Abstract
Adsorption isotherms of pure CH4, C2H4, C3H6, C3H6, and CO2 in the range of.80 760 mmHg and adsorption equilibria at atmospheric pressure of various binary gas mixtures, such as CH4-C2H4, CH4-C3H6, CH4-C3H8, C2H4-C3H6, C2H4-C3H8, CO2-C2H4, CO2-C3H6, and CO2-C3H8were measured at O, 25, and 50 C.All of adsorption isotherms of pure gases were well explained by, the potential theory. It was also attempted to correlate the data of the mixed adsorption equilibria with the Polanyitype mixed adsorption equations. Adsorption equilibria of various hydrocarbon mixtures were explained by an empirical equation for ideal mixed adsorption based on the potential theory. In the case of hydrocarbon-carbon dioxide mixtures, an empirical equation with a correction term for non-ideality was used to correlate the data.By using empirical equations based on the potential theory, the mixed adsorption equilibria of hydrocarbon gas mixtures and of hydrocarbon-carbon dioxide gas mixtures can be calculated from the adsorption isotherms of pure gases and one observed value for the mixed adsorption equilibrium.
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