Operating a blast furnace using dried top gas
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United States of America Patent
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Aug 10, 1993
Grant Date -
N/A
app pub date -
Nov 29, 1991
filing date -
Nov 29, 1991
priority date (Note) -
Expired
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Abstract
Method of producing pig iron in a blast furnace. At least a portion of a top gas from a blast furnace is collected, dried and then heated to an elevated temperature preferably in the range of 900.degree.-1000.degree. C. An oxygen-enriched hydrogenaceous fuel is introduced into the furnace bosh and the heated dried top gas is introduced into the lower half of the furnace stack above the furnace bosh at a point above which the coke in the furnace is not reactive.
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