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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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oil
coal
water
fuel
slurry
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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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Abstract

一种油基煤浆燃料及制备工艺,采用油、水、煤组成的油基三元浆体燃料,其含量分别为:油占10~40%,水占10~30%,煤占40%~60%,乳化剂和分散剂各占0.5~3%(重量百分比);其制备工艺:将原煤破碎,经湿磨超细加工、过滤,然后加入到油水乳化体系中(即:油和分散剂搅拌均匀,再加入乳化剂和水搅拌乳化的体系),经高速搅拌乳化成浆。其浆体燃料流动性和稳定性好,可以节省大量燃料油;其灰分低,热值高,达5000~8000kcal/kg,可以广泛用于代替工业锅炉、工业窑炉以及发电厂低负荷运行时的燃烧用油。An oil-based coal slurry fuel and its preparation process, using oil-based ternary slurry fuel composed of oil, water and coal, the contents of which are: 10-40% for oil, 10-30% for water, and 40% for coal ~60%, emulsifier and dispersant each account for 0.5~3% (weight percentage); its preparation process: raw coal is crushed, wet milled and ultrafine processed, filtered, and then added to the oil-water emulsion system (ie: oil and dispersant Stir the agent evenly, then add the emulsifier and water to stir and emulsify the system), and emulsify into a slurry by high-speed stirring. Its slurry fuel has good fluidity and stability, and can save a lot of fuel oil; its ash content is low, and its calorific value is high, reaching 5000-8000kcal/kg, which can be widely used to replace industrial boilers, industrial kilns and power plants during low-load operation of burning oil.

Description

油基煤浆燃料及制备工艺Oil-based coal slurry fuel and its preparation technology

本发明涉及油基煤浆燃料及制备工艺,即用油、水、煤组成的油基三元浆体燃料及制备工艺。The invention relates to an oil-based coal slurry fuel and a preparation process, that is, an oil-based ternary slurry fuel composed of oil, water and coal and a preparation process.

当今社会的两大热点问题—能源与环保,就我国而言,以煤为主的能源格局在相当时期内难以改变,未来能源环境问题突出,发展洁净煤技术是现实的选择,煤浆技术是洁净煤技术中的一项重要内容。在过去的20多年中,油煤浆和水煤浆燃料用于燃油锅炉的代油燃料引起了人们的普遍关注,因为它们是一种煤基代油流体燃料,可用在工业锅炉、电站锅炉、工业炉窖上代油或代气燃烧,并且对减少环境污染也起了一定的作用。但是由于油煤浆节油不多,而且粘度高、价格贵,因而很快被水煤浆所代替,水煤浆在节油安全运输方面有很大优越性,在国内外已解决了大规模生产工艺,但水煤浆在制浆煤种的选择方面要求较高,其燃点较高、热值较低,仅适用于高挥发分高的烟煤,另外水煤浆对管路及喷嘴的要求也较高,改造费用昂贵。Two hot issues in today's society - energy and environmental protection. As far as our country is concerned, the energy pattern dominated by coal will be difficult to change in a certain period of time. The future energy and environmental problems will be prominent. The development of clean coal technology is a realistic choice. Coal slurry technology is a An important content in clean coal technology. In the past 20 years, oil-coal slurry and water-coal slurry fuels have attracted widespread attention as oil-substituting fuels for oil-fired boilers, because they are a coal-based oil-substituting fluid fuel that can be used in industrial boilers, power plant boilers, Industrial furnaces burn instead of oil or gas, and also play a certain role in reducing environmental pollution. However, because oil-coal slurry is not much fuel-efficient, and has high viscosity and high price, it is quickly replaced by coal-water slurry. Coal-water slurry has great advantages in fuel-saving and safe transportation. The production process, but the coal water slurry has high requirements in the selection of coal for pulping, its high ignition point and low calorific value, it is only suitable for bituminous coal with high volatile content, and the requirements for pipelines and nozzles of coal water slurry It is also relatively high, and the transformation cost is expensive.

