Designing of Hollow ZSM-5 with Controlled Mesopore Sizes To Boost Gasoline Production from Syngas

作者：Yanfei Xu, Jie Wang, Guangyuan Ma, Jianghui Lin, Mingyue Ding · 发表于：ACS Sustainable Chemistry & Engineering · 年份：2019 · DOI：10.1021/acssuschemeng.9b05217 · 被引用次数：67 · 研究领域：Zeolite Catalysis and Synthesis、Catalytic Processes in Materials Science、Catalysts for Methane Reforming

Hollow mesoporous ZSM-5 zeolite is synthesized through a method of alkaline treatment with the TPAOH/NaOH mixed solution. The amount and pore size distribution of mesopores in the shell of hollow zeolite can be exactly controlled by tuning the concentration of Na + cations in the alkaline solution. The hollow mesoporous zeolite is applied to the selective conversion of syngas into aromatic-rich gasoline. The newly created mesopores play crucial roles in enhancing the C 5–11 selectivity and suppressing the C 2–4 selectivity by accelerating the mass transport, avoiding the repeated hydrocracking in the small microporous channel of ZSM-5 zeolite. Besides, the hollow mesoporous zeolite exhibits excellent catalytic stability, displaying a potential pathway for further industrial applications.