Low-temperature plasma catalytic degradation malodorous gas treatment equipment and malodorous gas treatment method

Abstract

The invention relates to low-temperature plasma catalytic degradation malodorous gas treatment equipment and a malodorous gas treatment method. The malodorous gas treatment equipment comprises a box body provided with a gas inlet and a gas outlet; the plasma catalytic degradation area is arranged in the box body and communicated with the air inlet, a plasma generator is arranged in the plasma catalytic degradation area, and the inner wall of the box body in the area where the plasma catalytic degradation area is located is coated with a transition metal oxide coating; and the activated carbon treatment assembly is arranged in the box body, separates the gas outlet from the plasma catalytic degradation area, is filled with a carbon-based catalyst, and is used for synergistically catalytically degrading the malodorous gas in combination with ozone and plasma. According to the malodorous gas treatment equipment, low-temperature plasma and excessive ozone generated in the ionization process of the low-temperature plasma are combined with transition metal oxide and a carbon-based catalyst to catalyze and degrade malodorous gas, the treatment efficiency is high, the treatment effect is good, ozone generated when the plasma generator works is fully utilized, and the energy consumption is reduced. And secondary pollution caused by ozone is greatly reduced.

Description

technical field [0001] The present application relates to the field of malodorous gas treatment equipment, in particular to a low-temperature plasma catalytic degradation malodorous gas treatment equipment and a malodorous gas treatment method. Background technique [0002] Plasma refers to an aggregate with equal positive and negative charges and an ionization degree greater than 0.1%. It is composed of a large number of particles such as ions, electrons, atoms, molecules, and free radicals. Four physical forms. Plasma can be divided into low-temperature plasma and high-temperature plasma. The ionization degree of high-temperature plasma is close to 100%, which often requires ultra-high temperature to achieve, so low-temperature plasma is more used. [0003] In recent years, low-temperature plasma catalysis technology is one of the effective methods to deal with malodorous gases. Plasma, high-energy electrons, and excited state atoms generated by corona discharge, dielectr...

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Problems solved by technology

[0005] However, no matter whether low-temperature plasma is used for co-catalysis with non-supported catalysts or with supported carbon-based catalysts, the degradation treatment effect on malodorous gases is still limited, and the problem of secondary pollution caused by by-product ozone cannot be improved.

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