Abstract
In the framework of the competing adsorption model in the limit of strong adsorption a model of mass transfer of two-component gas through an absorbing porous body was developed. The model includes a system of two related equations. The first integral of the system is found, by which the problem is converted to a self-similar form. Two criteria relations defining the type of problem solution are established. The first of them includes the ratio of the threshold adsorption concentrations. At values of this parameter greater than 100 or less than 0.01, a pronounced displacement of one of the gas components inward the adsorbent is observed. The second parameter is proportional to the ratio of the initial concentrations of components and affects the mass of gas components absorbed by the adsorbent. Self-similar expressions are obtained for the distribution of the absorbed mass and the total absorbed mass of the gas components. For the air-titanium system, barothermal relationships of the depth of gas penetration into the adsorbent and the absorbed mass of components are calculated. It was found that for nitrogen-oxygen air mixture, the masses of absorbed nitrogen and oxygen by porous titanium practically coincide.
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