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US 12,209,293 B2Granted
Process and apparatus for direct reduction with electrically heated-up reduction gas
AssigneePrimetals Technologies Austria GmbH
InventorsFranz Hauzenberger, Robert Millner, Hanspeter Ofner, Norbert Rein, Gerald Rosenfellner, Johann Wurm
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Abstract
A method of direct reduction of metal oxides that includes catalytic reforming of hydrocarbonaceous gas in a reformer to obtain reformer gas, obtaining at least one precursor gas based on the reformer gas, preparing a reduction gas by heating the at least one precursor gas by means of electrical energy, at least a portion of the electrical energy being introduced by means of plasma.
Claims10
A method of direct reduction of metal oxides with a reduction gas, comprising:
- catalytic reforming of hydrocarbonaceous gas in a reformer to obtain reformer gas, the reformer gas exiting the reformer at a first temperature,
- producing at least one precursor gas based on the reformer gas, and
- preparing the reduction gas by heating the at least one precursor gas to a second temperature above the first temperature by means of electrical energy
- wherein at least a portion of the electrical energy is introduced by means of plasma.
1 more element
Dependencies are inferred from the claim text.