Shaft furnace for direct reduction of oxides
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United States of America Patent
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Dec 30, 1997
Grant Date -
N/A
app pub date -
Feb 22, 1996
filing date -
Feb 22, 1996
priority date (Note) -
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status (Latency Note)
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Abstract
A shaft furnace for reduction of oxides includes a shaft member having an oxide inlet and defining a pre-heating and pre-reducing zone downstream of the oxide inlet, a reducing zone downstream of the pre-heating and pre-reducing zone a transition zone downstream of the reducing zone, and a discharge zone downstream of the transition zone; and a gas reforming zone associated with the shaft member for reforming a methane-containing gas into a reformed gas and for introducing the reformed gas into the reducing zone whereby oxides in the reducing zone are reduced by the reformed gas.
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