在微孔结构的ZSM-5沸石分子筛中构筑介孔,可以有效地解决ZSM-5分子筛在催化反应过程中的扩散传质和催化剂失活问题。重点阐述了在初始的合成体系中加入炭黑、介孔碳、表面活性剂等作为模板剂来构筑含介孔结构的ZSM-5和利用碱液或酸液对已合成的微孔的ZSM-5进行后处理来构筑介孔,并对含有介孔结构的ZSM-5的性质和相关的应用做了评价和展望。
Constructing mesopores in the microporous ZSM-5zeolite is an effective method to solve diffusion and deactivation issues of ZSM-5catalyst in the industrial catalytic process.The techniques to manufacture mesoporous ZSM-5zeolites are introduced by adding carbon black,mesoporous carbon and surfactants during the synthesis process or using post-treatment methods by alkali or acid aqueous with synthesized ZSM-5.Finally,some assessments and prospects on the related applications of mesoporous ZSM-5zeolites are prospected.