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Coal-saving devulcanized coke cleaning clean synergistic agent and preparation technique thereof

A synergist and clean technology, applied in the field of clean coal, can solve the problems of poor desulfurization effect and low desulfurization rate

Inactive Publication Date: 2009-01-21
陈宏谋 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3. The single sulfur fixation and desulfurization technology in combustion fails to solve the problem of sulfur fixation and secondary release in the high temperature area above 900°C, the desulfurization rate is low, and the desulfurization effect is not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment 1: first get magnesium hydroxide, sodium carbonate, manganese dioxide, strontium carbonate and barium hydroxide and grind respectively, make its particle size be 120-180 mesh, then get activated calcium oxide, activated carbon and ferrosilicon powder and grind respectively Crushed to make the particle size less than 180 mesh; then firstly mix activated calcium oxide and magnesium hydroxide, then add sodium carbonate, ferrosilicon powder, manganese dioxide, strontium carbonate, barium hydroxide, and finally add activated carbon and mix evenly to obtain clean and enhanced Effect agent, its mass percentage is: active calcium oxide is 20%, magnesium hydroxide is 12%, sodium carbonate is 20%, activated carbon is 9%, ferrosilicon powder is 15%, manganese dioxide is 12%, strontium carbonate 5% for barium hydroxide and 7% for barium hydroxide. The cleaning synergist obtained according to the above preparation process contains by mass percentage: 20% for activated calc...

Embodiment 2

[0013] Embodiment 2: first get magnesium hydroxide, sodium carbonate, manganese dioxide, strontium carbonate and barium hydroxide and grind respectively, make its particle size be 120-180 order, then get activated calcium oxide, activated carbon and ferrosilicon powder and grind respectively Crushed to make the particle size less than 180 mesh; then firstly mix activated calcium oxide and magnesium hydroxide, then add sodium carbonate, ferrosilicon powder, manganese dioxide, strontium carbonate, barium hydroxide, and finally add activated carbon and mix evenly to obtain clean and enhanced Effect agent, its mass percentage is: active calcium oxide is 30%, magnesium hydroxide is 10%, sodium carbonate is 18%, activated carbon is 10%, ferrosilicon powder is 12%, manganese dioxide is 10%, strontium carbonate 3% for barium hydroxide and 7% for barium hydroxide; the cleaning synergist obtained according to the above preparation process contains by mass percentage: 30% for activated ca...

Embodiment 3

[0014] Embodiment 3: first get magnesium hydroxide, sodium carbonate, manganese dioxide, strontium carbonate and barium hydroxide and grind respectively, make its particle size be 120-180 order, then get activated calcium oxide, activated carbon and ferrosilicon powder and grind respectively Crushed to make the particle size less than 180 mesh; then firstly mix activated calcium oxide and magnesium hydroxide, then add sodium carbonate, ferrosilicon powder, manganese dioxide, strontium carbonate, barium hydroxide, and finally add activated carbon and mix evenly to obtain clean and enhanced Effect agent, its mass percentage is: active calcium oxide is 28%, magnesium hydroxide is 11%, sodium carbonate is 19%, activated carbon is 8%, ferrosilicon powder is 14%, manganese dioxide is 11%, strontium carbonate 4% for barium hydroxide and 5% for barium hydroxide. The cleaning synergist obtained according to the above preparation process contains by mass percentage: 28% for activated cal...

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Abstract

The invention relates to a process for preparing a clean synergist for saving coal, desulfurization and cleaning coke. Active calcium oxide and magnesium hydrate are mixed and added with sodium carbonate, ferrosilicon powders, manganese dioxide, strontium carbonate and barium hydroxide in turn and finally added with active carbon and evenly mixed to prepare the clean synergist which comprises the following compositions in percentage by weight: 20 to 30 percent of the active calcium oxide, 9 to 12 percent of the magnesium hydrate, 12 to 20 percent of the sodium carbonate, 8 to 10 percent of active carbon, 12 to 15 percent of the ferrosilicon powders, 8 to 12 percent of the manganese dioxide, 3 to 5 percent of the strontium carbonate and 5 to 7 percent of the barium hydroxide. on the premise of unchanging the prior coal burning process and equipment of various boilers and the prior smoke exhaust process and equipment, the clean synergist of the process is only needed to add according to the physicochemical index of coal used by customers, thereby achieving the functions of saving the coal, the desulfurization and cleaning the coke.

Description

technical field [0001] The invention belongs to the technical field of clean coal, and in particular relates to a coal-saving desulfurization and coke cleaning synergist suitable for burning coal in power plant boilers, industrial boilers and kilns and a preparation process thereof. Background technique [0002] At present, there is no combustion-supporting (coal-saving) at home and abroad, SO 2 、No x Cleaning additives with multiple functions such as emission reduction, dust removal, and coke removal, and single-function desulfurization and emission reduction technologies are as follows: [0003] 1. Desulfurization before combustion: the raw coal is desulfurized by concentrated water washing, molding and other methods. The main problem is that the structural sulfur or organic sulfur in coal cannot be removed; and the cost is high, especially the coal used in power plants cannot be used. [0004] 2. Flue gas desulfurization: mainly using flue gas desulfurization device (F...

Claims

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Application Information

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IPC IPC(8): C10L9/10
Inventor 陈宏谋雷积寿陈佐会雷宏洲陈琪窦崇庆
Owner 陈宏谋
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