... factors for revival are temperature and pressure. Introduction of Molecular Sieve 4A Molecular Sieve type 4A (Angstrom) is an alkali alumino silicate ... in sequence of adsorption rate, argon, krypton, xenon, ammonia, carbon monoxide, C2H4, C2H2, CH3OH, C2H5OH, CH3CN2, CS2, CH3CL, ... CH3Br, and carbon dioxide.Deep drying of air, natural gas, alkane and refrigerant ...