(395am) ‘Currant-Bun' AmberliteTM-Silica Composites For CO2 Capture
AIChE Annual Meeting
2013
2013 AIChE Annual Meeting
Separations Division
Poster Session: Fundamentals and Applications of Adsorption and Ion Exchange
Tuesday, November 5, 2013 - 6:00pm to 8:00pm
Polymer-silica composites have the potential to provide adsorbent materials with large particle sizes and high surface area with accessible pores for enhanced CO2 transport and capture. AmberlitesTM are commercially available polymeric adsorbents used for various separation processes. These materials possess fairly large pores which can be tailored with the right groups for CO2 capture.
Prepared AmberliteTM-silica composites resulted in materials with high silica content. Spherical materials with particle sizes greater than 200 μm were obtained. Amine functionalization of the composites results in good functional group incorporation and materials with fairly large pores for easy access to the functional groups. TGA analysis of CO2 capture show improved capacity on amine functionalized materials. Sorption kinetics analyses were made and the stability of the materials investigated by taking them through several adsorption-desorption cycles. Comparison of the capture capacity and sorption kinetics of CO2 on non-functionalized and functionalized AmberliteTM-silica composites will be made. Gas transport properties through packed columns of the composites will be related to the capture capacity and sorption kinetics.