CN102732341A - Coal water slurry and preparation method thereof - Google Patents
Coal water slurry and preparation method thereof Download PDFInfo
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- CN102732341A CN102732341A CN2011100857209A CN201110085720A CN102732341A CN 102732341 A CN102732341 A CN 102732341A CN 2011100857209 A CN2011100857209 A CN 2011100857209A CN 201110085720 A CN201110085720 A CN 201110085720A CN 102732341 A CN102732341 A CN 102732341A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
- C10L1/326—Coal-water suspensions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/32—Liquid carbonaceous fuels consisting of coal-oil suspensions or aqueous emulsions or oil emulsions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G1/00—Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
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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
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Abstract
The invention relates to coal water slurry and a preparation method thereof. The coal water slurry comprises small coal particles and large coal particles. The weight of the small coal particles is 20 to 90% of the weight of coal of the coal water slurry. An average particle size of the small coal particles is less than 26 microns. The weight of the large coal particles is 10 to 80% of the weight of the coal of the coal water slurry. An average particle size of the large coal particles is in a range of 50 to 200 microns.
Description
Technical field
The present invention relates to a kind of coal water slurry (Coal Water Slurry; CWS) and preparation method thereof; (Particle Size Distribution PSD) has the method for coal water slurry of the size-grade distribution of this coal with preparation to relate in particular to the size-grade distribution of coal in a kind of coal water slurry.
Background technology
In the coal gasification field, adopt two kinds of methods that coal is input in the vapourizing furnace usually and gasify.A kind of method is to utilize the nitrogen pneumatic transport coal dust of pressurization, and it is sprayed into vapourizing furnace.Another kind method is to prepare the slurry of coal and water earlier, i.e. " coal water slurry " then is transported to this coal water slurry in the vapourizing furnace and gasifies.Because the coal water slurry method is more simple and reliable than the gasification process that adopts the dry coal powder, the charging of being more convenient for, and can be used for higher vapor pressure, thereby it has obtained widespread use.
Usually, have higher coal concentration in the coal water slurry and can bring higher gasification efficiency and the lower coal and the consumption of oxygen.Therefore, in the preparation process, the coal water slurry that contains the higher concentration coal is prepared in normal expectation, thereby can coal water slurry be gasified with the mode of less expensive.
Certain methods has been attempted improving the concentration of coal in the coal water slurry.For example, the size-grade distribution of coal can be modified to improve the concentration of coal in the coal water slurry.Yet, in more existing application, do not make the concentration of coal reach expected value through the size-grade distribution of adjusting coal, and, along with the rising of coal concentration in the coal water slurry, possibly cause coal water slurry to produce the viscosity of not expecting.
So, need provide a kind of new coal water slurry and preparation method thereof to improve the concentration of coal in the coal water slurry.
Summary of the invention
One embodiment of the present of invention provide a kind of coal water slurry.This coal water slurry comprises small-particle coal and large coal particles.This small-particle coal is in the scope of from 20% to 90% weight percent of coal weight in the coal water slurry, and its median size is less than 26 microns.This large coal particles is in the scope of from 10% to 80% weight percent of coal weight in the coal water slurry, and its median size from 50 microns in 200 micrometer ranges.
Another embodiment of the present invention provides a kind of method for preparing coal water slurry.This method for preparing coal water slurry comprises grinds the preparation small-particle coal, and this small-particle coal is in the scope of from 20% to 90% weight percent of coal weight in the coal water slurry, and its median size is less than 26 microns; Grind the preparation large coal particles, this large coal particles is in the scope of from 10% to 80% weight percent of coal weight in the coal water slurry, and its median size from 50 microns in 200 micrometer ranges; And mixing said small-particle coal, large coal particles and water.
Description of drawings
Describe for embodiments of the invention in conjunction with the drawings, can understand the present invention better, in the accompanying drawings:
Fig. 1 prepares the synoptic diagram of an embodiment of size-grade distribution of the coal of coal water slurry for the present invention;
The test contrast synoptic diagram of coal concentration that Fig. 2 does not add small-particle coal for adding in the coal water slurry of the present invention reaches and viscosity (Viscosity); And
Fig. 3 is respectively the schematic flow sheet of the different embodiment of method for producing water coal slurry of the present invention to Fig. 6.
