Method and device for operating a smelting reduction process
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United States of America Patent
Stats
-
Feb 21, 2017
Grant Date -
Dec 11, 2014
app pub date -
Aug 21, 2014
filing date -
Oct 23, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a method and a device for operating a smelting reduction process, at least part of an export gas from a blast furnace or a reduction unit is thermally utilized in a gas turbine and the exhaust gas of this gas turbine is used in a waste heat steam generator to generate steam. The remaining part of the export gas is fed to a CO2 separation apparatus, the tail gas thereby obtained being fed to a waste heat steam generator and burned for additional steam generation. The combustible components of the tail gas are sent for thermal utilization in a steam generator, so that the overall energy balance of the thermal use of the export gas is improved. In addition, a further part of the export gas is qualitatively improved by the CO2 separation apparatus, so as to generate a high-quality reduction gas which can be supplied for metallurgical use.
First Claim
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International Classification(s)
- 2014 Application Filing Year
- F27B Class
- 188 Applications Filed
- 154 Patents Issued To-Date
- 81.92 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F27B Class
- 0 % this patent is cited more than
- 8 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 21, 2028 |
