ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,439, issued on Oct. 21, was assigned to Industrial Accessories Co. (Overland Park, Kan.).
"Dry sorbent injection with recirculation" was invented by Pramodh Nijhawan (Knoxville, Tenn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Described herein is a dry sorbent injection system and process for removing sulfur oxides from a flue gas. The process generally comprises treating the flue gas with a dry sorbent material to convert the sulfur oxides to sodium sulfate particulates. The sodium sulfate particulates may then be introduced into a mix tank with water to form sodium sulfate solution. The sodium sulfate solution may then be reacted with a calciu...