Embodiment
The synoptic diagram of an embodiment of the size-grade distribution of the coal for preparing coal water slurry for the present invention shown in Figure 1.In embodiments of the present invention, " coal water slurry " can refer to the mixture of coal, water and the additive of some amount, and it can produce and be used for generating, heating, supports processing and make employed energy.In recent years, the use of coal water slurry has become a kind of substituting selection of using traditional fuel oil and coal.
In certain application, coal water slurry can comprise from 55% to 70% weight percent (WeightPercentage, coal particle wt%), the water from 30wt% to 45wt% and be less than the additive of 1wt%.Embodiments of the invention are not limited to can be used for the coal or the additive of any particular type in the coal water slurry.In non-limiting example, comprised sulfonated alkyl naphathalene of additive (Alkylnaphthelene Sulfonate) and polyoxyalkylene alkyl (Polyoxyalkylene Alkyl Ether).
Usually, in application, the concentration that improves coal in the coal water slurry can promote gasification efficiency, reduces the consumption of coal and oxygen.Higher coal concentration can through with coal grinding to suitable size-grade distribution, simultaneously, select suitable additive, thereby and suitably coal, water and additive mixing are prepared have suitable concn, the coal water slurry of viscosity, stability and quality.In an embodiment of the present invention, can select the size-grade distribution of coal in the coal water slurry, thus less coal particle can be dispersed in bigger coal particle between increase the concentration of coal in the coal water slurry.
As shown in Figure 1, the size-grade distribution that is used to prepare the coal 10 of coal water slurry can comprise less coal particle 11 and bigger coal particle 12.Wherein, the weight of small-particle coal 11 can be the 20wt% of coal 10 weight to 90wt% scope interior (comprising 20wt% and 90wt%), and its median size (Mean Particle size) is less than 26 microns.The 10wt% that the weight of large coal particles 12 can be coal 10 weight (comprising 10wt% and 80wt%) in the scope of 80wt%, and its median size is in 50 microns to 200 microns the scope (comprising 50 microns and 200 microns).In some applications, the weight fraction other places of small-particle coal 11 and large coal particles 12 in the 30wt% of coal 10 weight to the 90wt% scope and 10wt% in the 70wt% scope.
In other were used, the 10wt% that the 40wt% that the weight of small-particle coal 11 and large coal particles 12 can be in coal 10 weight respectively reaches to the 90wt% scope was in the 60wt% scope.In certain application, the 50wt% that the weight of small-particle coal 11 and large coal particles 12 can be in coal 10 weight respectively to 75wt% scope and 25wt% in the 50wt% scope.
In addition, in some instances, the median size of small-particle coal 11 can less than 25 microns, less than 20 microns or less than 15 microns.In other examples, the median size of small-particle coal 11 can be less than 10 microns or less than 5 microns.In certain application, the median size of small-particle coal 11 can be in 5 microns to 15 microns scope.In other examples, the median size of small-particle coal 11 can be in from 10 microns to 15 microns or in 5 microns to 10 microns scope.The median size of large coal particles 12 can be in from 50 microns to 70 microns, from 70 microns to 140 microns, from 90 microns to 140 microns, from 100 microns to 140 microns or in 140 microns to 200 microns scope.
Like this, after mixing, small-particle coal can be dispersed between large coal particles, thereby can improve the coal concentration in the coal water slurry of producing.In certain embodiments; Coal can comprise high-order coal (High Rank Coal); Like bituminous coal (Bituminous) and hard coal (Anthracite) and low-rank coal (Low Rank Coal), like in sub-bituminous coal (Sub-bituminous coal) and the brown coal (Lignite) one or more.In one example, the size-grade distribution of coal can comprise the mixture of small-particle low-rank coal and macrobead high-order coal or small-particle high-order coal and macrobead low-rank coal.In a non-limiting example, these two kinds of size particles coals include low-rank coal, like sub-bituminous coal and brown coal.Because the cost of low-rank coal is lower, using low-rank coal to produce the coal water slurry with higher concentration coal in some instances is escapable cost.
Table one is depicted as and is used for the experimental embodiment that the coal particle size of production coal water slurry distributes among the present invention.In this example, coal comprises low-rank coal.Can find out that from table one coal comprises the small-particle coal of 50wt% and the large coal particles of 50wt%.The size of small-particle coal is less than 26 microns; The size of large coal particles is in from 26 microns to 2500 microns.In an embodiment of the present invention, the median size of small-particle coal is less than 26 microns; Based on the distribution of weight percent and particle size, the median size of large coal particles is in from 50 microns to 200 microns.
