Features of Multicomponent Mass Transfer in Gas Mixtures Containing Hydrocarbon Components

Vladimir N. Kossov, Olga V. Fedorenko, Dauren B. Zhakebayev

2019

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DOI 10.1002/ceat.201800604
Data confidence 70 medium
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Abstract

Abstract The features characterizing the transition from a diffusion process to the concentration gravitational convection in multicomponent gas mixtures containing hydrocarbon components are analyzed. It is demonstrated that this transition is possible due to the difference in interdiffusion coefficients of components, initial concentration of components, and the pressure of the experiment. A mathematical model for describing the transition from the diffusion process to the concentration gravitational convection in multicomponent gas mixtures is considered. The key feature indicating the transfer from the diffusion regime to the convective one is the curvature of an isoline of the heavy component of the gas mixture.