WO2009037587A3 - Method and apparatus for the direct reduction of iron ores utilizing gas from a melter-gasifier - Google Patents
Method and apparatus for the direct reduction of iron ores utilizing gas from a melter-gasifier Download PDFInfo
- Publication number
- WO2009037587A3 WO2009037587A3 PCT/IB2008/003455 IB2008003455W WO2009037587A3 WO 2009037587 A3 WO2009037587 A3 WO 2009037587A3 IB 2008003455 W IB2008003455 W IB 2008003455W WO 2009037587 A3 WO2009037587 A3 WO 2009037587A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- melter
- gasifier
- reduction reactor
- gas
- gas stream
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0073—Selection or treatment of the reducing gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
- C21B13/002—Reduction of iron ores by passing through a heated column of carbon
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
- C21B2100/24—Increasing the gas reduction potential of recycled exhaust gases by shift reactions
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
- C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
- C21B2100/282—Increasing the gas reduction potential of recycled exhaust gases by separation of carbon dioxide
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/40—Gas purification of exhaust gases to be recirculated or used in other metallurgical processes
- C21B2100/44—Removing particles, e.g. by scrubbing, dedusting
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
- C21B2100/60—Process control or energy utilisation in the manufacture of iron or steel
- C21B2100/66—Heat exchange
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A method and apparatus for producing a metallized product (DRI) in a downstream direct reduction reactor utilizing the reducing gas effluent either from an upstream reduction reactor associated with a melter-gasifier or from the melter-gasifier itself (in the absence of such upstream reduction reactor), wherein said reducing gas is reacted with water in a shifter and then CO2 is removed from a combined stream of said shifted gas with recycled gas effluent from said downstream reactor in an adsorption CO2 removal unit. Separation of CO2 produces a lean gas stream and a CO2 laden gas stream. The CO2 lean gas stream is utilized for producing DRI in said downstream reduction reactor and the CO2 laden gas stream is used as fuel in a boiler for producing steam which serves then at least to react with carbon monoxide in said shifter to produce hydrogen and preferably also for power generation with resulting overall increased plant efficiency.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US96416007P | 2007-08-08 | 2007-08-08 | |
US60/964,160 | 2007-08-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009037587A2 WO2009037587A2 (en) | 2009-03-26 |
WO2009037587A3 true WO2009037587A3 (en) | 2009-08-06 |
Family
ID=40404484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2008/003455 WO2009037587A2 (en) | 2007-08-08 | 2008-08-08 | Method and apparatus for the direct reduction of iron ores utilizing gas from a melter-gasifier |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2009037587A2 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2427580B1 (en) | 2009-05-08 | 2018-07-11 | Hyl Technolohies, S.a. De C.v. | Integrated steel plant with production of hot or cold dri |
AT508523B1 (en) | 2009-07-31 | 2011-04-15 | Siemens Vai Metals Tech Gmbh | REFORM GAS-BASED REDUCTION PROCESS AND DEVICE WITH DECARBONIZING THE COMBUSTION GAS FOR THE REFORMER |
KR101142501B1 (en) * | 2009-12-28 | 2012-05-07 | 주식회사 포스코 | Apparatus for manufacturing molten irons |
IT1402250B1 (en) * | 2010-09-29 | 2013-08-28 | Danieli Off Mecc | PROCEDURE AND EQUIPMENT FOR THE PRODUCTION OF DIRECT REDUCTION IRON USING A REDUCING GAS SOURCE INCLUDING HYDROGEN AND CARBON MONOXIDE |
AT510565B1 (en) | 2011-06-21 | 2012-05-15 | Siemens Vai Metals Tech Gmbh | DEVICE FOR REGULATING PROCESS GASES IN A PLANT FOR PRODUCING DIRECTLY REDUCED METAL ORCHES |
US9546409B2 (en) * | 2011-08-20 | 2017-01-17 | Hyl Technologies, S.A. De C.V. | Process for producing direct reduced iron (DRI) utilizing gases derived from coal |
AT511888B1 (en) | 2011-09-13 | 2013-06-15 | Siemens Vai Metals Tech Gmbh | DEVICE FOR ENERGY OPTIMIZATION IN A PLANT FOR MANUFACTURING DIRECTLY REDUCED METAL ORCHES |
EP2626124A1 (en) * | 2012-02-13 | 2013-08-14 | Siemens VAI Metals Technologies GmbH | Method and device for reducing the raw materials containing iron oxide |
US8709131B2 (en) | 2012-02-15 | 2014-04-29 | Midrex Technologies, Inc. | Method and system for the production of direct reduced iron using a synthesis gas with a high carbon monoxide content |
EP2650385A1 (en) | 2012-04-12 | 2013-10-16 | Siemens VAI Metals Technologies GmbH | Method and device for the manufacture of liquid pig iron and/or sponge iron |
EP2738268A1 (en) * | 2012-11-29 | 2014-06-04 | Siemens VAI Metals Technologies GmbH | Method for reduction of metal oxides to metallised material in a direct reduction process |
US10065857B2 (en) | 2013-03-12 | 2018-09-04 | Midrex Technologies, Inc. | Systems and methods for generating carbon dioxide for use as a reforming oxidant in making syngas or reformed gas |
EP3034631A1 (en) * | 2014-12-17 | 2016-06-22 | Primetals Technologies Austria GmbH | Direct reduction method with gas cooling |
US11427877B2 (en) | 2017-09-21 | 2022-08-30 | Nucor Corporation | Direct reduced iron (DRI) heat treatment, products formed therefrom, and use thereof |
LU101960B1 (en) * | 2020-07-28 | 2022-01-28 | Wurth Paul Sa | Method for operating a metallurgic plant for producing iron products |
EP4389920A1 (en) * | 2022-12-20 | 2024-06-26 | Primetals Technologies Austria GmbH | Use of tail gas from lock-out gas of a reduction of material containing iron oxide |
WO2024132799A1 (en) * | 2022-12-20 | 2024-06-27 | Primetals Technologies Austria GmbH | Use of tail gas made of the discharged gas of a reduction process of iron oxide-containing material |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19708034A1 (en) * | 1996-03-05 | 1997-10-30 | Voest Alpine Ind Anlagen | Production of liquid pig iron or liquid steel pre-products |
US5958107A (en) * | 1993-12-15 | 1999-09-28 | Bechtel Croup, Inc. | Shift conversion for the preparation of reducing gas |
US6478841B1 (en) * | 2001-09-12 | 2002-11-12 | Techint Technologies Inc. | Integrated mini-mill for iron and steel making |
-
2008
- 2008-08-08 WO PCT/IB2008/003455 patent/WO2009037587A2/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5958107A (en) * | 1993-12-15 | 1999-09-28 | Bechtel Croup, Inc. | Shift conversion for the preparation of reducing gas |
DE19708034A1 (en) * | 1996-03-05 | 1997-10-30 | Voest Alpine Ind Anlagen | Production of liquid pig iron or liquid steel pre-products |
US6478841B1 (en) * | 2001-09-12 | 2002-11-12 | Techint Technologies Inc. | Integrated mini-mill for iron and steel making |
Also Published As
Publication number | Publication date |
---|---|
WO2009037587A2 (en) | 2009-03-26 |
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