Flue gas denitration catalytic reactor

A catalytic reactor and catalytic reaction technology, applied in the field of flue gas denitrification, can solve the problem of low utilization rate of catalysts, and achieve the effects of facilitating mass production, increasing the duration of action, and reducing pressure.

Inactive Publication Date: 2019-10-18
高化学(江苏)化工新材料有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the utilization rate of the catalyst is too low for the low temperature and high activity fixed bed SCR reactor, therefore, it is necessary to improve the utilization efficiency of the catalyst

Method used

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  • Flue gas denitration catalytic reactor
  • Flue gas denitration catalytic reactor
  • Flue gas denitration catalytic reactor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] Such as Figure 5 , 6 , the catalytic reaction unit 2 in the catalytic reactor is vertically arranged, the catalytic reaction unit 2 is cylindrical, and the shell 1 of the final catalytic reactor is also cylindrical.

[0065] In this implementation, the adjacent cylindrical catalytic reaction units 2 are connected through the upper connecting plate and the lower connecting plate, and the upper connecting plate and the lower connecting plate are arranged alternately from the inner wall of the housing 1 to the center, and the expansion unit is expanded according to the needs of use. Reactor, determine the number of corresponding catalytic reaction unit 2. The flue gas in the flue first enters the air inlet at the bottom of the shell 1 from the flue gas denitrification catalytic reactor, and then enters from the corresponding lower air intake channel described on the upper connecting plate, crosses the catalyst layer 5 according to the internal design direction, and passe...

Embodiment 2

[0069] Such as Figure 5 , 7 , the catalytic reaction unit 2 in the catalytic reactor is vertically arranged, the catalytic reaction unit 2 is plate-shaped, and the shell 1 of the catalytic reactor finally constitutes a cuboid shape.

[0070] In this implementation, the adjacent cylindrical catalytic reaction units 2 are connected through the upper connecting plate and the lower connecting plate, and the upper connecting plate and the lower connecting plate are arranged alternately from the inner wall of the housing 1 to the center, and the expansion unit is expanded according to the needs of use. Reactor, determine the number of corresponding catalytic reaction unit 2. The flue gas in the flue first enters the air inlet at the bottom of the shell 1 from the flue gas denitrification catalytic reactor, and then enters from the corresponding lower air intake channel described on the upper connecting plate, crosses the catalyst layer 5 according to the internal design direction,...

Embodiment 3

[0074] Such as Figure 8 , 9 , the catalytic reaction unit 2 in the catalytic reactor is formed by connecting multiple groups of catalytic reaction units 2 with a herringbone shape in section, and each catalytic reaction unit 2 is plate-shaped, and the shell 1 of the catalytic reactor finally constitutes a cuboid shape .

[0075] In this embodiment, the catalytic reaction unit 2 is arranged in a slanted plate shape, and the catalytic reaction unit 2 in the housing 1 of the catalytic reactor is, from the outside to the inside, connected to the inner wall of the housing 1 of the catalytic reaction unit 2 at the bottom end, The tops of the catalytic reaction units 2 are connected, and the bottoms of the catalytic reaction units 2 are connected.

[0076] In this implementation, the adjacent cylindrical catalytic reaction units 2 are connected through the upper connecting plate and the lower connecting plate, and the upper connecting plate and the lower connecting plate are arran...

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PUM

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Abstract

The invention discloses a flue gas denitration catalytic reactor. Theflue gas denitration catalytic reactor is arranged in a flue, catalytic reaction units in the catalytic reactor consist of a porousplate and a catalyst; the catalyst is arranged in an accommodating cavity enclosed by the porous plate; a connecting plate and the catalytic reaction unitsare detachably connected; an upper connecting plate and a lower connecting plate in the connecting plate are sequentially arranged in a staggered mode from the inner wall of acasing to the center; a detachable cover plate is arranged ateach ofthe tops of the catalytic reaction units;the flue gas in the flue enters an air inlet at the bottom of the casing from the flue gas denitration catalytic reactor,since the catalytic reaction unitsareconnected through the upper connecting plate and the lower connecting plate, the flue gas crosses a catalyst layer according to the internal design, undergoes a catalytic reaction throughthe catalyticreaction units, enters an upper air outlet passage corresponding to the lower connecting plate, and is discharged from the air outlet. According to the structure, the structural strength which the catalyst needs to withstand is reduced, the duration of the catalyst action is prolonged, and thus the catalyst utilization efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of flue gas denitrification, in particular to a catalytic reactor for flue gas denitrification. Background technique [0002] Flue gas denitrification refers to the removal of NOx in flue gas. According to the treatment process, it can be divided into wet denitrification and dry denitrification. Mainly include: acid absorption method, alkali absorption method, selective catalytic reduction method, non-selective catalytic reduction method, adsorption method, plasma activation method, etc. Some researchers at home and abroad have also developed a method of using microorganisms to treat NOx exhaust gas. However, it has industrial value, and the most widely used method is selective catalytic reduction (SCR). [0003] The existing denitrification catalytic reaction is based on honeycomb (plate or block) catalyst, and the catalyst itself needs to bear a certain structural strength. Let these non-critical points...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/88B01D53/56
CPCB01D53/885B01D53/8631B01D2258/0283
Inventor 徐磊黄震陈广忠沈宾
Owner 高化学(江苏)化工新材料有限责任公司
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