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Synthesis of amine-impregnated solid sorbents for mitigating CO2 emissions

autorzy: Nguyen Hoang Dam Thuyen, Nguyen Hoang An, Nguyen Thuy Duong, Do Phuong Linh, Nguyen Minh Hang

A series of high capacity CO2 adsorbents was developed using silica supports impregnated with tetraethylenepentamine and diethanolamine. For confirming the amine loadings and examining the residual porosity of materials, the sorbents were characterized by nitrogen adsorption porosimetry, thermogravimetric analysis. The effects of concentration and composition of amine blends, silica supports, adsorption temperature on CO2 adsorption were investigated. The experimental results showed that the silica material with the largest pores, MSU-F, had the highest CO2 capacity after impregnation with a mixture of 40wt% tetraethylenepentamine and 30wt% diethanolamine. The mechanism study confirmed that CO2 was adsorbed onto the sorbent through the formation of carbamate species.

Środowisko / Chemia / Biotechnologia / Nanotechnologia

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Special award of Haller Pro Inventio Foundation

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