Ag^+-exchanged resins are prepared and studied for ethylene/ethane separation by adsorption.On Ag^+-exchanged S9,at 25℃ and 0.1013MPa,the equilibrium adsorbed amount for C2H4 is 0.992mmol·g^-1,and the adsorption ratio for C2H4/C2H6 is 3.56.The adsorption capacity can be restored almost completely at 25℃ and 75℃,and the desorption residual amount is less than 0.01mmol·g^-1.For the adsorption consisting of physical adsorption and π-complexation with energy heterogeneity,the equilibrium data are correlated with Langmuir-Freundlich isotherm equation.Furthermore,the heat of adsorption and the overall diffusion time constants are calculated from the experimental datal.Considering all the adsorption characteristics,the application potential for industrial adsorption process is discussed.
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