Adsorption Process: Due to the presence of unbalanced and unsaturated molecular attractions or chemical bond forces on the surface of the solid, when the solid surface comes into contact with a gas, it can attract gas molecules, causing them to concentrate and remain on the solid surface—a phenomenon known as adsorption. By utilizing the adsorption capacity of the solid surface, the exhaust gas is brought into contact with a porous solid material with a large surface area. The pollutants in the exhaust gas are adsorbed onto the solid surface, thereby separating them from the gas mixture, achieving the goal of purification.

Activated Carbon Introduction: Activated carbon is an amorphous, porous carbon in black powder, granular, or pellet form. Its main component is carbon, with trace amounts of oxygen, hydrogen, sulfur, nitrogen, and chlorine. It also has a fine structure similar to graphite, but with smaller crystal grains and irregularly stacked layers. It has a large surface area (500-1000 m²/g). It has adsorption capabilities, and substances that are more easily adsorbed onto its surface, such as gases, liquids, or colloids, are more adsorbed. Higher pressure, lower temperature, and higher concentration lead to greater adsorption, while reducing pressure and increasing temperature is beneficial for desorption.

Activated carbon is commonly used for gas adsorption, separation and purification, solvent recovery, sugar syrup, oil, and glycerin decolorization, odor removal in drinking water or refrigerators, filter agent for gas masks, and can also be used as a catalyst or as a sieve for metal salt catalysts. Exhaust gases are powered by a fan and enter the activated carbon adsorption box under positive or negative pressure. Due to the presence of unbalanced and unsaturated molecular attractions or chemical bonds on the solid surface of activated carbon, when this solid surface comes into contact with the gas, it can attract gas molecules, causing them to concentrate and remain on the solid surface, thereby adsorbing pollutants. After passing through a filter, the exhaust gas enters the activated carbon adsorption tower, where the gas is purified and released into the air in compliance with high-altitude emission standards.