CN104293401A - Coal-water slurry blended fuel and preparation method thereof - Google Patents
Coal-water slurry blended fuel and preparation method thereof Download PDFInfo
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- CN104293401A CN104293401A CN201410582461.4A CN201410582461A CN104293401A CN 104293401 A CN104293401 A CN 104293401A CN 201410582461 A CN201410582461 A CN 201410582461A CN 104293401 A CN104293401 A CN 104293401A
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Abstract
A coal-water slurry blended fuel belongs to the field of coal chemical industry. Through the addiction of coal tar, the additive amount of coal powder is reduced, the rheological property of a product is improved, and a combustion nozzle is effectively prevented from coking; according to an addictive dispersant, the purposes that the viscosity of the coal-water slurry can be reduced and the coal-water slurry can be prevented from gathering are achieved through the mutual effect of a hydrophilic/hydrophobic group and a raw material, an electrostatic repulsion effect, a space effect and the like. Through the addiction of coal tar, the additive amount of the coal powder is reduced, the rheological property of the product is improved, and a combustion nozzle is effectively prevented from coking; the combustion efficiency of the coal-water slurry can be effectively improved, and the combustion can be carried out more completely and more sufficiently; as the combustion is sufficient, the coal smoke pollution can be greatly alleviated, and the environmental protection and the energy conservation can be achieved.
Description
Technical field
The present invention relates to a kind of mixing water coal slurry fuel, be specifically related to a kind of coal water slurry propellant combination and preparation method thereof.
Background technology
There is abundant coal resource in China, occupy second place of the world, coal is important fossil oil, power industry, Iron And Steel Industry and heating is mainly used in cash human society, coal depends on the competition with other energy prices as the contribution of main energy sources to future, and it is to the degree of environmental hazard, the environmental influence that Discharged form Coal Combustion gas causes is maximum beyond doubt, but the development of human social economy and ability, still coal must be used so far, even if most economically developed country is also like this, and environmental protect is greatly incited somebody to action in coal oil refining, has broad application prospects.
Coal in China reserves account for 90% of fossil energy total reserves, and oil and natural gas reserves account for 10%, and the consumption of coal accounts for about 72% of energy consumption, therefore says, coal be China the most reliably, the most secure energy.Expert foretells, the mankind will face the change in an energy epoch, following energy be one based on renewable energy sources such as sun power, nuclear energy, biomass energies.But before entering the next energy epoch, energy consumption need through a transition period, and it is a lot of that the standing stock due to coal exceed oil, this transition period should be a mixed type energy structure stage based on coal.But this stage is not the repetition by coal mode of direct burning coal, but the high-level utilization on efficient, clean, high quality is basic.
Take coal as raw material, it is the product that can be used as fuel or substitute the use of existing oil fuel by process change, at present, the most frequently used coal oil refining is exactly Direct liquefaction technology, being process coal being transformed under high temperature, high hydrogen pressure condition liquid fuel oil, in order to obtain higher oil yield rate, improving the utilization ratio of hydrogen, usually, except higher temperature and hydrogen pressure, also need to use the circulating solvent of pre-hydrogenation, expensive catalyzer, many short operation pattern.Cause the problem that once investing of DCL/Direct coal liquefaction is high, production cost is high, process cost is high.
Coal water slurry can effective economic the problems referred to above, and coal water slurry mixes with the coal dust of certain coarseness of grading and the additive of a certain amount of water and minute quantity.Typical coal water slurry by the coal dust of about 70%, the water of about 30% and 1% additive form.It has the same mobility of oil and stability, and pumping, atomization and stable ignition can be adopted to burn; Also can long distance delivery and long-time preservation.
The purposes of coal water slurry is very extensive, it can the pipe transportation, storage as oil deposit, pumping, atomization and stable ignition burning, its calorific value is equivalent to the half of oil fuel, thus can directly substitute the direct fuel in fire coal, fuel oil Industrial Boiler or power station the most; Coal water slurry or desirable gasified raw material, the gasification of generation may be used for Coal Chemical Industry or for combined cycle generation; For special Coal Slurry, can also use as the fuel of internal combustion turbine; Visible, COAL-WATER SLURRY TECHNOLOGY is an important component part of clean coal technology, and development COAL-WATER SLURRY TECHNOLOGY tool is of great significance.
