Effect of Oxygen Bulk Diffusion in Nickel on Self-Sustained Oscillations in the Catalytic Oxidation of Methane - Conference attendances | Sciact - CRIS-system of Boreskov Institute of Catalysis

Effect of Oxygen Bulk Diffusion in Nickel on Self-Sustained Oscillations in the Catalytic Oxidation of Methane Conference attendances

Language

Английский

Participant type

Стендовый

Conference

EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015 , Казань

Authors

Ustyugov Valerij Valerʹevich ¹ , Finkelʹshtejn E. A. ² , Lashina Elena A. ¹ , Chumakova Nataliya Alekseevna ¹ , Gornov Aleksandr Yurʹevich ² , Kaichev Vasily Vasilievich ¹ , Bukhtiyarov Valerii Ivanovich ¹

Affiliations

1	Boreskov Institute of Catalysis SB RAS
2	Institute for System Dynamics and Control Theory SB RAS

The model of methane oxidation over nickel was amended with a step of diffusion of oxygen from the nickel surface into its volume, and the influence of this step on the characteristics of the oscillatory regime was studied. Solutions obtained in the models with and without diffusion of oxygen into nickel were compared. In the self-oscillatory regime of the reaction, the concentration of subsurface oxygen was found to oscillate synchronously with concentrations of reaction products. The addition of the oxygen diffusion into the model leads to the appearance of an induction period, which is consistent with experimental data.

Ustyugov V.V. , Finkelʹshtejn E.A. , Lashina E.A. , Chumakova N.A. , Gornov A.Y. , Kaichev V.V. , Bukhtiyarov V.I.
Effect of Oxygen Bulk Diffusion in Nickel on Self-Sustained Oscillations in the Catalytic Oxidation of Methane
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources” 30 Aug - 4 Sep 2015