Activated zeolite powders Sieved using carbon molecular sieves to achieve

Sieved using carbon molecular sieves to achieve the separation characteristics of oxygen, nitrogen purposes. Molecular sieve adsorption of impurities in the gas, only macropores 4a zeolite molecular sieves and mesopores channels play a role in the delivery of molecules to be adsorbed in the micropores and sub-micropores, is the volume of the micropores and sub-micropores that really Adsorption. As shown in the previous figure, the carbon molecular sieves comprise a large number of internal pores, the pores allowing the rapid kinetics of diffusion of small molecules into the hole size, while limiting the entry of large diameter molecules. Activated zeolite powders Due to the relative sizes of the diffusion rate of the gas molecules are different, the components of the gas mixture can be effectively separated.  dehydration of natural gas .Therefore, when producing a carbon molecular sieve, the molecular size depending on the size of the carbon molecular sieves should be the internal pore distribution 0.28 ~ 0.38nm. The pore size within the range, oxygen can quickly diffuse into the hole opening through the porous, and the nitrogen through the porous opening is difficult to achieve an oxygen, nitrogen separation. Microporous carbon molecular sieve pore size separation of oxygen, nitrogen base, if the pore size is too large, oxygen, nitrogen, into the pores of the molecular sieve is very easy, but there is no separation of the role; pore size is too small, oxygen, nitrogen can not enter micropores, but there is no separation.