AU2012227466B2 - Coal gasification method - Google Patents
Coal gasification method Download PDFInfo
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- AU2012227466B2 AU2012227466B2 AU2012227466A AU2012227466A AU2012227466B2 AU 2012227466 B2 AU2012227466 B2 AU 2012227466B2 AU 2012227466 A AU2012227466 A AU 2012227466A AU 2012227466 A AU2012227466 A AU 2012227466A AU 2012227466 B2 AU2012227466 B2 AU 2012227466B2
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- coal
- molten slag
- slag
- gasification furnace
- phase fraction
- Prior art date
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- 238000002309 gasification Methods 0.000 title claims abstract description 79
- 239000003245 coal Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims description 21
- 239000002893 slag Substances 0.000 claims abstract description 112
- 239000007790 solid phase Substances 0.000 claims abstract description 36
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 239000007791 liquid phase Substances 0.000 claims description 21
- 239000007787 solid Substances 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 13
- 239000000203 mixture Substances 0.000 description 8
- 230000003179 granulation Effects 0.000 description 6
- 238000005469 granulation Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910052810 boron oxide Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- MOWNZPNSYMGTMD-UHFFFAOYSA-N oxidoboron Chemical class O=[B] MOWNZPNSYMGTMD-UHFFFAOYSA-N 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical class [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical class [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/723—Controlling or regulating the gasification process
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1846—Partial oxidation, i.e. injection of air or oxygen only
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/52—Ash-removing devices
- C10J3/526—Ash-removing devices for entrained flow gasifiers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The temperature in a gasification furnace (3) is regulated in such a manner that a solid phase fraction is contained in a range in which the solid phase rate of a molten slag (S1) that forms in the gasification furnace (3) of a coal gasifier (100) is not more than 35 vol%.
Description
DESCRIPTION
COAL GASIFICATION METHOD
Technical Field [0001]
The present invention relates to a coal gasification method of maintaining a slag, which coats the inside of a gasification furnace in which coal is partially oxidized to be gasified, in an appropriate amount so as to maximize the operating efficiency.
Background Art [0002]
In the related art, as this type of coal gasifier, for example, techniques disclosed in PTLs 1 to 3 are known. PTLs 1 and 2 disclose a coal gasifier using a reactor having two chambers in two upper and lower stages in which a gasification furnace is provided in the lower stage; and a reformer is provided in the upper stage. In this coal gasifier, oxygen, or the combination of oxygen and water vapor is introduced to the lower gasification furnace with coal, and then the coal is partially oxidized in the gasification furnace to produce gasified gas. Then, coal and hydrogen are introduced to the upper reformer, and then the gasified gas produced in the gasification furnace is pyrolized in the reformer to produce gas, oil and char.
With a reactor in which two chambers are provided in two stages as described above, a portion where coal is gasified and a portion where the gasified gas is hydrothermally decomposed are separated from each other. Therefore, the operating conditions of each portion can be freely set.
[0003]
In a coal gasifier disclosed in PTL 3, gas is produced by blowing pulverized coal and a gasifying agent (for example, oxygen-containing gas) into a gasification furnace under increased pressure at a high temperature and partially oxidizing the pulverized coal in a gasifying portion inside the gasification furnace.
In addition, PTL 4 discloses a method for the gasification of a petroleum coke feedstock in which a slag viscosity is appropriately adjusted by determining an optimum composition based on a ternary component phase diagram composed of X (a basic ash-component selected from a group consisting of CaO, CaCCfy MgO, MgCC>3, iron oxides, boron oxides, sodium oxides and potassium oxides and mixtures thereof), AI2O3, and S1O2.
Citation List Patent Literature [0004] [PTL 1] Japanese Unexamined Patent Application, First Publication No. 2008-174583 [PTL 2] Japanese Unexamined Patent Application, First Publication No. 2005-162896 [PTL 3] Japanese Unexamined Patent Application, First Publication No. HI 1-140464 [PTL 4] Published Japanese Translation No. H09-505092 of the PCT International Publication
Summary of Invention Technical Problem [0005]
Incidentally, in gasification furnaces of the coal gasifiers disclosed in PTLs 1 to 4, a molten slag is produced as a by-product from ash in coal, and a wall surface inside the furnace is coated with this molten slag. Most of the molten slag is guided to a water bath (granulation portion), which is positioned below the gasification furnace, through a slag tap hole which is provided in the bottom of the gasification furnace.
