... capacity 3)Static dehydration 4)ISOpass 4A Molecular SieveA common 4A molecular sieve application is dehydrating compressed air.In a ... size for 4A molecular sieve is 4A. It is mainly used to adsorb water, methanol, ethanol, sulfureted hydrogen, carbon dioxide, ethylene ... dusting, migration / attrition and longer desiccant life.4A Molecular Sieve Typical applications:1) Deep drying of air, natural gas ...