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Wet desulfurization, denitration and absorption apparatus

A desulfurization, denitrification, and absorption device technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of unreasonable device processing flow, insufficient gas-liquid mixing, and large amount of ammonia escape in the gas phase, etc., to improve oxidation efficiency, less ammonia overflow, and high denitrification efficiency

Pending Publication Date: 2019-11-08
GUANGDONG J TECH ENVIRONMENT SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There are many ways of desulfurization and denitrification treatment of coking flue gas in the prior art, but the defects of the existing technical methods and devices are: the processing flow of the device in the prior art is not reasonable enough, and the gas-liquid mixing is not enough during desulfurization and denitrification spraying Adequate, resulting in poor desulfurization and denitrification effect, and a large amount of ammonia escape in the gas phase

Method used

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  • Wet desulfurization, denitration and absorption apparatus
  • Wet desulfurization, denitration and absorption apparatus
  • Wet desulfurization, denitration and absorption apparatus

Examples

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Embodiment 1

[0038] As a kind of desulfurization and denitrification absorption device of the embodiment of the present invention, such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the desulfurization and denitrification absorption device includes a desulfurization and denitrification tower 1, and the flue gas inlet 2 is arranged at the lower part of the side wall of the desulfurization and denitrification tower. 4. The first gas cap layer 8, the ammonia spray distribution layer 9, the second gas cap layer 11, the ammonia absorption spray layer 13, the mist eliminator 14, and the flue gas outlet 15;

[0039] The desulfurization and denitrification absorption device also includes an oxidant supply pool 20, the oxidant supply pool is provided with a hydrogen peroxide input pipe and stores a hydrogen peroxide solution, the bottom of the oxidant supply pool is provided with an ozone uniform distribution pipe 21, and the ozone uniform distribution pipe is connected to the ozone T...

Embodiment 2

[0050] As a kind of desulfurization and denitrification absorption device of the embodiment of the present invention, such as Figure 5 As shown, the only difference between this embodiment and Embodiment 1 is: the catalyst plate is a plate with a wavy vertical section.

[0051] The desulfurization and denitrification absorption device of this embodiment adopts a wavy plate in vertical section, which can make the hydrogen peroxide solution stay on the catalyst for a longer time, so that the upwardly flowing flue gas is fully in contact with the large specific surface area of ​​hydrogen peroxide. , improve oxidation efficiency, desulfurization efficiency and denitrification efficiency are higher than those in Example 1.

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Abstract

The invention provides a wet desulfurization, denitration and absorption apparatus. The desulfurization, denitration and absorption apparatus comprises a desulfurization and denitration tower; a fluegas inlet is formed in the lower part of the side wall of the desulfurization and denitration tower; and the interior of the desulfurization and denitration tower is successively provided with a fluegas mixing and distribution device, an oxidation spraying layer, a first gas cap layer, an ammonia spraying and distribution layer, a second gas cap layer, an ammonia absorption and spraying layer, ademister and a flue gas outlet from bottom to top. The wet desulfurization, denitration and absorption apparatus further comprises an oxidant supplying pool and a buffer pool. The wet desulfurization,denitration and absorption apparatus of the invention first oxidizes sulfur dioxide and nitrogen oxide, then performs absorption with ammonia water, and then absorbs overflowing ammonia gas with hydrogen peroxide and oxidizes residual sulfur dioxide and nitrogen oxide left after oxidation. The wet desulfurization, denitration and absorption apparatus of the invention has high desulfurization efficiency, high denitration efficiency, and a small overflow amount of ammonia gas.

Description

technical field [0001] The invention belongs to the technical field of flue gas purification equipment, and in particular relates to a wet desulfurization and denitrification absorption device. Background technique [0002] There are many ways of desulfurization and denitrification treatment of coking flue gas in the prior art, but the defects of the existing technical methods and devices are: the processing flow of the device in the prior art is not reasonable enough, and the gas-liquid mixing is not enough during desulfurization and denitrification spraying Sufficient, resulting in poor desulfurization and denitrification effect, and a large amount of ammonia escape in the gas phase. Contents of the invention [0003] The object of the present invention is to provide a wet desulfurization and denitrification absorption device to overcome the shortcomings of the prior art. [0004] In order to achieve the above object, the technical solution adopted by the present invent...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/60B01D53/78
CPCB01D53/8637B01D53/60B01D53/78B01D2251/106B01D2251/104B01D2258/0283Y02A50/20
Inventor 钟璐杨颖欣胡静龄胡小吐刘勇杨森林
Owner GUANGDONG J TECH ENVIRONMENT SCI CO LTD
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