1.PSA Hydrogen Purification 2.In Oxygen Concentrators 3.Production of high purity N2,O2,H2,inert gas Molecular Sieve 5A is an alkali ... , O2, H2 and inert gases from mixed gas streams. Regeneration Molecular sieve Type 5A can be regenerated by either heating in the ... temperature of 250-300°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C, or mercaptan ...