天然气化工2019，Vol.44Issue(4)：11-18,8.
ZSM-5分子筛晶体形貌调控及其MTP催化性能研究
Tuning crystal morphology of ZSM-5 zeolite and its effect on MTP catalytic performance
摘要
Abstract
The nano and flake particle ZSM-5 zeolites were synthesized, respectively, via tuning starting gel Si/Al ratio and adding crystal growth inhibitor. The physicochemical properties of the nano and flake ZSM-5 zeolites with similar Si/A1 ratio were systematically investigated, and their catalytic properties in methanol to propylene (MTP) reaction were evaluated and compared. The results showed that the crystallinity, Al content and Al distribution of both zeolites were similar. However, the external specific surface area and the adsorption capacity of cyclohexane were higher for the nano particle ZSM-5 zeolite, and the length along the b axis of crystal was thinner and the adsorption rate was higher for the flake particle ZSM-5 zeolite. The nano particle ZSM-5 zeolite exhibited longer catalytic lifetime (100h) and higher propylene and butylenes selectivity in MT Preaction.关键词
ZSM-5分子筛；晶体形貌；扩散；酸性；甲醇制丙烯（MTP）Key words
ZSM-5 molecular sieve/ crystal morphology/ diffusion/ acidity/ methanol to propylene (MTP)分类
化学化工引用本文复制引用
袁德林1,邢爱华1*,张妮妮2,刘华1,缪平1,崔立山3,孙琦*1..ZSM-5分子筛晶体形貌调控及其MTP催化性能研究[J].天然气化工,2019,44(4):11-18,8.基金项目
神华集团科技创新项目(No.:ST930014SH03) （No.:ST930014SH03）
