US Patent Issued to Saudi Arabian Oil on Feb. 3 for "Two stage fixed-bed catalytic process for upgrading pyrolysis oil to BTX" (Saudi Arabia Inventors)

ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,285, issued on Feb. 3, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).

"Two stage fixed-bed catalytic process for upgrading pyrolysis oil to BTX" was invented by Miao Sun (Dhahran, Saudi Arabia) and Lianhui Ding (Dhahran, Saudi Arabia).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems for upgrading pyrolysis oil include a first fixed-bed reactor having a first catalyst bed and a second catalyst bed. The first catalyst bed includes: a first treating catalyst containing alumina, binder, Mo, Ni, and P; a second treating catalyst made of Al2O3, SiO2, ZrO2, NiO, and WO3; or both. The second catalyst bed includes mixed metal oxide cataly...