MY101724A - Improved process for producing metallized pellets - Google Patents

Improved process for producing metallized pellets

Info

Publication number
MY101724A
MY101724A MYPI87000451A MYPI19870451A MY101724A MY 101724 A MY101724 A MY 101724A MY PI87000451 A MYPI87000451 A MY PI87000451A MY PI19870451 A MYPI19870451 A MY PI19870451A MY 101724 A MY101724 A MY 101724A
Authority
MY
Malaysia
Prior art keywords
sulfur
spent
reducing gas
gas
reduction
Prior art date
Application number
MYPI87000451A
Inventor
Willard Hoffman Thomas
Original Assignee
Midrex Int B V Rotterdam Zurich Branch
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 Int B V Rotterdam Zurich Branch filed Critical Midrex Int B V Rotterdam Zurich Branch
Publication of MY101724A publication Critical patent/MY101724A/en

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
    • 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
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • 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
    • Y02P10/134—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 And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture Of Iron (AREA)

Abstract

AN IMPROVED METHOD AND APPARATUS FOR FORMING METALLIZED IRON BY DIRECT REDUCTION OF PARTICULATE IRON OXIDE IS DISCLOSED. IN THE IMPROVED METHOD AND APPARATUS, THE SPENT REDUCTION GAS IS RECYCLED FROM THE REDUCTION FURNACE THROUGH A COLLER-SCRUBBER AND A CATALYTIC-CONTAINING STOICHIOMETRIC GAS REFORMER. IN THE COOLER SCRUBBER, THE SPENT REDUCING GAS INTERACTS WITH SCRUB WATER. DUST HAVING AN AFFINITY FOR SULFUR IS RECOVERED FROM THE PROCESS AND ADDED TO THE SCRUB WATER CAUSING SULFUR IN THE SPENT REDUCING GAS TO FORM SOLIDS WHICH PRECIPITATE OUT AND ARE REMOVED AS SOLID WASTE. LOWERING THE SULFUR CONTENT OF THE SPENT REDUCING GAS REDUCES THE SULFUR CONTAMINATION OF THE CATALYST AND IMPROVES THE EFFICIENCY OF THE PROCESS.(FIG. 1)
MYPI87000451A 1986-04-17 1987-04-07 Improved process for producing metallized pellets MY101724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US85327586A 1986-04-17 1986-04-17

Publications (1)

Publication Number Publication Date
MY101724A true MY101724A (en) 1992-01-17

Family

ID=25315577

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI87000451A MY101724A (en) 1986-04-17 1987-04-07 Improved process for producing metallized pellets

Country Status (5)

Country Link
JP (1) JPS62290811A (en)
AT (1) AT396253B (en)
DE (1) DE3712846A1 (en)
GB (1) GB2189260A (en)
MY (1) MY101724A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2441922C2 (en) 2005-08-30 2012-02-10 Е.И.Дюпон Де Немур Энд Компани Ore reduction process and titanium oxide and iron metallization product
WO2009052066A1 (en) 2007-10-15 2009-04-23 E. I. Du Pont De Nemours And Company Ore reduction process using carbon based materials having a low sulfur content and titanium oxide and iron metallization product therefrom
CN106191362B (en) * 2016-09-13 2018-02-09 江苏省冶金设计院有限公司 A kind of nozzle-type of gas-based shaft kiln also Primordial Qi enters furnace apparatus and its method
CN106191361B (en) * 2016-09-13 2018-02-09 江苏省冶金设计院有限公司 A kind of duct type of gas-based shaft kiln also Primordial Qi enters furnace apparatus and its method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128174A (en) * 1959-06-26 1964-04-07 Fierro Esponja Method of making sponge iron
US3748120A (en) * 1971-04-15 1973-07-24 Midland Ross Corp Method of and apparatus for reducing iron oxide to metallic iron
US3749386A (en) * 1971-07-01 1973-07-31 Midland Ross Corp Method and means for reducing iron oxides in a gaseous reduction process
DE2241168A1 (en) * 1972-08-22 1974-03-28 Metallgesellschaft Ag METHOD FOR GENERATING SPONGE IRON
US4049441A (en) * 1976-03-04 1977-09-20 Midrex Corporation Method of extending the life of a catalyst in a process of producing metallic iron pellets
US4032352A (en) * 1976-05-03 1977-06-28 Midrex Corporation Binder composition
JPS5946286B2 (en) * 1977-09-05 1984-11-12 新日本製鐵株式会社 vacuum degassing container
JPS5710928A (en) * 1980-06-24 1982-01-20 Toshiba Corp Manufacture of semiconductor element

Also Published As

Publication number Publication date
GB8707680D0 (en) 1987-05-07
AT396253B (en) 1993-07-26
JPH0575808B2 (en) 1993-10-21
ATA88887A (en) 1992-11-15
DE3712846A1 (en) 1987-11-12
DE3712846C2 (en) 1993-03-11
JPS62290811A (en) 1987-12-17
GB2189260A (en) 1987-10-21

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