Direct observation of olefin homologations on zeolite ZSM-22 and its implications to methanol to olefin conversion

被引：85

作者：

Cui, Zhi-Min ^{[1
,2
,3
]}

Liu, Qiang ^{[1
,2
,3
]}

Ma, Zhuo ^{[1
,2
,3
]}

Bian, Shao-Wei ^{[1
,2
,3
]}

Song, Wei-Guo ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China

[2] Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China

[3] Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China

来源：

JOURNAL OF CATALYSIS | 2008年 / 258卷 / 01期

基金：

中国国家自然科学基金;

关键词：

ZSM-22; homologation; methanol to olefin; zeolite;

D O I：

10.1016/j.jcat.2008.05.029

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this paper, we studied olefin homologation reactions on zeolite ZSM-22, whose one dimensional pore structure inhibited the hydrocarbon pool mechanism and secondary reactions of the methanol to olefin (MTO) conversion. Homologation of ethylene, propylene and styrene were directly observed between C-13 labeled methanol and olefins. isotopic tracking shows high selectivity for homologation reaction, e.g. from ethylene, propene has one C-13 atom, butene has two C-13 atoms, and pentene has three C-13 atoms. Homologation of styrene's side chain also showed very specific isotopic pattern. The role of olefin homologation is speculated as a key reaction during the induction time of MTO process. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：83 / 86

页数：4

共 26 条

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