CN1092231C - Low-grade coal modified refinery coke water slurry composition and use thereof - Google Patents
Low-grade coal modified refinery coke water slurry composition and use thereof Download PDFInfo
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- CN1092231C CN1092231C CN99107794A CN99107794A CN1092231C CN 1092231 C CN1092231 C CN 1092231C CN 99107794 A CN99107794 A CN 99107794A CN 99107794 A CN99107794 A CN 99107794A CN 1092231 C CN1092231 C CN 1092231C
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Abstract
The present invention provides a low-grade coal-modified petroleum coke-water slurry composition and application thereof. Preparing the composition does not need a special process and equipment. Powdered coal is mixed in petroleum coke powder by using the visible complementarity of petroleum coke and coal on the physical property and the chemical property, particularly the visible complementarity of low-grade coal, which improves the performance of aqueous slurry of the petroleum coke and increases the stability of the slurry composition. The composition is a good fuel with high combustion heat quantity and low sulphur content and ash content. Simultaneously, the composition is a chemical raw material for producing effective; hydrogen gas and carbon monoxide gas at high yield.
Description
Refinery coke is because its carbon content is higher, the fuel value that water content and ash content are very low and high, and the raw materials for production that add CO (carbon monoxide converter) gas as the hydrogen of power fuel and chemical fertilizer industry attract people's attention.But, no matter act as a fuel or industrial chemicals waits further research, exploitation because its reactive behavior is low.
Fine powder is pulverized, ground into to refinery coke, with the water mixed pulp be one of feasible approach, existing United States Patent (USP) report (US P 5 478 365).But because refinery coke has very strong hydrophobicity, slurry viscosity is less, and stability and slurry performance are also poor, and simultaneously, the cost of additive therefor is too high, thereby actual application value is limited.
The objective of the invention is, in view of the foregoing and China have bulk petroleum Jiao to be accumulated on the place of refinery, the approach that can widely apply refinery coke is found in expectation, being used with the form of slurry composition is one of important use approach.
In research process of the present invention, studied the performance of coal and refinery coke emphatically, find coal particularly grizzle with refinery coke very significantly complementarity is arranged on physics and chemical property.For this reason, being expected at adding grizzle slurrying in the refinery coke, is a kind of feasible approach, for a road is opened up in the common development and use of refinery coke and grizzle.That is to say, in refinery coke, add grizzle, make it to form the high slurry composition of solids concentration to change the slurry performance of refinery coke, thereby, make refinery coke become the resource that can utilize in a large number, simultaneously, opened up the new way that grizzle utilizes.
In the present invention, refinery coke is worn into 60 order to the 200 purpose powder that sieve.60 purpose meal mix by its weight ratio successively with 200 purpose fine powders at 1.31: 1, make the powder that median size is 71.6 μ m, and 140 purpose petroleum coke powder median sizes are the powder of 32.19 μ m, are B to call this petroleum coke powder in the following text.With grizzle, for example, the Henan Yima coal grinds into the powder that median size is 45 μ m, the particle of 90wt%≤be referred to as A-Y below the 100 μ m in addition; The Shanxi weathered coal grinds into the powder that median size is 36.8 μ m, and 90% particle≤101.4 μ m below is referred to as A-F.Above granularity data is all measured with the U.S. LS-230 of Coulter company particle-size analyzer.About the corresponding data of refinery coke and coal sees Table 1, table 2.The technical analysis and the ultimate analysis of three kinds of coals of table 1 and refinery coke
Test basis China GB212 214 476 15460 standards.The median size and the BET specific surface area of three kinds of coals of table 2 and refinery coke
