Polymeric functional additive used in coal combustion and preparation method thereof

A technology of functional additives and polymers, which is applied in the field of polymer functional additives and its preparation, can solve the problems of backward combustion technology, incomplete combustion, and low combustion efficiency, and achieve low cost of use, sufficient coal combustion, and reduced NOx emissions. Effect

Inactive Publication Date: 2011-11-02
铜陵市绿源复合材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to backward combustion technology, incomplete combustion, and low combustion efficiency, low-quality coal with low energy levels is not used or wasted, and energy waste is serious

Method used

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  • Polymeric functional additive used in coal combustion and preparation method thereof
  • Polymeric functional additive used in coal combustion and preparation method thereof
  • Polymeric functional additive used in coal combustion and preparation method thereof

Examples

Experimental program
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Effect test

specific Embodiment 1

[0023] Functional polymer materials used in this example: polyethylene glycol monomethyl ether (EO=4~75): 30g, nonylphenol polyoxyethylene ether (EO=8~10): 10g, fatty alcohol polyoxyethylene Ether (EO=4~23): 10g; dispersion stabilizer: N-β-(aminoethyl)aminopropyltrimethoxysilane: 8 g; put it in the reaction kettle, raise the temperature to 70°C, slowly add the catalyst iso Cobalt octoate: 5g, lanthanum oxide: 5g, react for 3 hours while stirring; after grinding, homogenizing, filtering and separating processes, control the particle size of the emulsion below 0.1 micron, add co-surfactant dioctyl phthalate 17g, 15g p-nitrophenol, stirred to a homogeneous liquid, cooled to obtain a solution that is a polymer functional additive for coal combustion. This functional polymer additive is suitable for coals with a sulfur content of 0.5-1.5%, a volatile fraction of 20-35%, and a calorific value of 4500-5500Kcal / kg. Use a metering pump to spray 600ppm of coal weight on the surface of ...

specific Embodiment ２

[0025] The functional polymer materials used in this example: allyl polyoxyethylene ether (EO=6-23): 10g, fatty alcohol (4-16 carbon atoms) polyoxyethylene oxypropylene ether (EO=25-45, PO=8~17): 25g; dispersion stabilizer: 3-aminopropyltriethoxysilane: 15g; put in the reaction kettle, heat up to 100°C, slowly add catalyst aluminum acetylacetonate: 3g, nickel naphthenate : 5g, 7g of titanium dioxide, reacted for 2.5 hours while stirring; then through grinding, homogenization, filtration and separation process, control the particle size of the emulsion below 0.05 microns, and then add co-surfactant: methoxypolyethylene glycol: 15g , dibutyl phthalate: 5g, propylene glycol: 15g, stir evenly, and cool to obtain a solution that is a polymer functional additive for coal combustion. This functional polymer additive is suitable for coals with a sulfur content of 1.0-2.0%, a volatile fraction of 32-40%, and a calorific value of 3800-4200Kcal / kg. Use a metering pump to spray on the su...

specific Embodiment 3

[0026] The functional polymer material used in this example: polyethylene glycol monomethyl ether (EO=4~45): 55g; dispersion stabilizer: γ-methacryloxypropyltriethoxysilane: 10g, put In the reaction kettle, heat up to 120°C, slowly add the catalyst manganese naphthenate: 7g, titanium dioxide: 1g, tungsten oxide: 2g, and react for 5 hours while stirring; then go through grinding, homogenization, filtration and separation processes to control the emulsion The particle size is below 0.5 microns, and finally add co-surfactant: propylene glycol: 5g, dioctyl phthalate: 15g, p-nitrophenol: 5g, stir evenly, and cool to obtain a solution that is a polymer functional additive for coal combustion . This functional polymer additive is suitable for coals with a sulfur content of 1.0-2.0%, a volatile fraction of 5-12%, and a calorific value of 5000-6000Kcal / kg. Use a metering pump to drop 600ppm of the coal mass on the surface of the coal particles, grind it through a coal powder ball mill...

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Abstract

Aiming to provide an additive with low use cost and its preparation method, the invention discloses a polymeric functional additive used in coal combustion and a preparation method thereof. An additive, with the surface modified by a functional polymer material, can have improved stability, activity and dispersity, and can be easier to be absorbed on the surface of coal to boost combustion, thus making the coal combustion more complete and securer, increasing coal burnout rate and fixing harmful substances of coal into the ash content of coal to realize clean combustion. The additive of the invention is prepared through the following steps: subjecting the functional polymer material and a dispersion stabilizer into a reaction at a temperature of 40-120DEG C in a reaction kettle, adding a catalyst with stirring, and leaving the mixture reacting for 1-6 hours; conducting shearing, grinding, homogenizing, filtration and separation, thus realizing the particle size control of an end product; adding an auxiliary surfactant, and cooling the mixture to room temperature, thus obtaining the polymeric functional additive used in coal combustion.

Description

technical field [0001] The invention relates to an additive, in particular to a polymer functional additive used in coal combustion and a preparation method thereof. Background technique [0002] my country is the world's largest coal producer and consumer, but it has also caused serious environmental pollution problems. Clean coal combustion is an important part of coal clean technology, and it is also the main way to achieve sustainable development and solve my country's air pollution measure. In 2010, my country produced more than 3 billion tons of coal, 70% of which were directly used for combustion. Due to backward combustion technology, incomplete combustion, and low combustion efficiency, low-quality coal with low energy levels is not used or wasted, and energy waste is serious. In today's situation where energy saving and emission reduction are listed as key monitoring by various countries, improving energy utilization efficiency and reducing pollutant emissions, e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 徐正华王艳艳刘珩徐振中
Owner 铜陵市绿源复合材料有限责任公司
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