FR2223449A1 - Reduction gas for metallurgical processes - made by passing recycle gas with carbon and/or hydrocarbons through a gas plasma to raise temp. - Google Patents

Reduction gas for metallurgical processes - made by passing recycle gas with carbon and/or hydrocarbons through a gas plasma to raise temp.

Info

Publication number
FR2223449A1
FR2223449A1 FR7409805A FR7409805A FR2223449A1 FR 2223449 A1 FR2223449 A1 FR 2223449A1 FR 7409805 A FR7409805 A FR 7409805A FR 7409805 A FR7409805 A FR 7409805A FR 2223449 A1 FR2223449 A1 FR 2223449A1
Authority
FR
France
Prior art keywords
gas
plasma
carbon
hydrocarbons
metallurgical processes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7409805A
Other languages
French (fr)
Other versions
FR2223449B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SKF Industrial Trading and Development Co BV
Original Assignee
SKF Industrial Trading and Development Co BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SKF Industrial Trading and Development Co BV filed Critical SKF Industrial Trading and Development Co BV
Publication of FR2223449A1 publication Critical patent/FR2223449A1/en
Application granted granted Critical
Publication of FR2223449B1 publication Critical patent/FR2223449B1/fr
Granted legal-status Critical Current

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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K3/00—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
    • 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
    • C21B13/12—Making spongy iron or liquid steel, by direct processes in electric furnaces
    • C21B13/125—By using plasma
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/001—Injecting additional fuel or reducing agents
    • C21B5/002—Heated electrically (plasma)
    • 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
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • 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
    • 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

Abstract

The recycle gas contg. CO, CO2, H2 and H2O, is passed with carbon and/or hydrocarbons through a plasma of the gas itself in order to impart sufficient energy and a high enough temp. for the endothermic reaction of CO2, H2O and carbon or hydrocarbons to give CO and H2. The gas, after passing wholly or partly through the plasma, may be catalytically treated to further reduce the CO2 and H2O content. The gas after heating in the plasma may be reacted with a solid bed of carbon, or carbon dust may be mixed with it before passing through the plasma. The product gas contg. 5% (pref. 2%) max. of CO2 + H2O, is suitable for metallurgical processes or as protective or carburising gas. Use of a plasma allows direct heating of the gas in a simple and economic manner.
FR7409805A 1973-03-26 1974-03-22 Reduction gas for metallurgical processes - made by passing recycle gas with carbon and/or hydrocarbons through a gas plasma to raise temp. Granted FR2223449A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7304332A SE371453C (en) 1973-03-26 1973-03-26 KIT FOR PRODUCTION OF REDUCTION GAS

Publications (2)

Publication Number Publication Date
FR2223449A1 true FR2223449A1 (en) 1974-10-25
FR2223449B1 FR2223449B1 (en) 1977-09-30

Family

ID=20317041

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7409805A Granted FR2223449A1 (en) 1973-03-26 1974-03-22 Reduction gas for metallurgical processes - made by passing recycle gas with carbon and/or hydrocarbons through a gas plasma to raise temp.

Country Status (8)