BET SA data are to measure on the U.S. ASAP-2010 of MICROMETRICS company type instrument.Refinery coke water slurry body composition with the grizzle modification of the present invention comprises:
| Air dried basis (air dry) | Dry ash-free basis (dry ash free) | |||||||
| The huge port refinery coke | The Henan Yima coal | The Shanxi weathered coal | The Shaanxi shenfu coal | The huge port refinery coke | The Henan Yima coal | The Shanxi weathered coal | The Shaanxi shenfu coal | |
| Divide bleed % (Moisture) | 0.575 | 8.60 | 10.16 | 4.82 | ||||
| Ash content % (Ash) | 0.17 | 14.59 | 14.62 | 5.14 | ||||
| Volatile matter % (Volatile Matter) | 30.42 | 32.89 | 30.62 | 39.60 | 43.73 | 34.01 | ||
| Fixed carbon % (Fixed Carbon) | 46.39 | 42.33 | 59.42 | 60.40 | 56.27 | 65.99 | ||
| Gross calorific value (Gross Calorific Value) Kcal/Kg | 8510 | 5330 | 3890 | 6860 | ||||
| Net calorific value (Net Calorific Value) Kcal/Kg | 8340 | 5070 | 3660 | 6600 | ||||
| Carbon % (Carbon) | 90.91 | 57.43 | 50.82 | 73.04 | 91.57 | 74.77 | 67.56 | 81.12 |
| Hydrogen % (Hydrongen) | 3.63 | 3.42 | 1.70 | 4.08 | 3.66 | 4.45 | 2.26 | 4.53 |
| Nitrogen % (Nidrogen) | 2.09 | 0.74 | 1.86 | 0.96 | 2.11 | 0.96 | 2.47 | 1.07 |
| Full sulphur % (Total Sulfur) | 0.280 | 0.91 | 0.56 | 0.18 | 0.282 | 1.18 | 0.74 | 0.20 |
| Oxygen % (Oxygen) | 2.37 | 14.31 | 20.28 | 11.78 | 2.39 | 18.63 | 26.96 | 13.08 |
| Median size (μ m) | BET specific surface area (m 2/g) | |
| Yima coal (A-Y) | 45.00 | 2.3967 |
| Weathered coal (A-F) | 36.83 | 4.7637 |
| Refinery coke-200 order | 29.74 | 3.8166 |
| Refinery coke-140 order | 32.19 | 3.5404 |
| Refinery coke-60 order | 103.5 | 0.7105 |
1. petroleum coke powder: this refinery coke carbon content greater than, equal 90% of its dry ash-free basis weight, median size 32-72 μ m.
2. rudimentary coal dust: such coal contain the fugitive constituent productive rate greater than 33% of its dry ash-free basis weight, oxygen level is greater than 10% of its dry ash-free basis weight, median size 36-45 μ m, its consumption are the 10-100% of petroleum coke powder weight, preferable consumption is 15-45%.
3. additive: can select the tensio-active agent of anionic for use,, comprise as Sulfonates and phosphoric acid ester: Sulfonates, be selected from Sodium dodecylbenzene sulfonate or sodium polystyrene sulfonate, perhaps phosphoric acid ester is selected from phosphoric acid C
12-18Alkyl monoester or phosphoric acid C
12-18Alkyl diester; Also can select the tensio-active agent of non-ionic type for use,, or claim that mixture, its consumption are every kilogram of solids butt 2-13 gram as oxyethane and epoxy propane copolymer or the mixture of selecting for use two or three in the above-mentioned various additive to form.
4. water: its consumption is the 45-60% that petroleum coke powder adds rudimentary coal dust gross weight.
Each component of above-mentioned 1-4 is mixed,, promptly get described refinery coke water slurry body composition with the grizzle modification through stirring.Different coals is to the difference that influences of refinery coke slurry performance, and coking coal ratio, additive amount all can be influential to slurry performance and solids concentration.
The mensuration of slurry viscosity number is to measure the flow curve of slurry on the NXS-11 rotational viscosimeter, obtains the apparent viscosity value under the different shear rate.
The measuring method of the solids concentration expressed in percentage by weight of slurry is, a certain amount of slurry was toasted one and a half hours in 105 ℃ of baking ovens, removes its whole moisture content, calculates the actual weight percentage concentration of solids.
Refinery coke water slurry body composition characteristics and effect thereof with the grizzle modification of the present invention:
(1). this slurry composition solids concn height, solids concentration can reach 66-67%.
(2). this slurry composition excellent property, institute's flow measurement varied curve are slurry and are the false plastotype fluid of surrender.Slurry is even like oily, good stability, and slurry is as a form of gel when leaving standstill, and is good flowability after the stirring immediately; Mentioning slurry with splash bar can wire drawing.
