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In this paper we used MOF-5 and Cu3(BTC)2to separate CO2/CH4 and CH4/N2 mixtures under dynamic conditions. Both materials were synthesized and pelletized, thus allowing for a meaningful characterization in view of process scale-up. The materials were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM). By performing breakthrough experiments, we found that Cu3(BTC)2separated CO2/CH4 slightly better than MOF-5. Because the crystal structure of Cu3(BTC)2includes unsaturated accessible metal sites formed via dehydration, it predominantly interacted with CO2 molecules and more easily captured them. Conversely, MOF-5 with a suitable pore size separated CH4/N2 more efficiently in our breakthrough test.
Both this materials we synthesized and pelletized, thus allowing for a meaningful characterization in view of process scale-up. The materials were performed characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Since performing breakthrough experiments, we found that Cu3 (BTC) 2separated CO2 / CH4 slightly better than MOF- Concomitantly, MOF-5 with a suitable pore size separated CH4 / N2 more efficiently in our breakthrough test.