DE102009038052B4 - Smelting process by using a pre-reduced Ilmeniterzstromes and / or Hematitezstromes - Google Patents
Smelting process by using a pre-reduced Ilmeniterzstromes and / or Hematitezstromes Download PDFInfo
- Publication number
- DE102009038052B4 DE102009038052B4 DE102009038052A DE102009038052A DE102009038052B4 DE 102009038052 B4 DE102009038052 B4 DE 102009038052B4 DE 102009038052 A DE102009038052 A DE 102009038052A DE 102009038052 A DE102009038052 A DE 102009038052A DE 102009038052 B4 DE102009038052 B4 DE 102009038052B4
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- Prior art keywords
- reduction
- ore
- fuel
- gas
- addition
- Prior art date
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- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000003723 Smelting Methods 0.000 title claims abstract description 14
- 239000000446 fuel Substances 0.000 claims abstract description 26
- 230000003647 oxidation Effects 0.000 claims abstract description 10
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 229910052595 hematite Inorganic materials 0.000 claims abstract description 7
- 239000011019 hematite Substances 0.000 claims abstract description 7
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims abstract description 7
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000005494 condensation Effects 0.000 claims abstract 2
- 238000009833 condensation Methods 0.000 claims abstract 2
- 125000004122 cyclic group Chemical group 0.000 claims abstract 2
- 238000004064 recycling Methods 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 description 20
- 238000000926 separation method Methods 0.000 description 16
- 239000002184 metal Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002245 particle Substances 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000007787 solid Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910044991 metal oxide Inorganic materials 0.000 description 7
- 150000004706 metal oxides Chemical class 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000011084 recovery Methods 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/527—Charging of the electric furnace
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/18—Reducing step-by-step
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
- F27D17/15—Arrangements for using waste heat using boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/30—Arrangements for extraction or collection of waste gases; Hoods therefor
- F27D17/304—Arrangements for extraction or collection of waste gases; Hoods therefor specially adapted for electric arc furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2100/00—Exhaust gas
- C21C2100/02—Treatment of the exhaust gas
-
- 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
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Verhüttungsverfahren durch Einsatz eines vorreduzierten Ilmeniterzstromes und/oder Hämatiterzstromes umfassend die Schritte:
a. Zyklische Oxidation und Reduktion von Ilmeniterz und/oder Hämatiterz, wobei die Oxidation in einer Wirbelschicht unter Zugabe von Luft und die Reduktion unter Zugabe eines Brennstoffs in einem Wanderbett stattfinden,
b. Zugabe weiteren Ilmeniterzes und/oder Hämatiterzes an geeigneter Stelle in Schritt a.
c. Ausschleusen eines Teilerzstromes nach der Reduktion
d. Metallurgische Weiterverarbeitung des Teilerzstromes von c.
e. Das Abgas aus der Reduktion in Schritt a. besteht aus den gasförmigen Produkten der Brennstoffumwandlung, vorwiegend CO2 und H2O
f. Aus dem Abgas aus Schritt e. wird nach einer energetischen Nutzung durch Auskondensieren das H2O entfernt, sodass das entstehende Restgas weitgehend aus CO2 besteht
g. Rückführung eines Gichtgases aus Schritt d in die Reduktion von Schritt a.A smelting process using a pre-reduced ilmenite stream and / or hematite ore stream comprising the steps of:
a. Cyclic oxidation and reduction of ilmenite ore and / or hematite ore, wherein the oxidation takes place in a fluidized bed with the addition of air and the reduction with the addition of a fuel in a moving bed,
b. Addition of further ilmenite ore and / or hematite ore at a suitable site in step a.
c. Removal of a Teilerzstromes after the reduction
d. Metallurgical processing of the divider current of c.
e. The exhaust gas from the reduction in step a. consists of the gaseous products of fuel conversion, predominantly CO 2 and H 2 O.