However, in the coal gasification furnaces disclosed in PTLs 1 to 4, it is difficult to maintain a slag in an appropriate amount so as to maximize the operating efficiency. When a slag is not maintained in an appropriate amount, for example, when the amount thereof is insufficient, heat is excessively leaked from a water wall furnace and thus, the supply amount of oxygen gas used to maintain an appropriate gasification temperature increases. As a result, the cost of operating the gasification furnace increases.
[0006]
The invention has been made in consideration of the above-described circumstances, and an object thereof is to provide a coal gasification method capable of maintaining a slag, with which a furnace wall of a coal gasifier is coated, in an appropriate amount.
Solution to Problem [0007]
According to the invention, there is provided a coal gasification method of a coal gasifier including a gasification furnace in which coal is partially oxidized to be gasified, the method including regulating an internal temperature of the gasification furnace such that a molten slag, which is formed in the gasification furnace, contains a solid content in a range in which a solid phase fraction of the molten slag is lower than or equal to 35 vol%.
[0008]
According to the invention, since the viscosity of a molten slag gradually increases along with an increase in solid phase fraction, the slag with which a furnace wall is coated can be maintained in an appropriate amount.
That is, unless a molten slag contains solid content, the viscosity of the molten slag is low. Therefore, there is a concern that the slag which coats the inside of a gasification furnace may not be maintained in an appropriate amount. On the other hand, when the solid phase fraction of a molten slag is greater than 35 vol%, the molten slag is rapidly solidified with a small decrease in temperature. Therefore, there is a concern that the operation of a gasification furnace may be adversely affected.
[0009]
In addition, in the coal gasification method according to the invention, the internal temperature may be regulated such that the solid phase fraction of the molten slag is preferably lower than or equal to 20 vol%.
[0010]
According to the present invention, an internal temperature of a gasification furnace of a coal gasifier is regulated such that a solid phase fraction of a molten slag, which is formed in the gasification furnace, is preferably lower than or equal to 20 vol%. As a result, the slag with which a furnace wall is coated can be maintained in an optimum amount.
According to an aspect of the present invention, there is provided a coal gasification method of a coal gasifier including a gasification furnace in which coal is partially oxidized to be gasified, the method comprising: obtaining a correlation in advance between a temperature of a molten slag, which is produced when coal including predetermined components is put into the gasification furnace, and a liquid phase fraction or a solid phase fraction of the molten slag; and regulating an internal temperature of the gasification furnace such that a molten slag, which is formed in the gasification furnace, contains a solid content in a range in which a solid phase fraction of the molten slag is lower than or equal to 35 vol%, to thereby coat a furnace wall of the gasification furnace with a part of the molten slag.
Advantageous Effects of Invention [0011]
In the coal gasification method according to the invention, while reducing a temperature of a molten slag, a viscosity of the molten slag grad ually increases along with an increase in the solid phase fraction. Therefore, the slag with which a furnace wall is coated can be maintained in an appropriate amount.
Brief Description of Drawings [0012] FIG. 1 is a schematic configuration diagram illustrating a coal gasifier which is applied to the invention. FIG 2 is a graph illustrating a relationship between a temperature of a molten slag and a liquid phase fraction of the molten slag. FIG. 3 is a graph illustrating a relationship between the solid phase fraction and the relative viscosity of a molten slag.
Description of Embodiments [0013]
An embodiment of the invention will be described referring to FIGS. 1 to 3. FIG. 1 illustrates a general coal gasifier 100 according to this embodiment.
In the coal gasifier 100, pulverized coal (coal) is supplied into a gasification furnace 3 under increased pressure at a high temperature through lines (not illustrated); and a gasifying agent (for example, oxygen-containing gas) is blown into a burner 2 through lines 1. As a result, in the gasification furnace 3, the pulverized coal is oxidized by the gasifying agent; and gas G produced in the gasification furnace 3 is discharged from an upper opening 3A.
In addition, a reformer (not illustrated) is provided above the upper opening 3A of the gasification furnace 3. In this reformer, gas, oil, and char are produced by putting hydrogen into gasified gas produced in the gasification furnace 3; and hydrothermally decomposing the gasified gas.
