ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,503,737, issued on Dec. 23, was assigned to Saudi Arabian Oil Co. (Dhahran, Saudi Arabia).
"Sustainable steel production with co-generation of hydrogen" was invented by Faisal B. Almutairi (Dammam, Saudi Arabia) and Ali Abdulaziz Al-Ugla (Dhahran, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "Solar energy is concentrated and transferred to a heat transfer fluid, thereby heating the heat transfer fluid. The heat transfer fluid includes solid particles. Heat from the heat transfer fluid is used to melt a metal. While transferring heat to the furnace, at least a portion of the melted metal is oxidized to form steel. Heat is transferred from a...