MUMBAI, India, July 7 -- Intellectual Property India has published a patent application (202617069565 A) filed by Midrex Technologies, Inc. on June 03, 2026, for Method And System To Produce A Direct Reduced Iron Product With Multiple Carbon Levels From A Single Shaft Furnace.
Inventors include Brooks, Stephen; Montague, Stephen, C.; and Hatakeyama, Taiji.
The application for the patent was published on July 03, 2026, under issue no. 27/2026.
Abstract: A method and system for producing a direct reduced iron product, including: generating hot direct reduced iron in a shaft furnace; receiving the hot direct reduced iron in a feed-leg downstream of the shaft furnace; and adding carbon to the hot direct reduced iron in the feed-leg downstream of the shaft furnace to form the direct reduced iron product. The process may further include receiving and briquetting the hot direct reduced iron with the carbon added to form the direct reduced iron product. The process may further include receiving the hot direct reduced iron in an additional (optionally parallel) feed-leg downstream of the shaft furnace and adding other carbon (in a different amount) to the hot direct reduced iron in the additional feed-leg downstream of the shaft furnace to form an additional direct reduced iron product having a different carbon content, using the same stream of hot direct reduced iron.
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