Compared with other adsorbents, molecular sieve has the following advantages:

1. Strong adsorption selectivity: this is because the pore size of molecular sieve is regular and uniform, and it is also an ionic adsorbent. Therefore, it can selectively adsorb according to the size and polarity of molecules. If it can effectively remove ethylene and propylene from saturated hydrocarbons, it can also effectively remove acetylene from ethylene, which is determined by its strong polarity.

2. Strong adsorption capacity. Even if the composition concentration of the gas is very low, it still has the adsorption capacity of.

3. At higher temperatures, the adsorption capacity of molecular sieves is still large, while other adsorbents are greatly affected by temperature, so the adsorption capacity of molecular sieves is large at the same temperature. It is precisely because of the above advantages that molecular sieve becomes a very excellent adsorbent, which is widely used in the production of basic organic chemical and petrochemical industries. In the treatment of harmful gases, it is also commonly used for the purification of SO2, NOx, CO, CO2, NH3, CCl4, water vapor and gaseous hydrocarbon exhaust gases;

4. It can be regenerated at high temperature, with high regeneration efficiency and high safety.

Molded molecular sieve will become the mainstream adsorbent for waste gas treatment. The technology of molecular sieve as carrier has been widely used abroad. Molecular sieves can be designed and applied according to different pollutant concentrations and particle sizes. After adsorption and concentration by molecular sieves, the concentration times of pollutants can reach several to dozens of times. The concentrated waste gas can be condensed and recovered or burned as required.