(3). this slurry composition general reaction is active high, and the reaction that helps refinery coke transforms.Coal as adding in embodiment 2 is a Yima coal, the weight ratio of itself and refinery coke is 15.1: 49.5, when the solids concentration of this slurry composition reaches 64.6wt%, according to calculating, with compare its effective gas productive rate with the pure shenfu coal-water slurry of solids concentration high by 13%, and thermal value has improved 11%, and oxygen-consumption only appreciates 6%.In other words, the alternative grade of slurry composition of the present invention is than shenfu coal high-grade coal more, the data of consulting table 4 and table 5.
(4). the granularity scope of application at petroleum coke powder in this slurry composition and coal dust end is big, and any can both be suitable for than alternative particle diameter is big or little in the two, is the favourable condition of utilizing refinery coke and grizzle in a large number, consults table 3 embodiment.
The purposes of the refinery coke water slurry body composition with the grizzle modification of the present invention:
(1). the sulphur content of this slurry composition and ash content are all lower, are a kind of good environment-friendly fuels.
(2). this slurry composition is the industrial chemicals that a kind of production available gas hydrogen of high yield adds carbon monoxide, particularly produces the industrial chemicals of chemical fertilizer.
In order to be illustrated more clearly in the present invention, the embodiment that is listed below, but it does not have any restriction to the present invention.Table 3
| Embodiment | Solids concn (wt%) | Coking coal proportioning wt% | Median size (μ m) | B provides BET surface-area | Viscosity (cp) | Stability | ||
| B | A-Y | B | A-Y | |||||
| 1 | 67.0 | 67.0 | - | * | - | 100.0% | ～200 | Flowing during preparation just, it is all good to reach wire drawing, leaves standstill slightly sedimentation promptly to occur, and 30 minutes with interior precipitation fully. |
| 2 | 64.6 | 49.5 | 15.1 | 71.57 | 45.00 | 73.83% | 1860 (D=10s -1) 1170 (D=100s -1) | Flow and wire drawing all good, it is about 3% to leave standstill after 1 day behind bleed＜2%, 4 day bleed, does not have precipitation, stirs heavily that flow in the back and wire drawing is all good |
| 3 | 66.6 | 51.1 | 15.5 | 71.57 | 45.00 | 73.83% | 2680 (D=10s -1) 1280 (D=100s -1) | Flow and wire drawing all good, it is few to leave standstill 5 days bleeds, does not have precipitation, the apparent gel that is stirs heavily that flow in the back and wire drawing is all good |
| 4 | 67.0 | 51.4 | 15.6 | 71.57 | 45.00 | 73.83% | 1150 (D=10s -1) 850 (D=100s -1) | Flow and wire drawing all good, it is about 1% to leave standstill 5 hours bleeds, soft precipitation occurs, bleed keeps 2% in 4 days, but the bottom is more and more harder. |
| 5 | 65.9 | 34.5 | 31.4 | 32.19 | 45.00 | 61.9% | 2170 (D=10s -1) 1390 (D=100s -1) | Flowing, it is all good to reach wire drawing, and leaving standstill after 2 days does not have bleed, does not have precipitation, and the apparent gel that is can flow after heavily stirring, but wire drawing is inferior slightly. |
The additive of embodiment 1-4: be sodium polystyrene sulfonate, consumption is a 2-5 gram/kilogram solid butt, perhaps select the mixture of the multipolymer of sodium polystyrene sulfonate and oxyethane and propylene oxide for use, consumption is respectively 2-3.5 gram/kilogram solid butt and 0.3-1.5 gram/kilogram solid butt.
