catalytic cracking catalysts&research progress on vanadium resistance

作　　者：程宇深 高迪 韩蕾 王鹏 CHENG Yushen;GAO Di;HAN Lei;WANG Peng(SINOPEC Research Institute of Petroleum Processing Co.,Ltd.,Beijing 100083,China)

机构地区：[1]中石化石油化工科学研究院有限公司,北京100083

出　　处：《应用化工》2024年第9期2187-2191,2196,共6页Applied Chemical Industry

基　　金：国家重点研发计划资助(2022YFB3504000)。

摘　　要：简述了FCC催化剂的钒中毒机理及其抗钒策略研究进展,其方法包括向原料油中加入液体钝钒剂、捕钒剂和催化剂混合使用,对Y型分子筛或催化剂基质进行稀土或碱土金属改性并讨论了各方法的优缺点。面向增产低碳烯烃的需求,叙述了钒对ZSM-5分子筛催化剂的影响及其抗钒策略,提出了以ZSM-5分子筛为主的增产低碳烯烃催化剂抗钒研究思路。指出了催化剂抗钒改性研究的不足,提出了催化剂改性所面临的挑战和未来发展方向。The mechanism of vanadium poisoning and anti-vanadium methods of catalytic cracking catalysts are reviewed.The methods include adding vanadium passivators to raw oil,mixing vanadium trappers with FCC catalysts and modifying Y zeolites or catalyst matrix with rare earth or alkaline earth metals and their advantages and disadvantages were discussed.The effect of vanadium on ZSM-5 zeolites and its vanadium strategy were briefly described for increasing the production of low carbon olefin.The research idea of vanadium resistance of low carbon olefin catalysts based on ZSM-5 zeolite is put forward.The deficiencies of the research on vanadium resistant modification of catalysts are pointed out,and the challenges and future development direction of catalyst modification are proposed.

关 键 词：FCC催化剂 钒中毒 抗钒方法 ZSM-5 

分 类 号：TQ426[化学工程]