本发明的目的是提供一种燃点较低、热值较高,节油,改造费用较低,用于代替工业锅炉、工业窑炉以及发电厂低负荷运行的油基煤浆燃料及制备工艺。The object of the present invention is to provide an oil-based coal slurry fuel and a preparation process for replacing industrial boilers, industrial kilns and low-load operation of power plants with low ignition point, high calorific value, fuel saving and low transformation cost.

本发明油基煤浆燃料,将可燃油、水、煤按比例加入乳化剂、分散剂均匀混合成浆体,其含量分别为:油占10~40%,水占10~30%,煤占40%~60%,乳化剂和分散剂各占0.5~3%(重量百分比)。所用的乳化剂采用Span-85、Span80系列非离子型表面活性剂,分散剂为磺酸盐类、烷基酚聚氧乙烯醚类和油酸类,分散剂为非离子型表面活性剂和阴离子型表面活性剂的混合体;可燃油可以是汽油、柴油、重油、渣油或原油。For the oil-based coal slurry fuel of the present invention, combustible oil, water, and coal are added in proportion to an emulsifier and a dispersant to uniformly mix them into a slurry, the contents of which are respectively: 10% to 40% of oil, 10% to 30% of water, and 10% to 30% of coal. 40%-60%, the emulsifier and the dispersant each account for 0.5-3% (percentage by weight). The emulsifiers used are Span-85 and Span80 series non-ionic surfactants, the dispersants are sulfonates, alkylphenol polyoxyethylene ethers and oleic acids, and the dispersants are non-ionic surfactants and anionic A mixture of surfactants; combustible fuel can be gasoline, diesel, heavy oil, residual oil or crude oil.

本发明油基煤浆燃料的制备工艺:将原煤破碎,经湿磨超细加工、过滤,然后加入到油水乳化体系中(即:油和分散剂搅拌均匀,再加入乳化剂和水搅拌乳化的体系),经高速搅拌乳化成浆。The preparation process of the oil-based coal slurry fuel of the present invention: the raw coal is crushed, wet-milled and ultra-fine processed, filtered, and then added to the oil-water emulsification system (that is, the oil and the dispersant are stirred evenly, and then the emulsifier and water are added to stir and emulsify) system), emulsified into a slurry by high-speed stirring.

本发明油基煤浆燃料及制备工艺,采用油、水、煤组成的油基三元浆体燃料及制备工艺,该浆体燃料流动性和稳定性好,可以节省大量燃料油,其着火点低于水煤浆;该浆体燃料粒度细,灰分低,因而单位体积热值较高:5000~8000kcal/kg,可以广泛用于代替工业锅炉、工业窑炉以及发电厂低负荷运行时的燃烧用油,其经济效益和社会效益显著,具有广泛的实用性。The oil-based coal slurry fuel and the preparation process of the present invention adopt the oil-based ternary slurry fuel composed of oil, water and coal and the preparation process. The slurry fuel has good fluidity and stability, can save a large amount of fuel oil, and has a low ignition point Coal-water slurry; the slurry fuel has a fine particle size and low ash content, so the calorific value per unit volume is high: 5000-8000kcal/kg, and can be widely used to replace industrial boilers, industrial kilns and combustion in low-load operation of power plants oil, its economic and social benefits are remarkable, and it has a wide range of practicability.

下面结合实施例对本发明作进一步描述:The present invention will be further described below in conjunction with embodiment:

本发明油基煤浆燃料,由可燃油、水、煤按比例加入乳化剂、分散剂均匀混合成浆体,其中乳化剂采用Span-85、Span80系列非离子型表面活性剂,分散剂为磺酸盐类、烷基酚聚氧乙烯醚类和油酸类。分散剂为非离子型表面活性剂和阴离子型表面活性剂的混合体,可燃油可以是汽油、柴油、重油、渣油或原油。The oil-based coal slurry fuel of the present invention is uniformly mixed with combustible oil, water, and coal by adding an emulsifier and a dispersant in proportion to form a slurry, wherein the emulsifier adopts Span-85 and Span80 series non-ionic surfactants, and the dispersant is sulphur. salts, alkylphenol polyoxyethylene ethers and oleic acid. The dispersant is a mixture of nonionic surfactant and anionic surfactant, and the combustible fuel can be gasoline, diesel, heavy oil, residual oil or crude oil.

