Industrial organic waste gas catalytic degradation catalyst cooperated with low-temperature plasma, and preparation method and application of catalyst

Abstract

The invention discloses an industrial organic waste gas catalytic degradation catalyst cooperated with low-temperature plasma, and a preparation method and application of the catalyst. The catalyst comprises a carrier, a main active ingredient and a catalyst promotion ingredient, wherein the carrier is SiC; the main active ingredient is a mixture of at least one kind of noble metal and at least one of transition metal oxide or at least one kind of noble metal or at least one kind of transition metal oxide; the catalyst promotion ingredient is a mixture of at least one kind of rare-earth oxide and alkaline earth oxide or at least one kind of rare-earth oxide or at least one kind of alkaline earth oxide; the main active ingredient accounts for 0.1 to 5 percent of the total mass of the catalyst; the catalyst promotion ingredient accounts for 0.1 to 5 percent of the total mass of the catalyst. The catalyst provided by the invention has the advantages that the preparation is simple; the price is low; the service life is long; the performance is good; the catalyst can be used for high-efficiency removal of industrial VOCs waste gas at room temperature after being combined with plasma; in addition, the discharge of low byproducts is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a catalyst for coordinating low-temperature plasma catalytic degradation of industrial organic waste gas and its preparation method and application. Background technique [0002] In recent years, large-scale severe haze has occurred in many cities in my country. The essence is that the concentration of atmospheric aerosols is too high, and volatile organic pollutants (VOCs) are important precursors. In addition, VOCs can also cause atmospheric problems such as photochemical smog, ozone layer destruction, and global warming, and are toxic to humans and animals. Industrial sources, such as organic chemicals, petrochemicals, coal chemicals, pharmaceuticals, printing, spraying, etc., are the main sources of emissions, with an annual output of several million tons. [0003] At present, the methods for treating industrial volatile organic compounds mainly inclu...

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Problems solved by technology

[0006] In summary, low-temperature plasma technology coupled with one-stage in-situ catalysis has a good effect, but the problem of by-products and deep degradation of VOCs needs to be solved