The additive of embodiment 5: be sodium polystyrene sulfonate, consumption is a 3-8 gram/kilogram solid butt, perhaps select the mixture of the multipolymer of sodium polystyrene sulfonate and oxyethane and propylene oxide for use, consumption is respectively 3-6 gram/kilogram solid butt and 0.3-2 gram/kilogram solid butt.Table 3 (continuing)
| Embodiment | Solids concn (wt%) | Coking coal proportioning wt% | Median size (μ m) | B provides BET surface-area | Viscosity (cp) | Stability | ||
| B | A-F | B | A-F | |||||
| 6 | 65.3 | 55.3 | 10.0 | 32.19 | 36.83 | 80.3% | 1870 (D=10s -1) 1430 (D=100s -1) | Flowing, it is all good to reach wire drawing, leaves standstill bleed in 4 days＜1%, does not have precipitation, the apparent gel that is, and flowing after heavily stirring, it is all good to reach wire drawing |
| 7 | 66.3 | 56.2 | 10.1 | 32.19 | 36.83 | 84.8% | 3350 (D=10s -1) 2520 (D=100s -1) | Flowing, it is all good to reach wire drawing, and leaving standstill in 4 days does not have bleed, does not have precipitation, the apparent gel that is, and wire drawing is not so good after heavily stirring. |
| 8 | 63.7 | 33.5 | 30.2 | 32.19 | 36.83 | 45.2% | 1560 (D=10s -1) 1200 (D=100s -1) | Flow and wire drawing all good, it is few to leave standstill after 4 days bleed, does not have precipitation, stirs heavily that flow in the back and wire drawing is all good. |
| 9 | 62.5 | 53.4 | 9.1 | 32.19 | 36.83 | 81.4% | 1780 (D=10s -1) 810 (D=100s -1) | Flowing, it is all good to reach wire drawing, leave standstill 1 day bleed＜1%, do not have precipitation, bleed about 4% in 3 days, soft precipitation, flowing after heavily stirring, it is all good to reach wire drawing. |
| 10 | 62.0 | 32.6 | 29.4 | 32.19 | 36.83 | 45.2% | 2350 (D=10s -1) 1320 (D=100s -1) | Flow and wire drawing all good, it is about 2% to leave standstill after 4 days bleed, soft precipitation, it is not so good heavily to stir the back wire drawing. |
*The experiment of multiple particle diameter fails to obtain high density, well behaved refinery coke-water slurry.
The additive of embodiment 6-10: be sodium polystyrene sulfonate, consumption is a 2-9 gram/kilogram solid butt, perhaps select the mixture of the multipolymer of sodium polystyrene sulfonate and oxyethane and propylene oxide for use, consumption is respectively 2-7.5 gram/kilogram solid butt and 0.3-1.5 gram/kilogram solid butt.The gasification computation schemes of the different burnt coal water slurry prescriptions of table 4
Butt in the table (%) is meant the gas composition after the water vapour component is disregarded in gasification in the exit gas.Table 3
Additive is a sodium polystyrene sulfonate in the table 3, consumption is a 3-6 gram/kilogram solid butt, perhaps select the mixture of the multipolymer of sodium polystyrene sulfonate and oxyethane, propylene oxide for use, consumption is respectively 3-5 gram/kilogram solid butt and 0.3-1 gram/kilogram solid butt.
| Numbering | Project | Solids concentration wt% | Gasification outlet dry gas amount Nm 3/ t (solids) | H 2Butt (%) | CO butt (%) | H 2+CO (％) | Effective gas (H 2+CO) Nm 3/ t (solids) | O 2(98％)Nm 3/ t (solids) |
| 1 | Refinery coke | 64 | 2574.52 | 33.4382 | 51.8715 | 85.3097 | 2196 | 777 |
| 2 | Shenfu coal | 64 | 2139.98 | 37.9336 | 40.7755 | 78.7091 | 1684 | 667 |
| 3 | Yima coal | 64 | 1601.66 | 35.4745 | 33.8677 | 69.3422 | 1111 | 539 |
| 4 | Shanxi weathering matchmaker | 64 | 1189.53 | 29.0082 | 25.6904 | 54.6986 | 651 | 447 |
| 5 | Refinery coke+Yima coal | 64 | 1942.02 | 35.2929 | 40.4084 | 75.7013 | 1470 | 616 |
| 6 | Refinery coke+weathered coal | 61.8 | 1970.60 | 33.3866 | 42.6189 | 76.0055 | 1498 | 619 |
| 7 | Refinery coke+shenfu coal | 60 | 2248.98 | 36.6644 | 44.6248 | 81.2892 | 1828 | 686 |