其制备工艺:将原煤破碎,经湿磨超细加工、过滤,然后加入到油水乳化体系中(即:油和分散剂搅拌均匀,再加入乳化剂和水搅拌乳化的体系),经高速搅拌乳化成浆。Its preparation process: the raw coal is crushed, wet-milled and ultra-finely processed, filtered, and then added to the oil-water emulsification system (that is, the oil and dispersant are stirred evenly, and then the emulsifier and water are added to stir and emulsify the system), and emulsified by high-speed stirring Slurry.

实施例1:用油300克(30%),加入乳化剂16.1克,加水180克(18%),高速搅拌乳化,再加入分散剂3.9克(乳化剂和分散剂用量2%),超细加工后的煤粉(粒度<20μm)500g(50%),充分搅拌混合,再高速搅拌乳化成浆10分钟,即制得稳定的油基煤浆燃料,切变速度为100秒时,粘度为960mPa..S。Embodiment 1: use 300 grams (30%) of oil, add 16.1 grams of emulsifiers, add 180 grams (18%) of water, emulsify with high-speed stirring, then add 3.9 grams of dispersants (2% of emulsifier and dispersant consumption), superfine Processed pulverized coal (particle size<20 μm) 500g (50%), fully stirred and mixed, and then emulsified into a slurry with high-speed stirring for 10 minutes, and a stable oil-based coal slurry fuel was obtained. When the shear rate was 100 seconds, the viscosity was 960mPa..S.

实施例2:用油200克(20%),加入乳化剂8克,加水290克(29%),高速搅拌乳化,再加入分散剂2克(乳化剂和分散剂用量1%),超细加工后的煤粉(粒度<20μm)500g(50%),充分搅拌混合,再高速搅拌乳化成浆10分钟,即制得稳定的油基煤浆燃料,切变速度为100秒时,粘度为780mPa..S。Embodiment 2: use 200 grams (20%) of oil, add 8 grams of emulsifiers, add 290 grams (29%) of water, emulsify with high-speed stirring, then add 2 grams of dispersants (1% of emulsifier and dispersant consumption), superfine Processed pulverized coal (particle size<20 μm) 500g (50%), fully stirred and mixed, and then emulsified into a slurry with high-speed stirring for 10 minutes, and a stable oil-based coal slurry fuel was obtained. When the shear rate was 100 seconds, the viscosity was 780mPa..S.

实施例3:用油350克(35%)加热至70-80℃,加入乳化剂17克,加水130克(13%),高速搅拌均匀,再加入分散剂3克(乳化剂和分散剂用量2%),加入经超细加工的煤粉(粒度<20μm)500克(50%),充分搅拌混合,再高速搅拌乳化成浆8分钟,即制得油基煤浆燃料,切变速度为100秒时,粘度为1000mPa..S。Embodiment 3: heat to 70-80 ℃ with 350 grams (35%) of oil, add 17 grams of emulsifiers, add 130 grams (13%) of water, stir at a high speed, then add 3 grams of dispersants (emulsifier and dispersant consumption 2%), add 500 grams (50%) of coal powder (particle size<20 μm) through superfine processing, fully stir and mix, then high-speed stirring emulsifies into slurry for 8 minutes, promptly makes oil-based coal slurry fuel, and the shear rate is At 100 seconds, the viscosity is 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)

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Cited By (8)

* 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
CN119144364A (en) * 2024-11-04 2024-12-17 上海海之擎能源发展有限公司 Biomass coal water slurry and preparation method thereof

Cited By (11)

* 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
CN119144364A (en) * 2024-11-04 2024-12-17 上海海之擎能源发展有限公司 Biomass coal water slurry and preparation method thereof

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