MY105280A - Process of treating natural gas for use in the direct reduction of iron ore in a shaft furnace. - Google Patents

Process of treating natural gas for use in the direct reduction of iron ore in a shaft furnace.

Info

Publication number
MY105280A
MY105280A MYPI91000111A MYPI19910111A MY105280A MY 105280 A MY105280 A MY 105280A MY PI91000111 A MYPI91000111 A MY PI91000111A MY PI19910111 A MYPI19910111 A MY PI19910111A MY 105280 A MY105280 A MY 105280A
Authority
MY
Malaysia
Prior art keywords
separator
withdrawn
methane
gas
iron ore
Prior art date
Application number
MYPI91000111A
Inventor
Jauernik Ulf
Rose Fritz
Kriebel Manfred
Wilhelm Joachim
Original Assignee
Metallgesellschaft Ag
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 Metallgesellschaft Ag filed Critical Metallgesellschaft Ag
Publication of MY105280A publication Critical patent/MY105280A/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
    • C21B13/0073—Selection or treatment of the reducing gases
    • 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
    • C21B2100/62—Energy conversion other than by heat exchange, e.g. by use of exhaust gas in energy production
    • 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
    • Y02P10/143—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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

FOR A DIRECT REDUCTION OF GRANULAR IRON ORE IN A SHAFT FURNACE (25), THE LATTER IS SUPPLIED WITH A REDUCING GAS (31), WHICH CONTAINS HYDROGEN AND CARBON MONOXIDE. THE REDUCING GAS IS PRODUCED IN THAT A HIGH- METHANE GAS (29) IS CRACKED AT TEMPERATURES OF 800 TO 1200?C ON AN INDIRECTLY HEATED CATALYST (26). NATURAL GAS (1) IS COMPRESSED TO A PRESSURE OF 20 TO 40 BARS AND IS THEN COOLED TO - 40 TO- 80?C IN A HEAT EXCHANGE ZONE (3) AND IS THEN FED TO A FIRST SEPARATOR (5), FROM WHICH A FIRST ETHANE CONTAINING CONDENSATE (6) IS WITHDRAWN, WHICH IS PARTLY PRESSURE- RELIEVED AND THEN FED TO A SECOND SEPARATOR (10). A METHANE FRACTION (11) IS WITHDRAWN FROM THE FIRST SEPARATOR AND IS PARTLY PRESSURE RELIEVED AND THUS COOLED. FORM THE SECOND SEPARATOR, A HIGH-METHANE GAS WITHDRAWN, WHICH IS AT A TEMPERATURE OF - 75 TO - 100?C AND CONTAINS 75BY VOLUME METHANE AND 5 TO 20BY VOLUME ETHANE. THE HIGH- METHANE GAS IS HEATED IN THE HEAT EXCHANGE ZONE (3) AND AFTER A FURTHER HEATING IS PASSED OVER THE INDIRECTLY HEATED CATALYST (26). A SECOND ETHANE CONTAINING CONDENSATE IS WITHDRAWN FROM THE SECOND SEPARATOR AND IS EVAPORATED IN THE HEAT EXCHANGE ZONE (3). (FIG. 1)
MYPI91000111A 1990-09-22 1991-01-24 Process of treating natural gas for use in the direct reduction of iron ore in a shaft furnace. MY105280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4030093A DE4030093A1 (en) 1990-09-22 1990-09-22 Granular iron ore direct redn. in blast furnace using natural gas - with high ethane content as source of methane for producing carbon mon:oxide and hydrogen@

Publications (1)

Publication Number Publication Date
MY105280A true MY105280A (en) 1994-09-30

Family

ID=6414798

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI91000111A MY105280A (en) 1990-09-22 1991-01-24 Process of treating natural gas for use in the direct reduction of iron ore in a shaft furnace.

Country Status (2)

Country Link
DE (1) DE4030093A1 (en)
MY (1) MY105280A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404600B (en) * 1997-03-12 1998-12-28 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR TREATING REDUCING GAS FOR REDUCING ORES
IT1302811B1 (en) 1998-12-11 2000-09-29 Danieli & C Ohg Sp PROCEDURE AND RELATED APPARATUS FOR DIRECT REDUCTION OF IRON OXIDES
IT201900021228A1 (en) * 2019-11-14 2021-05-14 Danieli Off Mecc METHOD AND RELATED APPARATUS FOR THE PRODUCTION OF IRON FROM DIRECT REDUCTION OF FERROUS MINERAL

Also Published As

Publication number Publication date
DE4030093A1 (en) 1992-03-26

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