ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,696, issued on Jan. 13, was assigned to SHELL USA INC..
"Exhaust gas emissions abatement system" was invented by Peter Tanev Tanev (Houston), Shaojun Miao (Houston) and Mario Soorholtz (Mannheim, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system for removing methane oxidation catalyst (MOC) poisons from an exhaust gas including a methane abatement unit that may receive the exhaust gas having methane (CH4)and the MOC poisons. The methane abatement unit includes a guard bed that may remove the MOC poisons from the exhaust gas and may generate an intermediate exhaust gas having the CH4 and devoid of the MOC poisons. The guard bed includes...