Capability of CO2 on Metal-Organic Frameworks-Based Porous Adsorbents and Their Challenges to Pressure Swing Adsorption Applications 


Vol. 19,  No. 4, pp. 370-378, Dec.  2013


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  Abstract

This review has shown the capability of MOFs and ZIFs materials to adsorb CO2 under typical PSA temperatures and pressures. The usual operating conditions are adsorption temperatures of 15~40 ℃ and adsorption pressures of 4~6 bar based on numerous PSA processes which are widely employed in gases industry for adsorptive separation of CO2. The extent of CO2 adsorption on the microporous materials depends on the metal species and organic linkers existing in the frameworks. The pore size and the surface area, and the process variables are the key parameters to be associated with the efficiency of the adsorbents, particularly adsorption pressures if other variables are comparable each other. The MOFs and ZIFs materials require high pressures greater than 15 bar to yield significant CO2 uptakes. They possess a CO2 adsorption capacity which is very similar to or less than that of conventional benchmark adsorbents such as zeolites and activated carbons. Consequently, those materials have been much less cost-effective for adsorptive CO2 separation to date because of very high production price and the absence of commercially-proven PSA processes using such new adsorbents.

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  Cite this article

[IEEE Style]

K. MH, C. SO, C. ST, "Capability of CO2 on Metal-Organic Frameworks-Based Porous Adsorbents and Their Challenges to Pressure Swing Adsorption Applications," Clean Technology, vol. 19, no. 4, pp. 370-378, 2013. DOI: .

[ACM Style]

Kim MH, Choi SO, and Choo ST. 2013. Capability of CO2 on Metal-Organic Frameworks-Based Porous Adsorbents and Their Challenges to Pressure Swing Adsorption Applications. Clean Technology, 19, 4, (2013), 370-378. DOI: .