Activated carbon desorption system for automobile exhaust gas treatment

Abstract

The invention discloses an activated carbon desorption system for automobile exhaust gas treatment. The activated carbon desorption system comprises an adsorption device and a desorption device, wherein the adsorption device comprises a gas inlet and a gas outlet, an activated carbon layer is arranged in the middle of the adsorption device, and a feed bin is arranged above the activated carbon layer; the desorption device is communicated with the adsorption device, and a conveying pipeline used for conveying saturated activated carbon in the adsorption device into the desorption device is arranged between the desorption device and the adsorption device; a water filling nozzle and a discharge opening are formed in the desorption device, and a heating device used for evaporating liquid water to water vapor is arranged in the desorption device; a vacuum pump and a condensing device are arranged on the desorption device; one end of a lifting drying device is connected with the discharge opening of the desorption device, and the other end of the lifting drying device is communicated with the feed bin. The system can thoroughly desorb activated carbon, the adsorption rate of activated carbon in the recycling process is increased, and the energy consumption and the operating cost are reduced.

Description

technical field [0001] The invention relates to an automobile tail gas purification system, in particular to an activated carbon desorption system for automobile tail gas treatment. Background technique [0002] Automobile exhaust contains hundreds of different compounds, including solid suspended particles, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, lead, and sulfur oxides. If the automobile exhaust is directly discharged into the atmosphere, it will cause serious pollution to the atmospheric environment and directly endanger human health. Automobile exhaust has been listed as one of the serious environmental pollution problems in the world, and the purification method of automobile exhaust has become a common practice in society. Concerns. The purification system is usually installed in the automobile exhaust system. The common way is to use activated carbon to adsorb the pollutants in the automobile exhaust. However, when the general activated carbon...

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Problems solved by technology

Using this method will inevitably cause the problem of mixing the flushing agent and the adsorbed components, and they need to be separated by other methods, so this method has the inconvenience of multiple separations

In the prior art, the recycling of activated carbon is realized by directly heating and desorbing the activated carbon through desorption by heating up, but the desorption of the single direct heating method is not complete, which leads to the decrease of the adsorption rate of activated carbon. The adsorption effect of activated carbon is not ideal, and the single water vapor heating desorption consumes a lot of energy, and the operating cost is high

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