Device and method for catalytically degrading VOCs (Volatile Organic Chemicals) by low-temperature plasma in cooperation with ultraviolet light
A low-temperature plasma, catalytic degradation technology, applied in separation methods, chemical instruments and methods, flow control using electrical devices, etc., can solve problems such as poor selectivity, low energy efficiency, by-products, etc. Effects of large reaction zone volumes
Inactive Publication Date: 2020-07-31
苏州金垚淼环境科技有限公司
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Problems solved by technology
In recent years, low-temperature plasma technology has been widely used in the treatment of low-concentration VOCs-containing waste gas and malodorous gas. The overall application effect is good, but its development is still limited.
This treatment technology still has the characteristics of easy formation of by-products, low energy efficiency and poor selectivity.
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[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] The invention is a device for catalytically degrading VOCs with low-temperature plasma and ultraviolet photocatalysis, which is used for treating the VOCs waste gas generated and released in the industrial production process.
[0028] see Figure 1 to Figure 4 , the device of the present invention for low-temperature plasma synergistic ultraviolet photocatalytic degradation of VOCs, which includes a pretreatment purifier 10, a gas flow control mechanism...
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The invention discloses a device and a method for catalytically degrading VOCs (Volatile Organic Chemicals) by cooperation of low-temperature plasma and ultraviolet light, and belongs to the technicalfield of organic waste gas treatment. The device comprises a pretreatment purifier, a gas flow control mechanism and a plasma purifier, which are connected in sequence, the plasma purifier comprisesa plasma reaction tube and an ultraviolet lamp, and the plasma reaction tube comprises a first section tube, a second section tube, a third section tube and a fourth section tube, which are connectedin sequence. The method comprises the following steps: S1, introducing VOCs waste gas into a pretreatment purification chamber, and removing particulate matters in the waste gas by a filter screen; S2, detecting the flow value of the pretreated VOCs waste gas, and judging whether the flow value is higher than a preset flow threshold value or not; and S3, setting an output voltage according to theflow value of the VOCs waste gas, and turning on a high-voltage power supply and an ultraviolet lamp to generate plasma in a plasma tube. The provided device and the method have the characteristics ofhigh automation degree and high VOCs catalytic degradation efficiency.
Description
technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a device and method for low-temperature plasma and ultraviolet photocatalytic degradation of VOCs. Background technique [0002] At present, volatile organic compounds (VOCs) emitted by industry and agriculture are one of the important sources of air pollution, and their hazards are mainly divided into two categories, one is direct hazards, which stimulate the respiratory system of humans and animals and cause disease; the other is Secondary hazards, VOCs can easily trigger a series of photochemical reactions in the air, causing disasters such as smog and photochemical smog, posing a great threat to human health. [0003] Among the existing VOCs treatment and purification methods, the more traditional control methods such as incineration consume a lot of energy and are prone to serious secondary pollution; although the catalytic combustion method is effective for orga...
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Patent Timeline
Login to View More IPC IPC(8): B01D53/86B01D53/44G05D7/06
CPCB01D53/8687G05D7/0623B01D2259/818B01D2259/804B01D2257/708
Inventor 周金堂
Owner 苏州金垚淼环境科技有限公司