A voc gas electrosorption-catalytic degradation device and process

Abstract

The invention belongs to the field of indoor gas purification, and in particular relates to a VOC gas electro-adsorption-catalytic degradation device and process. The device includes a fan, which is used to create a vacuum and introduce VOC gas into the device; the main reactor includes functional carbon materials, anodes and cathodes, and the three cooperate to form a VOC adsorption-electrocatalytic reaction zone, and VOC gas passes through the Adsorption-electrocatalytic reaction occurs in the area for degradation; humidifier is used to provide water vapor, which acts as a conductive medium for the electrocatalytic process. The device can make VOC gas be adsorbed and catalytically degraded in a short time, achieving the effect of efficiently degrading VOC gas. Moreover, the water vapor created by the humidifier provides a good medium environment for the electrocatalytic process without adding a large amount of electrolyte , to avoid frequent replacement of the electrolyte.

Description

technical field [0001] The invention belongs to the field of indoor gas purification, and in particular relates to a VOC gas electric adsorption-catalytic degradation device and process. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] VOC gas is a volatile organic gas molecule, which is a common air pollutant in industrial and domestic life. Common VOC gases such as formaldehyde, toluene, propylene glycol, etc. will cause harm to the human body. When the concentration of VOC gases in the air is high, it will cause symptoms such as nose and throat irritation, headache, syncope and even shock. Long-term exposure to this environment may cause Malignant diseases such as canc...

AI Technical Summary

Problems solved by technology

There are many ways to catalyze the degradation of VOC gas, including photocatalysis, low-temperature plasma, electrocatalysis, etc. For example, the prior art discloses an air purifier with adsorption and filtration dual-function electrocatalysis to remove formaldehyde, which is carried out under electrocatalysis. Although the adsorption of formaldehyde can effectively enrich the formaldehyde in the air and remove it through electrocatalytic oxidation to achieve efficient air purification, the inventors found that the treatment effect of this type of device is not ideal in the environment of low VOC gas concentration. Moreover, there is an electrolyte environment, and as the purification time prolongs, the electrolyte needs to be replaced frequently, which brings inconvenience to use

It can be seen that the current catalytic degradation technology has limited degradation effect and is inconvenient to apply, so it is difficult to widely promote it to ordinary families.

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