f. From the exhaust gas from step e. is removed after an energetic use by condensation, the H 2 O, so that the resulting residual gas largely consists of CO 2
G. Recycling a top gas from step d into the reduction of step a.
Description
Die energetische und ökologische Verbesserung von Prozessen in der Eisenschaffenden Industrie hat in den letzten Jahren zu einer Reduzierung von Energieverbrauch und freigesetzten Emissionen geführt. Eine Zielrichtung hierbei ist es, Metalloxiderze vor dem eigentlichen Verhüttungsprozess vorzureduzieren. In diesem Zusammenhang sind eine Vielzahl von Schutzrechten angemeldet bzw. erteilt worden. So wird in
In dieser Erfindung soll ein Verfahren, wie aus
Diese Erfindung orientiert sich bei der apparativen Ausgestaltung an
Weiterhin ist aus
Das Verfahren,
Im Brennstoffreaktor geht mindestens ein Teil des im Metallerz vorhandenen Sauerstoffs eine Verbindung mit dem Brennstoff ein, je nach Brennstoff entsteht Kohlendioxid und/oder Wasser. Dieser Reaktor wird beim Einsatz fester Brennstoffe so mit Metallerzpartikeln beschickt, dass diese vorwiegend schwerkraftbedingt von oben nach unten durch diesen wandern, wobei eine Teilfluidisierung durch zugeführte und entstehende Gase nicht ausgeschlossen wird. Die Brennstoffzufuhr ist so auszuführen, dass eine geeignete Vermischung von Brennstoff und Metallerzpartikeln erfolgt und dass ein möglichst vollständiger Brennstoffumsatz innerhalb des Reaktors erreicht wird. Zur Verbesserung der erzielten Umsätze in diesem Reaktor wird auch optional eine mitunter gestufte Zugabe von Wasserdampf (
Beispielhaft wird der oben beschriebene Prozess für den Einsatz von Ilmenit (FeTiO3) dargestellt,
Die Erfindung ist vorangehend anhand von einem möglichen Ausführungsbeispiel beschrieben worden. Ohne den Gegenstand der Erfindung zu verlassen, offenbaren sich einem Fachmann zahlreiche weitere Ausgestaltungen, ohne den Gegenstand der Erfindung zu verlassen.The invention has been described above with reference to a possible embodiment. Without departing from the subject matter of the invention, numerous further embodiments will be apparent to a person skilled in the art without departing from the subject matter of the invention.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Brennstoff-/ReduktionsreaktorFuel / reduction reactor
- 22
- Brennstoffstromfuel flow
- 33
- Luft-/OxidationsreaktorAir / oxidation reactor
- 44
- Luftstromairflow
- 55
- Oxidierter Erz-/Sauerstoffverarmter Luft-/AschestromOxidized ore / oxygen depleted air / ash stream
- 66
- Reduzierter ErzstromReduced ore flow
- 77
- RoherzstromRoherzstrom
- 88th
- RoherzstromRoherzstrom
- 99
- Sauerstoffverarmter LuftstromOxygen depleted airflow
- 1010
- Oxidierter ErzstromOxidized ore stream
- 1111
- Erz-/AschestromOre / ash stream
- 1212
- WärmeübertragerHeat exchanger
- 1313
- Vorrichtung zur gasseitigen Trennung der ReaktorenDevice for gas-side separation of the reactors
- 1414
- WasserdampfstromSteam power
- 15 15
- Reduzierter ErzstromReduced ore flow
- 1616
- Reduzierter Erzstrom zur VerhüttungReduced ore flow for smelting
- 1717
- Abscheide-/TrennvorrichtungSeparation / separation device
- 1818
- Reduzierter ErzstromReduced ore flow
- 1919
- Stickstofffreier GasstromNitrogen-free gas flow
- 2020
- Reduzierter Erzstrom zur VerhüttungReduced ore flow for smelting
- 2121
- Abscheide-/TrennvorrichtungSeparation / separation device
- 2222
- Abscheide-/TrennvorrichtungSeparation / separation device
- 2323
- Abscheide-/TrennvorrichtungSeparation / separation device
