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Adsorption equilibria of single components for pure methane, ethane, ethylene, hydrogen, and nitrogen onto activated carbon adsorbent (Calgon Co.) were measured. The results were obtained with a static volumetric method at 293.15 K, 303.15 K, and 313.15 K and at pressures up to 2 MPa. Experimental data were correlated by the Langmuir−Freundlich equation. Isosteric enthalpies of adsorption were calculated and shown according to surface loading.
Choi et al. (Tue,) studied this question.
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