SURFACE-REACTIONS OF BROMINATED ARENES AS A MODEL FOR THE FORMATION OF CHLORINATED DIBENZODIOXINS AND DIBENZOFURANS IN INCINERATION - INHIBITION BY ETHANOLAMINE

被引：51

作者：

LIPPERT, T

WOKAUN, A

LENOIR, D

机构：

[1] Physical Chemistry II, University of Bayreuth

[2] GSF-Forschungszentrum für Umwelt und Gesundheit, Institut für Ökologische Chemie, W-8042 Neuherberg, München

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1991年 / 25卷 / 08期

关键词：

D O I：

10.1021/es00020a019

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The aryl coupling reaction of bromobenzene on alumina-supported copper catalysts has been studied as model for dioxin formation. The reaction was monitored in situ by transmittance FTIR spectroscopy. Time-dependent changes in the spectra were recorded during addition of bromobenzene to the carrier gas stream. Both coupling of phenyl intermediates to yield biphenyls and formation of phenol and phenolate were observed. Novel approaches to inhibit the coupling reaction of aryl halides by addition of ethanolamine to the catalyst surface were studied. The resulting inhibition was attributed to site blocking and irreversible deactivation of the copper surface due to imine and nitride formation.

引用

页码：1485 / 1489

页数：5

共 27 条

[11] MECHANISM OF CHLORINATION OF AROMATIC-COMPOUNDS ADSORBED ON THE SURFACE OF FLY-ASH FROM MUNICIPAL INCINERATORS [J].