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Desheng 4A Molecular Sieve
Chemical Formula:
na20 al203 2 si02 n h20Application Area:
Used in static applications (non-regenerative) for desiccant packages and for drying in insulating glass unitsUsed to dehydrate most fluids both static and dynamic drying Adsorb molecules with a kinetic diameter of less than 0. 4 nm and exclude those larger Used in dynamic applications (regenerative) for drying and purification of natural gas, lpg, air, inert gases and solvents, removal of carbon dioxide, ammonia and methanol from fluid streamsProperties:
nominal pore diameter | 4 angstroms (0. 4 nm] | ||
type of crystal structure | cubic | ||
bulk density | 770 g/l | ||
equilibrium water capacity at 20 °c/55 % r. H. | 22 % wt. | ||
water content (as shipped) | 1. 5 % wt. (max. ) | ||
heat of adsorption (max. ) | 4200 kj/kg water | ||
specific heat (approx. ) | 1. 07 kj/kg °c | ||
bead sizes (nominal) | 2. 5-5 mm | 2-3 mm | 1-2 mm |
4x8 mesh | 8 x 12 mesh | 10 x 18 mesh | |
crush strength | 7 kp | 4 kp | 2 kp |
4A Molecular Sieve Absorbent