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Preparation method for desulfurizing agent for boiler coal combustion

A desulfurizer and coal-burning technology, applied in the field of desulfurizers, can solve the problems of low furnace temperature and poor desulfurization effect, and achieve the effect of increasing furnace temperature and good desulfurization

Active Publication Date: 2015-04-01
龙基能源集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is: when conventional desulfurizers are applied to boiler coal-fired additives, the desulfurization effect is not good and the furnace temperature is not high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 2: Dry the sol mixture at 110°C, and then sinter in a muffle furnace at a temperature of 700°C for 3 hours to obtain alumina doped with calcium oxide;

[0023] Step 3: Aluminum oxide doped with calcium oxide, 3Kg of silicon dioxide, 2Kg of iron oxide, 10Kg of sodium nitrate, 3Kg of zinc hydroxide, 2Kg of calcium fluoride, 4Kg of ferric chloride, 3Kg of magnesium oxide, 2Kg of iron powder, 2Kg of aluminum powder is mixed evenly and crushed to a particle size of 200-400 mesh.

[0024] Example 2

Embodiment 2

[0026] Step 2, drying the sol mixture at 120°C, and then sintering in a muffle furnace at a temperature of 900°C for 6 hours to obtain alumina doped with calcium oxide;

[0027] Step 3, alumina doped with calcium oxide, 5Kg of silicon dioxide, 4Kg of iron oxide, 15Kg of sodium nitrate, 5Kg of zinc hydroxide, 4Kg of calcium fluoride, 6Kg of ferric chloride, 5Kg of magnesium oxide, 4Kg of iron powder, 4Kg of aluminum powder is mixed evenly and crushed to a particle size of 200-400 mesh.

[0028] Example 3

Embodiment 3

[0030] Step 2: Dry the sol mixture at 115°C, and then sinter in a muffle furnace at 800°C for 5 hours to obtain calcium oxide-doped alumina;

[0031] Step 3, alumina doped with calcium oxide, 4Kg of silicon dioxide, 3Kg of iron oxide, 12Kg of sodium nitrate, 4Kg of zinc hydroxide, 3Kg of calcium fluoride, 5Kg of ferric chloride, 4Kg of magnesium oxide, 3Kg of iron powder, 3Kg of aluminum powder is mixed evenly and crushed to a particle size of 200-400 mesh.

[0032] Comparative example 1

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PUM

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Abstract

The invention discloses a preparation method for a desulfurizing agent for boiler coal combustion, and belongs to the technical field of desulfurizing agents. The preparation method comprises the following steps: adding aluminum nitrate nonahydrate in water, heating, dropping a sodium hydroxide solution, holding the temperature after completing dropping, and adding calcium oxide to obtain a sol mixture; drying the sol mixture, and sintering the dried mixture in a muffle furnace to obtain calcium-oxide-doped aluminum oxide; uniformly mixing and crushing the calcium-oxide-doped aluminum oxide, silicon dioxide, ferric oxide, sodium nitrate, zinc hydroxide, calcium fluoride, ferric trichloride, magnesium oxide, iron powder and aluminum powder to obtain the desulfurizing agent for the boiler coal combustion. According to the preparation method for the desulfurizing agent for the boiler coal combustion, the desulfurizing agent is prepared by utilizing the aluminium oxide as a carrier, so that the coal combustion procedure can be greatly desulfurized, and the temperature of a furnace box can be remarkably improved.

Description

technical field [0001] The invention discloses a preparation method of a desulfurizing agent used for boiler coal combustion, and belongs to the technical field of desulfurizing agents. Background technique [0002] Due to the constraints of the characteristics of my country's energy resources and the level of economic development. It determines that the energy structure dominated by coal will exist in our country for a long time. As a result of massive burning of fossil fuels such as coal, the air pollution in our country is very serious. The continuous increase of sulfur dioxide emissions will do great harm to human health, crop growth and production increase, industrial product quality improvement, and the protection of buildings and cultural relics. cause large economic losses. In order to control acid rain pollution, further popularization and development of flue gas desulfurization technology is particularly important. Desulfurization technologies and methods ca...

Claims

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Application Information

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IPC IPC(8): C10L9/10
Inventor 李康
Owner 龙基能源集团有限公司
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