Method for the simultaneous production of iron and a crude syngas containing CO and H2
AssigneeThyssenkrupp Uhde GmbH
InventorJohannes Menzel
Life of this patent
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Abstract
The invention relates to a method for simultaneously producing iron and a crude syngas containing CO and H2 by means of a blast furnace that is charged with iron ore and carbon-containing reducing agents. The amount of carbon-containing reducing agents fed to the blast furnace is greater than the amount of fuel required for producing the iron. Technically pure oxygen is fed into the blast furnace for the blast furnace process and for producing the crude syngas. In addition, CO2 and/or steam are fed to the blast furnace in order to control the ratio between CO and H2 in the crude syngas discharged from the blast furnace as top gas and/or moderate the temperature at which the oxygen is injected.
Claims6
Method for the simultaneous production of iron and a crude synthesis gas that contains CO and H2, using a blast furnace that is charged with iron ores and coke,
- wherein an amount of coke supplied to the blast furnace is greater than an amount of fuel required for iron production in order to maximize the production of the crude synthesis gas amount,
- wherein technically pure oxygen is supplied to the blast furnace, for a blast furnace process and for production of the crude synthesis gas, an amount of the oxygen being adapted to the fuel amount and also being greater than an amount required for pure iron production,
- wherein in addition, CO2 and/or steam is/are supplied to the blast furnace, in order to control a CO/H2 ratio of crude synthesis gas that leaves the blast furnace as furnace gas.
Dependencies are inferred from the claim text.