MOLECULAR MECHANISMS OF MTBE SYNTHESIS ON A SULFONIC-ACID ION-EXCHANGE RESIN

被引：25

作者：

TEJERO, J

CUNILL, F

IBORRA, M

机构：

[1] Chemical Engineering Department, University of Barcelona, Diagonal 647, 08028-BarcelonaSpain

来源：

JOURNAL OF MOLECULAR CATALYSIS | 1987年 / 42卷 / 02期

关键词：

CHEMICAL REACTIONS - Reaction Kinetics - ION EXCHANGE RESINS - Sulfonation - METHANOL - Applications;

D O I：

10.1016/0304-5102(87)85032-0

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：

Molecular mechanisms of methyl t-butyl ether (MTBE) synthesis by methanol addition to isobutene in the gaseous and liquid phases are presented as an example of general and specific acid catalysis by sulfonated ion exchange resins, respectively. As an example of general acid catalysis, a concerted mechanism with a cyclical intermediate of six centers is proposed for this reaction in gaseous phase. It is based on the LHHW kinetic model determined for the reaction that explains rate data in a statistically significant fashion. Analysis of the significance of the LHHW model shows that it is thermodynamically consistent. Therefore, we can assume that the kinetic model is a simplified picture of the molecular process.

引用

页码：257 / 268

页数：12

共 39 条

[1] MECHANISMS IN REACTION BETWEEN OLEFINS AND ALCOHOLS CATALYZED BY ION-EXCHANGE RESINS [J].