Aufsatz
Benzene Oxidation over Pt Loaded on Fly Ash Zeolite X
Abstract
In the present study, zeolite X (FANaX) was synthesized from coal fly ash (FA) by a two-step high-temperature method. In order to follow the effect of different contaminants in the starting coal ash, zeolite X was also synthesized from pure chemicals according to a classical recipe (NaX). Iron was loaded on this reference zeolite with the amount which was contained in the coal FA. The final catalytic samples were obtained by wet impregnation of Pt nanoparticles on both types of zeolite crystals. The most active samples in the benzene oxidation were the platinum-modified ones and, among them, the Pt-impregnated FA zeolite (Pt FANaX). The comparison of the catalytic activity of Pt FANaX with the reference PtFe NaX zeolite showed a temperature difference of 10 C in favor of Pt FANaX at 50% benzene conversion. From these results, it can be concluded that FA zeolites are a good, cheaper and environmentally friendly alternative to traditional zeolites, synthesized from pure chemicals, which can be applied in the preparation of catalysts for the purification of gaseous mixtures from harmful organic compounds.
Citation
In: Catalysts Volume 13 / Issue 7 (2023-07-20) eissn:2073-4344Sponsorship
Gefördert durch den Publikationsfonds der Universität KasselCitation
@article{doi:10.17170/kobra-202312019149,
author={Kavalchev, Yuri and Todorova, Totka and Kolev, Hristo and Merker, Daniel and Popov, Cyril},
title={Benzene Oxidation over Pt Loaded on Fly Ash Zeolite X},
journal={Catalysts},
year={2023}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2023$n2023 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/15252 3000 Kavalchev, Yuri 3010 Todorova, Totka 3010 Kolev, Hristo 3010 Merker, Daniel 3010 Popov, Cyril 4000 Benzene Oxidation over Pt Loaded on Fly Ash Zeolite X / Kavalchev, Yuri 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/15252=x R 4204 \$dAufsatz 4170 5550 {{Flugasche}} 5550 {{Zeolith}} 5550 {{Katalytische Oxidation}} 5550 {{Benzol}} 7136 ##0##http://hdl.handle.net/123456789/15252
2023-12-01T12:30:12Z 2023-12-01T12:30:12Z 2023-07-20 doi:10.17170/kobra-202312019149 http://hdl.handle.net/123456789/15252 Gefördert durch den Publikationsfonds der Universität Kassel eng Namensnennung 4.0 International http://creativecommons.org/licenses/by/4.0/ fly ash zeolite X Pt nanoparticles catalytic oxidation benzene 1. Introduction 660 Benzene Oxidation over Pt Loaded on Fly Ash Zeolite X Aufsatz In the present study, zeolite X (FANaX) was synthesized from coal fly ash (FA) by a two-step high-temperature method. In order to follow the effect of different contaminants in the starting coal ash, zeolite X was also synthesized from pure chemicals according to a classical recipe (NaX). Iron was loaded on this reference zeolite with the amount which was contained in the coal FA. The final catalytic samples were obtained by wet impregnation of Pt nanoparticles on both types of zeolite crystals. The most active samples in the benzene oxidation were the platinum-modified ones and, among them, the Pt-impregnated FA zeolite (Pt FANaX). The comparison of the catalytic activity of Pt FANaX with the reference PtFe NaX zeolite showed a temperature difference of 10 C in favor of Pt FANaX at 50% benzene conversion. From these results, it can be concluded that FA zeolites are a good, cheaper and environmentally friendly alternative to traditional zeolites, synthesized from pure chemicals, which can be applied in the preparation of catalysts for the purification of gaseous mixtures from harmful organic compounds. open access Kavalchev, Yuri Todorova, Totka Kolev, Hristo Merker, Daniel Popov, Cyril doi:10.3390/catal13071128 Flugasche Zeolith Katalytische Oxidation Benzol publishedVersion eissn:2073-4344 Issue 7 Catalysts Volume 13 false 1128
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