Magnesium oxide-polyamine adsorbent and a method of capturing carbon dioxide

Abstract

An aminated magnesium oxide adsorbent containing a magnesium oxide matrix having disordered mesopores and a BET surface area of 320 to 380 m2/g, and a polyamine selected from the group consisting of an ethyleneamine having a molecular weight of up to 450 g/mol and a polyethylene imine having a number average molecular weight of greater than 500 g/mol and up to 20,000 g/mol, wherein the polyamine is impregnated within the disordered mesopores of the magnesium oxide matrix. A method of making the aminated magnesium oxide adsorbent and a method of capturing CO2 from a gas mixture with the aminated magnesium oxide adsorbent are also described.

Dependencies are inferred from the claim text.