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.XINGFENG Molecular Sieve type 5A is 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.
Typical Chemical Formula
0.7 CaO . 0.3 Na2O . Al2O3 . 2 SiO2 . 4.5H2O
SiO2 : Al2O3 ≈2
1) 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
2) It is also used for the separation of normal- and iso
3) Production of high purity N2, O2, H2 and inert gases from mixed
Size ratio up to grade
Static water adsorption
Water content, as shipped
XINGFENG molecular sieve Type 5A 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.
5A - Zeolites are available in beads of 1-2 mm, (10x18 mesh)
2-3 mm, (8x12 mesh) , 2.5-5 mm, (4x8 mesh) and as powder, and
in pellet 1.6”, 3.2”.
To avoid damp and pre-adsorption of organic before running, or must
to be reactivated.
Contact person:Ms.Joy Zhang