3A Molecular Sieve is a kind of potassium sodium type aluminosilicate, the crystal aperture is 3Å (0.3nm), can absorb molecules that the critical diameter not more than itself aperture.
1. Oil cracked gas, such as the depth drying of ethylene, propylene, butadiene, acetylene and natural gas;
2. Polar liquids (such as ethanol), liquefied petroleum gas, solvents and other dry.