Microwave assisted ozone rapid catalytic decomposition device and decomposition method thereof

A technology of catalytic decomposition and ozone catalysis, applied in the field of air purification, can solve the problems of unsustainable degradation, catalyst poisoning, high energy consumption, etc., and achieve the effect of strengthening the internal microwave effect, heating quickly and evenly, and solving high energy consumption

Active Publication Date: 2018-09-07
深圳科莱环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Burn the gas to 400°C to cause thermal decomposition or combustion reaction of ozone, which is expensive and consumes a lot of energy
The catalytic decomposition method can decompose ozone at a lower temperature without consuming external energy. However, after the catalyst has been operated in high humidity for a long time, the catalyst will be poisoned and deactivated. The catalyst needs to be replaced or regenerated in situ, and cannot be continuously degraded

Method used

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  • Microwave assisted ozone rapid catalytic decomposition device and decomposition method thereof

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Effect test

Embodiment 1

[0037] Such as figure 1 As shown, a microwave-assisted ozone rapid catalytic decomposition device includes an air inlet 1, a damper 2, a microwave ozone catalytic decomposer, a blower fan 8 and an air outlet 9 in turn, wherein the microwave ozone catalytic decomposer is changed from the air intake end to The microwave shielding net 3, the modified microwave shielding net 7 at the gas outlet and the microwave cavity 4 are composed of a microwave generating device and a granular ozone catalytic decomposition material 6 filled in the microwave cavity, and the filling rate is 15%. , wherein the modified microwave shielding net is a metal honeycomb net coated with an ozone-decomposing material, the aperture of the metal honeycomb net is 3mm, the thickness is 2.5mm, and the coating amount of the ozone-decomposing material is 20g / L.

Embodiment 2

[0039] Such as figure 1 As shown, a microwave-assisted ozone rapid catalytic decomposition device includes an air inlet 1, a damper 2, a microwave ozone catalytic decomposer, a blower fan 8 and an air outlet 9 in turn, wherein the microwave ozone catalytic decomposer is changed from the air intake end to The microwave shielding net 3, the modified microwave shielding net 7 at the gas outlet and the microwave cavity 4, the microwave cavity includes a microwave generating device and a honeycomb ozone catalytic decomposition material 6 filled in the microwave cavity, and the filling rate is 90%. , wherein the modified microwave shielding net is a metal honeycomb net coated with an ozone-decomposing material, the aperture of the metal honeycomb net is 1mm, the thickness is 25mm, and the coating amount of the ozone-decomposing material is 80g / L.

Embodiment 3

[0041] Ozone waste gas parameters: air volume is 100m 3 / h, humidity 30%~50%, exhaust gas temperature is normal temperature, ozone concentration is 40~50ppm, catalyst volume space velocity is 45,000h -1 .

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Abstract

The invention discloses a microwave assisted ozone rapid catalytic decomposition device and a decomposition method thereof. The device sequentially comprises a gas inlet, a wind valve, a microwave ozone catalytic decomposer, a fan and a gas outlet, wherein the microwave ozone catalytic decomposer is composed of a modification microwave shielding screen at a gas inlet end, a modification microwaveshielding screen at a gas outlet end, and a microwave cavity, and the microwave cavity comprises a microwave generator and an ozone catalytic decomposition material filled in the microwave cavity, wherein every modification microwave shielding screen is a metal honeycomb screen coated with the ozone catalytic decomposition material. The device efficiently purifies high-humidity and high-air speedozone waste gas under the coaction of microwave radiation, high-temperature thermal decomposition and catalytic decomposition, and the microwaves also can realize the in situ regeneration of the ozonedecomposition material and the continuous decomposition of the ozone waste gas. The device and the method allow the ozone waste gas having different humidity ranges to be purified in different modes,are simple and efficient to operate, and can be widely applied to the field of industrial waste gas.

Description

technical field [0001] The invention relates to the technical field of air purification, in particular to an ozone rapid catalytic decomposition device and decomposition method assisted by microwaves. Background technique [0002] With the rapid development of my country's economy and industry, the atmospheric environment has been severely damaged, and the air pollution characterized by atmospheric "smog" and "ozone" has become increasingly severe. It is a serious environmental problem faced by many cities and is also a major global one of the health risks. Among the gaseous pollutants, the problem of ozone is becoming more and more prominent. According to the report "Atmospheric China 2015: China's Air Pollution Prevention and Control Process" released by the international environmental protection organization Asia Clean Air Center, the concentration of ozone and the number of days as the primary pollutant have both increased, and ozone pollution has a tendency to intensify...

Claims

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Application Information

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IPC IPC(8): B01D53/86B01D53/66B01D53/74B01J23/889B01J27/224B01J29/16
CPCB01D53/66B01D53/74B01D53/8675B01J23/8892B01J27/224B01J29/166B01D2258/06B01D2259/806Y02A50/20
Inventor 叶信国
Owner 深圳科莱环保科技有限公司
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