ES483373A1 - Procedimiento para reducir oxido de hierro en un horno de reduccion directa - Google Patents

Procedimiento para reducir oxido de hierro en un horno de reduccion directa

Info

Publication number
ES483373A1
ES483373A1 ES483373A ES483373A ES483373A1 ES 483373 A1 ES483373 A1 ES 483373A1 ES 483373 A ES483373 A ES 483373A ES 483373 A ES483373 A ES 483373A ES 483373 A1 ES483373 A1 ES 483373A1
Authority
ES
Spain
Prior art keywords
gas
reductant
hot
stream
furnace
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.)
Expired
Application number
ES483373A
Other languages
English (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.)
Midrex Corp
Original Assignee
Midrex Corp
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 Midrex Corp filed Critical Midrex Corp
Publication of ES483373A1 publication Critical patent/ES483373A1/es
Expired 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
    • 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
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C21B13/029—Introducing coolant gas in the shaft 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
    • C21B2100/28—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
    • C21B2100/42—Sulphur removal
    • 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
    • C21B2100/64—Controlling the physical properties of the gas, e.g. pressure or temperature
    • 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)
  • Industrial Gases (AREA)
  • Treating Waste Gases (AREA)

Abstract

Procedimiento para reducir óxido de hierro en un horno de reducción directa, en donde el gas reductor caliente se introduce en el horno para reducir el óxido de hierro allí presente a un producto de hierro metalizado y para formar un gas reductor agotado conteniendo dióxido de carbono, caracterizado porque comprende las etapas: (a) separar una porción sustancial del dióxido de carbono de dicho gas reductor agotado para formar un gas rico en reductor; (b) gasificar combustible fósil para formar un gas de gasificador caliente; (c) templar dicho gas de gasificador caliente con una primera corriente de dicho gas rico en reductor para formar una mezcla gaseosa caliente; (d) reaccionar dicha mezcla gaseosa con un aceptor de azufre para formar un gas desulfurado caliente; (e) calentar una segunda corriente de dicho gas rico en reductor; y (f) mezclar dicha segunda corriente calentada de gas rico en reductor con gas desulfurado caliente para formar un gas reductor que tiene una calidad de al menos8 aproximadamente y una temperatura de 760 a 900ºC aproximadamente para su introducción en el citado horno.
ES483373A 1978-08-15 1979-08-14 Procedimiento para reducir oxido de hierro en un horno de reduccion directa Expired ES483373A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/933,691 US4173465A (en) 1978-08-15 1978-08-15 Method for the direct reduction of iron using gas from coal

Publications (1)

Publication Number Publication Date
ES483373A1 true ES483373A1 (es) 1980-04-16

Family

ID=25464358

Family Applications (1)

Application Number Title Priority Date Filing Date
ES483373A Expired ES483373A1 (es) 1978-08-15 1979-08-14 Procedimiento para reducir oxido de hierro en un horno de reduccion directa

Country Status (30)

