Evaluation of the Metal-Organic Frameworks MIL-47, MIL-53 and Cu3(BTC)2 for the Adsorptive Separation of Molecular Mixtures
نویسنده
چکیده
A new class of microporous adsorbents, the metal-organic frameworks was recently developed. Despite their promising characteristics, not much is known about their adsorption behaviour, certainly for mixtures. In this work, vapour and gas phase adsorption and separation of (i) linear and branched alkanes, cyclohexane and benzene, (ii) C8 alkylaromatic compounds and (iii) CO2 and CH4 is studied on three different metal-organic frameworks, MIL-47, MIL-53 and Cu3(BTC)2. Special attention is devoted to the elucidation of the observed selectivity mechanisms. This work comprises an experimental determination of low coverage adsorption properties using chromatography, isotherms using gravimetry and separation behaviour using breakthrough experiments.
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