Country Link
JP (1) JPS564482B2 (en)
AU (1) AU475113B2 (en)
BE (1) BE885257Q (en)
CA (1) CA1007050A (en)
DE (1) DE2413558B2 (en)
FR (1) FR2223449A1 (en)
IT (1) IT1011622B (en)
SE (1) SE371453C (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021601A1 (en) * 1979-05-25 1981-01-07 Westinghouse Electric Corporation Process for regenerating a reducing gas mixture from spent gas evolved in the production of sponge iron
FR2486962A1 (en) * 1980-07-15 1982-01-22 Siderurgie Fse Inst Rech Lowering reducing agent consumption in smelting furnaces - esp. blast furnaces, by using recycled off-gas instead of conventional blast
FR2500480A1 (en) * 1981-02-26 1982-08-27 Skf Steel Eng Ab Continuous sponge iron prodn. in shaft furnace - using scrubbed recycle gas, part of which is passed through a gas generator
FR2500479A1 (en) * 1981-02-26 1982-08-27 Skf Steel Eng Ab Continuous sponge iron prodn. in shaft furnace - using scrubbed recycle gas, part of which is passed through gas generator filled with solid reductant
WO1982003091A1 (en) * 1981-03-11 1982-09-16 Poos Arthur Gerard Blast furnace injection of overheated reducing gases
FR2543666A1 (en) * 1983-03-28 1984-10-05 Skf Steel Eng Ab METHOD FOR HEATING TREATMENT AIR IN INDUSTRIAL GOALS
FR2556006A1 (en) * 1983-12-02 1985-06-07 Skf Steel Eng Ab PROCESS AND INSTALLATION FOR REDUCING OXIDIZED MATERIAL WITH SIMULTANEOUS GENERATION OF APPROPRIATE GAS FOR THE RECOVERY OF THERMAL ENERGY
EP0157917A2 (en) * 1983-11-29 1985-10-16 Hüls Aktiengesellschaft Reduction of metal compounds
FR2848123A1 (en) * 2002-12-04 2004-06-11 Air Liquide Recuperation of blast furnace gas with carbon dioxide and nitrogen purification to produce an enriched gas for recycling to the blast furnace or for export to other gas users
WO2017064210A1 (en) * 2015-10-13 2017-04-20 Deutsche Lufthansa Ag Device and method for producing syngas

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE814899A (en) * 1974-05-10 1974-11-12 PROCESS FOR MANUFACTURING HOT REDUCING GAS.
US4421553A (en) * 1980-05-06 1983-12-20 Centre De Recherches Metallurgiques Process for operating a blast furnace
AT384007B (en) * 1984-04-02 1987-09-25 Voest Alpine Ag METHOD FOR PRODUCING SYNTHESIS GAS AND DEVICE FOR IMPLEMENTING THE METHOD
DE3611429A1 (en) * 1985-02-15 1986-11-06 SKF Steel Engineering AB, Hofors WASTE DECOMPOSITION METHOD
SE453920B (en) * 1985-03-01 1988-03-14 Skf Steel Eng Ab SET AND DEVICE FOR GASING OF FOSSIL FUEL AND REFORM OF GAS FUEL
SE8501005L (en) * 1985-03-01 1986-09-02 Skf Steel Eng Ab THERMAL REFORM OF THE GAS SHOULDER
SE457355B (en) * 1985-09-25 1988-12-19 Skf Steel Eng Ab MAKE SURE TO PREPARE A CLEAN, CARBON OXIDE AND GAS GAS INCLUDING GAS
US5725616A (en) * 1991-12-12 1998-03-10 Kvaerner Engineering A.S. Method for combustion of hydrocarbons
NO175984C (en) * 1991-12-12 1995-01-18 Kvaerner Eng Process for reducing the carbon content of a feed stream of natural gas or other hydrocarbon gases and use thereof
US5835068A (en) * 1996-09-03 1998-11-10 Raytheon Company Microwave transceiver/antenna system with adjustable mounting and alignment mechanism
AT404600B (en) * 1997-03-12 1998-12-28 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR TREATING REDUCING GAS FOR REDUCING ORES
CA2286589C (en) 1997-04-17 2009-02-17 Marc Jean Campagna Fuel and process for fuel production
DE19739181A1 (en) * 1997-09-08 1999-03-11 Abb Research Ltd Discharge reactor and use of the same
DE19757936B4 (en) * 1997-12-27 2005-08-25 Abb Research Ltd. Process for producing a H2-CO gas mixture
DE19800418C2 (en) 1998-01-08 2001-01-25 Bodo Wolf Process for the production of pig iron
FR2892127B1 (en) * 2005-10-14 2012-10-19 Commissariat Energie Atomique DEVICE FOR GASIFYING BIOMASS AND ORGANIC WASTE AT HIGH TEMPERATURE AND WITH EXTERNAL ENERGY DELIVERY FOR THE GENERATION OF A HIGH-QUALITY SYNTHESIS GAS
SE536291C2 (en) 2012-03-08 2013-08-06 Valeas Recycling Ab Iron reduction process and device therefore
DE102014112629A1 (en) * 2014-09-02 2016-03-03 Oleg Gyzha Process for the production of pig iron in the blast furnace and blast furnace for the production of pig iron by melting and by reduction of aufzuschmelzendem and to be reduced material
CA2966243A1 (en) 2014-10-31 2016-05-06 Deutsche Lufthansa Ag Method and plant for the production of synthesis gas

