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Title:
溶融還元法を行うための方法および装置
Document Type and Number:
Japanese Patent JP2012506487
Kind Code:
A
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.

Inventors:
Robert Milner
Johannes Leopold Schenck
Kurt Wieder
Application Number:
JP2011532564A
Publication Date:
March 15, 2012
Filing Date:
September 29, 2009
Export Citation:
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Assignee:
Siemens Fauey Metals Technologies GmbH
International Classes:
C21B11/02; C21B5/06; C21B7/00; F27D17/00
Domestic Patent References:
JP2007170245A2007-07-05
JPH04191307A1992-07-09
JPS63140016A1988-06-11
JPH03504875A1991-10-24
JPS63103009A1988-05-07
JPS55153821A1980-12-01
JPS60209226A1985-10-21
JPS6347309A1988-02-29
JPS6347310A1988-02-29
JPS63140015A1988-06-11
JPH01275712A1989-11-06
JP2009221574A2009-10-01
Foreign References:
EP0488429A21992-06-03
EP0269609A11988-06-01
WO2008086877A22008-07-24
Attorney, Agent or Firm:
Yasuhiko Murayama
Takashi Watanabe
Shinya Mitsuhiro