Table one coal particle size distributes
Shown in Figure 2 is the test contrast synoptic diagram that adds and do not add the coal concentration and the viscosity (Viscosity) of small-particle coal in the coal water slurry of the present invention.As shown in Figure 2, be respectively shown in the line 13-14 and do not use and the dependency of coal concentration and its viscosity in the coal water slurry when using small-particle coal.
Visible from the line 13, at point 15, when promptly beginning the production coal water slurry, the coal concentration in the coal water slurry is lower than 46%.Along with the increase of coal weight, at point 16 places, the concentration of coal can reach about 50wt%.At this moment, viscosity of coal-water slurry is lower than 600cp (Centipoise, viscosity unit).Yet, do not using small-particle coal to prepare in the process of coal water slurry, at point 16 places, the mobile variation of coal water slurry, like this, it is disadvantageous as far as the coal concentration in the further raising coal water slurry.
On online 14, this experiment can with line 13 under the similar experiment condition, when beginning, at point 17 places, because small-particle coal mixes with the macrobead coal facies, the coal concentration in the coal water slurry can reach about 54wt%.Along with the increase that mixes coal weight, at point 18 places, coal concentration can reach more than the 56wt% in the coal water slurry.The viscosity here surpasses 1400cp.Then, in coal water slurry, add certain quantity of additive to reduce viscosity of coal-water slurry to about 1300cp, as shown in point 19, the viscosity of this moment is fit to the flowability of coal water slurry.
Like this, the contrast of line 13-14 as shown in Figure 2, the coal water slurry that contains small-particle coal and large coal particles mixture has higher coal concentration and good mobility than the coal water slurry that does not contain the small-particle coal mixture.
Fig. 3 is to the schematic flow sheet that is respectively the different embodiment of method for producing water coal slurry of the present invention shown in Figure 6.As shown in Figure 3, in the preparation process, according to the ratio of predetermined small-particle coal and large coal particles, the original coal 20,21 of some amount is incorporated into respectively in rough grinding device 22 and the fine grainding device 23 mills.
Although shown in Fig. 3 is a rough grinding device 22 and a fine grainding device 23, in some applications, can adopt one or more rough grinding devices 22 and one or more fine grainding devices 23.In some instances, the particle size of original coal 20,21 can be less than 3 millimeters.Although shown in Fig. 3 is two original coal 20,21, in embodiments of the present invention, also can adopt one or more original coal supply source (not shown)s that one or more original coal 20,21 are provided.
In the embodiment shown in fig. 3, rough grinding device 22 can be used for original coal 20 is carried out wet-milling (WetMilling), and fine grainding device 23 can be used for original coal 21 dry grind (Dry Milling).In non-limiting example, rough grinding device 22 can comprise ball mill (Ball Milling) with fine grainding device 23, and the size of original coal 20,21 can be different, and can be not less than 3 millimeters.In some applications, one or two can comprise in low-rank coal and the high-order coal one or both in the original coal 20,21, and original coal 20,21 maybe be identical or different.In a non-limiting example, original coal 20,21 comprises identical low-rank coal.
Like this; According to the small-particle coal of confirming and the size-grade distribution of large coal particles; After original coal 20,21 was incorporated into rough grinding device 22 and fine grainding device 23 respectively, fine grainding device 23 was milled original coal 21 with the exsiccant small-particle coal dust of production median size less than 26 microns.Simultaneously, along with original coal 20 is introduced in the rough grinding device 22, true quantitative water 24 also is introduced in the fine grainding device 23 to produce thick coal water slurry with additive 25.This thick coal water slurry comprise median size from 50 microns to the large coal particles 200 micrometer ranges.
Subsequently; Be introduced in the mixing vessel 26 from the exsiccant small-particle coal of fine grainding device 23 with from the thick coal water slurry of rough grinding device 22 and mix; Have the coal water slurry that contains the higher concentration coal with generation and be used for next step processing, such as, be incorporated in the vapourizing furnace 27 with generate energy.In some instances, in mixing process, can adopt the whisking appliance (not shown) in mixing vessel 26, the exsiccant small-particle coal to be mixed with thick coal water slurry mutually.Simultaneously, control exsiccant small-particle coal enters into the rate of feed of mixing vessel 26, thereby guarantees that water in the thick coal water slurry fully contacts with small-particle coal and little coal particle can be dispersed between large coal particles.
