CN1389547A - Oil-based coal slurry fuel and preparation process thereof - Google Patents

Oil-based coal slurry fuel and preparation process thereof Download PDF

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Publication number
CN1389547A
CN1389547A CN 01113675 CN01113675A CN1389547A CN 1389547 A CN1389547 A CN 1389547A CN 01113675 CN01113675 CN 01113675 CN 01113675 A CN01113675 A CN 01113675A CN 1389547 A CN1389547 A CN 1389547A
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China
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oil
coal
fuel
agent
water
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Pending
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CN 01113675
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Chinese (zh)
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朱红
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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Priority to CN 01113675 priority Critical patent/CN1389547A/en
Publication of CN1389547A publication Critical patent/CN1389547A/en
Pending legal-status Critical Current

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Abstract

An oil-base coal slurry fuel is prepared from oil (10-40 wt.%), water (10-30), coal (40-60) and emulsifier and disperser (0.5-3) through breaking raw coal, wet grinding, superfine processing, filtering, adding it to oil-water emulsifying system, and high-speed stirring. The slurry fuel has good fluidity and stability, can save a large amount of fuel oil, has low ash content and high heat value of 5000-8000 kcal/kg, and can be widely used for replacing combustion oil for low-load operation of industrial boilers, industrial kilns and power plants.

Description

Oil-base coal fluid fuel and preparation technology
The present invention relates to oil-base coal fluid fuel and preparation technology, i.e. oil base ternary fuel slurry and the preparation technology who forms with oil, water, coal.
Two big hot issue-energy and environmental protection of current society, with regard to China, quite be difficult to change in period based on the energy general layout of coal, the future source of energy environmental problem is outstanding, developing clean coal technology is the selection of reality, and the coal slurry technology is an important content in the clean coal technology.In in the past more than 20 year, what coal oil mixture and coal water slurry fuel were used for oil-firing boiler has caused people's common concern for oil fuel, because they are a kind of coal-based generation flow of oil fuel, can be used on Industrial Boiler, station boiler, industrial furnace cellar for storing things previous generation's oil or for gas firing, and also play a part certain reducing environmental pollution.But because the coal oil mixture fuel-economizing is few, and viscosity height, price are expensive, thereby replaced very soon by coal water slurry, coal water slurry has very big superiority in fuel-economizing aspect transporting safely, solved large-scale production process at home and abroad, but coal water slurry is being had relatively high expectations aspect the selection of slurrying coal, its burning-point is higher, calorific value is lower, be only applicable to the high bituminous coal of high volatile, coal water slurry is also higher to the requirement of pipeline and nozzle in addition, the improvement expenses costliness.
The purpose of this invention is to provide that a kind of burning-point is lower, calorific value is higher, fuel-economizing, improvement expenses is lower, is used to replace the oil-base coal fluid fuel and the preparation technology of Industrial Boiler, Industrial Stoves and power station underrun.
Oil-base coal fluid fuel of the present invention, but with fuel oil, water, coal add emulsifying agent in proportion, dispersion agent is uniformly mixed into slurry, its content is respectively: oil accounts for 10~40%, and water accounts for 10~30%, coal accounts for 40%~60%, and emulsifying agent and dispersion agent respectively account for 0.5~3% (weight percent).Used emulsifying agent adopts Span-85, Span80 series nonionic surface active agent, and dispersion agent is Sulfonates, alkylphenol polyoxyethylene class and oleic-acid, and dispersion agent is the mixture of nonionic surface active agent and aniorfic surfactant; But fuel oil can be gasoline, diesel oil, heavy oil, residual oil or crude oil.
The preparation technology of oil-base coal fluid fuel of the present invention: with the raw coal fragmentation, through wet-milling super-fine processing, filtration, join then (that is: oil and dispersion agent stir, and add the system of emulsifying agent and water stirring and emulsifying again) in the oil-water emulsion system, through high-speed stirring emulsification pulping.
Oil-base coal fluid fuel of the present invention and preparation technology, the oil base ternary fuel slurry and the preparation technology that adopt oil, water, coal to form, this fuel slurry flowability and good stability can be saved a large amount of oil fuel, and its point of ignition is lower than coal water slurry; This fuel slurry fine size, ash content is low, thereby the unit volume calorific value is higher: 5000~8000kcal/kg can be widely used in the burning oil when replacing Industrial Boiler, Industrial Stoves and power station underrun, its economic benefit and obvious social benefit have practicality widely.
Below in conjunction with embodiment the present invention is further described:
Oil-base coal fluid fuel of the present invention, but by fuel oil, water, coal add emulsifying agent in proportion, dispersion agent is uniformly mixed into slurry, wherein emulsifying agent adopts Span-85, Span80 series nonionic surface active agent, and dispersion agent is Sulfonates, alkylphenol polyoxyethylene class and oleic-acid.Dispersion agent is the mixture of nonionic surface active agent and aniorfic surfactant, but fuel oil can be gasoline, diesel oil, heavy oil, residual oil or crude oil.
Its preparation technology:,, join then (that is: oil and dispersion agent stir, and add the system of emulsifying agent and water stirring and emulsifying again) in the oil-water emulsion system, through high-speed stirring emulsification pulping through wet-milling super-fine processing, filtration with the raw coal fragmentation.
Embodiment 1: with oil 300 grams (30%), add emulsifying agent 16.1 grams, add water 180 grams (18%), high-speed stirring emulsification adds dispersion agent 3.9 grams (emulsifying agent and dispersant dosage 2%) again, coal dust after the super-fine processing (granularity<20 μ m) 500g (50%), fully mix, high-speed stirring emulsification pulping is 10 minutes again, promptly makes stable oil-base coal fluid fuel, when shear velocity was 100 seconds, viscosity was 960mPa..S.
Embodiment 2: with oil 200 grams (20%), add emulsifying agent 8 grams, add water 290 grams (29%), high-speed stirring emulsification adds dispersion agent 2 grams (emulsifying agent and dispersant dosage 1%) again, coal dust after the super-fine processing (granularity<20 μ m) 500g (50%), fully mix, high-speed stirring emulsification pulping is 10 minutes again, promptly makes stable oil-base coal fluid fuel, when shear velocity was 100 seconds, viscosity was 780mPa..S.
Embodiment 3: be heated to 70-80 ℃ with oil 350 grams (35%), add emulsifying agent 17 grams, add water 130 grams (13%), high-speed stirring is even, adds dispersion agent 3 grams (emulsifying agent and dispersant dosage 2%) again, adding is through coal dust (granularity<20 μ m) 500 grams (50%) of super-fine processing, fully mix, high-speed stirring emulsification pulping is 8 minutes again, promptly makes oil-base coal fluid fuel, when shear velocity was 100 seconds, viscosity was 1000mPa..S.

