关键词: 分子筛, 碱处理, 反应动力学, 沸石分子筛改性, 扩散

Abstract: This review deals with various factors，including alkali-treatment conditions and Si/Al ratios and templates of parent zeolites，affecting the mesoporosity formed in zeolites by means of alkali treatment. In addition，the progress of the applications of meso-microporous zeolites prepared by alkali-treatment is presented，focusing on their applications to the catalytic reactions of alkylation，isomerization，cracking，and alcohol alkylation. The introduction of mesopores in zeolites by alkaline treatment can significantly shorten the characteristic length of molecule diffusion through micropores in zeolites，enhancing the apparent activity of the catalytic reactions and improving the catalytic stability of zeolites. Further studies，including clarification the mechanism of the introduced mesoporosity by alkali-treatment，the effect of alkali-treatment on the framework and acidity，as well as extending the application scope of the prepared meso-microporous zeolites，are expected.

Key words: molecular sieves, alkaline treatment, reaction kinetics, zeolite modification, diffusion