[0014]
In addition, as a by-product of the partial oxidation in the gasification furnace 3, a slag S is produced from ash in coal. As a result, a coating of the slag S is formed on an inner wall of the gasification furnace 3; and a part of the slag S is discharged as a molten slag SI.
In this case, 100 vol% of the molten slag SI, which forms the coating of the slag S, may be in the liquid phase, or a part thereof may be in the solid phase and a liquid phase fraction may be red uced. Hereinafter, not only a case where 100 vol% of the molten slag SI is in the liquid phase but a case where a part of the molten slag SI is in the solid phase and a liquid phase fraction is lower than or equal to 100% will also be described as “molten slag SI”.
[0015]
In the gasification furnace 3, the molten slag SI, formed inside the gasification furnace 3, is discharged and dropped through a slag tap hole 3B which is provided in the bottom of the gasification furnace 3. The molten slag S1 which is discharged from the slag tap hole 3B is cooled while being dropped in a slag cooling portion 4 and then is stored in a slag granulation portion 5.
In this slag granulation portion 5, slag cooling water 6 is stored. The molten slag S1 is granulated and rapidly cooled to obtain a granulated slag S2, and the granulated slag S2 is discharged from a slag discharge hole 5A in the bottom of the slag granulation portion 5.
[0016] A connection pipe 8 having a valve 7 is connected to the slag discharge hole 5 A which is positioned in the bottom of the slag granulation portion 5. The granulated slag S2 which is discharged from the slag granulation portion 5 is fed into a slag lock hopper 10 through the connection pipe 8.
In this slag lock hopper 10, for example, the granulated slag S2 is stored for a given time to precipitate the slag. After the given time from the start of the storage of the granulated slag S2, the granulated slag S2 is discharged outside the system through a connection pipe 12 having a valve 11.
[0017]
Next, a slag composition capable of maintaining the slag S, with which a furnace wall is coated, in an appropriate amount will be described. 100 vol% of raw coal which is used in the coal gasifier 100 is in the liquid phase based on a melting temperature (indicated by a ternary component phase diagram) which is determined from the composition thereof. However, from the viewpoint of maintaining an appropriate amount of the slag S with which a furnace wall is coated, it is not necessary that the liquid phase fraction be 100 vol%.
As seen from the graph of FIG. 2 illustrating the relationship between a temperature of the molten slag SI and the liquid phase fraction of the molten slag SI, both of “coal A” represented by “O” and “Δ” and “coal B” (having a different type from that of coal A) represented by and “0” have a liquid phase fraction of 100 vol% by increasing the temperature of the molten slag SI, irrespective of the type of coal. “Coal A” described above refers to Adaro coal, and “coal B” described above refers to Tanito Harum coal.
[0018]
In FIG. 2, when the liquid phase fraction of the molten slag SI is higher than or equal to 65 vol% (the solid phase fraction is lower than or equal to 35 vol%), the relationship between the temperature and the liquid phase fraction gradually changes.
On the other hand, when the liquid phase fraction is lower than 65 vol% (the solid phase fraction is higher than 35 vol%), the relationship between the temperature and the liquid phase fraction rapidly changes, the molten slag is rapidly solidified with a small decrease in temperature, and the coal gasification operation is difficult to perform.
[0019] FIG. 3 is a diagram illustrating a relationship between the solid phase fraction of the molten slag SI and the relative viscosity represented by the Mori-Ototake equation. As seen from FIG. 3, when the solid phase fraction of the molten slag SI increases, the relative viscosity of the slag increases. As illustrated in the graph of FIG. 3, when the solid phase fraction of the molten slag SI is greater than 35 vol%, the relative viscosity is greater than 4 (4 times the original viscosity); and the fluidity rapidly deteriorates. Although depending on the composition, an intrinsic viscosity of the molten slag SI with a liquid phase fraction of 100 vol% is, for example, 1.68 Pa s to 22.7 Pa s at 1450°C and is 1.15 Pa-s to 13.1 Pa-sat 1500°C.
Based on the above results, by maintaining the liquid phase fraction of the molten slag SI in the range of 65 vol% or higher (the solid phase fraction in the range of 35 vol% or lower) in which the relationship between the temperature and the liquid phase fraction gradually changes, the slag S with which a furnace wall is coated is maintained in an appropriate amount and thus, the coal gasification operation can be satisfactorily performed.
