WO2016063308A1 - 還元鉄の製造システム及び還元鉄の製造方法 - Google Patents
還元鉄の製造システム及び還元鉄の製造方法 Download PDFInfo
- Publication number
- WO2016063308A1 WO2016063308A1 PCT/JP2014/005308 JP2014005308W WO2016063308A1 WO 2016063308 A1 WO2016063308 A1 WO 2016063308A1 JP 2014005308 W JP2014005308 W JP 2014005308W WO 2016063308 A1 WO2016063308 A1 WO 2016063308A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- coal
- gas
- reduced iron
- gasification
- iron
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 57
- 239000003245 coal Substances 0.000 claims abstract description 89
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000003034 coal gas Substances 0.000 claims abstract description 51
- 238000002309 gasification Methods 0.000 claims abstract description 33
- 239000007800 oxidant agent Substances 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 230000001590 oxidative effect Effects 0.000 claims description 22
- 239000012535 impurity Substances 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 54
- 238000006722 reduction reaction Methods 0.000 description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 22
- 229910002091 carbon monoxide Inorganic materials 0.000 description 22
- 229910052742 iron Inorganic materials 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 8
- 229910052717 sulfur Inorganic materials 0.000 description 8
- 239000011593 sulfur Substances 0.000 description 8
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 150000002431 hydrogen Chemical class 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000571 coke Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2300/00—Process aspects
- C21B2300/02—Particular sequence of the process steps
-
- 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
Definitions
- the present invention relates to a reduced iron manufacturing system and a reduced iron manufacturing method.
- the coal gas generated when coal is gasified contains the same kind of reducing components (CO, H 2 ) as natural gas or reformed gas. Accordingly, a method for producing directly reduced iron in which steam coal, which is less expensive than raw coal for coke production, is gasified in a gasification furnace and this coal gas is used as a reducing gas has also been proposed (for example, Patent Document 1). -2 etc.).
- An aspect of the present invention has been made in view of such circumstances, and when reduced iron is produced from iron oxide using coal gas as a reducing gas, compared with the conventional production of reduced iron. It is an object of the present invention to provide a reduced iron production system and a reduced iron production method capable of improving the efficiency of iron.
- the production system for reduced iron includes an injection well for sending an oxidant gas to a coal bed existing underground, and a gas in which coal is gasified using the oxidant gas in the coal bed.
- the method for producing reduced iron includes a step of supplying an oxidant gas to an underground coal bed, a step of gasifying coal using the oxidant gas in the coal bed, and the coal gas To the ground reduction furnace, and in the reduction furnace, using the coal gas as a reducing gas and reducing iron oxide to reduced iron.
- the efficiency of the production of reduced iron is improved compared to the conventional case. I can plan.
- FIG. 1 is a diagram showing an example of a reduced iron production system according to an embodiment of the present invention.
- Underground coal gasification is a technology that generates coal gas such as hydrogen gas and carbon monoxide gas by gasifying coal in the coal bed existing underground.
- an injection well is excavated from the ground into a coal bed deep underground (for example, a depth of 1000 m or more), and an oxidant gas (air, oxygen gas, etc.) is sent.
- an oxidant gas air, oxygen gas, etc.
- the reduced iron production system includes an injection well for sending an oxidant gas to a coal bed existing underground, and coal gasification using the oxidant gas in the coal bed.
- a gasification region to be performed a production well for sending coal gas generated by coal gasification to the ground, and a reduction furnace that uses coal gas as a reducing gas and reduces iron oxide to reduced iron.
- the furnace is arranged directly above or near the production well.
- the manufacturing method of the reduced iron of the 2nd aspect of this invention is the process of supplying oxidant gas to an underground coal bed, The process of gasifying coal using oxidant gas in a coal bed, A step of introducing the coal gas to a reduction furnace on the ground, and a step of reducing the iron oxide to reduced iron using the coal gas as the reduction gas in the reduction furnace.
- reduced iron can be efficiently produced from iron oxide using UCG technology coal gas as the reducing gas.
- the method for producing reduced iron according to the third aspect of the present invention is the method for producing reduced iron according to the second aspect, wherein impurities generated in coal gasification remain in the coal bed and are separated from coal gas. The release to the reduction furnace is suppressed.
- Impurities for example, CO 2 , sulfur component, zinc component, etc.
- Impurities generated by coal gasification may remain in the underground coal bed in the process of coal gasification and may be separated from coal gas. Therefore, it is considered that such impurities can be efficiently removed. That is, in the UCG technology, for example, coal gas with reduced CO 2 emissions can be obtained, and the environmental load is small.
