结晶度
甲醇
ZSM-5型
催化作用
溶剂
化学工程
沸石
材料科学
吸附
化学
有机化学
结晶学
工程类
作者
Ziyu Liu,Dan Wu,Shu Ren,Xinqing Chen,Minghuang Qiu,Xian Wu,Chengguang Yang,Gaofeng Zeng,Yuhan Sun
出处
期刊:Chemcatchem
[Wiley]
日期:2016-08-25
卷期号:8 (21): 3317-3322
被引量:30
标识
DOI:10.1002/cctc.201600896
摘要
Abstract ZSM‐5 crystals with controllable c ‐axis length were successfully synthesized through a one‐pot solvent‐free route, with urea as an additive. X‐ray diffraction patterns (XRD) show that the prepared samples exhibit high crystallinity. N 2 adsorption–desorption isotherms and mercury intrusion porosimetry (MIP) analysis together with TEM observations indicate that micro‐, meso‐, and macropores exist in the obtained samples. Catalytic tests for the methanol to gasoline (MTG) conversion showed that the prepared c ‐axis oriented hierarchical ZSM‐5, which allow fast mass transfer, exhibited both 100 % methanol conversion and far longer lifetime (900 h) than those of ZSM‐5 with conventional morphology (350 h) in the MTG reaction. The enhanced MTG performance by the c ‐axis oriented zeolite under one‐pot solvent‐free synthesis is of great importance as it is easily scaled‐up for industrial applications.
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