Furthermore, in order to further satisfactorily perform the coal gasification operation, in the range of 65 vol% or higher, it is more preferable that the liquid phase fraction of the molten slag SI be in a range of 80 vol% or higher (the solid phase fraction be in a range of 20 vol% or lower) in which changes in viscosity are small.
Furthermore, it is still more preferable that the solid phase fraction be in a range of 15 vol% or lower.
[0020]
The solid phase fraction of the molten slag SI can be controlled by, for example, controlling an internal temperature of the gasification furnace 3.
That is, the composition of the molten slag SI depends on components of coal which is put into the gasification furnace 3. Accordingly, a correlation between a temperature of the molten slag SI, which is produced when coal including predetermined components is put into the gasification furnace 3, and a liquid phase fraction or a solid phase fraction of the molten slag S1 can be obtained in advance as illustrated in the graph of FIG. 2 by, for example, a verification test. Based on this correlation, by regulating the internal temperature of the gasification furnace 3 in a range in which, for example, the solid phase fraction of the molten slag SI is lower than or equal to 35 vol% (for example, in the case of coal A represented by “Δ” in FIG. 2, in a range of approximately 1240°C or higher), the solid phase fraction of the molten slag SI can be controlled.
[0021]
In addition, the solid phase fraction of the molten slag SI in the gasification furnace 3 can be calculated using a well-known method. For example, the solid phase fraction of the molten slag SI can be calculated by the slag composition (ash composition) of the molten slag SI; and software which can create a phase equilibrium diagram based on estimation of the free energy of formation of the liquid phase; and thermodynamic data of a compound.
[0022]
As described above in detail, in the coal gasification method according to the embodiment of the invention, the internal temperature of the gasification furnace 3 is regulated such that the molten slag SI, which is formed in the gasification furnace 3, contains a solid content in a range in which the solid phase fraction of the molten slag S1 is lower than or equal to 35 vol%, preferably, lower than or equal to 20 vol%. As a result, the viscosity of the molten slag SI gradually increases along with an increase in solid phase fraction. Accordingly, the slag S with which a furnace wall is coated can be maintained in an appropriate amount.
[0023]
In the above-described embodiment, the internal temperature of the gasification furnace 3 is regulated such that the molten slag SI, which is formed in the gasification furnace 3, contains a solid content in the range in which the solid phase fraction of the molten slag SI is lower than or equal to 35 vol%. However, in addition to the regulation of the internal temperature of the gasification fiimace 3, in order to suppress the ratio of fibrous slag to be produced, components of raw coal may also be regulated so as to increase the basicity of the slag S.
[0024]
In addition, in the above-described embodiment, a furnace in which two chambers including the gasification furnace 3 and the reformer are provided in two stages is used. However, the invention is not limited thereto. For example, in a coal gasifier including one gasification furnace in which gasified gas is produced; and the gasified gas is hydrothermally decomposed, the internal temperature of the gasification furnace may be regulated such that the solid phase traction of the molten slag SI, which is formed in the gasification furnace, is lower than or equal to 35 vol%.
[0025]
Hereinbefore, the embodiment of the invention has been described referring to the drawings. However, specific configurations of the invention are not limited to this embodiment and include design changes and the like in a range not departing from the concepts of the invention
Industrial Applicability [0026]
The present invention relates to a coal gasification method of a coal gasifier including a gasification furnace in which coal is partially oxidized to be gasified.
In the coal gasification method according to the invention, while reducing a temperature of a molten slag, a viscosity of the molten slag gradually increases along with an increase in solid phase fraction. Accordingly, a slag with which a furnace wall is coated can be maintained in an appropriate amount.
Reference Signs List [0027] 3 gasification furnace 100 coal gasifier S slag
Claims (4)
1. A coal gasification method of a coal gasifier including a gasification furnace in which coal is partially oxidized to be gasified, the method comprising: obtaining a correlation in advance between a temperature of a molten slag, which is produced when coal including predetermined components is put into the gasification furnace, and a liquid phase fraction or a solid phase fraction of the molten slag; and regulating an internal temperature of the gasification furnace such that a molten slag, which is formed in the gasification furnace, contains a solid content in a range in which a solid phase fraction of the molten slag is lower than or equal to 35 vol%, to thereby coat a furnace wall of the gasification furnace with a part of the molten slag.