In certain application; As shown in Figure 3; The coal water slurry that contains higher coal concentration be introduced into handle in the vapourizing furnace 27 before; Filtration unit 28 can be set accept and filter from the coal water slurry of mixing vessel 26 removing impurity wherein, as be mixed in stone in the coal water slurry etc., this helps the follow-up processing to coal water slurry in vapourizing furnace.In other embodiments, also filtration unit 28 can be set.
Shown in Figure 4 is another embodiment schematic flow sheet of preparation coal water slurry of the present invention.The difference of embodiment shown in Figure 4 and embodiment shown in Figure 3 is that employed mixing vessel 26 does not use among Fig. 3 in the embodiment of Fig. 4.In the embodiment shown in fig. 4, when original coal 2 is milled in rough grinding device 22, be introduced in the rough grinding device 22 from the exsiccant small-particle coal of fine grainding device 23, thereby mix mutually with large coal particles, water and additive.In certain application, after mixing vessel also can be arranged on the rough grinding device.Before coal water slurry is sent to vapourizing furnace 27, also can use filtration unit 28 selectively.
Shown in Figure 5 is another embodiment schematic flow sheet of preparation coal water slurry of the present invention.As shown in Figure 5; In fine grainding device 23, prepare in the process of small-particle coal; When original coal 21 was milled in fine grainding device 23, a certain amount of water 29 also was added in the fine grainding device 23 with the alternative additive 30 that adds, thereby mixes with the small-particle coal facies that produce.In certain application, one or more water sources of supply and one or more additive source of supply can be set to provide respectively water 24,29 and additive 25,30. Water 24,29 and additive 25,30 can be identical or different respectively.In some applications, additive 25 and/or 30 can only join in one of them milling apparatus, or is added in the mixing vessel 26.
In the embodiment shown in fig. 6, all original coal 31 are added into and carry out wet-milling in the rough grinding device 22.In mill processes, be introduced in the mixing vessel 26, as large coal particles from a certain amount of rough coal 32 of rough grinding device 22; Get in the fine grainding device 23 from the rough coal of another part amount of rough grinding device 22 and to carry out further wet-milling, to produce small-particle coal.Then, small-particle coal with mix mutually in mixing vessel 26 from the large coal particles of rough grinding device 22, have the coal water slurry of higher coal concentration with generation.In certain application, a certain amount of water and additive can be added in milling device or the mixing vessel.
In an embodiment of the present invention; Weight percent is in from 20% to 90% scope; And median size less than 25 microns small-particle powder 11 and weight percent in from 10% to 80% scope; And median size has the coal water slurry of higher coal concentration mixing from 50 microns macrobead coal facies in 200 micrometer ranges with generation.In some applications, low-rank coal can be used to produce the coal with expectation size-grade distribution, thereby produces the coal water slurry with higher coal concentration, its escapable cost.In addition, in the process of preparation coal water slurry, can adopt wet-milling and/or dry grinding to increase the handiness of system's production coal water slurry.
Though describe the present invention in conjunction with the specific embodiments, those skilled in the art will appreciate that and to make many modifications and modification the present invention.Therefore, recognize that the intention of claims is to cover all such modifications and the modification in true spirit of the present invention and the scope.
Claims (17)
1. coal water slurry comprises:
Small-particle coal, it is in the scope of from 20% to 90% weight percent of coal weight in the coal water slurry, and its median size is less than 26 microns; And
Large coal particles, it is in the scope of from 10% to 80% weight percent of coal weight in the coal water slurry, and its median size from 50 microns in 200 micrometer ranges.
2. coal water slurry as claimed in claim 1, wherein small-particle coal and large coal particles include low-rank coal.
3. coal water slurry as claimed in claim 1, wherein small-particle coal is in the scope of from 40% to 90% weight percent of coal weight in the coal water slurry, and large coal particles is in the scope of from 10% to 60% weight percent of coal weight in the coal water slurry.
