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Preparation method of boiler fired coal combustion cleaning additive

A cleaning aid, coal-burning technology, applied in separation methods, fuel additives, chemical instruments and methods, etc., can solve the problems of low utilization efficiency of chemical agents, restricting popularization and application, and large investment in equipment, achieving convenient operation, solid particles The effect of high concentration and low equipment investment

Inactive Publication Date: 2013-03-13
JIANGNAN UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The equipment investment of this scheme is large, and the utilization efficiency of chemical agents is low, which restricts its popularization and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Alkaline earth-rare earth multi-component doped metal nano active particles (Zr 1.8. La 2 Ce 1 Mg 3.68 Ca 2 mn 2 SiO 4 ) preparation

[0018] Will 2800g (C 2 h 5 O) 4 Si (produced by Shandong Zibo Jiuyu Chemical Co., Ltd.), 10596g of Zr (NO 3 ) 4 ·5H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 11875.6g of La (NO 3 ) 3 ·6H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 6733.6g of Ce (NO 3 ) 3 ·6H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 5952g of anhydrous MgSO 4 (produced by Shandong Laizhou Litong Chemical Co., Ltd.), 4717.7g of CaSO 4 2H 2 O (produced by Chunlan Gypsum Products Co., Ltd., Dangyang City, Hubei Province), MnSO of 4543g 4 ·H 2 O (produced by Dalian Yushan Chemical Co., Ltd., Liaoning Province) is put into a 10L autoclave (Shandong Weihai Huixin Chemical Machinery Co., Ltd., model GSH-10) with a polytetrafluoroethylene liner, and 7L ethylene glycol methyl ether (Jiangsu Yinyan Chemical Co., Ltd.) and 1...

Embodiment 2

[0031] 1. Alkaline earth-rare earth multi-component doped metal nano active particles (Zr 2.2 La 3.2 Ce 0.56 Mg 5 Ca 2 mn 3 SiO 4 ) preparation

[0032] Will 2800g (C 2 h 5 O) 4 Si (produced by Shandong Zibo Jiuyu Chemical Co., Ltd.), 12691.7g of Zr(NO 3 ) 4 ·5H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 18622.6g of La (NO 3 ) 3 ·6H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 3735g of Ce (NO 3 ) 3 ·6H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 8026g of anhydrous MgSO 4 (produced by Shandong Laizhou Litong Chemical Co., Ltd.), 4717.7g of CaSO 4 2H 2 O (produced by Chunlan Gypsum Products Co., Ltd., Dangyang City, Hubei Province), MnSO of 6814.5g 4 ·H 2O (produced by Dalian Yushan Chemical Co., Ltd., Liaoning Province) is put into a 10L autoclave (Shandong Weihai Huixin Chemical Machinery Co., Ltd., model GSH-10) with a polytetrafluoroethylene liner, and 7L ethylene glycol methyl ether (Jiangsu Yinyan Chemical Co., Ltd.) and ...

Embodiment 3

[0045] 1. Alkaline earth-rare earth multi-component doped metal nano active particles (Zr 1.8 La 1.9 Ce 0.56 Mg 3 Ca 2 mn 1.98 SiO 4 ) preparation

[0046] Will 2800g (C 2 h 5 O) 4 Si (produced by Shandong Zibo Jiuyu Chemical Co., Ltd.), 10596g of Zr (NO 3 ) 4 ·5H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 11283g of La (NO 3 ) 3 ·6H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 3734g of Ce (NO 3 ) 3 ·6H 2 O (produced by Shanghai Diyang Chemical Co., Ltd.), 4900g of anhydrous MgSO 4 (produced by Shandong Laizhou Litong Chemical Co., Ltd.), 4717.7g of CaSO 4 2H 2 O (produced by Chunlan Gypsum Products Co., Ltd., Dangyang City, Hubei Province), MnSO of 4589.3g 4 ·H 2 O (produced by Dalian Yushan Chemical Co., Ltd., Liaoning Province) is put into a 10L autoclave (Shandong Weihai Huixin Chemical Machinery Co., Ltd., model GSH-10) with a polytetrafluoroethylene liner, and 7L ethylene glycol methyl ether (Jiangsu Yinyan Chemical Co., Ltd.) and...

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Abstract

The invention relates to a preparation method of a boiler fired coal combustion cleaning additive, which belongs to the technical field of environmental protection. The invention relates to the following steps that: alkaline earth-rare earth doped metal nanometer active particles (Zr: 1.8 to 22; La: 1.9 to 3.2, Ce: 0.56 to 2; Mg:3 to 5; Ca: 2 to 2.5; Mn:1.98 to 3; SiO:4) with desulfurized nitrogen activity are obtained by co-precipitation through a hydrothermal method, dispersed in water with betaine surfactant as the dispersant and added with thickening stabilizer and efficiency viscosity modifier to prepare the stable boiler fired coal combustion cleaning additive, wherein the weight concentration of the nano active particles in the prepared water reaches 30 to 50 percent, the dispersion stable period is longer than 6 months, the used water can pass a 3mu m microporous membrane after being diluted until the weight concentration is 3 percent, the diluted combustion cleaning additive is sprayed in a boiler combustion area and is atomized, the desulfurization rate to the combustion flue gas of medium-sized and small-sized fire coal boilers reaches 85 percent, and the denitrification rate of the flue gas reaches 50 percent. The preparation method of boiler fired coal combustion cleaning additive is a technology for removing sulfur and nitrogen in the boiler flue gas, which complies with China's national conditions, has little investment and lower operation cost.

Description

technical field [0001] The present invention provides a stable Zr 1.8～2.2 La 1.9～3.2 Ce 0.56～2 Mg 3～5 Ca 2～2.5 mn 1.98～3 SiO 4 The invention relates to a preparation method of an alkaline earth-rare earth multi-element doped metal nanometer active particle-water dispersion system, which is used in the desulfurization and denitrification technology of boiler coal combustion flue gas, and belongs to the technical field of environmental protection. Background technique [0002] Coal is an important fuel and chemical raw material. The combustion of coal produces a large amount of SO 2 and NO x The gas will cause great harm to human health and the ecological balance of nature. How to Remove SO from Coal-fired Flue Gas 2 , NO x has become an urgent problem to be solved. A large amount of SO is released during the combustion process of existing industrial boilers in my country 2 and NO x , the national annual due to SO 2 and NO x The losses caused by the formation o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L10/18B01D53/60
CPCY02A50/20
Inventor 王峰李敏娜韩成斌崔正刚
Owner JIANGNAN UNIV
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