Country Link
US (1) US4173465A (es)
JP (1) JPS5528395A (es)
AR (1) AR218150A1 (es)
AT (1) AT367456B (es)
AU (1) AU523276B2 (es)
BE (1) BE878154A (es)
BR (1) BR7905180A (es)
CA (1) CA1118211A (es)
CS (1) CS218587B2 (es)
DE (1) DE2932939A1 (es)
ES (1) ES483373A1 (es)
FI (1) FI792271A7 (es)
FR (1) FR2433580A1 (es)
GB (1) GB2027741B (es)
GR (1) GR70352B (es)
IN (1) IN152255B (es)
IT (1) IT1122470B (es)
LU (1) LU81597A1 (es)
MA (1) MA18563A1 (es)
MX (1) MX152098A (es)
NL (1) NL7906187A (es)
NZ (1) NZ191204A (es)
PH (1) PH14399A (es)
PL (1) PL120142B1 (es)
PT (1) PT70059A (es)
SE (1) SE436760B (es)
SU (1) SU1052165A3 (es)
TR (1) TR20764A (es)
YU (1) YU40934B (es)
ZA (1) ZA793867B (es)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
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US4260412A (en) * 1980-01-16 1981-04-07 Midrex Corporation Method of producing direct reduced iron with fluid bed coal gasification
US4331470A (en) * 1980-09-15 1982-05-25 Midrex Corporation Method for the direct reduction of iron in a shaft furnace using gas from coal
DE3104405C2 (de) * 1981-02-07 1985-10-31 SKF Steel Engineering AB, Hofors Anlage und Verfahren zur Herstellung von Eisenschwamm
DE3104281C2 (de) * 1981-02-07 1985-10-31 SKF Steel Engineering AB, Hofors Verfahren und Vorrichtung zur Herstellung von Eisenschwamm
JPS6021174U (ja) * 1983-07-20 1985-02-14 富士電気化学株式会社 アルカリ電池
AT382165B (de) * 1983-08-18 1987-01-26 Voest Alpine Ag Verfahren zur herstellung von fluessigem roheisen oder stahlvorprodukten sowie vorrichtung zur durchfuehrung des verfahrens
US4608240A (en) * 1983-11-04 1986-08-26 Hylsa, S.A. Method for the desulfurization of hydrocarbon gas
IT1177077B (it) * 1983-12-02 1987-08-26 Skf Steel Eng Ab Procedimento ed impianto per ridurre materiale ossidico generando simultaneamente un gas idoneo come gas combustibile
IT1177076B (it) * 1983-12-02 1987-08-26 Skf Steel Eng Ab Procedimento ed impianto per ridurre materiale ossidico generando simultaneamente un gas idoneo per il recupero dell'energia termica
IT1177075B (it) * 1983-12-02 1987-08-26 Skf Steel Eng Ab Procedimento ed impianto per ridurre materiale ossidico
AT381954B (de) * 1984-08-16 1986-12-29 Voest Alpine Ag Verfahren zur direktreduktion von eisenoxidhaeltigen materialien
GB2191782A (en) * 1986-06-17 1987-12-23 Midrex Int Bv Method and apparatus for producing upgraded synthetic fuel gas from coal
GB9123369D0 (en) * 1991-11-04 1991-12-18 Boc Group Plc Separation of hydrogen
AT406484B (de) * 1995-08-16 2000-05-25 Voest Alpine Ind Anlagen Verfahren zur herstellung von flüssigem roheisen oder flüssigen stahlvorprodukten und eisenschwamm sowie anlage zur durchführung des verfahrens
US6149859A (en) * 1997-11-03 2000-11-21 Texaco Inc. Gasification plant for direct reduction reactors
JP3939492B2 (ja) 2000-11-08 2007-07-04 株式会社神戸製鋼所 石炭ガス化直接還元製鉄法
AT505490B1 (de) * 2007-06-28 2009-12-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur erzeugung von eisenschwamm
WO2009086407A2 (en) 2007-12-28 2009-07-09 Greatpoint Energy, Inc. Steam generating slurry gasifier for the catalytic gasification of a carbonaceous feedstock
US8366795B2 (en) 2008-02-29 2013-02-05 Greatpoint Energy, Inc. Catalytic gasification particulate compositions
US20090217575A1 (en) 2008-02-29 2009-09-03 Greatpoint Energy, Inc. Biomass Char Compositions for Catalytic Gasification
US8297542B2 (en) 2008-02-29 2012-10-30 Greatpoint Energy, Inc. Coal compositions for catalytic gasification
US8286901B2 (en) 2008-02-29 2012-10-16 Greatpoint Energy, Inc. Coal compositions for catalytic gasification
US8349039B2 (en) 2008-02-29 2013-01-08 Greatpoint Energy, Inc. Carbonaceous fines recycle
US8361428B2 (en) 2008-02-29 2013-01-29 Greatpoint Energy, Inc. Reduced carbon footprint steam generation processes
CN102159687B (zh) 2008-09-19 2016-06-08 格雷特波因特能源公司 使用炭甲烷化催化剂的气化方法
CN103865585A (zh) 2008-09-19 2014-06-18 格雷特波因特能源公司 碳质原料的气化装置
KR101290477B1 (ko) 2008-09-19 2013-07-29 그레이트포인트 에너지, 인크. 탄소질 공급원료의 기체화 방법
CN102272268B (zh) 2008-12-30 2014-07-23 格雷特波因特能源公司 制备催化的煤微粒的方法
CN102272267A (zh) 2008-12-30 2011-12-07 格雷特波因特能源公司 制备催化的碳质微粒的方法
LU91547B1 (en) 2009-04-03 2010-10-04 Wurth Paul Sa Method and installation for producing direct reduced iron
CN102459525B (zh) 2009-05-13 2016-09-21 格雷特波因特能源公司 进行含碳原料的加氢甲烷化的方法
EP2430126A2 (en) 2009-05-13 2012-03-21 Greatpoint Energy, Inc. Processes for hydromethanation of a carbonaceous feedstock
AT508291B1 (de) * 2009-05-28 2011-07-15 Siemens Vai Metals Tech Gmbh Verfahren und vorrichtung zur reduktion oxidischer eisenträger mit reduktionsgas aus einem kohlevergaser
CN102597181B (zh) 2009-08-06 2014-04-23 格雷特波因特能源公司 碳质原料的氢化甲烷化方法
KR101350061B1 (ko) 2009-09-16 2014-01-14 그레이트포인트 에너지, 인크. 탄소질 공급원료의 히드로메탄화 방법
WO2011034891A1 (en) 2009-09-16 2011-03-24 Greatpoint Energy, Inc. Two-mode process for hydrogen production
CN102575181B (zh) 2009-09-16 2016-02-10 格雷特波因特能源公司 集成氢化甲烷化联合循环方法
WO2011034889A1 (en) 2009-09-16 2011-03-24 Greatpoint Energy, Inc. Integrated hydromethanation combined cycle process
AU2010310849B2 (en) 2009-10-19 2013-05-02 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
AU2010310846B2 (en) 2009-10-19 2013-05-30 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
AU2010339952B8 (en) 2009-12-17 2013-12-19 Greatpoint Energy, Inc. Integrated enhanced oil recovery process
US8669013B2 (en) 2010-02-23 2014-03-11 Greatpoint Energy, Inc. Integrated hydromethanation fuel cell power generation
US8652696B2 (en) 2010-03-08 2014-02-18 Greatpoint Energy, Inc. Integrated hydromethanation fuel cell power generation
JP5559422B2 (ja) 2010-04-26 2014-07-23 グレイトポイント・エナジー・インコーポレイテッド バナジウム回収を伴う炭素質フィードストックの水添メタン化
CN102906230B (zh) 2010-05-28 2015-09-02 格雷特波因特能源公司 液体重烃进料向气态产物的转化
KR101424941B1 (ko) 2010-08-18 2014-08-01 그레이트포인트 에너지, 인크. 탄소질 공급원료의 히드로메탄화
CN103080285A (zh) 2010-09-10 2013-05-01 格雷特波因特能源公司 含碳原料的加氢甲烷化
WO2012061238A1 (en) 2010-11-01 2012-05-10 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
CN103210068B (zh) 2010-11-01 2015-07-08 格雷特波因特能源公司 碳质原料的加氢甲烷化工艺
US8648121B2 (en) 2011-02-23 2014-02-11 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock with nickel recovery
CN103492537A (zh) 2011-04-22 2014-01-01 格雷特波因特能源公司 伴随焦炭选矿的碳质原料加氢甲烷化
WO2012166879A1 (en) 2011-06-03 2012-12-06 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
US20130042824A1 (en) 2011-08-17 2013-02-21 Greatpoint Energy, Inc. Hydromethanation of a carbonaceous feedstock
CN103890148A (zh) 2011-08-17 2014-06-25 格雷特波因特能源公司 碳质原料加氢甲烷化
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CN103974897A (zh) 2011-10-06 2014-08-06 格雷特波因特能源公司 碳质原料的加氢甲烷化
WO2014055349A1 (en) 2012-10-01 2014-04-10 Greatpoint Energy, Inc. Agglomerated particulate low-rank coal feedstock and uses thereof
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Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US3853538A (en) * 1973-07-20 1974-12-10 Steel Corp Use of reducing gas by coal gasification for direct iron ore reduction
US3844766A (en) * 1973-12-26 1974-10-29 Midland Ross Corp Process for reducing iron oxide to metallic sponge iron with liquid or solid fuels
DE2438790B2 (de) * 1974-08-13 1976-09-09 Thyssen Purofer GmbH, 4000 Düsseldorf Verfahren und anlage zur reduktion von eisenerzen, insbesondere von eisenerzpellets
DE2459876B1 (de) * 1974-12-18 1976-06-24 Thyssen Purofer Gmbh Anlage fuer die direktreduktion von eisenerzen
JPS5917163B2 (ja) * 1976-01-14 1984-04-19 三菱重工業株式会社 鉄鉱石のガス還元法

