Experimental Measurement for Adsorption of Ethylene and Ethane Gases on Copper-Exchanged Zeolites 13X and 5A
Haleh Golipour, Babak Mokhtarani, Morteza Mafi, Alireza Moradi, Hamid Reza Godini
Abstract
New experimental data for adsorption of ethylene and ethane on zeolite 13X and zeolite 5A are reported at a temperature range of 288–308 K and pressure up to 20 bar. The cation exchange for zeolites 13X and 5A was performed using copper, and the observed adsorption capacities of the copper-exchanged zeolites were measured. The equilibrium adsorption capacities of these adsorbents toward ethylene and ethane were compared. The copper-exchanged zeolites showed improved adsorption capacities toward both gases, where CuA was found to have the highest adsorption capacity. However, the copper-exchanged zeolites 13X and 5A underperformed in comparison to the expected high selectivity for ethylene/ethane separation. The data utilized for expressing the adsorption isotherm were successfully correlated with the Toth model, and the parameters for this model were calculated as reported in this paper.