Carbon molecular sieves manipulate the characteristics of sieving to achieve the goal of separating oxygen and nitrogen.

When molecular sieves adsorb impurity gases, macropores and mesopores only act as channels, transporting the adsorbed molecules to micropores and sub micropores, which are the true adsorption volumes.

The carbon molecular sieve has a large number of micropores on the outside, which allow small-sized molecules to quickly disperse into the pores while limiting the entry of large-diameter molecules.

Due to the difference in the relative dispersion speed of gas molecules of different sizes, the components of gas inclusions can effectively separate.

Therefore, when making carbon molecular sieves, according to the size of the molecules, the external micropores of the carbon molecular sieve should be dispersed at 0.28-0.38nm.

Within this micropore size range, oxygen can quickly disperse into the pores through the process micropore pores, while nitrogen is difficult to pass through the process micropore pores and reach the oxygen nitrogen separation.

The pore size of micropores is the basis for separating oxygen and nitrogen in carbon molecular sieves.

If the pore size is too large, oxygen and nitrogen molecular sieves can easily enter the micropores and cannot achieve the effect of separation;

And the pore size is too small, so oxygen and nitrogen cannot enter the micropores and cannot have the effect of breaking up.

If any interests, please feel free to contact our sales team. For more details, please visit our Alibaba website: https://chempacking.en.alibaba.com/search/product?SearchText=carbon%20molecular%20sieve