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009038052A DE102009038052B4 (en) | 2009-08-19 | 2009-08-19 | Smelting process by using a pre-reduced Ilmeniterzstromes and / or Hematitezstromes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009038052A DE102009038052B4 (en) | 2009-08-19 | 2009-08-19 | Smelting process by using a pre-reduced Ilmeniterzstromes and / or Hematitezstromes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE102009038052A1 DE102009038052A1 (en) | 2011-03-03 |
| DE102009038052A8 DE102009038052A8 (en) | 2011-06-01 |
| DE102009038052B4 true DE102009038052B4 (en) | 2012-09-27 |
Family
ID=43524934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102009038052A Expired - Fee Related DE102009038052B4 (en) | 2009-08-19 | 2009-08-19 | Smelting process by using a pre-reduced Ilmeniterzstromes and / or Hematitezstromes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102009038052B4 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447024A (en) * | 1992-06-03 | 1995-09-05 | Tokyo Electric Power Co., Inc. | Chemical-looping combustion power generation plant system |
| WO2008044942A1 (en) * | 2006-10-11 | 2008-04-17 | Sinvent As | Chemical looping combustion |
| AT505526A1 (en) * | 2007-08-14 | 2009-02-15 | Univ Wien Tech | FLUID BED REACTOR SYSTEM |
| DE102004053676B4 (en) * | 2004-11-03 | 2010-02-25 | Outotec Oyj | Process and plant for the production of titanium slag from ilmenite |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0169483B1 (en) | 1989-06-02 | 1999-01-15 | 얀 로버트 난키벨 | Pre-heating and pre-reduction of metal oxide ore using high temperature off-gases |
| CA2046343C (en) | 1990-12-27 | 1996-03-05 | Teruo Kanetsuna | Fluidized bed type preliminary reducing furnace for oxide raw material |
| FR2683830B1 (en) | 1991-11-19 | 1994-04-08 | Irsid | INSTALLATION FOR REDUCING THE IRON ORE IN A FLUIDIZED BED CIRCULATING. |
| BR9506918A (en) | 1994-12-29 | 1997-09-09 | Pohang Iron & Steel Co Ltd Voe | Fluidized bed reproduction apparatus for iron ore and process for reducing iron ore using the apparatus |
| DE19518343C2 (en) | 1995-05-18 | 1997-08-21 | Tech Resources Pty Ltd | Melting reduction process with increased effectiveness |
| DE19930071C2 (en) | 1999-06-30 | 2001-09-27 | Wolfgang Krumm | Method and device for pyrolysis and gasification of organic substances and mixtures |
| DE10033453B4 (en) | 2000-07-10 | 2006-11-02 | Herhof Verwaltungsgesellschaft Mbh | Process and device for recycling substances and mixtures containing organic components |
| DE10336676C5 (en) | 2003-08-09 | 2011-03-31 | Outokumpu Oyj | Process and plant for the reduction of iron oxide-containing solids |
| KR100636881B1 (en) | 2005-07-14 | 2006-10-20 | 한국과학기술원 | Medium-Circulation Combustion Furnace Using Dual-Path Circulating Fluidized Bed |
-
2009
- 2009-08-19 DE DE102009038052A patent/DE102009038052B4/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5447024A (en) * | 1992-06-03 | 1995-09-05 | Tokyo Electric Power Co., Inc. | Chemical-looping combustion power generation plant system |
| DE102004053676B4 (en) * | 2004-11-03 | 2010-02-25 | Outotec Oyj | Process and plant for the production of titanium slag from ilmenite |
| WO2008044942A1 (en) * | 2006-10-11 | 2008-04-17 | Sinvent As | Chemical looping combustion |
| AT505526A1 (en) * | 2007-08-14 | 2009-02-15 | Univ Wien Tech | FLUID BED REACTOR SYSTEM |
Non-Patent Citations (1)
| Title |
|---|
| Forret, A. et al.: Chemical Looping Combustion Process applied to liquid fuels. Invited Lectures: ECM 2009 Fourth European Combustion Meeting, 14-17 April 2009. URL:http://www.combusting.org.uk/ECM_2009/P810025.pdf [recherchiert am 07.04.2010] * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009038052A8 (en) | 2011-06-01 |
| DE102009038052A1 (en) | 2011-03-03 |
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