ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,802, issued on June 2, was assigned to Nissan Chemical America Corp. (Houston).
"Use of amine modified nanoparticles for H2S scavenging" was invented by Samuel James Maguire-Boyle (Spring, Texas) and John Edmond Southwell (Glen Ellyn, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A process to remove H2S from a stream is described and claimed. The process comprises the steps of adding an amine-functionalized silica nanoparticle composition, and optionally a iriazine. The stream is selected from the group consisting of Oil streams, Gas streams, CO2 point source purification streams and Geothermal Energy System streams."
The patent was filed on F...