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5A PSA Molecular Sieve
5A Molecular Sieveis an alkali alumino silicate; it is the calcium form of the Type A crystal structure. Type 5A has an effective pore opening of 5 angstroms (0.5 nm). It will adsorb molecules with a kinetic diameter of less than 5 Angstrom and exclude those larger.
It is especially suitable for PSA adsorber applications where it may be used for the separation of normal- and iso- paraffins (C4 to C6 species), in PSA hydrogen purification and in oxygen concentrators.
|The Test Items||Unit||Sphere|
|Static Water Absorption||≥%||25||25|
|Package Moisture（ 575℃, 2h）||＜%||1||1|
|N2 Absorption (0.1MPa, 25℃ )||＞g/ml||11.3||11.3|
|Static CO2 Absorption||≥%||18||18|
Molecular sieve Type 5A PSA can be regenerated by either heating in the case of thermal swing processes; or by lowering the pressure in the case of pressure swing processes.
To remove moisture from a 5A molecular sieve, a temperature of 250-300°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C, or mercaptan or CO2 levels below 2 ppmv.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.
It's used in LPG Hydrocarbons Purification, Dewaxing of Petroleum, PSA Hydrogen Generation, and Dehydration & Purification.
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