- impurities when gasifying coal, impurities can be appropriately removed from the coal gas as compared with the conventional case. For example, the release of CO 2 generated by coal gasification to the reduction furnace can be suppressed. Therefore, it is possible to omit or simplify a separator (gas purification facility) that separates impurities (for example, CO 2 , sulfur component, zinc component, etc.) generated in coal gasification from coal gas. As a result, the cost in manufacturing reduced iron can be reduced as compared with the conventional case.
- a separator gas purification facility
- FIG. 1 is a diagram illustrating an example of a reduced iron production system in which a method for producing reduced iron according to an embodiment of the present invention is performed.
- the reduced iron manufacturing system 100 includes a UCG plant 10, a reduction furnace 20 on the ground 14, and a separator 30 (gas purification equipment).
- the UCG plant 10 includes an injection well 11, an underground coal layer 12, and a production well 13.
- the injection well 11 is a well for sending an oxidant gas from an oxidant gas supply device (not shown) to the coal bed 12 existing in the underground 15.
- the oxidant gas may be any gas as long as it can oxidize (combust) the coal in the coal layer 12.
- oxidizing agent gas means the gas containing the component which can oxidize (combust) coal. Examples of the oxidant gas include air and oxygen gas.
- coal layer 12 When the oxidant gas and water are supplied to the coal layer 12, oxidation (combustion) and gasification occur on the surface of the coal layer 12. That is, heat is generated by the oxidation (combustion) of coal, and carbon (C) and water vapor (H 2 O) react in the high-temperature gasification region 12 A of the coal layer 12. Then, coal gas, such as hydrogen (H 2 ) and carbon monoxide (CO), is generated.
- the coal of the coal layer 12 may be not only high-grade coal but also low-grade coal (for example, lignite).
- impurities for example, CO 2 , sulfur component, zinc component, etc.
- the depth of the coal bed 12 is set to such a depth that the CO 2 gas remaining in the coal bed 12 is not discharged to the outside air on the ground 14.
- the depth of the coal layer 12 may be 1000 m or more.
- the production well 13 is a well for sending coal gas generated by coal gasification to the ground 14.
- coal gas is used as a reducing gas for iron oxide.
- the coal gas may be any gas as long as it can be used as a reducing gas for iron oxide.
- Examples of the coal gas include hydrogen gas and carbon monoxide gas.
- Such UCG technology has an advantage that it can effectively utilize unused coal resources such as high sulfur content, high ash content coal, and steep grade coal. It is also promising from the viewpoint of environment and global warming prevention, such as the fact that the ash after combustion does not appear on the ground 14 and the generation of CO 2 is less than the oxidation (combustion) and gasification of coal on the ground 14. Technology.
- the separator 30 is connected to the production well 13 through appropriate piping. Thereby, the coal gas from the production well 13 flows into the separator 30.
- the separator 30 is, impurities generated by coal gasification (e.g., CO 2, sulfur components, zinc components, etc.) is separated from the coal gas.
- the separator 30 may have any configuration as long as impurities generated by coal gasification (for example, CO 2 , sulfur component, zinc component, etc.) can be separated from the coal gas.
- the separator 30 may be disposed immediately above or near the production well 13, or the separator 30 may be disposed at an appropriate location in the underground 15.
- the impurities separated by the separator 30 may be reused or returned to the underground 15.
- the internal configuration of the separator 30 is known. Therefore, description of this configuration is omitted.
- the reduction furnace 20 uses the above coal gas as a reducing gas and reduces iron oxide to reduced iron.
- the reduction furnace 20 is disposed immediately above the production well 13 or in the vicinity thereof, and is connected to the separator 30 via an appropriate pipe. Thereby, the coal gas from the separator 30 flows into the reduction furnace 20.
- the above-mentioned vicinity means that the coal gas raised to the ground 14 by the production well 13 is not transported over a long distance by a pipeline or the like.
- the reduced iron is obtained, for example, by an iron manufacturing method in which an iron oxide-containing raw material (iron oxide material) produced from lump iron ore or fine iron ore is directly reduced with a reducing gas at a lower temperature than a blast furnace.
- the reducing furnace 20 may have any configuration as long as it can reduce iron oxide to reduced iron using a reducing gas.
- Examples of the gas-based direct reduction method of iron oxide by the reduction furnace 20 include the Midrex method.
- the iron oxide material may be manufactured not only from high-grade iron ore but also from low-grade iron ore (for example, the proportion of Fe is about 30%).
- oxidant gas is supplied to the coal bed 12 in the underground 15.
