Method for carburization of HDRI produced in H2 based direct reduction process

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12180554
APP PUB NO 20210246521A1
SERIAL NO

16972916

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Abstract

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The invention relates to a process for producing carburized directly reduced iron sponge from iron oxide material. Firstly, direct reduction is carried out by means of a reduction gas consisting at least predominantly of H2 and the carbon content in the iron sponge is then increased by means of a carburizing gas which is fed in, after which used carburizing gas is at least partly taken off while largely avoiding mixing with the reduction gas. The plant for producing carburized directly reduced iron sponge from iron oxide material comprises a reduction zone for directly reducing introduced iron oxide material to directly reduced product by means of reduction gas consisting predominantly of H2 and a reduction gas feed conduit opening into the reduction zone. It also comprises a carburization zone having a carburizing gas feed conduit opening into the carburization zone and a carburization offgas conduit.

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Patent Owner(s)

Patent OwnerAddress
PRIMETALS TECHNOLOGIES AUSTRIA GMBH4031 LINZ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boehm, Christian Thalheim, AT 18 252
Millner, Robert Loosdorf, AT 54 175

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