For this reason, we propose a kind of method preparing coal water slurry: be raw material with coal water slurry, add coal tar and suitable additives, are prepared into fluidization fuel slurry.Substantially increase burning of coal efficiency, improve the rheological property of fuel, solid-to-liquid ratio improves, and burner noz(zle) is coking not easily.
technology contents
The invention provides a kind of coal water slurry propellant combination: be raw material with coal water slurry, add coal tar and suitable additives, be prepared into fluidization fuel slurry.Substantially increase burning of coal efficiency, improve the rheological property of fuel, solid-to-liquid ratio improves, and burner noz(zle) is coking not easily.
A kind of coal water slurry propellant combination of the present invention, is made up of the raw material of following weight parts:
Microfine coal 35 ~ 60 parts;
25 ~ 35 parts, coal tar;
10 ~ 20 parts, water;
The short agent 2 ~ 3 parts of combustion;
Dispersion agent 2 ~ 5 parts;
Emulsifying agent 2 ~ 4 parts.
Described combustion is urged agent and is comprised calcium naphthenate and polyvinyl alcohol;
Described dispersion agent comprises polyvinylpyrrolidone, Tristearoylglycerol and oxidized polyethlene wax.
Described emulsifying agent comprises Sodium dodecylbenzene sulfonate, sodium lauryl sulphate and Soxylat A 25-7.
The preparation method of a kind of coal water slurry propellant combination of the present invention is:
(1), the preparation of coal water slurry: the raw coal pulverized is put people's ball mill, crosses 100 ~ 200 mesh sieves, obtain microfine coal.Microfine coal is mixed with water, then adds appropriate combustion and urge agent, stir (500 ~ 800r/min) about 10 ~ 30min with agitator at 60 ~ 80 DEG C after, complete the preparation of coal water slurry.
(2) preparation of oil coal water mixture propellant combination: add V-Pyrol RC, Tristearoylglycerol and oxidized polyethlene wax in the coal water slurry prepared, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate and Soxylat A 25-7 is added in coal tar, then added by coal tar in the coal water slurry prepared, rapid stirring (1500 ~ 2000r/min) 10 ~ 30min makes three-phase propellant combination.Whole preparation process completes under the state of 60 ~ 90 DEG C at constant temperature, ensures that each component is divided and mixes, obtained coal water slurry propellant combination of the present invention.
the invention has the beneficial effects as follows:
1. reducing the addition of coal dust by adding coal tar, improving product rheology energy, can effective placing burning nozzle coking.
2. effectively improve the efficiency of combustion of coal water slurry, burning more cmpletely.Sufficient combustion, greatly reduces soot contamination, environmental protection and energy saving.
3. preparation method's technical process is easy, improves production efficiency, easy to operate.
Embodiment
embodiment 1
A kind of coal water slurry propellant combination of the present invention, is made up of the raw material of following weight parts:
Microfine coal 35 parts;
25 parts, coal tar;
10 parts, water;
Calcium naphthenate 1 part;
Polyvinyl alcohol 1 part;
V-Pyrol RC 1 part;
Tristearoylglycerol 1 part;
With oxidized polyethlene wax 1 part;
Sodium dodecylbenzene sulfonate 1 part;
Sodium lauryl sulphate 1 part;
Soxylat A 25-7 1 part.
Its preparation process is as follows:
(1), the preparation of coal water slurry: the raw coal pulverized is put people's ball mill, crosses 100 mesh sieves, obtain microfine coal.Microfine coal is mixed with water, then adds appropriate combustion and urge agent, stir (500r/min) about 10min with agitator at 60 DEG C after, complete the preparation of coal water slurry.
