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5a molecular sieve 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.
Specificaton of 5a zeolite | ||||||
Property | Unit | Value | ||||
Bead size | mm | 1.7-2.5 | 3.0-5.0 | |||
Size Quanlification | % | ≥96 | ≥96 | |||
Bulk Density | g/ml | ≥0.66 | ≥0.66 | |||
Wear Ratio | % | ≤0.20 | ≤0.20 | |||
Crush Strength | N | ≥30 | ≥70 | |||
Equilibrium Water Capacity @ 25°C | % | ≥21.5 | ≥21.5 | |||
Package Moisture | % | ≤1.5 | ≤1.5 | |||



1) The various sizes of O2, H2, CO2 and other gas PSA devices.
2) Separation of normal paraffin and isoparaffin.
3) The purification of air, dehydration and carbon dioxide removal.
4) The drying of natural gas, dehydration and desulphurization.




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