Total oxidation of model volatile organic compounds over some commercial catalysts

[Display omitted] ► Three commercial catalysts tested in total oxidation of VOCs at lab scale. ► Cu–Mn/alumina the most active and selective in oxidation of ethanol. ► Pt–Pd/alumina the most suitable for toluene oxidation. ► Pt–Pd/alumina–ceria the most active in dichloromethane oxidation. ► The hig...

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Vydáno v:Applied catalysis. A, General Ročník 443-444; s. 40 - 49
Hlavní autoři: Matějová, Lenka, Topka, Pavel, Jirátová, Květuše, Šolcová, Olga
Médium: Journal Article
Jazyk:angličtina
Vydáno: Elsevier B.V 07.11.2012
Témata:
Aluminum
Catalysis
Catalysts
Dichloromethane
Ethanol
Ethyl alcohol
Oxidation
Platinum
Toluene
Volatile organic compounds
Volatile organic compounds
Dichloromethane
Oxidation
Ethanol
Toluene
ISSN:0926-860X, 1873-3875
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Shrnutí:[Display omitted] ► Three commercial catalysts tested in total oxidation of VOCs at lab scale. ► Cu–Mn/alumina the most active and selective in oxidation of ethanol. ► Pt–Pd/alumina the most suitable for toluene oxidation. ► Pt–Pd/alumina–ceria the most active in dichloromethane oxidation. ► The highest HCl yield achieved with Pt–Pd/alumina. Commercial VOC oxidation catalysts can be used as comparative materials during development of new or improved catalysts. The objective of this study was to investigate physicochemical properties of EnviCat® commercial catalysts and their performance in total oxidation of three model compounds (dichloromethane, toluene and ethanol) at laboratory scale. The reactivity of model VOC was decreasing in the order ethanol>toluene>dichloromethane. The Cu–Mn/Al catalyst was found to be the most active and selective catalyst in ethanol oxidation. In oxidation of dichloromethane, the Pt–Pd/Al–Ce catalyst with 0.10wt% Pt+Pd was the most active, while the most selective one (giving the highest HCl yield) was the Pt–Pd/Al catalyst containing 0.24wt% Pt+Pd. In toluene oxidation, the Pt–Pd/Al catalyst with 0.24wt% Pt+Pd possessed the highest activity; the selectivity to CO2 was 100% for all investigated catalysts. Obtained results showed that the performance of commercial catalysts in laboratory scale tests can be different from that declared by catalyst supplier. A possible difference in catalytic performance at industrial and laboratory scale should be taken into account when industrial catalysts are used in laboratory scale tests.
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ISSN:0926-860X
1873-3875
DOI:10.1016/j.apcata.2012.07.018