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Co-treatment of industrial air streams using A.O.P. and adsorption processes

Monneyron, Pierre and De La Guardia, A and Manero, Marie-Hélène and Oliveros, Esther and Maurette, Marie-Thérèse and Benoit-Marquié, Florence Co-treatment of industrial air streams using A.O.P. and adsorption processes. (2003) International Journal of Photoenergy, 5 (3). 167-174. ISSN 1110-662X

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Official URL: https://doi.org/10.1155/S1110662X03000291

Abstract

Coupling adsorption with two different photochemical oxidation methods was investigated, in order to treat industrial gaseous effluents containing a low concentration of Volatile Organic Compounds (VOC). Prior to adsorption/photocatalysis cyclic study, new TiO2 based catalysts were prepared by impregnating commercial zeolites in pellets form using a sol-gel technique. Scanning Electronic Microscopy observations linked to BET and adsorption equilibrium measurements of two VOC (1-butanol or BuOH and methyl-ethyl-ketone or MEK) showed that TiO2 happened to. x on the inert binder, without significant modification of support properties. A specific diffusion cell was used to produce dilute polluted air streams for each VOC in dynamic experiments, in which adsorption and photodegradation phases were alternatively carried out. Adsorption/photocatalysis co-treatment unable the total degradation of BuOH, and the regeneration of adsorbent. When using V-UV photolysis, pure zeolites were used, irradiated at 172 nm with an xenon excimer lamp. Excellent results were observed, since a total and rapid degradation was obtained for both VOC, especially thanks to a determining role of ozone.

Item Type:Article
HAL Id:hal-02024293
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Other partners > Universität Karlsruhe (GERMANY)
Laboratory name:
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Deposited By: Marie-helene MANERO
Deposited On:19 Feb 2019 08:04

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