An adsorption tower is a device used for gas separation and purification, which separates the target gas from a gas mixture by utilizing the adsorption action of adsorbents. Typically, an adsorption tower consists of a tower body and internal adsorbents, with heaters and coolers mounted on the exterior. Inside the tower, the adsorbents are filled in an adsorption bed, equipped with inlet and outlet ports. Upon entering the adsorption tower, the target gas is adsorbed by the adsorbents, while other gases are discharged from the tower outlet. Heaters and coolers can heat and cool the adsorbents to achieve a cyclic adsorption and desorption process. The advantages of the adsorption tower include simple operation, effective separation, and wide applicability, making it widely used in industrial gas separation, waste gas treatment, air purification, and other fields. The design of the adsorption tower must consider factors such as the properties, flow rate, temperature, and pressure of the gas mixture, as well as the selection and filling of the adsorbents.