natural gas adsorbent is a cubic lattice silicon aluminate compound. The microporous structure of the molecular sieve is uniform, and its cavity diameter size uniform, can the cavity is smaller than the diameter of the molecular adsorption to the interior of the pore space, and the polar molecules and unsaturated molecules have preferential adsorption ability, thus can bring a different polarity degree, degree of saturation is different, different molecular size and the boiling point of different molecular separation, which have the function of the "screening" molecules, therefore calls the molecular sieve. Because the molecular sieve separation has high adsorption capacity, strong thermal stability and other advantages of adsorbent is not makes the molecular sieve to obtain a wide range of applications.
In the field of biological macromolecules, common have a bio - preinstalled rad SEC molecular sieve column.
American scientists have found that by adjusting the temperature, can precisely control holes the size of a titanium silicate material, to create sophisticated new molecular sieve. Some crystal materials have large internal uniform pores, size than small molecules can pass through the hole, and not through the large molecules, so you can have the effect of separation of different molecules, this kind of material is known as molecular sieve.
