ZSM-5性能调控及其催化裂解石油轻组分研究进展

Research progress on modification of ZSM-5 and its catalytic performance in cracking of light components in petroleum

总结了ZSM-5酸性和孔结构的调控方法,包括:碱金属与碱土金属、过渡金属、稀土金属、非金属元素以及复合金属的掺入调控酸性;酸碱处理、水蒸气处理和引入模板剂等调控孔道结构,并综述了近年来改性分子筛在石油轻组分催化裂解中的应用进展。在此基础上,分析了ZSM-5分子筛在催化裂解过程中存在的主要问题,并对其发展前景进行了展望。

This review summarizes the methods to modify the acidity and pore structure of ZSM-5:the introduction of alkali metals and alkaline earth metals,transition metals,rare earth metals,nonmetal elements and composite metals to regulate the acidity;treatment by acid-base,or water vapor treatment or introduction of a template agent to modify the channel structure.Moreover,the application of modified ZSM-5 in catalytic cracking of light components in petroleum in recent years is reviewed.Based on the current progress,the problems in catalytic cracking by ZSM-5 are analyzed,and the development prospects of ZSM-5 are given.