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Method for preparing coal economizing agents

A technology of coal-saving agent and surfactant, which is applied in the field of preparation of coal-saving agent, can solve the problems of large amount of addition, pollution of the environment, etc., and achieve the improvement of sulfur fixation rate, conversion rate and sulfation rate, and enhanced connection Effect

Active Publication Date: 2018-06-12
内蒙古黑猫煤化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a preparation method of a coal-saving agent in view of the problems that the existing coal-saving agent has a large amount of addition and pollutes the environment

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  • Method for preparing coal economizing agents

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preparation example Construction

[0024] A preparation method of a coal-saving agent, the preparation method comprising the steps of:

[0025] (1) According to the mass ratio of 1:5, mix the multi-walled carbon nanotubes and chitosan solution, and ultrasonically oscillate at a temperature of 70-80°C for 3-4 hours to obtain the oscillation liquid. According to the mass ratio of 10-15:1, Mix the alcohol aqueous solution and the surfactant, and stir evenly to obtain a mixed solution;

[0026] (2) In terms of parts by weight, take 40~50 parts of mixed solution, 10~15 parts of ethanol solution, 5~6 parts of oscillating solution, and 1~2 parts of butyl titanate, and add the oscillating solution to the mixed solution for ultrasonic dispersion 1 For ~2 h, add butyl titanate and ethanol solution under stirring at 200~300r / min at a temperature of 28~32°C, let it stand for 4~5 h, filter to obtain a filter residue, and dry the filter residue at a temperature of 100~120°C for 3~ 4h, and then roasted at a temperature of 10...

Embodiment 1

[0031] Multi-walled carbon nanotubes were purchased from Beijing Deke Daojin Technology Co., Ltd.

[0032] Chitosan solution is to mix chitosan and acetic acid solution according to the mass ratio of 1:5, and stir evenly to obtain chitosan solution.

[0033] The alcohol aqueous solution is to mix ethanol and water evenly according to the mass ratio of 1:0.8 to obtain the alcohol aqueous solution.

[0034] The surfactant was cetyltrimethylammonium bromide.

[0035] Gases are nitrogen, carbon dioxide, oxygen.

[0036] The cleaning agent is cyclopentadiene.

[0037] A preparation method of a coal-saving agent, the preparation method comprising the steps of:

[0038](1) According to the mass ratio of 1:5, mix the multi-walled carbon nanotubes and chitosan solution, and ultrasonically oscillate for 3 hours at a temperature of 70°C to obtain the oscillation liquid. The agent is mixed, stirred evenly, and a mixed solution is obtained;

[0039] (2) In parts by weight, take 40 par...

Embodiment 2

[0044] Multi-walled carbon nanotubes were purchased from Beijing Deke Daojin Technology Co., Ltd.

[0045] Chitosan solution is to mix chitosan and acetic acid solution according to the mass ratio of 1:5, and stir evenly to obtain chitosan solution.

[0046] The alcohol aqueous solution is to mix ethanol and water evenly according to the mass ratio of 1:0.8 to obtain the alcohol aqueous solution.

[0047] The surfactant is sodium lauryl sulfate.

[0048] Gases are nitrogen, carbon dioxide, oxygen.

[0049] The cleaning agent is cyclopentadiene.

[0050] A preparation method of a coal-saving agent, the preparation method comprising the steps of:

[0051] (1) Mix multi-walled carbon nanotubes and chitosan solution at a mass ratio of 1:5, and ultrasonically oscillate at a temperature of 75°C for 3 hours to obtain an oscillation solution. The agent is mixed, stirred evenly, and a mixed solution is obtained;

[0052] (2) In terms of parts by weight, take 45 parts of mixed solu...

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Abstract

The invention relates to the field of fuel coal additives, in particular to a method for preparing coal economizing agents. The method has the advantages that multi-walled carbon nano-tubes are used as carriers, Van Der Waals force is available between carbon atoms in the multi-walled carbon nano-tubes and oxygen molecules, the oxygen molecules are restrained on the surfaces of the multi-walled carbon nano-tubes, thermal movement of the oxygen molecules is intensified when the temperatures are increased, accordingly, the oxygen molecules have high kinetic energy, restraint effects of the Van Der Waals force between the oxygen molecules and the multi-walled carbon nano-tubes are broken through by a large portion of the oxygen molecules, the oxygen molecules can be separated from the surfaces of the multi-walled carbon nano-tubes, and oxygen can be released; the coal economizing agents are modified by surfactants and are fabricated by chitosan, the chitosan is adsorptive, connection between the multi-walled carbon nano-tubes and active components-catalysts can be improved by the surfactants, acting force of the multi-walled carbon nano-tubes and the active components can be enhanced,the active components are difficult to dissolve and release, the actual loading of the active components can be increased, accordingly, the efficiency of boilers further can be improved, and coal canbe saved to a great extent.

Description

technical field [0001] The invention relates to the field of coal-burning additives, in particular to a preparation method of a coal-saving agent. Background technique [0002] Coal is mainly composed of elements such as carbon, hydrogen, oxygen, nitrogen, sulfur, phosphorus, water, and ash. The sum of carbon, hydrogen, and oxygen accounts for more than 95% of the organic matter. There are lignite, bituminous coal, and anthracite. Coal resources are non-renewable resources. With the large-scale mining and use every year, the dust and carbon dioxide produced after a large amount of coal combustion will have an adverse impact on the environment and climate. Therefore, reducing coal consumption and carbon emissions is a must for all human beings. It is a very important issue of energy saving and environmental protection. Due to the low thermal efficiency of the coal-fired way of life, the combustion equipment cannot completely burn the coal supplied to it. The incompletely bur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
CPCC10L9/10
Inventor 丁玉琴乔舍林凡
Owner 内蒙古黑猫煤化工有限公司
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