... inch 1/8 inc 3A,4A,5A,10X,13X molecular sieve as catalyst for air separation industryMolecular Sieve 3A is an alkali metal alumina-silicate ... unsaturated hydrocarbons (e.g. ethylene, propylene, butadiene) 2) Cracked Gas Drying3) Drying of natural gas, if COS minimization is essential, or a minimum co ...