- an oxidant gas such as air or oxygen gas is supplied to the coal bed 12 existing in the underground 15 from an oxidant gas supply unit on the ground 14 (not shown) using the injection well 11.
- coal of the coal bed 12 is gasified using said oxidizing gas. Specifically, heat is generated by oxidation (combustion) of coal, and carbon (C) and water vapor (H 2 O) react in the high-temperature gasification region 12A of the coal layer 12. Then, coal gas, such as hydrogen (H 2 ) and carbon monoxide (CO), is generated.
- oxidizing gas such as hydrogen (H 2 ) and carbon monoxide (CO)
- coal gas such as hydrogen (H 2 ) and carbon monoxide (CO) is led from the coal bed 12 in the underground 15 to the separator 30, and further from the separator 30. Guided to the reduction furnace 20.
- H 2 hydrogen
- CO carbon monoxide
- impurities for example, CO 2 , sulfur component, zinc component, etc.
- impurities generated by coal gasification are separated from the coal gas using the separator 30.
- impurities may remain in the coal layer 12 in the underground 15 during the coal gasification process and may be separated from the coal gas. Therefore, impurities can be removed efficiently.
- the above coal gas is used as a reducing gas, and iron oxide is reduced to reduced iron.
- iron oxide-containing raw material an iron oxide material manufactured from lump iron ore or fine iron ore is used, and this iron oxide material is supplied into a reduction furnace 20 heated to a predetermined temperature.
- the reducing gas is introduced into the reducing furnace 20, the iron oxide material comes into contact with the reducing gas and the iron oxide reduction reaction proceeds. This produces pellets of direct reduced iron (DRI-Direct Reduced Iron).
- the reduced iron pellets are sent to, for example, an electric furnace (not shown) and subjected to melting, impurity removal, component adjustment, etc., and then subjected to continuous casting, rolling, etc. to become iron products.
- an electric furnace not shown
- the reduced iron pellets are sent to, for example, an electric furnace (not shown) and subjected to melting, impurity removal, component adjustment, etc., and then subjected to continuous casting, rolling, etc. to become iron products.
- the efficiency of producing reduced iron can be improved as compared with the conventional case.
- the efficiency of manufacturing reduced iron can be improved.
- coal gas compared to the conventional impurities from coal gas (e.g., CO 2, sulfur components, zinc components, etc.) may be suitably removed. That is, impurities generated by coal gasification may remain in the coal layer 12 in the underground 15 and be separated from the coal gas.
- the efficiency of the production of reduced iron is improved compared to the conventional case. I can plan. Therefore, one embodiment of the present invention can be used, for example, in a system and method for producing reduced iron from iron oxide using coal gas as a reducing gas.
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Abstract
Description
最近、従来の採掘方法では、技術的あるいは経済的に採掘できない石炭を地下でガス化することで、石炭資源を有効に活用し得る技術が注目されている。この石炭地下ガス化(UCG: Underground Coal Gasification)は、地下に存在する石炭層の石炭を原位置でガス化させ、水素ガス、一酸化炭素ガス等の石炭ガスを生成する技術である。具体的には、地下深く(例えば、1000m以上の深さ)の石炭層に地面から注入井を掘削し、酸化剤ガス(空気、酸素ガス等)を送る。これにより、地下の石炭層において、高温で石炭をガス化させる。石炭ガス化で生成されるガスは、生産井を通じて地上に送られる。
[装置構成]
図1は、本発明の実施形態による還元鉄の製造方法が行われる還元鉄の製造システムの一例を示した図である。
[動作]
以下、本発明の実施形態による還元鉄の製造方法の一例について図1を参照しながら説明する。
11 注入井
12 石炭層
12A ガス化領域
13 生産井
14 地上
15 地下
20 還元炉
30 分離器
100 還元鉄の製造システム
Claims (3)
