**Granule 8*12 mesh 5A molecular sieve bead for PSA adsorber**

Chemxin Molecular Sieve type 5A is an alkali alumina 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 adsorption applications.

1. .

	5A

	5 angstroms

	1.7-2.5 (8*12 mesh)	3.0-5.0 (4*8 mesh)	1.6 (1/16 inch)	3.2 (1/8 inch)
	Greater than or equal to 98	Greater than or equal to 98	Greater than or equal to 96	Greater than or equal to 96
	Greater than or equal to 0.70	Greater than or equal to 0.70	Greater than or equal to 0.68	Greater than or equal to 0.68
	Less than or equal to 0.20	Less than or equal to 0.20	Less than or equal to 0.40	Less than or equal to 0.40
	Greater than or equal to 35/piece	Greater than or equal to 85/piece	Greater than or equal to 30/piece	Greater than or equal to 75/piece
Static H2O adsorption (%)	Greater than or equal to 21	Greater than or equal to 21	Greater than or equal to 21	Greater than or equal to 21
	Greater than or equal to 12	Greater than or equal to 12	Greater than or equal to 12	Greater than or equal to 12
	Less than or equal to 1.5	Less than or equal to 1.5	Less than or equal to 1.5	Less than or equal to 1.5
	{{0}}.7CaO . 0.3Na2O . Al2O3 . 2SiO2 . 4.5H2O (SiO2 : Al2O3 ≈2)
	a)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 mini missing COS formation. Light mercaptans are also adsorbed. b) Separation of normal- and iso paraffin's. c) Production of high purity N2, O2, H2 and inert gases from mixed gas streams d) Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.

	a)By National Standard GB 13550-1992.

2.Typical Application:

- Used for the separation of normal- and iso- paraffins (C₄₆

- Used in in PSA hydrogen purification;

- Used in in oxygen concentrators;

Chemxin 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 degree is required. A properly regenerated molecular sieve can give moisture dew points below -100 degree , or mercaptans or CO₂ levels below 2 ppm.The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.

4.
5A - Zeolite 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 1.6mm, 3.2mm.

5. :
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.