(2) preparation of oil coal water mixture propellant combination: add V-Pyrol RC, Tristearoylglycerol and oxidized polyethlene wax in the coal water slurry prepared, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate and Soxylat A 25-7 is added in coal tar, then added by coal tar in the coal water slurry prepared, rapid stirring (1500r/min) 10min makes three-phase propellant combination.Whole preparation process completes under the state of 60 DEG C at constant temperature, ensures that each component is divided and mixes, obtained coal water slurry propellant combination of the present invention.
embodiment 2
A kind of coal water slurry propellant combination of the present invention, is made up of the raw material of following weight parts:
Microfine coal 50 parts;
30 parts, coal tar;
15 parts, water;
Calcium naphthenate 2 parts;
Polyvinyl alcohol 1 part;
V-Pyrol RC 2 parts;
Tristearoylglycerol 1 part;
With oxidized polyethlene wax 1 part;
Sodium dodecylbenzene sulfonate 2 parts;
Sodium lauryl sulphate 1 part;
Soxylat A 25-7 1 part.
Its preparation process is as follows:
(1), the preparation of coal water slurry: the raw coal pulverized is put people's ball mill, crosses 150 mesh sieves, obtain microfine coal.Microfine coal is mixed with water, then adds appropriate combustion and urge agent, stir (650r/min) about 20min with agitator at 70 DEG C after, complete the preparation of coal water slurry.
(2) preparation of oil coal water mixture propellant combination: add V-Pyrol RC, Tristearoylglycerol and oxidized polyethlene wax in the coal water slurry prepared, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate and Soxylat A 25-7 is added in coal tar, then added by coal tar in the coal water slurry prepared, rapid stirring (1750r/min) 20min makes three-phase propellant combination.Whole preparation process completes under the state of 75 DEG C at constant temperature, ensures that each component is divided and mixes, obtained coal water slurry propellant combination of the present invention.
embodiment 3
A kind of coal water slurry propellant combination of the present invention, is made up of the raw material of following weight parts:
Microfine coal 60 parts;
35 parts, coal tar;
20 parts, water;
Calcium naphthenate 2 parts;
Polyvinyl alcohol 1 part;
V-Pyrol RC 2 parts;
Tristearoylglycerol 1 part;
With oxidized polyethlene wax 1 part;
Sodium dodecylbenzene sulfonate 2 parts;
Sodium lauryl sulphate 1 part;
Soxylat A 25-7 1 part.
Its preparation process is as follows:
(1), the preparation of coal water slurry: the raw coal pulverized is put people's ball mill, crosses 200 mesh sieves, obtain microfine coal.Microfine coal is mixed with water, then adds appropriate combustion and urge agent, stir (800r/min) about 30min with agitator at 80 DEG C after, complete the preparation of coal water slurry.
(2) preparation of oil coal water mixture propellant combination: add V-Pyrol RC, Tristearoylglycerol and oxidized polyethlene wax in the coal water slurry prepared, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate and Soxylat A 25-7 is added in coal tar, then added by coal tar in the coal water slurry prepared, rapid stirring (2000r/min) 30min makes three-phase propellant combination.Whole preparation process completes under the state of 90 DEG C at constant temperature, ensures that each component is divided and mixes, obtained coal water slurry propellant combination of the present invention.
Claims (8)
1. a coal water slurry propellant combination, is made up of following raw material, and described number is weight part:
Microfine coal 35 ~ 60 parts
25 ~ 35 parts, coal tar
10 ~ 20 parts, water
The short agent 2 ~ 3 parts of combustion
Dispersion agent 2 ~ 5 parts
Emulsifying agent 2 ~ 4 parts.
2. a kind of coal water slurry propellant combination of claim 1, is characterized in that: described combustion is urged agent and comprised calcium naphthenate and polyvinyl alcohol.
3. a kind of coal water slurry propellant combination of claim 1, is characterized in that: described dispersion agent comprises polyvinylpyrrolidone, Tristearoylglycerol and oxidized polyethlene wax.
4. a kind of coal water slurry propellant combination of claim 1, is characterized in that: described emulsifying agent comprises Sodium dodecylbenzene sulfonate, sodium lauryl sulphate and Soxylat A 25-7.
5. coal water slurry propellant combination preparation technology as claimed in claim 1, is characterized in that:
1), the preparation of coal water slurry: the raw coal pulverized is put people's ball mill, crosses 100 ~ 200 mesh sieves, obtain microfine coal; Microfine coal is mixed with water, then adds appropriate combustion and urge agent, after stirring with agitator, complete the preparation of coal water slurry;
2) preparation of oil coal water mixture propellant combination: add V-Pyrol RC, Tristearoylglycerol and oxidized polyethlene wax in the coal water slurry prepared, Sodium dodecylbenzene sulfonate, sodium lauryl sulphate and Soxylat A 25-7 is added in coal tar, then added by coal tar in the coal water slurry prepared, rapid stirring makes three-phase propellant combination and coal water slurry propellant combination of the present invention.
