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US 2011/0209576 A1Published application
Method for operating a blast furnace and blast furnace installation
AssigneePaul Wurth S.A.
InventorsJean-Luc Roth, Jean-Paul Simoes
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AssigneePaul Wurth S.A.
InventorsJean-Luc Roth, Jean-Paul Simoes
Estimating the term…
A method for operating a blast furnace and a corresponding blast furnace, the method including recovering top gas from the blast furnace, submitting at least a portion of the top gas to a recycling process, and feeding the recycled top gas back into the blast furnace, where the recycling process includes feeding the recovered top gas to a reformer unit, feeding volatile carbon containing material to the reformer unit, proceeding to flash gasification of the volatile carbon containing material in the reformer unit, at a temperature between 1100 and 1300° C., and thereby producing devolatised carbonaceous material and synthesis, and allowing the devolatised carbonaceous material and synthesis gas to react with the recovered top gas.
A method for operating a blast furnace comprising the steps of:
The method according to 1, wherein said volatile carbon containing material is fed into said reformer unit in a solid state, wherein upon entry into the reformer unit said volatile carbon containing material is transformed into devolatised carbonaceous material and synthesis gas.
Dependencies are inferred from the claim text.