Also Published As

Publication number Publication date
AU4978879A (en) 1980-02-21
SU1052165A3 (ru) 1983-10-30
SE7906809L (sv) 1980-02-16
IN152255B (es) 1983-11-26
CA1118211A (en) 1982-02-16
FI792271A7 (fi) 1981-01-01
LU81597A1 (fr) 1979-12-07
GB2027741A (en) 1980-02-27
ATA552979A (de) 1981-11-15
AU523276B2 (en) 1982-07-22
NZ191204A (en) 1980-11-14
FR2433580B1 (es) 1984-01-27
DE2932939C2 (es) 1987-10-01
PL217733A1 (es) 1980-05-05
AT367456B (de) 1982-07-12
IT1122470B (it) 1986-04-23
GB2027741B (en) 1982-07-14
JPS5528395A (en) 1980-02-28
US4173465A (en) 1979-11-06
BR7905180A (pt) 1980-04-29
PH14399A (en) 1981-06-25
MA18563A1 (fr) 1980-04-01
YU40934B (en) 1986-08-31
NL7906187A (nl) 1980-02-19
JPS6233284B2 (es) 1987-07-20
IT7925044A0 (it) 1979-08-10
ZA793867B (en) 1980-08-27
DE2932939A1 (de) 1980-02-28
FR2433580A1 (fr) 1980-03-14
PL120142B1 (en) 1982-02-27
BE878154A (fr) 1979-12-03
TR20764A (tr) 1982-07-01
CS218587B2 (en) 1983-02-25
GR70352B (es) 1982-09-24
MX152098A (es) 1985-05-29
PT70059A (en) 1979-09-01
SE436760B (sv) 1985-01-21
AR218150A1 (es) 1980-05-15
YU196879A (en) 1982-10-31

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