Process for producing a reduction gas for reduction of metal ore

A method for producing a hot CO- and H2-containing reducing gas utilized for the reduction of lumpy metal ore, in particular iron ore, which comprises forming the reducing gas in a gasification zone by the gasification of carbon carriers, in particular coal, taking place in the presence of a supply...

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Bibliographische Detailangaben
Hauptverfasser:	HERBERT MIZELLI, LEOPOLD WERNER KEPPLINGER, GUNTHER BRUNNBAUER, JOHANN WURM, WALTER RAINER KASTNER
Format:	Patent
Sprache:	eng
Schlagworte:	CARBURETTING AIR OR OTHER GASES CHEMISTRY COMPOUNDS THEREOF FUELS INORGANIC CHEMISTRY LUBRICANTS MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON NON-METALLIC ELEMENTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	A method for producing a hot CO- and H2-containing reducing gas utilized for the reduction of lumpy metal ore, in particular iron ore, which comprises forming the reducing gas in a gasification zone by the gasification of carbon carriers, in particular coal, taking place in the presence of a supply of oxygen and subsequently cooling the reducing gas down to a reducing-gas temperature favorable to the reduction process, wherein H2O and/or CO2 is added to a reducing gas which has been subjectged to a cooling operation that does not effect an addition of H2O/CO2 in order to prevent the Boudouard and heterogeneous water-gas reaction and a resultant heating of the reducing gas, wherein the reducing gas is converted to a reducing gas that is thermodynamically more stable at the reducing-gas temperature.