Tertiary treatment device of automobile exhaust and separation method thereof

Abstract

The invention discloses a tertiary treatment device of automobile exhaust and a separation method thereof, belonging to the technical field of atmospheric pollution treatment. The treatment device is composed of a ternary catalytic converter, a primary initial treatment device, a secondary sulfur oxide and nitrogen oxide treatment device and a tertiary carbon dioxide treatment device, wherein the primary initial treatment device is a primary separator which is internally filled with activated carbon particles; the secondary sulfur oxide and nitrogen oxide treatment device mainly comprises a photocatalysis reactor which is internally filled with titanium dioxide; the tertiary carbon dioxide treatment device is a carbon dioxide separator which is internally filled with activated carbon fiber; and the ternary catalytic converter, the primary initial treatment device, the secondary sulfur oxide and nitrogen oxide treatment device and the tertiary carbon dioxide treatment device are sequentially connected in series. After the automobile exhaust passes through the tertiary treatment device, the exhaust separation treatment can be realized, and the emission of harmful gas is reduced from the source.

Description

technical field [0001] The invention belongs to the technical field of air pollution control, and in particular relates to a three-stage separation device for automobile tail gas and a separation method thereof. Background technique [0002] In the 21st century, automobile pollution has increasingly become a global problem. As the number of automobiles increases and the scope of use becomes wider and wider, its negative effects on the world's environment are also increasing, especially harmful to the urban environment, causing respiratory diseases, causing excessively high levels of ozone in the surface air, and aggravating urban pollution. The heat island effect aggravates the deterioration of the urban environment. According to relevant expert statistics, by the beginning of the 21st century, the tail gas emitted by automobiles accounted for 30-60% of air pollution. With the increase of motor vehicles, the tail gas pollution is becoming more and more serious, changing fr...

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Problems solved by technology

[0008] The present invention aims at the deficiency that the efficiency of the existing methods for removing harmful gases in automobile exhaust is not high, and provides a three-stage treatment device for automobile exhaust and its separation method

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