Behavior of different amino-polymer loaded oxides for CO₂ adsorption characteristics

• Online Access: http://hdl.handle.net/2047/D20315041

Mesoporous oxides of silicon, titanium, zirconium, and aluminum have been investigated in the literature for use in various adsorption applications due to their varying acid/base characters and ease of synthesis. It has been suggested that their use as surfaces for amine loaded carbon dioxide capture may be beneficial. These supports for class 1 amine absorbents will chemisorb carbon dioxide from flue gases and may show different properties and capacities depending on the acid/base character of the solid surface onto which the amine groups are loaded. This work investigates the effect of acid-base properties of support materials on amine aided carbon capture. In this study, the geometry and pore connectivity of the different oxides are kept congruent to eliminate the effect of pore size and dimensionality on capture capacities of the system which has been extensively studied in existing literature. It is possible to create such one-dimensionally mesoporous SBA-15, alumina, titania and zirconia using tri-block copolymers like Pluronic P-123 as a template. Carbon dioxide capture trials on amine loaded materials and calorimetric analysis of loaded oxides determine changes due to the acid-base properties of the oxides on the amine loading capacity and efficiency of these materials.