GB615720A - Improvements in or relating to the production of iron - Google Patents
Improvements in or relating to the production of ironInfo
- Publication number
- GB615720A GB615720A GB17320/45A GB1732045A GB615720A GB 615720 A GB615720 A GB 615720A GB 17320/45 A GB17320/45 A GB 17320/45A GB 1732045 A GB1732045 A GB 1732045A GB 615720 A GB615720 A GB 615720A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- reducing gas
- desulphurized
- fresh
- reducing
- 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
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
-
- 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)
Abstract
Iron oxide ores are reduced by (a) bringing into contact with a desulphurized reducing gas at a temperature of 900-1,350 DEG F., said reducing gas consisting principally of hydrogen and methane but containing CO and CO2 in sum total less than 15 per cent by volume and minor amounts of H2 S and H2 O; (b) removing at least a portion of the spent gas, cooling it, mixing with fresh desulphurized reducing gas and recirculating, the amount of gas thus circulated being limited so as not to increase the combined percentage of CO and CO2 beyond said 15 per cent. Gases referred to are retort coal gas, oil gas and particularly coke oven gas, the step of fire heating the gas in the latter case being essential. In the examples, one part of fresh gas is mixed with (a) 2.77; (b) 1 part of spent gas for recirculation. Heat from the used gases may be employed to pre-heat incoming reducing gas.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17320/45A GB615720A (en) | 1945-07-06 | 1945-07-06 | Improvements in or relating to the production of iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB17320/45A GB615720A (en) | 1945-07-06 | 1945-07-06 | Improvements in or relating to the production of iron |
Publications (1)
Publication Number | Publication Date |
---|---|
GB615720A true GB615720A (en) | 1949-01-11 |
Family
ID=10093104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB17320/45A Expired GB615720A (en) | 1945-07-06 | 1945-07-06 | Improvements in or relating to the production of iron |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB615720A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2375327A1 (en) * | 1975-10-14 | 1978-07-21 | Hazen Research | Direct steel prodn. from iron oxides - by reducing the oxides, forming iron carbide and charging to a basic oxygen furnace to obtain steel |
-
1945
- 1945-07-06 GB GB17320/45A patent/GB615720A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2375327A1 (en) * | 1975-10-14 | 1978-07-21 | Hazen Research | Direct steel prodn. from iron oxides - by reducing the oxides, forming iron carbide and charging to a basic oxygen furnace to obtain steel |
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