US Patent Issued to Energy Tech Innovations on Jan. 20 for "Method and apparatus for treating biogas" (Wisconsin Inventor)

ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,726, issued on Jan. 20, was assigned to Energy Tech Innovations LLC (Mukwonago, Wis.).

"Method and apparatus for treating biogas" was invented by Bryan R Johnson (Mukwonago, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for separating carbon dioxide from a biogas stream includes a first pipe and a second pipe extending within the first pipe. A first inlet at a first end of the second pipe receives the biogas stream, and a second inlet at a first end of the first pipe receives a liquid absorbent. The biogas stream is dispensed from the second pipe into the first pipe to mix with the liquid absorbent, separating the carbon dioxide from ...