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Nano composite type coal-saving desulfurization and denitrification additive

A technology for desulfurization, denitrification and additives, which is applied in the field of nano-composite coal-saving desulfurization and denitrification additives for coal, which can solve the problems of high environmental conditions for use and storage, unsatisfactory desulfurization and denitrification effects, and the decline in the quality of coal additives, so as to reduce the activation energy. , Improve the mechanical structure and crystal properties, and reduce the load

Inactive Publication Date: 2014-03-26
MAANSHAN CHINASEA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common situation in the coal additive market is that the coal-saving effect is unstable, the desulfurization, especially the denitrification effect is not ideal, the use and storage require high environmental conditions, and it is easy to cause a decline in the quality of coal additives. Some also need to configure related equipment, large investment, The economic benefit is not obvious, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A nano-composite coal-saving desulfurization and denitrification additive for coal is a water dispersion solution, which is composed of a solute and a solvent. The solute includes 15 parts (mass) of nano-titanium dioxide; 3 parts (mass) of a mixture of vanadium pentoxide, tungsten trioxide and iron oxide 2 parts (mass) of rare earth lanthanum and high alumina bauxite; 1 part (mass) of triethanolamine acetate; 25 parts (mass) of nitrate; 20 parts (mass) of a mixture of calcium oxide and magnesium oxide; 5 parts of activated carbon fiber (mass), the solvent is deionized water, and the mass percentage concentration of coal-saving desulfurization and denitrification additives is 10%. When in use, directly spray the coal-saving desulfurization and denitrification additive evenly on the coal surface, and use a mixer or a pulverizer to fully stir and mix.

Embodiment 2

[0026] A nano-composite coal-saving desulfurization and denitrification additive for coal is a water dispersion solution, consisting of a solute and a solvent. The solute includes 45 parts of nano-titanium dioxide; 10 parts of a mixture of vanadium pentoxide, tungsten trioxide and iron oxide (including The mass ratio of tungsten trioxide and tungsten trioxide is 80:20, and then it can be combined with iron oxide arbitrarily); 8 parts of rare earth lanthanum and high alumina bauxite; 3 parts of triethanolamine acetate; 35 parts of nitrate, and the nitrate is ammonium nitrate and sodium nitrate (the two can be combined arbitrarily); 30 parts of the mixture of calcium oxide and magnesium oxide (the two can be combined in any mass ratio); 10 parts of activated carbon fiber, the solvent is deionized water, and the quality of coal-saving desulfurization and denitrification additive The percentage concentration is 15%. During use, with embodiment 1.

Embodiment 3

[0028] A nano-composite coal-saving desulfurization and denitrification additive for coal is a water dispersion solution, which is composed of a solute and a solvent. The solute includes 20 parts of nano-titanium dioxide; 6 parts of a mixture of vanadium pentoxide, tungsten trioxide and iron oxide; rare earth lanthanum and high aluminum 3 parts of bauxite; 2 parts of triethanolamine acetate; 28 parts of nitrate; 25 parts of a mixture of calcium oxide and magnesium oxide; %. During use, with embodiment 1.

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PUM

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Abstract

The invention discloses a nano composite type coal-saving desulfurization and denitrification additive and belongs to the environmental-friendly coal-saving field. The coal-saving desulfurization and denitrification additive is water dispersible solution and consists of solute and a solvent, wherein the solute comprises the following components in parts by weight: 15-45 parts of nano titanium dioxide, 2-8 parts of rare earth lanthanum and high-alumina bauxite, 1-3 parts of triethanolamine acetate, 25-35 parts of nitrate and 5-10 parts of active carbon fiber; the solvent is deionized water, and the mass percentage concentration of the coal-saving desulfurization and denitrification additive is 10-35%. The nano composite type coal-saving desulfurization and denitrification additive disclosed by the invention has the beneficial effects that the burning condition of coal can be effectively improved, the coal consumption can be reduced, and the emission of main pollutants such as SO2 and NOx is reduced, and also has the advantages of stable performance, convenience in storage, good coal-saving effect, obvious emission reduction, simple use and fast investment return and the like.

Description

technical field [0001] The invention relates to a coal-saving additive, in particular to a nanocomposite coal-saving desulfurization and denitrification additive for coal. Background technique [0002] Statistics show that in 2011, my country's coal consumption accounted for 46.2% of the world's total coal consumption, making it the largest country in coal consumption. The International Energy Agency predicts that my country's coal consumption will account for more than 50% of the global coal demand by 2014. Unless the economic growth slows down, the seaborne coal volume will continue to rise. On the contrary, my country's coal reserves per capita are small, only two-thirds of the world's. In my country, coal combustion is the main way of coal utilization. Therefore, on the basis of the existing coal storage and consumption, if the coal combustion conditions can be improved, the utilization efficiency of coal will be greatly improved, thereby promoting the saving and develo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 何宝国张金凤俞光海佘祥海
Owner MAANSHAN CHINASEA NEW MATERIAL
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