High-Pressure Non-Catalytic Partial Oxidation of Methane

Savchenko, V.I.; Ozerskii, A.V.; Busilo, E.; Nikitin, A.V.; Sedov, I.V.; Arutyunov, V.S.

Авторы: Savchenko V.I., Ozerskii A.V., Busilo E., Nikitin A.V., Sedov I.V., Arutyunov V.S.
Журнал: Petroleum Chemistry
Год издания: 2026
Издательство: Pleiades Publishing, Ltd
Местоположение издательства: Road Town, United Kingdom
DOI: 10.1134/S0965544125601292
Аннотация: This study presents the results of detailed kinetic modeling for the high-pressure, non-catalytic partial oxidation of natural gas. The findings demonstrate the critical importance of reaction kinetics in determining the actual product distribution, particularly given the extended time required for reach equilibrium under these conditions. The influence of kinetics was evaluated across a pressure range of 1 to 100 bar. Although near-complete O2 conversion (>99.99%) is achieved very rapidly at high pressures, a significant amount of unreacted methane remains at this point. Attaining high methane conversion in the post-flame zone requires a time frame that is several orders of magnitude longer. This is attributed to the increasing impact of the partial pressure of H2 produced in this zone, which shifts the equilibrium in the reaction system (2CH4 ↔ C2H4 + 2H2 ↔ C2H2 + 3H2) to the left. This shift, in turn, reduces both the acetylene content in the gas mixture and its consumption via reaction with OH• radicals. Furthermore, an increase in pressure promotes the influence of CO methanation, thereby limiting the maximum achievable CH4 conversion.
Добавил в систему: Савченко Валерий Иванович

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High-Pressure Non-Catalytic Partial Oxidation of Methaneстатья