Claims (6)

1. oil-base coal fluid fuel, it is characterized in that: but with fuel oil, water, coal add emulsifying agent in proportion, dispersion agent is uniformly mixed into slurry, its content is respectively: oil accounts for 10~40%, and water accounts for 10~30%, coal accounts for 40%~60%, and emulsifying agent and dispersion agent respectively account for 0.5~3% (weight percent).
2. oil-base coal fluid fuel according to claim 1 is characterized in that: described emulsifying agent adopts Span-g5, Span80 series nonionic surface active agent.
3. oil-base coal fluid fuel according to claim 1 is characterized in that: described dispersion agent is Sulfonates, alkylphenol polyoxyethylene class and oleic-acid.
4. according to claim 1,2 or 3 described oil-base coal fluid fuels, it is characterized in that: described dispersion agent is the mixture of nonionic surface active agent and aniorfic surfactant.
5. oil-base coal fluid fuel according to claim 1 is characterized in that: but described fuel oil can be gasoline, diesel oil, heavy oil, residual oil or crude oil.
6. the preparation technology of oil-base coal fluid fuel, it is characterized in that:,, join then in the oil-water emulsion system that (that is: oil and dispersion agent stir through wet-milling super-fine processing, filtration the raw coal fragmentation, the system that adds emulsifying agent and water stirring and emulsifying again), through high-speed stirring emulsification pulping.
CN 01113675 2001-06-05 2001-06-05 Oil-based coal slurry fuel and preparation process thereof Pending CN1389547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01113675 CN1389547A (en) 2001-06-05 2001-06-05 Oil-based coal slurry fuel and preparation process thereof

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Application Number Priority Date Filing Date Title
CN 01113675 CN1389547A (en) 2001-06-05 2001-06-05 Oil-based coal slurry fuel and preparation process thereof

Publications (1)

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CN1389547A true CN1389547A (en) 2003-01-08

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101597526A (en) * 2008-06-02 2009-12-09 金军 Method, product and the purposes of the liquid fuel in a kind of coal oil-gas reservoir of gathering
CN101270311B (en) * 2007-03-23 2012-09-05 北京国成环网机电设备有限公司 Grinding burning-rate accelerator for coal, preparation method and application 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
CN105018159A (en) * 2015-06-19 2015-11-04 四川华益隆环保科技有限公司 Oil gas engineering oil-containing solid waste resource modification treatment method
CN105925327A (en) * 2016-04-26 2016-09-07 太原理工大学 Coal-based three phase hybrid fuel prepared from waste engine oil
CN107227183A (en) * 2017-07-13 2017-10-03 斯养武 A kind of high heating value water-coal-slurry
US10287522B2 (en) 2013-01-31 2019-05-14 General Electric Company System and method for preparing coal water slurry

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101270311B (en) * 2007-03-23 2012-09-05 北京国成环网机电设备有限公司 Grinding burning-rate accelerator for coal, preparation method and application thereof
CN101597526A (en) * 2008-06-02 2009-12-09 金军 Method, product and the purposes of the liquid fuel in a kind of coal oil-gas reservoir of gathering
CN101597526B (en) * 2008-06-02 2013-03-27 金军 Method for collecting liquid fuel in coal oil-gas reservoir, product and application thereof
US10287522B2 (en) 2013-01-31 2019-05-14 General Electric Company System and method for preparing coal water slurry
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
CN103627458B (en) * 2013-12-25 2016-06-08 济南开发区星火科学技术研究院 A kind of heavy oil water-coal-slurry fuel combination and preparation method thereof
CN105018159A (en) * 2015-06-19 2015-11-04 四川华益隆环保科技有限公司 Oil gas engineering oil-containing solid waste resource modification treatment method
CN105925327A (en) * 2016-04-26 2016-09-07 太原理工大学 Coal-based three phase hybrid fuel prepared from waste engine oil
CN107227183A (en) * 2017-07-13 2017-10-03 斯养武 A kind of high heating value water-coal-slurry
CN107227183B (en) * 2017-07-13 2019-07-09 斯养武 A kind of high heating value water-coal-slurry

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