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US 10,589,214 B2Granted
CO2 mass transfer enhancement of aqueous amine solvents by particle additives
AssigneeUniversity of Kentucky Research Foundation
InventorsLeland R. Widger, Guojie Qi, Kun Liu, Jonathan Bryant, Cameron A. Lippert, Kunlei Liu
Life of this patent
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Abstract
The present invention relates to methods for improving carbon capture by providing particles within an amine solvent. The particles provide for increased turbulence at the interface between the counter-flowing gas and solvent, which allows for increased amine and carbamate salt diffusion between the liquid film and bulk.
Claims10
A method for increasing carbon capture from a gas comprising:
- functionalizing hydrophobic activated carbon-comprising particles by appending a —COOH functional group thereto, wherein the hydrophobic particles have a width of less than about 500 microns;
- adding the hydrophobic particles with the appended —COOH functional group to a biphasic scrubbing solution;
- contacting the gas with the biphasic scrubbing solution, wherein the biphasic scrubbing solution comprises an amine solvent;
- and
- wherein the hydrophobic particles are further functionalized such that the hydrophobic particles comprise the structure
2 more elements
Dependencies are inferred from the claim text.