Advantages of molecular sieves

According to the size and shape of the molecular sieves 3a adsorption of different choices, that is, only those molecules smaller than the molecular sieve adsorption pore. 
For small polar molecular sieve manufacturers and unsaturated molecules having selective adsorption properties, the greater the polarity, the higher the degree of unsaturation, the stronger its selective adsorption. 
With a strong water absorption. Even higher at lower temperatures, a larger space velocity and water content, there is rather high water absorption capacity.