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD28565A (en) *
DE2114077B2 (en) * 1970-03-31 1976-04-22 Centre de Recherches Metallurgiques -Centrum voor Research in de Metallurgie C.R.M., Brüssel Tuyeres for reducing gas injection in blast - furnaces
BE770094A (en) * 1971-07-15 1972-01-17 Centre Rech Metallurgique Hydrocarbon reformer - using non-oxidising gas plasma flame with adjustable electrodes

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0021601A1 (en) * 1979-05-25 1981-01-07 Westinghouse Electric Corporation Process for regenerating a reducing gas mixture from spent gas evolved in the production of sponge iron
FR2486962A1 (en) * 1980-07-15 1982-01-22 Siderurgie Fse Inst Rech Lowering reducing agent consumption in smelting furnaces - esp. blast furnaces, by using recycled off-gas instead of conventional blast
FR2500480A1 (en) * 1981-02-26 1982-08-27 Skf Steel Eng Ab Continuous sponge iron prodn. in shaft furnace - using scrubbed recycle gas, part of which is passed through a gas generator
FR2500479A1 (en) * 1981-02-26 1982-08-27 Skf Steel Eng Ab Continuous sponge iron prodn. in shaft furnace - using scrubbed recycle gas, part of which is passed through gas generator filled with solid reductant
WO1982003091A1 (en) * 1981-03-11 1982-09-16 Poos Arthur Gerard Blast furnace injection of overheated reducing gases
FR2543666A1 (en) * 1983-03-28 1984-10-05 Skf Steel Eng Ab METHOD FOR HEATING TREATMENT AIR IN INDUSTRIAL GOALS
EP0157917A3 (en) * 1983-11-29 1986-03-19 Hüls Aktiengesellschaft Reduction of metal compounds
EP0157917A2 (en) * 1983-11-29 1985-10-16 Hüls Aktiengesellschaft Reduction of metal compounds
FR2556006A1 (en) * 1983-12-02 1985-06-07 Skf Steel Eng Ab PROCESS AND INSTALLATION FOR REDUCING OXIDIZED MATERIAL WITH SIMULTANEOUS GENERATION OF APPROPRIATE GAS FOR THE RECOVERY OF THERMAL ENERGY
FR2848123A1 (en) * 2002-12-04 2004-06-11 Air Liquide Recuperation of blast furnace gas with carbon dioxide and nitrogen purification to produce an enriched gas for recycling to the blast furnace or for export to other gas users
WO2004052510A2 (en) * 2002-12-04 2004-06-24 L'air Liquide,Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Method for recovering blast-furnace gas and use thereof for making cast iron
WO2004052510A3 (en) * 2002-12-04 2004-08-12 Air Liquide Method for recovering blast-furnace gas and use thereof for making cast iron
WO2017064210A1 (en) * 2015-10-13 2017-04-20 Deutsche Lufthansa Ag Device and method for producing syngas

Also Published As

Publication number Publication date
DE2413558B2 (en) 1980-02-28
JPS5026794A (en) 1975-03-19
AU6693074A (en) 1975-09-25
SE371453C (en) 1978-01-12
CA1007050A (en) 1977-03-22
DE2413558A1 (en) 1974-10-17
IT1011622B (en) 1977-02-10
AU475113B2 (en) 1976-08-12
DE2413558C3 (en) 1987-10-22
JPS564482B2 (en) 1981-01-30
FR2223449B1 (en) 1977-09-30
BE885257Q (en) 1981-01-16
SE371453B (en) 1974-11-18

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