6. coal water slurry propellant combination preparation technology as claimed in claim 5, it is characterized in that: in step 1), microfine coal is mixed with water, add appropriate combustion again and urge agent, at 60 ~ 80 DEG C, stir (500 ~ 800r/min) about 10 ~ 30min with agitator.
7. coal water slurry propellant combination preparation technology as claimed in claim 5, is characterized in that: step 2) in three-phase propellant combination preparation in agitation condition be (1500 ~ 2000r/min) 10 ~ 30min.
8. coal water slurry propellant combination preparation technology as claimed in claim 5, is characterized in that: whole preparation process completes under the state of 60 ~ 90 DEG C at constant temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410582461.4A CN104293401A (en) | 2014-10-28 | 2014-10-28 | Coal-water slurry blended fuel and preparation method thereof |
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| CN201410582461.4A CN104293401A (en) | 2014-10-28 | 2014-10-28 | Coal-water slurry blended fuel and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107312581A (en) * | 2017-08-15 | 2017-11-03 | 国网辽宁省电力有限公司电力科学研究院 | The surface additive and its application process of a kind of biomass coal-water slurry |
| CN108841371A (en) * | 2018-06-27 | 2018-11-20 | 长江大学 | A kind of CBM Fracturing compound coal dust suspending agent and preparation method thereof |
| CN110452747A (en) * | 2019-07-16 | 2019-11-15 | 广西欧神诺陶瓷有限公司 | Water-coal-slurry and preparation method thereof |
| CN110566816A (en) * | 2019-09-25 | 2019-12-13 | 威海翔泽新材料科技有限公司 | preparation method of tar viscosity reducer for reducing viscosity of tar |
| CN112175688A (en) * | 2020-10-22 | 2021-01-05 | 安徽海螺新材料科技有限公司 | Cement clinker calcination fire coal additive and preparation method thereof |
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| CN101691511A (en) * | 2009-10-20 | 2010-04-07 | 济南开发区星火科学技术研究院 | Coal-tar pitch fuel composite |
| CN101747963A (en) * | 2010-01-21 | 2010-06-23 | 肖国雄 | Biomass water-coal-slurry and preparation method thereof |
| CN103627458A (en) * | 2013-12-25 | 2014-03-12 | 济南开发区星火科学技术研究院 | Heavy oil and coal water slurry blended fuel and preparation method thereof |
| CN103666609A (en) * | 2013-12-25 | 2014-03-26 | 济南开发区星火科学技术研究院 | Coal tar and coal water slurry mixed fuel and preparation method thereof |
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| CN1354227A (en) * | 2000-11-20 | 2002-06-19 | 中国科学院理化技术研究所 | Oil base ternary mixed fuel formed from coal, water and oil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107312581A (en) * | 2017-08-15 | 2017-11-03 | 国网辽宁省电力有限公司电力科学研究院 | The surface additive and its application process of a kind of biomass coal-water slurry |
| CN108841371A (en) * | 2018-06-27 | 2018-11-20 | 长江大学 | A kind of CBM Fracturing compound coal dust suspending agent and preparation method thereof |
| CN108841371B (en) * | 2018-06-27 | 2020-07-31 | 长江大学 | Composite pulverized coal suspending agent for coal bed gas fracturing and preparation method thereof |
| CN110452747A (en) * | 2019-07-16 | 2019-11-15 | 广西欧神诺陶瓷有限公司 | Water-coal-slurry and preparation method thereof |
| CN110566816A (en) * | 2019-09-25 | 2019-12-13 | 威海翔泽新材料科技有限公司 | preparation method of tar viscosity reducer for reducing viscosity of tar |
| CN112175688A (en) * | 2020-10-22 | 2021-01-05 | 安徽海螺新材料科技有限公司 | Cement clinker calcination fire coal additive and preparation method thereof |
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