Catalytic combustion of volatile organic compounds in binary mixtures over MnOx/Al2O3 catalyst

被引:110
作者
Aguero, Fabiola N. [1 ]
Barbero, Bibiana P. [1 ]
Gambaro, Luis [2 ]
Cadus, Luis E. [1 ]
机构
[1] UNSL CONICET, Inst Invest Tecnol Quim INTEQUI, RA-5700 San Luis, Argentina
[2] UNLP, CONICET, CINDECA, Fac Ciencias Exactas, La Plata, Buenos Aires, Argentina
关键词
Alumina; Manganese oxide; VOC mixtures; Total oxidation; VOC MIXTURES; OXIDATION; ETHANOL; OXIDES; DESTRUCTION; MANGANESE; CHEMISTRY; PLATINUM;
D O I
10.1016/j.apcatb.2009.05.012
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 work the catalytic performance of an alumina supported manganese oxide catalyst in ethanol, ethyl acetate, toluene and mixtures of them was studied. The reactivity of each VOC investigated increased in the following order: ethanol > ethyl acetate > toluene. Toluene affects acetaldehyde yields, favoring partial combustion of ethanol and ethyl acetate. There is a competition for the adsorption sites between ethanol and ethyl acetate because both are polar molecules. Mixture effect decreases when the conversion temperature range of each component in the mixture is different, as in the case of ethanol-toluene and ethyl acetate-toluene mixture, consequently, the total conversion temperature is determined by the temperature at which the most difficult molecule is oxidized, in this case toluene. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:108 / 112
页数:5
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