- 地下に存在する石炭層に酸化剤ガスを送るための注入井と、
石炭層において、酸化剤ガスを用いて石炭のガス化が行われるガス化領域と、
石炭ガス化で生成される石炭ガスを地上に送るための生産井と、
前記石炭ガスを還元ガスに用い、酸化鉄を還元鉄に還元する還元炉と、
を備え、
前記還元炉は、前記生産井の直上又はその近傍に配置されている、還元鉄の製造システム。 - 地下の石炭層へ酸化剤ガスを供給する工程と、
前記石炭層において、前記酸化剤ガスを用いて石炭をガス化させる工程と、
前記石炭ガスを地上の還元炉へと導く工程と、
前記還元炉において、前記石炭ガスを還元ガスに用い、酸化鉄を還元鉄に還元する工程と、を備える還元鉄の製造方法。 - 前記石炭ガス化で発生する不純物は、前記石炭層に残留し、前記石炭ガスから分離することで前記還元炉への放出が抑制される請求項2に記載の還元鉄の製造方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2014409227A AU2014409227B2 (en) | 2014-10-20 | 2014-10-20 | System for and Method of Manufacturing Reduced Iron |
JP2015510211A JP5904477B1 (ja) | 2014-10-20 | 2014-10-20 | 還元鉄の製造システム及び還元鉄の製造方法 |
PCT/JP2014/005308 WO2016063308A1 (ja) | 2014-10-20 | 2014-10-20 | 還元鉄の製造システム及び還元鉄の製造方法 |
US15/102,243 US20160319382A1 (en) | 2014-10-20 | 2014-10-20 | System for and method of manufacturing reduced iron |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2014/005308 WO2016063308A1 (ja) | 2014-10-20 | 2014-10-20 | 還元鉄の製造システム及び還元鉄の製造方法 |
Publications (1)
Publication Number | Publication Date |
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WO2016063308A1 true WO2016063308A1 (ja) | 2016-04-28 |
Family
ID=55747785
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PCT/JP2014/005308 WO2016063308A1 (ja) | 2014-10-20 | 2014-10-20 | 還元鉄の製造システム及び還元鉄の製造方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20160319382A1 (ja) |
JP (1) | JP5904477B1 (ja) |
AU (1) | AU2014409227B2 (ja) |
WO (1) | WO2016063308A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107939370A (zh) * | 2017-12-11 | 2018-04-20 | 山东科技大学 | 一种条带式煤炭地下气化系统及生产方法 |
JP2020158549A (ja) * | 2019-03-25 | 2020-10-01 | 国立大学法人室蘭工業大学 | 石炭の地下ガス化方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107083948A (zh) * | 2017-06-16 | 2017-08-22 | 新疆国利衡清洁能源科技有限公司 | 一种煤炭地下气化炉炉身结构及构建方法 |
CN112253076B (zh) * | 2020-11-26 | 2021-08-31 | 福州大学 | 一种地下硫铁矿的化学开采方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5753592A (en) * | 1980-08-01 | 1982-03-30 | Air Prod & Chem | Coal gasification in scene |
JPS57168991A (en) * | 1981-03-21 | 1982-10-18 | Krupp Gmbh | Solid fuel underground gasification |
JPS62174310A (ja) * | 1986-01-27 | 1987-07-31 | Sumitomo Metal Ind Ltd | 銑鉄原料の切出・装入装置 |
JP2000212620A (ja) * | 1999-01-28 | 2000-08-02 | Nippon Steel Corp | 還元鉄製造方法 |
-
2014
- 2014-10-20 JP JP2015510211A patent/JP5904477B1/ja not_active Expired - Fee Related
- 2014-10-20 US US15/102,243 patent/US20160319382A1/en not_active Abandoned
- 2014-10-20 WO PCT/JP2014/005308 patent/WO2016063308A1/ja active Application Filing
- 2014-10-20 AU AU2014409227A patent/AU2014409227B2/en not_active Ceased
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5753592A (en) * | 1980-08-01 | 1982-03-30 | Air Prod & Chem | Coal gasification in scene |
JPS57168991A (en) * | 1981-03-21 | 1982-10-18 | Krupp Gmbh | Solid fuel underground gasification |
JPS62174310A (ja) * | 1986-01-27 | 1987-07-31 | Sumitomo Metal Ind Ltd | 銑鉄原料の切出・装入装置 |
JP2000212620A (ja) * | 1999-01-28 | 2000-08-02 | Nippon Steel Corp | 還元鉄製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107939370A (zh) * | 2017-12-11 | 2018-04-20 | 山东科技大学 | 一种条带式煤炭地下气化系统及生产方法 |
JP2020158549A (ja) * | 2019-03-25 | 2020-10-01 | 国立大学法人室蘭工業大学 | 石炭の地下ガス化方法 |
JP7227605B2 (ja) | 2019-03-25 | 2023-02-22 | 国立大学法人室蘭工業大学 | 石炭の地下ガス化方法 |
Also Published As
Publication number | Publication date |
---|---|
JP5904477B1 (ja) | 2016-04-13 |
US20160319382A1 (en) | 2016-11-03 |
AU2014409227A1 (en) | 2016-06-16 |
JPWO2016063308A1 (ja) | 2017-04-27 |
AU2014409227B2 (en) | 2017-01-12 |
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