4. coal water slurry as claimed in claim 1, wherein small-particle coal is in the scope of from 50% to 75% weight percent of coal weight in the coal water slurry, and large coal particles is in the scope of from 25% to 50% weight percent of coal weight in the coal water slurry.
5. coal water slurry as claimed in claim 1, wherein small-particle coal is in the scope of from 30% to 50% weight percent of coal weight in the coal water slurry, and large coal particles is in the scope of from 50% to 70% weight percent of coal weight in the coal water slurry.
6. coal water slurry as claimed in claim 1, wherein the median size of large coal particles from 50 microns in 140 micrometer ranges.
7. coal water slurry as claimed in claim 1, wherein the median size of large coal particles from 100 microns in 140 micrometer ranges.
8. coal water slurry as claimed in claim 1, wherein the median size of large coal particles from 140 microns in 200 micrometer ranges.
9. coal water slurry as claimed in claim 1, wherein the median size of small-particle coal is less than 25 microns.
10. coal water slurry as claimed in claim 1, wherein the median size of small-particle coal is less than 15 microns.
11. coal water slurry as claimed in claim 1, wherein the median size of small-particle coal is less than 10 microns.
12. a method for preparing coal water slurry comprises:
Grind the preparation small-particle coal, this small-particle coal is in the scope of from 20% to 90% weight percent of coal weight in the coal water slurry, and its median size is less than 26 microns;
Grind the preparation large coal particles, this large coal particles is in the scope of from 10% to 80% weight percent of coal weight in the coal water slurry, and its median size from 50 microns in 200 micrometer ranges; And
Mix said small-particle coal, large coal particles and water.
13. method as claimed in claim 12, wherein said grinding comprise that use rough grinding device prepares said large coal particles and use fine grainding device prepares said small-particle coal, the median size of said small-particle coal is less than 25 microns.
14. method as claimed in claim 13, wherein said use rough grinding device grinding comprises wet-milling, and said use fine grainding device grinding comprises dry grinding.
15. comprising, method as claimed in claim 14, wherein said mixing import said rough grinding device to said small-particle coal.
16. method as claimed in claim 13, wherein said use rough grinding device grinding and said fine grainding device grinding comprise wet-milling.
17. method as claimed in claim 16 comprises that further an input part gets into mixing vessel and another part rough coal from the rough coal of said rough grinding device and gets into said fine grainding device and be transfused to the into said small-particle coal of said mixing vessel with generation.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100857209A CN102732341A (en) | 2011-04-07 | 2011-04-07 | Coal water slurry and preparation method thereof |
| US13/437,039 US20120255221A1 (en) | 2011-04-07 | 2012-04-02 | Coal water slurry and methods for making the coal water slurry |
| IN1038DE2012 IN2012DE01038A (en) | 2011-04-07 | 2012-04-03 | |
| EP12163250A EP2508589A1 (en) | 2011-04-07 | 2012-04-04 | Coal Water Slurry and Methods for Making the Coal Water Slurry |
| CA2773735A CA2773735A1 (en) | 2011-04-07 | 2012-04-05 | Coal water slurry and methods for making the coal water slurry |
| KR1020120035882A KR20120115473A (en) | 2011-04-07 | 2012-04-06 | Coal water slurry and methods for making the coal water slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100857209A CN102732341A (en) | 2011-04-07 | 2011-04-07 | Coal water slurry and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102732341A true CN102732341A (en) | 2012-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2011100857209A Pending CN102732341A (en) | 2011-04-07 | 2011-04-07 | Coal water slurry and preparation method thereof |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20120255221A1 (en) |
| EP (1) | EP2508589A1 (en) |
| KR (1) | KR20120115473A (en) |
| CN (1) | CN102732341A (en) |
| CA (1) | CA2773735A1 (en) |
