Modeling of co-oxidation of CO and propylene on Pt/Al2O3

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43914088" target="_blank" >RIV/60461373:22340/17:43914088 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modeling of co-oxidation of CO and propylene on Pt/Al2O3

Popis výsledku v původním jazyce

During co-oxidation of high concentrations of CO and propene (C3H6) over a platinum-based catalyst, ethylene, formate and acetate can be formed as surface by-products of partial propene oxidation (Hazlett &amp; Epling, 2016). These intermediates cause inhibition of the ongoing reactions. Contrary to a well-known mutual inhibition between CO and C3H6, described in (Voltz et al., 1973) that leads to a shift of reaction light-off towards higher temperatures, formation of the propene partial oxidation products results in two additional inflections on the light-off curve of CO instead of a smooth curve. Gaseous by-products of partial propene oxidation were also detected (Hazlett et al., 2017). Among acetone, ethylene, acetaldehyde, acetic acid and formaldehyde, CO can be formed especially at lower oxygen concentration. In this study, we aim on a practical impact of the partial propene oxidation on the catalyst performance. Furthermore, we present a global mathematical model based on the experimental investigation of the influence of various oxygen concentrations and presence of NOx on CO and C3H6 oxidation.

Název v anglickém jazyce

Modeling of co-oxidation of CO and propylene on Pt/Al2O3

Popis výsledku anglicky

During co-oxidation of high concentrations of CO and propene (C3H6) over a platinum-based catalyst, ethylene, formate and acetate can be formed as surface by-products of partial propene oxidation (Hazlett &amp; Epling, 2016). These intermediates cause inhibition of the ongoing reactions. Contrary to a well-known mutual inhibition between CO and C3H6, described in (Voltz et al., 1973) that leads to a shift of reaction light-off towards higher temperatures, formation of the propene partial oxidation products results in two additional inflections on the light-off curve of CO instead of a smooth curve. Gaseous by-products of partial propene oxidation were also detected (Hazlett et al., 2017). Among acetone, ethylene, acetaldehyde, acetic acid and formaldehyde, CO can be formed especially at lower oxygen concentration. In this study, we aim on a practical impact of the partial propene oxidation on the catalyst performance. Furthermore, we present a global mathematical model based on the experimental investigation of the influence of various oxygen concentrations and presence of NOx on CO and C3H6 oxidation.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

<a href="/cs/project/GA17-26018S" target="_blank" >GA17-26018S: Reakční kinetika v oxidačních katalyzátorech pro konverzi dieselových výfukových plynů za nízkých teplot</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

PROCEEDINGS 44th International Conference of the Slovak Society of Chemical Engineering

ISBN

978-80-89597-58-1

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

671-676

Název nakladatele

Slovak Society of Chemical Engineering

Místo vydání

Bratislava

Místo konání akce

Demänovská dolina

Datum konání akce

22. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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