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Guangdong Xintao 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.
Specific Application：
Normal paraffin separating process; Refining SF6 refrigerant for power (removing moisture and hydrocarbon); Oxygen/hydrogen PSA (Pressure Swing Adsorption) process etc.
Summary：
Guangdong Xintao 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 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.
Model | 5A | |||
Color | Light gray | |||
Nominal pore diameter | 5 angstroms | |||
Shape | Sphere | Pellet | ||
Diameter (mm) | 1.7-2.5 (8*12 mesh) | 3.0-5.0 (4*8 mesh) | 1.6 (1/16 inch) | 3.2 (1/8 inch) |
Size ratio up to grade (%) | ≥98 | ≥98 | ≥96 | ≥96 |
Bulk density (g/ml) | ≥0.70 | ≥0.70 | ≥0.68 | ≥0.68 |
Wear ratio (%) | ≤0.20 | ≤0.20 | ≤0.40 | ≤0.40 |
Crushing strength (N) | ≥35/piece | ≥85/piece | ≥30/piece | ≥75/piece |
Static H2O adsorption (%) | ≥21 | ≥21 | ≥21 | ≥21 |
Static Hexane adsorption (%) | ≥12 | ≥12 | ≥12 | ≥12 |
Water content (%) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
Typical Chemical Formula | 0.7CaO . 0.3Na2O . Al2O3 . 2SiO2 . 4.5H2O （SiO2 : Al2O3 ≈2） | |||
Typical Application | 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. | |||
Warranty: | a)By National Standard GB 13550-1992. b)Offer lifetime consultation on problems occurred | |||
Guangdong Xintao 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 -60°C, 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.
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.
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.
