Adsorption on Sol-Gel Derived Ceramic Membranes

CH4 is extremely low. This is consistent with the low isosteric heats of adsorption for H2 and CH4 calculated from the adsorption isotherms. 

It is interesting to note that their high pressure adsorption experiments for CO2 and CH4 showed that Henry s law could be applied to pressures of about 15 and 8 bar, respectively for temperatures above 373 K. An interesting implication of this linearity is that if the gas permeation is indeed linearly proportioned to the amount adsorbed, then the Henry s law constant cam be used to calculate the gas fluxes through microporous membranes at high pressures. 

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