| Embodiment | Solids concn (wt%) | Coal tar proportioning wt% | Median size (μ m) | The BET surface-area that provides of B | Viscosity (cp) | Stability | ||
| A-Y | B | A-Y | B | |||||
| 1 | 60.2 | 60.2 | - | 45.00 | - | - | 1560 (D=10s -1) 1000 (D=100s -1) | Flowing, it is all good to reach wire drawing, leaves standstill 4 days bleed rate＜2%, no hard-caked sediment, the apparent gel that is. |
| 2 | 63.7 | 41.1 | 22.6 | 45.00 | 32.19 | 43.4% | 1960 (D=10s -1) 1390 (D=100s -1) | Flow and wire drawing better, it is few to leave standstill after 4 days bleed, soft precipitation is arranged at the bottom, the apparent gel that is. |
| 3 | 63.9 | 41.3 | 22.6 | 45.00 | 103.5 | 14.0% | 1820 (D=10s -1) 1250 (D=100s -1) | Flow and wire drawing better, it is few to leave standstill after 4 days bleed, soft precipitation is arranged at the bottom, the apparent gel that is. |
| 4 | 64.0 | 42.3 | 21.7 | 45.00 | 71.84 | 30.7% | 2050 (D=10s -1) 1170 (D=100s -1) | Flowing, it is better to reach wire drawing, and leaving standstill after 3 days does not have bleed, no hard-caked sediment, the apparent gel that is. |
| 5 | 65.9 | 31.4 | 34.5 | 45.00 | 32.19 | 61.9% | 2170 (D=10s -1) 1390 (D=100s -1) | Flow and wire drawing better, leaving standstill does not have bleed, does not have precipitation after 2 days, the apparent gel that is can flow after heavily stirring, but wire drawing is inferior slightly. |
Claims (6)
1. a refinery coke water slurry body composition is characterized in that, described slurry composition be in refinery coke, add grizzle make the refinery coke modification refinery coke water slurry body composition, this slurry composition comprises:
1). petroleum coke powder: its carbon content greater than, equal 90% of its dry ash-free basis weight, its median size is 32-72 μ m;
2). rudimentary coal dust: it contains the fugitive constituent productive rate greater than 33% of its dry ash-free basis weight, and oxygen level is greater than 10% of its dry ash-free basis weight, and median size 36-45 μ m, consumption are the 10-100% of petroleum coke powder weight.
3). additive: be selected from sodium polystyrene sulfonate, phosphoric acid C
12-18Alkyl monoester or phosphoric acid C
12-18Alkyl diester; Consumption is a 2-10 gram/kilogram solids butt; The mixture of perhaps selecting for use above-mentioned any additive and oxyethane and epoxy propane copolymer to form, consumption is respectively: 2-7.5 gram/kilogram solids butt and 0.3-2 gram/kilogram solids butt;
4). water: its consumption is the 40-60% that petroleum coke powder adds rudimentary coal dust gross weight.
2. according to the described slurry composition of claim 1, it is characterized in that the consumption of rudimentary coal dust is the 15-45% of petroleum coke powder weight in the described slurry composition.
3. according to the described slurry composition of claim 1, it is characterized in that, contain in the described slurry composition
1). petroleum coke powder: its carbon content is the 90-92% of its dry ash-free basis weight, and median size is 71.57 μ m;
2). rudimentary coal dust: its median size is 45 μ m, and oxygen level is the 14.5-19% of its dry ash-free basis weight, and the weight ratio of consumption and refinery coke is: refinery coke: grizzle=49.5-51.4: 15.1-15.6;
3). additive: be sodium polystyrene sulfonate, consumption is a 2-5 gram/kilogram solids butt, perhaps select the mixture of sodium polystyrene sulfonate and oxyethane and epoxy propane copolymer for use, consumption is respectively 2-3.5 gram/kilogram solids butt and 0.3-1.5 gram/kilogram solids butt;
4). water: its consumption is the 45-55% that petroleum coke powder adds rudimentary coal dust gross weight.
