3A Molecular Sieve For Ethanol Dehydration

Molecular sieves are aluminosilicate compounds with a cubic lattice. It has a uniform microporous structure, and molecular sieves have uniform pore diameters. These pores can adsorb molecules smaller than their diameters into the interior of the pore cavity, and have a preferential adsorption capacity for polar molecules and unsaturated molecules. Molecules with different degrees of solubility, different degrees of saturation, different molecular sizes and different boiling points are separated, that is, they have the function of "sieving" molecules, so they are called molecular sieves. For the ethanol-water system, since the critical molecular diameters of water and ethanol are 2.7 angstroms and 4.7 angstroms respectively, water molecules can enter the interior of the 3 angstrom molecular sieve and be adsorbed on the molecular sieve by the strong polar attraction of the molecular sieve to water. inside, while ethanol molecules are blocked outside, so as to realize the selective adsorption and separation of water and ethanol.

The specific uses are: deep drying of petroleum cracking gas, ethylene, propylene, butadiene, acetylene (que) and other gases, it can be used for drying of liquids (such as ethanol, acetone), and it can also be used for drying in medical, food and other industries. agent. . In addition, it is also widely used in the insulating glass industry.

Customer Case

23 Tons of 3A Molecular Sieve Used in Ethanol Distillation and Dehydration

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