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Catalytic removal of propene and toluene in air over noble metal catalyst

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In this paper we present the study of catalytic oxidation of volatile organic compound (VOC) traces in air over Pt/-Al2O3 catalysts. The study was carried out using a laboratory fixed-bed catalytic reactor (FBCR) with catalytic oxidation of propene and toluene as model reactions. For better understanding of catalytic activity in a FBCR, the influence of operating parameters such as of platinum (Pt) loading, total gas flow rate, VOC concentration, and oxygen content were studied. The results showed that catalytic activity increases with increase in VOC concentration and a decrease in total gas flow rate. This displayed behaviour is instrumental to working at a low temperature region for complete oxidation of volatile organic compounds.

Nous présentons dans cet article l’étude de l’oxydation catalytique de traces de composés organiques volatils (COV) dans l’air au-dessus de catalyseurs Pt/-Al2O3. L’étude a été réalisée dans un réacteur catalytique en lit fixe (RCLF) à l’échelle du laboratoire en utilisant l’oxydation catalytique du propène et du toluène comme réactions modèles. Afin de mieux comprendre l’activité catalytique dans le RCLF, nous avons examiné l’influence des paramètres de fonctionnement tels que la charge en platine (Pt), le débit total de gaz, la concentration en COV et la teneur en oxygène. Les résultats montrent que l’activité catalytique augmente avec l’accroissement de la concentration en COV et la diminution du débit total de gaz. Ce comportement observable est la clé pour l’oxydation complète des COV dans les régions à basses températures.

Document Type: Research Article

Publication date: December 1, 2009

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  • Published since 1974, this monthly publication is the official journal of the Canadian Society for Civil Engineering. It contains articles on environmental engineering, hydrotechnical engineering, structure engineering, construction engineering, engineering mechanics, and engineering materials, and a history of civil engineering. Contributors include recognized researchers and practitioners in industry, government, and academe. New developments in engineering design and construction are also featured.
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