US Patent Issued to Nissan Chemical America on Oct. 20 for "Use of transition metal doped nanoparticles and silica nanoparticles for H 2 S removal" (Illinois, Texas Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,767,899, issued on Oct. 20, was assigned to Nissan Chemical America Corp. (Houston).

"Use of transition metal doped nanoparticles and silica nanoparticles for H 2 S removal" was invented by Clive Coady (Geneva, Ill.), 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 comprising the steps of adding a dispersion of colloidal nanoparticles having surface functionality comprising Copper, Zinc, Iron, or Manganese, and a triazine. The stream is selected from the group consisting of Oil streams, Gas streams, CO2 point source purification st...