METHOD FOR MANUFACTURING DIRECT REDUCED IRON AND DRI MANUFACTURING EQUIPMENT

World Intellectual Property Organization Patent

APP PUB NO WO-2022243725-A1
SERIAL NO

PCTIB2021054256

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Abstract

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A method for manufacturing Direct Reduced Iron wherein iron ore is reduced in a DRI shaft by a reducing gas comprising hydrogen obtained by thermal cracking of methane inside a plasma torch, the reducing gas further comprising top gas coming from the DRI shaft and a DRI manufacturing equipment including a DRI shaft (1) and a plasma torch (40), wherein the plasma torch is connected on one side to a methane supply (41) and, on the other side, to the DRI shaft (1), the DRI shaft being provided with a recycling loop allowing to inject its top gas back in the DRI shaft.

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Patent Owner(s)

Patent OwnerAddress
ARCELORMITTALLU1160 LUXEMBOURG

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Inventor(s)

Inventor Name Address
TSVIK GEORGE VALPARAISO INDIANA 46385
BOULANOV DMITRI EAST CHICAGO IN
REYES RODRIGUEZ JON AVILES ASTURIAS
CARRIER ODILE 57000 METZ
SALAME SARAH MAIZIERES LES METZ
BARROS LORENZO JOSÉ MAIZIERES LES METZ
ANDRADE MARCELO EAST CHICAGO IN
LU DENNIS EAST CHICAGO IN

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