4. according to the described slurry composition of claim 1, it is characterized in that, contain in the described slurry composition
1). petroleum coke powder: its carbon content is the 90-92% of its dry ash-free basis weight, and median size is 32.19 μ m;
2). rudimentary coal dust: its median size is 45 μ m, and oxygen level is the 14.5-19% of its dry ash-free basis weight, and the weight ratio of consumption and refinery coke is: refinery coke: grizzle=34.5: 31.4;
3). additive: for polystyrolsulfon acid is received, consumption is a 3-8 gram/kilogram solids butt, perhaps select the mixture of sodium polystyrene sulfonate and oxyethane and epoxy propane copolymer for use, consumption is respectively 3-6 gram/kilogram solids butt and 0.3-2 gram/kilogram solids butt;
4). water: its consumption is the 45-60% that petroleum coke powder adds rudimentary coal dust gross weight.
5. according to the described slurry composition of claim 1, it is characterized in that, contain in the described slurry composition
1). petroleum coke powder: its carbon content is the 90-92% of its dry ash-free basis weight, and median size is 32-31 μ m;
2). rudimentary coal dust: its median size is 36-37 μ m, and oxygen level is the 19-27% of its dry ash-free basis weight, and the weight ratio of consumption and refinery coke is: refinery coke: grizzle=32-57: 9-31;
3). additive: for polystyrolsulfon acid is received, consumption is a 2-9 gram/kilogram solids butt, perhaps select the mixture of sodium polystyrene sulfonate and oxyethane and epoxy propane copolymer for use, consumption is respectively 2-7.5 gram/kilogram solids butt and 0.3-1.5 gram/kilogram solids butt;
4). water: its consumption is the 45-56% that petroleum coke powder adds rudimentary coal dust gross weight.
6. the purposes of the described slurry composition of claim 1 is characterized in that, described slurry composition is as environment-friendly fuel with as producing the industrial chemicals that available gas hydrogen adds carbon monoxide.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062584A (en) * | 2015-07-13 | 2015-11-18 | 新疆天智辰业化工有限公司 | Preparation method for preparing coal gasified coal water slurry from blended coke waste |
| CN105062585A (en) * | 2015-07-13 | 2015-11-18 | 新疆天智辰业化工有限公司 | Coal water slurry for coal gasification |
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| US8343243B2 (en) * | 2009-03-31 | 2013-01-01 | General Electric Company | Method and apparatus for blending lignite and coke slurries |
| CN102181314A (en) * | 2011-04-08 | 2011-09-14 | 东南大学 | Waste water coal coke slurry and preparation method thereof |
| CN103965981B (en) | 2013-01-31 | 2016-05-25 | 通用电气公司 | The apparatus and method of preparation water-coal-slurry |
| CN106811250B (en) * | 2015-11-27 | 2019-04-05 | 中国石油化工股份有限公司 | A kind of water coal coke slurry and preparation method thereof |
| CN106433822B (en) * | 2016-03-31 | 2019-02-22 | 中国石油化工股份有限公司 | A kind of water-coal-slurry and its pulping process of gasification of coal blending petrochemical industry waste |
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| CN87108310A (en) * | 1986-12-26 | 1988-08-10 | 宇部兴产株式会社 | Solid fuel-water slurry composition and method of making same |
| CN1007733B (en) * | 1985-11-12 | 1990-04-25 | 卡波盖尔公司 | Coal water slurry composition based on low rank carbonaceous solids |
| CN1081201A (en) * | 1992-06-24 | 1994-01-26 | 三井矿山株式会社 | Adopt the coal water slurry and the method for making thereof of improvement inferior grade coal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1007733B (en) * | 1985-11-12 | 1990-04-25 | 卡波盖尔公司 | Coal water slurry composition based on low rank carbonaceous solids |
| CN87108310A (en) * | 1986-12-26 | 1988-08-10 | 宇部兴产株式会社 | Solid fuel-water slurry composition and method of making same |
| CN1081201A (en) * | 1992-06-24 | 1994-01-26 | 三井矿山株式会社 | Adopt the coal water slurry and the method for making thereof of improvement inferior grade coal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105062584A (en) * | 2015-07-13 | 2015-11-18 | 新疆天智辰业化工有限公司 | Preparation method for preparing coal gasified coal water slurry from blended coke waste |
| CN105062585A (en) * | 2015-07-13 | 2015-11-18 | 新疆天智辰业化工有限公司 | Coal water slurry for coal gasification |
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| CN1275611A (en) | 2000-12-06 |
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