Kinetic model of CO2 photocatalytic reduction over TiO2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F09%3A00022022" target="_blank" >RIV/61989100:27360/09:00022022 - 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

Kinetic model of CO2 photocatalytic reduction over TiO2

Popis výsledku v původním jazyce

Kinetic of CO2 photocatalytic reduction by water vapour powder was examined in a stirred batch annular reactor with a suspended TiO2 catalyst at 110 kPa. An 8 W Hg lamp with a peak light intensity at 254 nm was used for illumination (0-24 hour). Two mainproducts were determined: methane in gas phase and methanol in liquid phase. Hydrogen and low amounts of carbon oxide were also detected. Kinetic data were evaluated by non-linear regression method and plausible mechanism was proposed. First of all carbon monoxide is formed, from which both methane and methanol is formed in the parallel reactions. The products, CO and O2, were adsorbed and photo-oxidized in a reverse reaction since they especially CO, were not effectively desorbed and diffused from thecatalyst surface. The comparison of experimental CH4 and CH3OH yields and yields determined according kinetic model was made.

Název v anglickém jazyce

Kinetic model of CO2 photocatalytic reduction over TiO2

Popis výsledku anglicky

Kinetic of CO2 photocatalytic reduction by water vapour powder was examined in a stirred batch annular reactor with a suspended TiO2 catalyst at 110 kPa. An 8 W Hg lamp with a peak light intensity at 254 nm was used for illumination (0-24 hour). Two mainproducts were determined: methane in gas phase and methanol in liquid phase. Hydrogen and low amounts of carbon oxide were also detected. Kinetic data were evaluated by non-linear regression method and plausible mechanism was proposed. First of all carbon monoxide is formed, from which both methane and methanol is formed in the parallel reactions. The products, CO and O2, were adsorbed and photo-oxidized in a reverse reaction since they especially CO, were not effectively desorbed and diffused from thecatalyst surface. The comparison of experimental CH4 and CH3OH yields and yields determined according kinetic model was made.

Druh

D - Stať ve sborníku

CEP obor

CH - Jaderná a kvantová chemie, fotochemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

36th International Conference of Slovak Society of Chemical Engineering

ISBN

978-80-227-3072-3

ISSN

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e-ISSN

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Počet stran výsledku

14

Strana od-do

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Název nakladatele

Slovak Society of Chemical Engineering,

Místo vydání

Bratislava

Místo konání akce

Tatranské Matliare, SR

Datum konání akce

26. 5. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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