Regenerable non-aqueous basic immobilized amine slurries for removal of CO2 from a gaseous mixture and a method of use thereof

A composition for the separation of CO2 from a gaseous mixture, the composition comprising:

• a carrier fluid comprising polymerized silicone oil;
• basic immobilized amine sorbent (BIAS) is suspended in the carrier fluid;
• and,
• wherein the viscosity of the composition ranges from about 20 to about 50 cSt.

A composition for the separation of CO2 from a gaseous mixture, the composition comprising:

• a carrier fluid comprising polymerized silicone oil, wherein the carrier fluid has a molecular weight of less than 1500 g/mol and a boiling point greater than 200° C.;
• and,
• basic immobilized amine sorbent (BIAS) is suspended in the carrier fluid, wherein the BIAS is a class 1 where class 1 are prepared by dry or wet impregnation of a support with a polyamine/hydrophilic solvent mixture, class 2 where class 2 are prepared by wet impregnation of a mixture of a reactive aminosilane and anhydrous hydrophobic solvent onto a dry pre-treated silica support, class 1/class 2 hybrid, or a combination thereof;
• wherein the basic immobilized amine sorbent ranges from about 27 to about 35 wt. % of the composition;
• wherein the viscosity of the composition is in a range from about 20 to about 30 cSt;
• wherein the CO2 capture capacity is greater than 1.0 mmol/L;
• and wherein the composition is hydrophobic.