Methanol to propylene: Effect of phosphorus on a high silica HZSM-5 catalyst

被引：208

作者：

Liu, Jian

Zhang, Chenxi

Shen, Zhenhao

Hua, Weiming

Tang, Yi

Shen, Wei

Yue, Yinghong ^{[1
]}

Xu, Hualong

机构：

[1] Fudan Univ, Dept Chem, Shanghai Key Lab Mol Catalysis & Innovat Mat, Shanghai 200433, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2009年 / 10卷 / 11期

基金：

中国国家自然科学基金;

关键词：

Methanol; Propylene; High silica HZSM-5; Promoters; Phosphorus; Methanol to propylene (MTP); TO-HYDROCARBONS; ZEOLITE CATALYSTS; LIGHT ALKENES; O-COMPOUNDS; CONVERSION; DEACTIVATION; ZSM-5; SELECTIVITY; H-ZSM-5; OLEFINS;

D O I：

10.1016/j.catcom.2009.04.004

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：

Modified high silica HZSM-5 catalysts have been used to selectively transform methanol to propylene (MTP). The HZSM-5 catalyst with a Si/Al ratio of 220 exhibited satisfying catalytic performance (space time yield of propylene is up to 18 mmol/gh). The selectivity of propylene can be obviously affected by additives. P leads to a pronounced improvement of propylene selectivity up to 55.6% with complete conversion of methanol. The enhancement of propylene selectivity and catalytic life can be attributed to partial elimination of the strong acid sites on the HZSM-5 catalyst. (C) 2009 Elsevier B. V. All rights reserved.

引用

页码：1506 / 1509

页数：4

共 25 条

[1] Structural and mechanistic investigation of a phosphate-modified HZSM-5 catalyst for methanol conversion. [J].