Chemical waste gas treatment device and treatment technology

Abstract

The invention discloses a chemical waste gas treatment device. The device comprises an anti-explosion container, a gas mixer, a plasma reactor and a catalytic combustion reactor which are all connected in sequence. The anti-explosion container comprises a water containing body, a gas inlet pipe stretching into liquid of the containing body and a gas outlet pipe arranged on the top of the containing body. The catalytic combustion reactor is composed of a front segment filled with the CO catalyst and a rear segment filled with a porous medium. The invention further discloses a technology for treating chemical waste gas through the device. The mode that the plasma reactor and the catalytic combustion reactor are combined is adopted for the device, so that the waste gas treatment effect of the whole device is improved; the anti-explosion container is further arranged on the upstream of the gas mixer, air is prevented from flowing back, backdraft flames generated in reaction in the plasma reactor or the catalytic combustion reactor are prevented, and the safety of the device is improved; water-soluble organic pollutants in waste gas are dissolved in water in the anti-explosion container, and thus the waste gas treatment effect of the device can be improved easily.

Description

technical field [0001] The invention relates to the field of purification and removal of chemical waste gas, in particular to a chemical waste gas treatment device and a process for treating chemical waste gas by using the device. Background technique [0002] The chemical industry is an important pillar industry of my country's national economy. However, the waste gas produced in chemical production often contains a variety of pollutants. These pollutants usually have complex physical and chemical properties, which are easy to cause great pollution to the environment and also affect human health. . To this end, my country has introduced strict regulations and norms to control the emission of chemical waste gas. For example, GB16297-1996 "Comprehensive Emission Standard of Air Pollutants", which limits the emission value of 33 kinds of emissions. [0003] In the prior art, there are many methods for treating chemical waste gas, generally including adsorption method, catalyt...

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Problems solved by technology

The device has the advantages of wide application range of organic waste gas concentration, low input energy, high treatment effect, and high system controllability. However, the invention combines porous media materials with plasma, which makes the device difficult to disassemble and replace, and the device can only be degraded. Organic matter in exhaust gas, poor effect on inorganic matter in exhaust gas

[0007] In addition, due to the high safety requirements in chemical production areas, ignition sources are usually strictly prohibited. However, there are combustion reactors in chemical waste gas treatment devices, which often cause deflagration and affect chemical production areas. Therefore, there are likely to be safety hazards in chemical production areas.

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