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Homogeneous reaction device for removing volatile organic pollutants

A volatile organic and pollutant technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of reducing catalytic efficiency, affecting the use of reactors, etc., to improve work reliability, prolong service life, The effect of improving catalytic efficiency

Pending Publication Date: 2022-07-22
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual application of the catalyst, problems such as temperature runaway and local wear seriously affect the use of the reactor, resulting in a decrease in catalytic efficiency

Method used

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  • Homogeneous reaction device for removing volatile organic pollutants
  • Homogeneous reaction device for removing volatile organic pollutants
  • Homogeneous reaction device for removing volatile organic pollutants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] The total length of the reaction device is 1266mm, the inner diameter of the cylindrical tube 1 is 80mm, the inner diameter of the gas inlet 3 is 20mm, and a 200mm monolithic catalyst 104 is arranged at 533mm; It is 223mm, and the angle formed by the hypotenuse of the inlet section of the reaction device and the horizontal direction is 9°, the outlet section is the reducer 6, and the length and angle are consistent with the gradually expanding pipe 5. The specifications of the optimized element 2 are: narrow arm plate 203 The width d=5mm, the width of the wide arm plate 202 is 5mm, and the thickness l=10mm.

[0065] The gas velocity of the gas inlet 3 is 14m / s, and the optimized element 2 is placed 26cm in front of the catalytic section 103; the gas velocity area weighted uniformity index can reach 0.9581, the standard deviation is as small as 0.1252, and there is no tail-end backflow, near the optimized element 2 Turbulent kinetic energy is 3.26m 2 / s 2 .

[0066] T...

Embodiment 2

[0069] The total length of the reaction device is 1266mm, the inner diameter of the cylindrical tube 1 is 80mm, the inner diameter of the gas inlet 3 is 20mm, and a 200mm monolithic catalyst 104 is arranged at 533mm; It is 223mm, and the angle formed by the hypotenuse of the inlet section of the reaction device and the horizontal direction is 9°, the outlet section is the reducer 6, and the length and angle are consistent with the gradually expanding pipe 5. The specifications of the optimized element 2 are: narrow arm plate 203 The width d=5mm, the width of the wide arm plate 202 is 10mm, and the thickness l=15mm.

[0070] The gas velocity of the gas inlet 3 is 14m / s, and the optimized element 2 is placed 26 cm in front of the catalytic section 103; the weighted uniformity index of the gas velocity area can reach 0.9621, and the standard deviation is as small as 0.123. Kinetic energy is 3.62m 2 / s 2 .

[0071] The gas velocity of the gas inlet 3 is 8m / s, and the optimized ...

Embodiment 3

[0074] The total length of the reaction device is 1266mm, the inner diameter of the cylindrical tube 1 is 80mm, the inner diameter of the gas inlet 3 is 20mm, and a 200mm monolithic catalyst 104 is arranged at 533mm; It is 223mm, and the angle formed by the hypotenuse of the inlet section of the reaction device and the horizontal direction is 9°, the outlet section is the reducer 6, and the length and angle are consistent with the gradually expanding pipe 5. The specifications of the optimized element 2 are: narrow arm plate 203 The width d=2.5mm, the width of the wide arm plate 202 is 5mm, and the thickness l=10mm.

[0075] The gas velocity of the gas inlet 3 is 14m / s, and the optimized element 2 is placed 26 cm in front of the catalytic section 103; the gas velocity area weighted uniformity index can reach 0.9562, the standard deviation is as small as 0.1291, and there is no tail-end backflow, near the optimized element 2 Turbulent kinetic energy is 3.01m 2 / s 2 .

[0076...

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Abstract

The invention discloses a homogeneous reaction device for removing volatile organic pollutants, which comprises a cylindrical tube and an optimization element, the first end of the cylindrical tube is communicated with a gas inlet, the second end of the cylindrical tube is communicated with a gas outlet, the cylindrical tube comprises a catalytic section, a catalyst is arranged in the catalytic section, and the optimization element is positioned between the first end and the catalytic section. Waste gas enters the reaction device through the gas inlet and enters the cylindrical pipe through the first end, and after the waste gas passes through the optimization element in the cylindrical pipe, the uniformity of the gas entering the subsequent catalytic section is ensured, so that the waste gas fully reacts with a catalyst in the catalytic section, and the catalytic efficiency is improved; and the gas treated by the catalyst is led out through the second end and the gas outlet, so that the catalytic efficiency is improved, the damage to the catalyst and the reaction device caused by a large amount of local heat release can be effectively avoided, and the service life of equipment is prolonged. The distance between the optimization element and the catalysis section can be adjusted, and the position of the optimization element can be conveniently adjusted according to working conditions.

Description

technical field [0001] The invention relates to the technical field of volatile organic matter treatment, in particular to a homogeneous reaction device for removing volatile organic pollutants. Background technique [0002] Volatile organic compounds (VOCs) refer to organic compounds that participate in atmospheric photochemical reactions. They are important precursors to various air pollutions such as urban haze and photochemical smog. They participate in the formation of ozone and secondary aerosols in the atmospheric environment. It has an important impact on regional atmospheric ozone pollution and PM2.5 pollution. VOCs mainly come from processes such as coal chemical industry, petrochemical industry, fuel paint manufacturing, solvent manufacturing and use. Most VOCs have unpleasant special odors, and have toxic, irritating, teratogenic and carcinogenic effects. Their effects on human health are mainly to stimulate the eyes and respiratory tract, make the skin allergic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/86B01D53/88B01D53/44
CPCB01D53/8687B01D53/885B01D2257/708
Inventor 梁文俊鞠浩琳石秀娟李想刘佳
Owner BEIJING UNIV OF TECH