Kinetics of photocatalytic VOCs abatement in a standardized reactor

被引：47

作者：

Doucet, N. ^{[1
]}

Bocquillon, F. ^{[1
]}

Zahraa, O. ^{[1
]}

Bouchy, M. ^{[1
]}

机构：

[1] Ecole Natl Super Ind Chim, Inst Natl Polytech Lorraine, Dept Chim Phys React, UMR 7630, F-54001 Nancy, France

来源：

CHEMOSPHERE | 2006年 / 65卷 / 07期

关键词：

VOCs abatement; photocatalytic reactor; kinetics; standard reactor; air pollution;

D O I：

10.1016/j.chemosphere.2006.03.061

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A standardized micro-pilot scale continuous flow apparatus has been built up, using two types of differential photoreactors, and equipped with a refined control of the working conditions in order to study the photocatalytic degradation as a way to abate VOCs in air. Kinetic measurements have been carried out on trichloroethylene (TCE), methanol and benzene as model pollutants. The absence of diffusional limitation and of reaction product effect on the kinetics have both been demonstrated under our working conditions. The influences of concentration, light flux and temperature on the initial degradation rate have been studied. A simple Langmuir-Hinshel-wood kinetic model has been verified for TCE and methanol, whereas benzene degradation was more complex and did not follow this simple mechanism. The determined experimental data aim at being useful in the scaling-up of photocatalytic reactors. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：1188 / 1196

页数：9

共 23 条

[1] Photocatalytic destruction of VOCs in the gas-phase using titanium dioxide [J].