Organic waste gas purification system and purification method

Abstract

The invention relates to an organic waste gas purification system comprises a gas inlet device; the gas inlet device is connected with at least more than two zeolite boxes each comprising a box body; the box bodies are each filled with a zeolite filter material; the zeolite boxes are each connected with an exhaust device and a catalytic oxidation device. Three combined processes of zeolite adsorption concentration, hot air oxygen-free desorption and oxygen addition catalytic combustion are adopted for purifying organic waste gas, so the organic waste gas is adsorbed, the saturated-adsorption zeolite filter material is subjected to desorption treatment, and desorbed high-concentration organic waste gas is subjected to catalytic oxidation; the whole circulation purification system is controlled by PLC, the adsorption and desorption time and the catalytic combustion time of the system are controlled according to the concentration of the waste gas of an inlet, the volume of the entering waste gas is calculated, and the time of the zeolite able to adsorb the waste gas is calculated; and the organic waste gas purification system has the advantages of intellectualization, high efficiency and security.

Description

technical field [0001] The invention relates to the field of organic waste gas purification, in particular to an organic waste gas purification system and a purification method. Background technique [0002] Gaseous pollutants emitted by industry are one of the important sources of air pollution. Among them, organic waste gas is a gaseous pollutant with a large amount of emissions, a wide range of pollution, and serious harm to the human body and the environment. It is widely derived from paints and coatings. , lubricating oil and other chemical products coating operations. Due to its huge destructive effect on the human body and the natural environment, it has gradually attracted the attention of the government, enterprises and the public. [0003] At present, the commonly used treatment methods of organic waste gas purification technology include combustion method, chemical oxidation method, chemical absorption method, adsorption method, biological method and so on. Amon...

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Problems solved by technology

[0005] Adsorption corresponds to desorption. Existing organic waste gas purification equipment rarely has adsorption and desorption integrated equipment. There are two types of desorption: heating desorption and catalytic oxidation desorption, but both of these methods make organic waste gas in a state of In an oxygen-containing high-temperature environment, there will be an explosion, which greatly reduces the safety of the equipment.

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