Molecular sieve adsorption principle

Molecular sieve adsorption the gaseous and a liquid substance (adsorbate) immobilized on a solid surface (adsorbent) physical phenomena, the solid (adsorbent) to a large number of micropores having an active surface, the molecules are adsorbed by the surface of the adsorbent mass gravity the effect thus fixed thereto. Depends on the size of gravity: the adsorbent surface structure (pore rate; partial pressure of adsorbate; temperature.
With the adsorption heat is a reversible phenomenon. Similar to the condensation: If you increase the pressure. molecular sieve adsorbent adsorption capacity increases; lowering the temperature, increase the adsorption capacity. Therefore, when the adsorption pressure is raised to make the maximum temperature to a minimum. Desorption, the pressure is reduced to make the minimum, the maximum temperature rise.
The adsorption phase: CO2 absorption by the effect of aluminum oxide is poor, so it is mainly used for adsorbing H2O, and the 13x zeolite molecular sieves is located in the subsequent drying process air containing CO2.
Zeolite has a strong water absorption, therefore, during the adsorption and regeneration will not allow contact of the Molecular sieve adsorption reduces the moisture adsorption capacity of CO2. If an accident happens so that water into a sieve, only special high-temperature regeneration will be able to restore the original adsorption performance.