The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2026
Filed:
May. 18, 2021
Arcelormittal, Luxembourg, LU;
George Tsvik, Valparaiso, IN (US);
Dmitri Boulanov, East Chicago, IN (US);
Jon Reyes Rodriguez, Aviles Asturias, ES;
Odile Carrier, Metz, FR;
Sarah Salame, Maizieres les Metz, FR;
José Barros Lorenzo, Maizieres les Metz, FR;
Marcelo Andrade, East Chicago, IN (US);
Dennis Lu, East Chicago, IN (US);
ArcelorMittal, Luxembourg, LU;
Abstract
A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas including hydrogen obtained by thermal cracking of methane inside a plasma torch, the reducing gas further including top gas coming from the DRI shaft and a DRI manufacturing equipment including a DRI shaft () and a plasma torch (), wherein the plasma torch is connected on one side to a methane supply () and, on the other side, to the DRI shaft (), the DRI shaft being provided with a recycling loop allowing to inject its top gas back in the DRI shaft.