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Flue gas desulfurization and denitration integrated technology

A technology for desulfurization, denitrification, and flue gas, which is applied in the direction of ammonium sulfate, chemical instruments and methods, and separation of dispersed particles, and can solve problems such as increasing costs

Active Publication Date: 2015-06-03
BEIJING SUN SILVER SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding additives can certainly improve the removal efficiency, but the catalyst or additive itself will increase the cost, and secondly, it will bring additional processing costs in the subsequent treatment of the absorption liquid

Method used

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  • Flue gas desulfurization and denitration integrated technology

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Industrial smoke emission: 35000m 3 / h

[0053] SO in flue gas 2 Concentration: 1500~1600mg / m 3

[0054] NO in flue gas x Concentration: 1500~1600mg / m 3

[0055] Inlet temperature of desulfurization flue gas treatment: 200℃

[0056] Inlet temperature of denitrification flue gas treatment: 90°C

[0057] Flue gas outlet SO 2 Concentration: 30mg / m 3

[0058] Smoke exhaust outlet NO x Concentration: 95mg / m 3

Embodiment 2

[0060] Industrial smoke emission: 800 000m 3 / h

[0061] SO in flue gas 2 Concentration: 2800mg / m 3

[0062] NO in flue gas x Concentration: 2000mg / m 3

[0063] Inlet temperature of desulfurization flue gas treatment: 160°C

[0064] Inlet temperature of denitrification flue gas treatment: 60°C

[0065] Flue gas outlet SO 2 Concentration: 20mg / m 3

[0066] Smoke exhaust outlet NO x Concentration: 75mg / m 3

Embodiment 3

[0068] Industrial smoke emission: 1 600 000m 3 / h

[0069] SO in flue gas 2 Concentration: 3000mg / m 3

[0070] NO in flue gas x Concentration: 3500mg / m 3

[0071] Inlet temperature of desulfurization flue gas treatment: 120°C

[0072] Inlet temperature of denitrification flue gas treatment: 40°C

[0073] Flue gas outlet SO 2 Concentration: 35mg / m 3

[0074] Smoke exhaust outlet NO x Concentration: 80mg / m 3

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Abstract

The invention relates to environment-friendly equipment for desulfurizing and denitrating flue gas and an operation process of the environment-friendly equipment. The operation process is characterized in that the simultaneous desulfurization and denitration process is carried out by combining a process unit capable of efficiently utilizing flue gas heat and a forced oxidation wet-process chemical absorption method. When being used for desulfurization and denitration treatment of industrial flue gas, the process has the advantages of low cost and stability during flue gas content fluctuation; and the discharging concentration of the desulfurized flue gas is not larger than 50mg / m<3>, and the discharging concentration of denitrated flue gas is not larger than 100mg / m<3>.

Description

technical field [0001] The invention relates to an environmental protection equipment for flue gas desulfurization and denitrification and its operating process, which is characterized in that it adopts an integrated desulfurization and denitrification technology combining a combination of devices that efficiently utilize flue gas heat and a forced oxidation wet chemical absorption method, and belongs to the fields of chemical industry and environmental protection. Background technique [0002] Sulfur dioxide (SO2) emitted by industrial enterprises 2 ) and nitrogen oxides (NO x ) is one of the main sources of air pollution. The resulting air pollution, especially acid rain and smog, is very serious and causes huge economic losses. It has become the main factor restricting the sustainable development of my country's economy and society. At the same time, air pollution has brought a huge impact on people's lives, and it has also caused great harm to people's health. Therefor...

Claims

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Application Information

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IPC IPC(8): B01D53/75B01D53/79B01D53/78B01D53/50B01D53/56B01D53/96C01C1/24
Inventor 宋云华刘欣魏玉胜李正林陈建铭李璐
Owner BEIJING SUN SILVER SCI & TECH
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