Mechanism for partial oxidation of methane to synthesis gas over titania catalysis.

• Autorzy: Steghuis A.G. , van Ommen J. G. , Lercher J. A.
• Konferencja: III Międzynarodowa Konferencja Catalysis and Adsorption in Fuel Processing and Environmental Protection. 15-18.09 1999, Kudowa Zdrój, Polska
• Języki publikacji: EN

Abstrakty

EN

Oxidation of methane over titania shows two parallel oxidation pathways, i.e., partial oxidation to CO + H2 + H2O and full oxidation to CO2 +2H2O. Both reactions proceed via a Mars van Krevelen mechanism with first order kinetics for methane and oxygen and are retarded by water. A mechanism is suggested in which methane is homolitically dissociated over O-(s) sites and via the formation and decomposition of a formaldehyde precursor reacted to CO, H2 and H2O. In parallel, CO2 is obtained from decomposition of bicarbonate that is formed via further oxidation of dioxymethylene.

Słowa kluczowe

EN

methane; oxidation; synthesis gas; titania; catalyst

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Prace Naukowe Instytutu Chemii i Technologii Nafty i Węgla Politechniki Wrocławskiej. Konferencje
• Rocznik: 1999
• Tom: Vol. 9, nr 56
• Strony: 21--30
• Opis fizyczny: Bibliogr. 27 poz., rys

Twórcy

autor

Steghuis A.G.

autor

van Ommen J. G.

autor

Lercher J. A.

• Catalytic Processes and Materials Faculty of Chemical Technolody University of Twente PO Box 217, Enschede The Netherlands