Introduction 5A Molecular Sieve is an alkali alumino silicate;5A Molecular sieve is the calcium form of the Type A crystal structure. 5A Molecular Sieve has an effective pore opening of 5 angstroms (0.5 nm). 5A Molecular sieve will adsorb molecules with a kinetic diameter of less than 5 Angstrom and exclude those larger. 5A Molecular Sieve 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. Typical Chemical Formula 0.7 CaO . 0.3 Na2O . Al2O3 . 2 SiO2 . 4.5H2O Application The strong ionic forces of the divalent calcium ion makes it an excellent adsorbent to remove water, CO2, H2S from sour natural gas streams, while minimising COS formation. Light mercaptans are also adsorbed. It is also used for the separation of normal- and iso paraffins. Production of high purity N2, O2, H2 and inert gases from mixed gas streams. Technical Parameter
Unit
Technical data
Shape
Pellet
Sphere
Diameter
mm
1.5-1.7
3.0-3.3
1.7-2.5
3.0-5.0
Size ratio up to grade
%
≥98
≥96
Bulk density
g/ml
≥0.64
≥0.66
Wear ratio
≤0.20
≤0.40
Crushing strength
N
≥30/cm
≥45/cm
≥30/piece
≥60/piece
Static water adsorption
≥21.5
Water content, as shipped
≤1.5