Abstract

An adequate mathematical model of the dynamics of the nonequilibrium isothermal adsorption of carbon dioxide in the absorption cartridge of the model installation for the regeneration of the atmosphere of autonomous objects (space vehicles, ships, and stations, submarines, capsules, etc.) is proposed. An algorithm for the numerical solution of the problem is developed using the longitudinal variant of the method of straight lines, the method of continuation of the solution with respect to the best parameter, and implicit multi-step rear differentiation formulas with adaptive control of the order of the formulas and the magnitude of the integration step. Parametric calculations of the adsorption of carbon dioxide by sorbent on the basis of iron hydroxide in a wide range of determining parameters were performed: the inlet gas concentration, the gas filtration rate, and the kinetic adsorption coefficient.

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