Přednáška: Kinetika aktivace Mo/ ZSM-5 katalyzátoru pro neoxidativní dehydroaromatizaci ve strukturovaném reaktoru

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F05%3A00015280" target="_blank" >RIV/60461373:22310/05:00015280 - 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

Přednáška: Kinetics of self-activation of Mo-exchanged H-ZSM-5 catalysts for methane non-oxidative dehydro-aromatization in structured reactor

Popis výsledku v původním jazyce

Mo-H/ZSM-5 catalysts have been developed as the most active catalyst to activate methane to higher hydrocarbons in non-oxidative environment. It is well known that exchanged (Mo2O7)2- dimers are formed during treatment in air of MoO3 / H-ZSM-5 mixtures.In the next step the (Mo2O7)2- is reduced by methane to form of catalytically active Mo carbide-like species. Our study addresses the kinetics of Mo carbide formation accounting for solid-gas heterogeneous reaction and transport phenomena in ZSM-5 structure.Gas-solid reactions involving methane and exchanged Mo2O72- dimers resulting from treatment in air of Mo-precursors/H-ZSM-5 mixtures are described in terms of the heterogeneous gas-solid model, where structural parameters of ZSM-5 matrix and Mo-precursors initial concentration distribution are incorporated in mathematical description of the progress of the activation reaction. It is seen that the overall reaction rate is considered to have four components, namely (i) gas phase mass t

Název v anglickém jazyce

Přednáška: Kinetics of self-activation of Mo-exchanged H-ZSM-5 catalysts for methane non-oxidative dehydro-aromatization in structured reactor

Popis výsledku anglicky

Mo-H/ZSM-5 catalysts have been developed as the most active catalyst to activate methane to higher hydrocarbons in non-oxidative environment. It is well known that exchanged (Mo2O7)2- dimers are formed during treatment in air of MoO3 / H-ZSM-5 mixtures.In the next step the (Mo2O7)2- is reduced by methane to form of catalytically active Mo carbide-like species. Our study addresses the kinetics of Mo carbide formation accounting for solid-gas heterogeneous reaction and transport phenomena in ZSM-5 structure.Gas-solid reactions involving methane and exchanged Mo2O72- dimers resulting from treatment in air of Mo-precursors/H-ZSM-5 mixtures are described in terms of the heterogeneous gas-solid model, where structural parameters of ZSM-5 matrix and Mo-precursors initial concentration distribution are incorporated in mathematical description of the progress of the activation reaction. It is seen that the overall reaction rate is considered to have four components, namely (i) gas phase mass t

Druh

O - Ostatní výsledky

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/GA104%2F99%2F0432" target="_blank" >GA104/99/0432: Katalytická dehydrogenace a aromatizace methanu se separací produktů mikroporézními membránami</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2005

Kód důvěrnosti údajů

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