The kinetic patterns of the attainment of the equilibrium product composition in non-catalytic pro cesses of partial oxidation and of steam and carbon dioxide reforming of hydrocarbons in the temperature range 1400–1800 K, characteristic of these processes, were analyzed. The need for such analysis is caused by the rapidly increasing consumption of natural gas as a chemical feedstock and by growing attention to environmental prob lems, in particular, to a decrease in СО2 emissions or to partial CO2 utilization. The forward and reverse water gas shift reactions (WGSRs) play an important role in approach to the equilibrium product composition in these processes. Analysis has shown that the elementary reactions characteristic of forward and reverse WGSRs start to play a significant role long before the equilibrium in the system is attained. Already in the intermediate steps of the process, the distribution of the major reaction products, Н2, СО, Н2О, and СО2, almost corresponds to the equilibrium value of Kt = ([H2][CO2])/([CO][H2O]), close to the WGSR equilibrium constant Keq, and further conversion of the products occurs at Kt values close to Keq.

Equilibrium Composition of Products Formed by Non-catalytic Conversion of Hydrocarbons / Savchenko, V. I.; Zimin, Ya. S.; Busillo, E.; Nikitin, A. V.; Sedov, I. V.; Arutyunov, V. S.. - In: PETROLEUM CHEMISTRY. - ISSN 0965-5441. - (2022). [10.1134/s0965544122050048]

Equilibrium Composition of Products Formed by Non-catalytic Conversion of Hydrocarbons

E. Busillo;
2022

Abstract

The kinetic patterns of the attainment of the equilibrium product composition in non-catalytic pro cesses of partial oxidation and of steam and carbon dioxide reforming of hydrocarbons in the temperature range 1400–1800 K, characteristic of these processes, were analyzed. The need for such analysis is caused by the rapidly increasing consumption of natural gas as a chemical feedstock and by growing attention to environmental prob lems, in particular, to a decrease in СО2 emissions or to partial CO2 utilization. The forward and reverse water gas shift reactions (WGSRs) play an important role in approach to the equilibrium product composition in these processes. Analysis has shown that the elementary reactions characteristic of forward and reverse WGSRs start to play a significant role long before the equilibrium in the system is attained. Already in the intermediate steps of the process, the distribution of the major reaction products, Н2, СО, Н2О, and СО2, almost corresponds to the equilibrium value of Kt = ([H2][CO2])/([CO][H2O]), close to the WGSR equilibrium constant Keq, and further conversion of the products occurs at Kt values close to Keq.
2022
natural gas; partial oxidation; steam reforming; carbon dioxide reforming; equilibrium product composition; water gas shift reaction; equilibrium constant
01 Pubblicazione su rivista::01a Articolo in rivista
Equilibrium Composition of Products Formed by Non-catalytic Conversion of Hydrocarbons / Savchenko, V. I.; Zimin, Ya. S.; Busillo, E.; Nikitin, A. V.; Sedov, I. V.; Arutyunov, V. S.. - In: PETROLEUM CHEMISTRY. - ISSN 0965-5441. - (2022). [10.1134/s0965544122050048]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1656631
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