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Adsorption principle of activated carbon adsorption equipment

Views: 18     Author: Xicheng EP LTD     Publish Time: 2022-06-17      Origin: Xicheng EP LTD

The working principle of the activated carbon adsorption purification device, the dust-laden gas is powered by the fan, and the negative pressure enters the activated carbon adsorption tower. Due to the unbalanced and unsaturated molecular attraction or chemical force on the solid surface of the activated carbon, when the solid surface and the gas When in contact, gas molecules can be attracted, concentrated and kept on the solid surface, and the pollutants are adsorbed. After the exhaust gas passes through the filter, it enters the dust removal system of the equipment, and the purified gas is discharged up to the standard.

Activated carbon is a black powder, granular or pellet-like amorphous carbon with pores. The main ingredient is carbon, and also contains a small amount of oxygen, hydrogen, sulfur, nitrogen and chlorine. It also has a fine structure like graphite, but the grains are small and the layers are irregularly stacked. It has a large surface area (500-1000㎡/g). It has a strong adsorption capacity and can adsorb gases, liquids or colloidal solids on its surface.

Activated carbon adsorption purification device is an environmental protection equipment designed by using the unique adsorption characteristics of activated carbon. It can also be called activated carbon waste gas purification equipment, activated carbon adsorption tower, activated carbon filter device, etc. Activated carbon adsorption purification device is mainly used to filter and adsorb odor components in various waste gases, such as chemical organic waste gas, paint spray booth waste gas, ink waste gas, welding waste gas, plastic processing waste gas, etc. All gases can be adsorbed and purified by this device.

Scope of application of activated carbon adsorption device

This device is used for the treatment of organic waste gas with large air volume and low concentration. It can treat benzene, ketones, alcohols, alkanes and their mixed organic waste gases. Purification and treatment of harmful waste gas produced by electrical appliances, painting, shoemaking, rubber, plastics, printing and various industrial production workshops.

The activated carbon adsorption tower uses the surface force of the high-performance activated carbon adsorbent itself to attract the adsorbate of the organic waste gas molecules to the surface of the re-adsorbent. Exhaust gas adsorption is more suitable for exhaust gas treatment with large air volume and low concentration, and is suitable for electronics, chemical industry, light industry, rubber, paint, coating, printing, machinery, ships, automobiles, petroleum and other industries.


The working principle of activated carbon adsorption device

Adsorption process: due to the existence of unbalanced and unsaturated molecular attraction or chemical bond force on the solid surface, when the solid surface is in contact with the gas, it can attract gas molecules, make them concentrate and maintain. On solid surfaces, this phenomenon is called adsorption. Using the adsorption capacity of the solid surface, the exhaust gas is brought into contact with the porous solid material on the large surface, and the pollutants in the exhaust gas are adsorbed on the solid surface to separate it from the gas mixture to achieve the purpose of purification. Its essence is a process of adsorption and concentration. The organic solvent is not treated, it is a physical process, and then the catalytic combustion desorption or steam desorption regeneration device is selected according to the different components of the exhaust gas.

Desorption regeneration process of activated carbon adsorption device

Steam is injected from the bottom of the tower, the solvent adsorbed in the activated carbon is evaporated, and then condensed into a liquid through a condenser, which enters the separation cylinder, separates and recovers the organic solvent, and the residual liquid enters the aeration cylinder , discharged after aeration. is a physical process that recovers the solvent and saves costs. Performance characteristics of activated carbon adsorption device: no secondary pollution during operation; less equipment investment and low operating cost; stable performance, can handle a variety of mixed gases at the same time, purification efficiency ≥ 95%; using new activated carbon adsorption material as adsorbent, It has the advantages of low resistance, long life and high purification efficiency.

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