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Desulfurization and denitration tower with staggeredly arranged desulfurization and denitration catalyst beds

A technology of desulfurization catalyst and denitrification catalyst, which is applied in the field of waste gas treatment, can solve the problems of catalyst poisoning, large floor area, and reduced service life of the catalyst, and achieve the effect of improving efficiency and reducing floor space

Pending Publication Date: 2019-12-20
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

Therefore, in addition to the SCR reaction device, an ammonia station, a flue gas heating system, a boiler waste heat recovery system, and a GGH heat exchange device must also be built, resulting in a large system, high investment, and high energy consumption.
[0004] In the existing desulfurization and denitrification process, the desulfurization process and the denitrification process are carried out in the desulfurization tower and the denitrification tower respectively, which occupy a large area, and some impurities produced after the denitrification process or the desulfurization process will have a poisonous effect on the catalyst in the subsequent operation, reducing The service life of the catalyst and the cost of the desulfurization and denitrification process are increased, so it is necessary to develop a new desulfurization and denitrification equipment

Method used

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  • Desulfurization and denitration tower with staggeredly arranged desulfurization and denitration catalyst beds
  • Desulfurization and denitration tower with staggeredly arranged desulfurization and denitration catalyst beds
  • Desulfurization and denitration tower with staggeredly arranged desulfurization and denitration catalyst beds

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Embodiment 1

[0038] This embodiment provides a desulfurization and denitrification tower with desulfurization and denitrification catalyst beds interlacedly arranged, its structure is as follows figure 1 As shown, a desulfurization catalyst bed and a denitration catalyst bed are arranged at intervals inside the tower body, the desulfurization catalyst bed is an unsaturated polyester resin matrix loaded desulfurization catalyst, and the denitration catalyst bed is an unsaturated polyester resin The substrate supports the denitration catalyst.

[0039] Wherein, the height of the desulfurization and denitration tower is 5m, the interval between two adjacent catalysts and beds is 0.2m, the number of desulfurization catalyst beds and denitration catalyst beds is 4 each, and the mass fraction of desulfurization catalyst in the desulfurization catalyst bed is The mass fraction of the denitration catalyst in the denitration catalyst bed is 1.5%, and the porosity of the desulfurization catalyst bed a...

Embodiment 2

[0041] This embodiment provides a desulfurization and denitrification tower with desulfurization and denitrification catalyst beds interlacedly arranged, its structure is as follows figure 2 As shown, a desulfurization catalyst bed and a denitration catalyst bed are arranged at intervals inside the tower body, the desulfurization catalyst bed is an unsaturated polyester resin matrix loaded desulfurization catalyst, and the denitration catalyst bed is an unsaturated polyester resin The substrate supports the denitration catalyst.

[0042] Wherein, the height of the desulfurization and denitration tower is 10m, the interval between two adjacent catalysts and beds is 0.8m, the number of desulfurization catalyst beds and denitration catalyst beds is 5 each, and the mass fraction of desulfurization catalyst in the desulfurization catalyst bed is The mass fraction of the denitration catalyst in the denitration catalyst bed is 2.5%, and the porosity of the desulfurization catalyst b...

Embodiment 3

[0044] This embodiment provides a desulfurization and denitrification tower with desulfurization and denitrification catalyst beds interlacedly arranged, its structure is as follows image 3 As shown, a desulfurization catalyst bed and a denitration catalyst bed are arranged at intervals inside the tower body, the desulfurization catalyst bed is an unsaturated polyester resin matrix loaded desulfurization catalyst, and the denitration catalyst bed is an unsaturated polyester resin The substrate supports the denitration catalyst.

[0045] Wherein, the height of the desulfurization and denitrification tower is 8m, the interval between two adjacent catalysts and beds is 0.6m, the number of desulfurization catalyst beds and denitration catalyst beds is 3 each, and the mass fraction of desulfurization catalyst in the desulfurization catalyst bed is The mass fraction of the denitration catalyst in the denitration catalyst bed is 1.8%, and the porosity of the desulfurization catalyst...

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Abstract

The invention provides a desulfurization and denitration tower with staggeredly arranged desulfurization and denitration catalyst beds. A tower body is internally equipped with desulfurization catalyst beds and denitration catalyst beds in staggered arrangement. The desulfurization catalyst beds are composed of an unsaturated polyester resin matrix loaded desulfurization catalyst, and the denitration catalyst bed layers are composed of an unsaturated polyester resin matrix loaded denitration catalyst. The desulfurization and denitration tower provided by the invention combines the desulfurization step and the denitration step, reduces the space occupation of desulfurization tower and denitration tower, and improves the efficiency and effect of desulfurization and denitration.

Description

technical field [0001] The invention belongs to the field of waste gas treatment, and relates to a desulfurization and denitrification tower, in particular to a desulfurization and denitrification tower in which desulfurization and denitration catalyst beds are staggered. Background technique [0002] The coke oven flue gas is the product of combustion in the coke oven heating system. The temperature is below 300°C, and the temperature at the root of the chimney is about 230-280°C. The waste gas contains a lot of heat energy and should be recycled. At the same time, during the combustion of coke oven heating fuel, NO which is harmful to the environment will be generated at high temperature x , due to the different fuels used for coke oven heating, the NO in the exhaust gas x There are also differences in the content of NO, but usually the NO in the exhaust gas x The concentration of NO in the flue exhaust gas has exceeded the emission limit specified in the relevant nation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/75B01D53/18B01D53/50B01D53/56B01D53/60
CPCB01D53/1481B01D53/18B01D53/75B01D53/8609B01D53/8631B01D53/8637B01D53/869B01D2258/0283
Inventor 杨颖欣钟璐胡静龄刘勇胡小吐杨森林
Owner GUANGDONG J TECH ENVIRONMENT SCI CO LTD
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