2. The coal gasification method according to Claim 1, wherein the internal temperature is regulated such that the solid phase fraction of the molten slag is lower than or equal to 20 vol%.
3. The coal gasification method according to Claim 1, wherein the internal temperature is regulated such that the solid phase fraction of the molten slag is lower than or equal to 15 vol%.
4. The coal gasification method according to any one of Claims 1 to 3, wherein components of coal which is put into the gasification furnace are regulated so a to increase a basicity of a molten slag with which a furnace wall of the gasification furnace is coated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011056945A JP5674517B2 (en) | 2011-03-15 | 2011-03-15 | Coal gasification method |
| JP2011-056945 | 2011-03-15 | ||
| PCT/JP2012/055932 WO2012124590A1 (en) | 2011-03-15 | 2012-03-08 | Coal gasification method |
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| Publication Number | Publication Date |
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| AU2012227466A1 AU2012227466A1 (en) | 2013-10-31 |
| AU2012227466B2 true AU2012227466B2 (en) | 2016-06-16 |
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| AU2012227466A Active AU2012227466B2 (en) | 2011-03-15 | 2012-03-08 | Coal gasification method |
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| JP (1) | JP5674517B2 (en) |
| CN (1) | CN103429714B (en) |
| AU (1) | AU2012227466B2 (en) |
| WO (1) | WO2012124590A1 (en) |
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| JP6380145B2 (en) * | 2015-02-06 | 2018-08-29 | 新日鐵住金株式会社 | Slag product material and manufacturing method thereof |
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| JPS59206487A (en) * | 1983-05-11 | 1984-11-22 | Hitachi Ltd | Gasifier for coal |
| JPS59232173A (en) * | 1983-06-01 | 1984-12-26 | コンバツシヨン・エンヂニアリング・インコ−ポレ−テツド | Solid fuel gasifying device |
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| KR100323961B1 (en) * | 1993-11-12 | 2002-07-03 | 오노 알버어스 | A process for the gasification of a petroleum coke feedstock |
| US5545238A (en) * | 1994-12-29 | 1996-08-13 | Texaco Inc. | Method of monitoring slag removal during controlled oxidation of a partial oxidation reactor |
| JPH09111256A (en) * | 1995-10-18 | 1997-04-28 | Sekitan Riyou Sogo Center | Device for gasifying coal |
| CN101392191B (en) * | 2008-10-15 | 2011-11-23 | 合肥工业大学 | Two stage type dry coal powder entrained flow gasifier |
| CN101885989B (en) * | 2010-07-16 | 2013-02-13 | 浙江大学 | Coal gasification device capable of controlling continuous coal gasification |
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2011
- 2011-03-15 JP JP2011056945A patent/JP5674517B2/en active Active
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2012
- 2012-03-08 AU AU2012227466A patent/AU2012227466B2/en active Active
- 2012-03-08 CN CN201280013016.5A patent/CN103429714B/en active Active
- 2012-03-08 WO PCT/JP2012/055932 patent/WO2012124590A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59206487A (en) * | 1983-05-11 | 1984-11-22 | Hitachi Ltd | Gasifier for coal |
| JPS59232173A (en) * | 1983-06-01 | 1984-12-26 | コンバツシヨン・エンヂニアリング・インコ−ポレ−テツド | Solid fuel gasifying device |
| JPS60166434A (en) * | 1983-12-29 | 1985-08-29 | Babcock Hitachi Kk | Gasifying device for slag of coal |
| JPH0311256A (en) * | 1989-06-08 | 1991-01-18 | Daikin Ind Ltd | Multi-type air conditioner |
| JPH0361260A (en) * | 1989-07-27 | 1991-03-18 | Canon Inc | Decurl mechanism and recording device using decurl mechanism |
| JPH10306285A (en) * | 1997-05-07 | 1998-11-17 | Babcock Hitachi Kk | Oven floor structure of coal-gasifying oven |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103429714B (en) | 2015-04-22 |
| JP5674517B2 (en) | 2015-02-25 |
| WO2012124590A1 (en) | 2012-09-20 |
| JP2012193247A (en) | 2012-10-11 |
| CN103429714A (en) | 2013-12-04 |
| AU2012227466A1 (en) | 2013-10-31 |
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