METHOD FOR OPERATING A BLAST FURNACE INSTALLATION

A method for operating a blast furnace for producing of pig iron, comprising the steps of includingheating a stream of hydrocarbon gas and a stream of steam in a first heater to provide a heated stream of hydrocarbon gas and steam,feeding and partially reforming the heated stream of hydrocarbon gas...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KINZEL, Klaus Peter, MICHELETTI, Lorenzo, CASTAGNOLA, Cristiano, VALERIUS, Miriam
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CHEMISTRY MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON
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Beschreibung
Zusammenfassung:	A method for operating a blast furnace for producing of pig iron, comprising the steps of includingheating a stream of hydrocarbon gas and a stream of steam in a first heater to provide a heated stream of hydrocarbon gas and steam,feeding and partially reforming the heated stream of hydrocarbon gas and steam in a pre-reformer to provide a stream of partially reformed syngas,heating a first stream of blast furnace gas from the blast furnace and the stream of partially reformed syngas in a second heater, before or after their mixing together, to provide a heated carbon feed stream,reforming the heated carbon feed stream in a secondary reformer to provide a second stream of syngas, andfeeding said second stream of syngas to the shaft of the blast furnace.