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Product Name: Molecular Sieve 5A
Product Type: NK-5A
Product Manufacturers: NKCHEM
Product Documentation: No Related Documents


Brief

Molecular Sieve 5A is a kind of alkali aluminosilicate and able to adsorb molecules with their critical diameters no more than 5A.


Molecular Sieve 5A Details

Molecular Sieve 5A

Introduction
5A Molecular Sieve  is an alkali alumino silicate,it is the calcium form of the Type A crystal structure. It 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

Size
5A Molecular Sieve 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”.

Application 
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 adsorbed.
2.It is also used for the separation of normal- and iso paraffins. 
3.Production of high purity N2, O2, H2 and inert gases from mixed gas streams.

Specification


Item

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

≥98

≥96

≥96

Bulk density

g/ml

≥0.64

≥0.64

≥0.66

≥0.66

Wear ratio

%

≤0.20

≤0.40

≤0.20

≤0.20

Crushing strength

N

≥30/cm

≥45/cm

≥30/piece

≥60/piece

Static water adsorption

%

≥21.5

≥21.5

≥21.5

≥21.5

Water content, as shipped

%

≤1.5

≤1.5

≤1.5

≤1.5



Regeneration


1.5A Molecular sieve 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.
2.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.
3.The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process. 
 

Packing: 

Optional 1: carton box, the cheapest
Optional 2: carton drum, 25 or 30kg/ drum

Optional 3: .steel drum, 150kg/drum.

Or, according to your request

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