Simulation of solubility for separating carbon dioxide from gas mixture using ZIF-8/glycol slurry
【Abstract】The absorption–adsorption hybrid method has potential superiority on CO2 separation and capture. In this work, the Patel-Teja equation of state coupled with the Kurihara mixing rule was used to describe the absorption equilibrium. The binary interaction parameters between pure gas components and glycol were determined by correlating the experimental gas solubility data. Then, the Langmuir equation was applied to calculate the adsorption of gas in ZIF-8, and the correlation of osmotic pressure of glycol liquid membrane on the surface of ZIF-8 with the equilibrium fugacity of gas component was achieved. Finally, the obtained model was applied to predict the separation of CO2 from gas mixture using ZIF-8/glycol slurry.
【Keywords】 carbon dioxide; absorption–adsorption; hybrid method; thermodynamic model;
(Translated by CAI TX)
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