UA105772C2 - Спосіб прямого відновлення залізної руди - Google Patents

Спосіб прямого відновлення залізної руди

Info

Publication number
UA105772C2
UA105772C2 UAA201105712A UAA201105712A UA105772C2 UA 105772 C2 UA105772 C2 UA 105772C2 UA A201105712 A UAA201105712 A UA A201105712A UA A201105712 A UAA201105712 A UA A201105712A UA 105772 C2 UA105772 C2 UA 105772C2
Authority
UA
Ukraine
Prior art keywords
gas
reactor
iron ore
recycled
carbon dioxide
Prior art date
Application number
UAA201105712A
Other languages
English (en)
Russian (ru)
Inventor
Клаус Кноп
Стен Онгстрем
Original Assignee
Луоссаваара-Кіірунаваара Аб
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 Луоссаваара-Кіірунаваара Аб filed Critical Луоссаваара-Кіірунаваара Аб
Publication of UA105772C2 publication Critical patent/UA105772C2/uk

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
    • C21B13/02—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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/50—Carbon oxides
    • B01D2257/504—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
    • C21B2100/20—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
    • C21B2100/26—Increasing the gas reduction potential of recycled exhaust gases by adding additional fuel in recirculation pipes
    • 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
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/28—Increasing the gas reduction potential of recycled exhaust gases by separation
    • C21B2100/284—Increasing the gas reduction potential of recycled exhaust gases by separation of nitrogen
    • 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
    • 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
    • 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
    • Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Iron (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

Даний винахід стосується способу прямого відновлення залізної руди, що виконується за допомогою агрегату (1), що включає піч (2) прямого відновлення, яка має щонайменше одну реакторну зону (8) відновлення залізної руди у верхній частині вищевказаного і щонайменше одну зону (9) навуглецьовування та одну зону (10) охолоджування відновленої залізної руди в нижній частині вищевказаної печі, і засобу подачі суміші відновного газу в піч прямого відновлення відповідно до зони відновлення, засобу для рециркуляції відхідного газу, що відходить з печі прямого відновлення для одержання синтез-газу і змішування рециркулюючого газу з природним газом для утворення відновної газової суміші. Відповідно до винаходу на першій стадії (5) перетворення монооксид вуглецю СО, що не вступив в реакцію, і пару, присутню у відхідному газі, перетворюють в діоксид вуглецю і водень відповідно до реакції конверсії водного газу СО+НO=СО+Н, на другій стадії перетворення зневоднений відхідний газ, що включає, в основному, діоксид вуглецю і водень, обробляють для видалення діоксиду вуглецю, і на третій стадії перетворення виконують фізичне розділення азоту і оксиду вуглецю від відновного синтез-газу для зниження рівнів СО і будь-яких існуючих в рециркулюючому газі інших газів до такого низького рівня, наскільки це можливо, щоб рециркулюючий відновний газ був, наскільки це можливо, наближеним до чистого водню Н.
UAA201105712A 2008-10-06 2009-09-22 Спосіб прямого відновлення залізної руди UA105772C2 (uk)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0802100A SE532975C2 (sv) 2008-10-06 2008-10-06 Förfarande för produktion av direktreducerat järn
PCT/SE2009/051049 WO2010042023A1 (en) 2008-10-06 2009-09-22 Process for production of direct reduced iron

Publications (1)

Publication Number Publication Date
UA105772C2 true UA105772C2 (uk) 2014-06-25

Family

ID=42100796

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA201105712A UA105772C2 (uk) 2008-10-06 2009-09-22 Спосіб прямого відновлення залізної руди

Country Status (13)

Country Link
US (1) US8709128B2 (uk)
EP (1) EP2347018A4 (uk)
KR (1) KR101587199B1 (uk)
CN (1) CN102232119B (uk)
AU (1) AU2009302946B2 (uk)
BR (1) BRPI0920029B1 (uk)
CA (1) CA2739577A1 (uk)
EA (1) EA017978B1 (uk)
MX (1) MX2011003644A (uk)
MY (1) MY153906A (uk)
SE (1) SE532975C2 (uk)
UA (1) UA105772C2 (uk)
WO (1) WO2010042023A1 (uk)

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KR102112017B1 (ko) 2018-10-29 2020-05-18 (주)케이텍 직접환원철의 고효율 건조를 위한 열풍 타입 고속 건조장치
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IT201900002081A1 (it) * 2019-02-13 2020-08-13 Danieli Off Mecc Impianto di riduzione diretta e relativo processo
CN109913606A (zh) * 2019-03-27 2019-06-21 东北大学 一种基于感应加热的煤制氢气竖炉炼铁系统及工艺
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Also Published As

Publication number Publication date
KR20110070893A (ko) 2011-06-24
CN102232119B (zh) 2013-12-18
EP2347018A4 (en) 2017-04-26
EA201170534A1 (ru) 2011-10-31
SE0802100A1 (sv) 2010-04-07
AU2009302946B2 (en) 2014-12-18
BRPI0920029B1 (pt) 2018-01-09
CA2739577A1 (en) 2010-04-15
MY153906A (en) 2015-04-15
BRPI0920029A2 (pt) 2015-12-15
EA017978B1 (ru) 2013-04-30
US8709128B2 (en) 2014-04-29
CN102232119A (zh) 2011-11-02
WO2010042023A1 (en) 2010-04-15
EP2347018A1 (en) 2011-07-27
MX2011003644A (es) 2011-07-28
KR101587199B1 (ko) 2016-01-20
US20110247457A1 (en) 2011-10-13
AU2009302946A1 (en) 2010-04-15
SE532975C2 (sv) 2010-06-01

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