Patent ID: 8435471
Filing Date: 2013-05-07
Classification: B01D

Abstract:
1. A process for wet flue gas desulfurization comprising the steps of: preparing a slurry of alkaline solids selected from the group consisting of sodium carbonate, potassium carbonate, calcium carbonate and magnesium carbonate; activating the slurry of alkaline solids by mixing enantiopure, L or D, monomers and polymers of lactic acid, with or without monomers and polymers of glycolic acid or other hydroxy acids into the slurry to promote solubilization of the alkaline solids; bringing untreated flue gasses into intimate contact with the slurry mixture, where the monomers and polymers of hydroxy acids catalyze a reaction of flue gas sulfurs and solubilized alkalines to remove sulfur from the flue gas; and releasing the desulfurized flue gas into the atmosphere.