Ethanol and Methane Selective Oxidation into Syngas over Nickel and Ruthenium Containing MnCr2-xFexO4 Spinel Catalyst - Доклады на конференциях | Sciact - CRIS-система Института катализа

Ethanol and Methane Selective Oxidation into Syngas over Nickel and Ruthenium Containing MnCr2-xFexO4 Spinel Catalyst Доклады на конференциях

Язык

Английский

Тип доклада

Стендовый

Конференция

EuropaCat-XIII: 13th European Congress on Catalysis
27-31 авг. 2017 , Florence

Авторы

Simonov M.N. ^1,2 , Smal E.A. ^1,2 , Rogov V.A. ^1,2 , Sadykov V.A. ^1,2 , Pinaeva L.G. ¹ , Sadovskaya E.M. ^1,2 , Eremeev N.F. ¹

Организации

1	Институт катализа им. Г.К. Борескова СО РАН
2	Новосибирский национальный исследовательский государственный университет

Catalysts based on oxides with a high lattice oxygen mobility and reactivity are known to be able to efficiently transform ethanol into syngas by selective oxidation. Mechanism of this reaction as well as the lattice oxygen mobility over spinel-like Ni+Ru/MnCr2-xFexO4 catalyst were studied by using kinetic methods, SSITKA and pulse microcalorimetry. C-C bond rupture in ethanol molecule seems to be the rate-determining step, while C-H bond breaking in the ethanol dehydrogenation step giving acetaldehyde proceeds easily. The mechanism is described by step-wise red–ox scheme including ethanol oxidative decomposition on metallic sites with participation of oxygen species located at the metal-oxide interface followed by fast reoxidation of partially reduced support sites by O2. A high oxygen mobility in spinel support appears to be the reason of catalyst resistance to coke formation.

Simonov M.N. , Smal E.A. , Rogov V.A. , Sadykov V.A. , Pinaeva L.G. , Sadovskaya E.M. , Eremeev N.F.
Ethanol and Methane Selective Oxidation into Syngas over Nickel and Ruthenium Containing MnCr2-xFexO4 Spinel Catalyst
EuropaCat-XIII: 13th European Congress on Catalysis 27-31 Aug 2017