Iron ore reduction in multiple fluidized beds

Iron ore is reduced in a multiple fluid bed reactor, the beds being vertically superposed in a tower and the ore passing by gravity downwardly from bed to bed. The lowermost and all superposed beds are fluidized by off gases from which carbon dioxide and water have been stripped; while a further por...

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Bibliographische Detailangaben
Hauptverfasser:	MALGARINI, GIANSILVIO, PASERO, EDOARDO, IACOTTI, ITALO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Iron ore is reduced in a multiple fluid bed reactor, the beds being vertically superposed in a tower and the ore passing by gravity downwardly from bed to bed. The lowermost and all superposed beds are fluidized by off gases from which carbon dioxide and water have been stripped; while a further portion of the fluidizing and reducing gas is provided by combusting methane with a substoichiometric quantity of oxygen and introducing the combustion products into an intermediate level of the column.