| IN (1) | IN2012DE01038A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103937568A (en) * | 2014-04-17 | 2014-07-23 | 中国五环工程有限公司 | Method for preparing high-concentration water-coal-slurry through coal with high oxygen content |
| CN104031702A (en) * | 2014-06-19 | 2014-09-10 | 无锡市恒烽水煤浆有限公司 | High-concentration mixed water-coal-slurry |
| CN104927947A (en) * | 2014-03-19 | 2015-09-23 | 通用电气公司 | Method, apparatus, and corresponding system for processing coal water slurry |
| CN107502395A (en) * | 2017-09-07 | 2017-12-22 | 江苏天脉化工有限公司 | A kind of preparation method of water-coal-slurry |
| CN114133966A (en) * | 2021-10-29 | 2022-03-04 | 江苏地质矿产设计研究院(中国煤炭地质总局检测中心) | Method for preparing low-rank coal-water slurry with good slurryability based on particle size distribution model |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103965981B (en) * | 2013-01-31 | 2016-05-25 | 通用电气公司 | The apparatus and method of preparation water-coal-slurry |
| KR101582537B1 (en) | 2014-05-19 | 2016-01-06 | 한국에너지기술연구원 | Coal water slurry and method for controlling viscosity of the same |
| CN107164005B (en) * | 2017-06-22 | 2019-07-23 | 中煤科工清洁能源股份有限公司 | A kind of water-coal-slurry and preparation method thereof |
| CN107267235B (en) * | 2017-06-27 | 2019-09-17 | 中煤科工清洁能源股份有限公司 | A kind of method that more raw materials prepare novel water-coal-slurry product |
| US11286436B2 (en) * | 2019-02-04 | 2022-03-29 | Eastman Chemical Company | Feed location for gasification of plastics and solid fossil fuels |
| CN111534342A (en) * | 2020-04-27 | 2020-08-14 | 深圳瑞科天启科技有限公司 | High-concentration coal water slurry and preparation method and application thereof |
| CN113560012A (en) * | 2021-06-29 | 2021-10-29 | 江苏恒丰能环科技股份有限公司 | Method for changing pulp particle size distribution of rod mill |
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| CN1046179A (en) * | 1989-03-17 | 1990-10-17 | 日挥株式会社 | High-concentration coal-water slurry and preparation method thereof |
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| US4479806A (en) * | 1978-11-02 | 1984-10-30 | Alfred University Research Foundation, Inc. | Stabilized slurry and process for preparing same |
| SE8202879L (en) * | 1982-05-07 | 1983-11-08 | Carbogel Ab | WATER SLUSHING OF A SOLID FUEL AND KITCHEN AND MEANS OF PREPARING THEREOF |
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| US8177867B2 (en) * | 2008-06-30 | 2012-05-15 | Nano Dispersions Technology Inc. | Nano-dispersions of coal in water as the basis of fuel related technologies and methods of making same |
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- 2011-04-07 CN CN2011100857209A patent/CN102732341A/en active Pending
-
2012
- 2012-04-02 US US13/437,039 patent/US20120255221A1/en not_active Abandoned
- 2012-04-03 IN IN1038DE2012 patent/IN2012DE01038A/en unknown
- 2012-04-04 EP EP12163250A patent/EP2508589A1/en not_active Withdrawn
- 2012-04-05 CA CA2773735A patent/CA2773735A1/en not_active Abandoned
- 2012-04-06 KR KR1020120035882A patent/KR20120115473A/en not_active Application Discontinuation
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| CN104927947A (en) * | 2014-03-19 | 2015-09-23 | 通用电气公司 | Method, apparatus, and corresponding system for processing coal water slurry |
| CN103937568A (en) * | 2014-04-17 | 2014-07-23 | 中国五环工程有限公司 | Method for preparing high-concentration water-coal-slurry through coal with high oxygen content |
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| CN104031702B (en) * | 2014-06-19 | 2017-01-04 | 无锡市恒烽水煤浆有限公司 | High concentration mixing water coal slurry |
| CN107502395A (en) * | 2017-09-07 | 2017-12-22 | 江苏天脉化工有限公司 | A kind of preparation method of water-coal-slurry |
| CN107502395B (en) * | 2017-09-07 | 2019-03-08 | 江苏天脉化工有限公司 | A kind of preparation method of water-coal-slurry |
| CN114133966A (en) * | 2021-10-29 | 2022-03-04 | 江苏地质矿产设计研究院(中国煤炭地质总局检测中心) | Method for preparing low-rank coal-water slurry with good slurryability based on particle size distribution model |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120255221A1 (en) | 2012-10-11 |
| CA2773735A1 (en) | 2012-10-07 |
| EP2508589A1 (en) | 2012-10-10 |
| KR20120115473A (en) | 2012-10-18 |
| IN2012DE01038A (en) | 2015-07-24 |
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