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

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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

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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Example Embodiment

[0037] Example 1

[0038] As an embodiment of the present invention, a desulfurization and denitration absorption device, 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, the flue gas inlet 2 is arranged at the lower part of the side wall of the desulfurization and denitrification tower, and a flue gas mixing distributor 3 and an oxidation spray layer are sequentially arranged in the desulfurization and denitration tower from bottom to top. 4. The first air cap layer 8, the ammonia spray distribution layer 9, the second air cap layer 11, the ammonia suction spray layer 13, the mist eliminator 14, the flue gas outlet 15;

[0039] The desulfurization and denitrification absorption device also includes an oxidant supply tank 20. The oxidant supply tank is equipped with a hydrogen peroxide input pipe and stores hydrogen peroxide solution. The bottom of the oxida...

Example Embodiment

[0049] Example 2

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

[0051] The desulfurization and denitrification absorption device of this embodiment adopts a wavy vertical cross-section plate, which can make the hydrogen peroxide solution stay on the catalyst longer, so that the upwardly flowing flue gas is fully in contact with the large specific surface area of ​​the hydrogen peroxide , Improve oxidation efficiency, desulfurization efficiency and denitration efficiency are higher than that of 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
CPCB01D53/60B01D53/78B01D53/8637B01D2251/104B01D2251/106B01D2258/0283Y02A50/20
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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