466977 Investigation of the Dynamic Adsorption of CO Using Metal-Organic Frameworks

Wednesday, November 16, 2016: 1:18 PM
Cyril Magnin I (Parc 55 San Francisco)
Arwyn Evans, Ryan Luebke, Klaus Hellgardt and Camille Petit, Department of Chemical Engineering, Imperial College London, London, United Kingdom

Carbon Monoxide (CO) is an important industrial gas. Its uses range from being a reducing agent in the smelting metals to being a vital component of synthesis gas (syngas), used during the synthesis of methanol and synthetic oils. Production of CO is accomplished through various processes typically involving partial combustion of hydrocarbon. These processes result in impurities in the gas stream, including nitrogen (N2), carbon dioxide (CO2) and water (H2O). Due to similar size, molecular weight and boiling points, it is particularly challenging to separate CO and N2. Presently, the most common large scale method for this separation is through cryogenic distillation. This approach is not only costly, but also ineffective in purifying CO with high concentrations of N2.

This study investigates the use of a class of adsorbents, namely metal-organic frameworks (MOFs), for purification and separation of CO from gas streams containing high levels of N2. Particularly, several MOFs were synthesized, characterized and then tested for CO adsorption under dynamic conditions. The effect of Cu+ impregnation on the performance of the materials was investigated as well. The mechanisms of adsorption were studied so as to identify the features controlling the uptake and selectivity and lead to the design of better adsorbents.

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See more of this Session: Adsorbent Materials: MOFs
See more of this Group/Topical: Separations Division