3A Molecular Sieve for Natural Gas Drying

Product Specifications

Prod Model:	3A
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Size:	1.7-2.5mm, 3-5mm
Certificate:	ISO9001: 2000
Type:	3A
Shape:	Beads
Sorbent:	Molecular Sieves
Desiccant:	Chemical Desiccant
Kind:	Molecular Sieve Desiccant

Product Description

3A Molecular Sieve is an alkali metal alumino-silicate; It is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; And this maximizes lifetime when dehydrating such molecules.

Typical Chemical Formula
0.4K2O 0.6Na2O Al2O3 2. OSiO2 4.5H2O
SiO2: Al2O3 ≈ 2

Typical Application
1) Drying of unsaturated hydrocarbons (e. G. Ethylene, propylene, butadien)
2) Cracked Gas Drying
3) Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required.
4) Drying of highly polar compounds, such as methanol and ethanol
5) Drying of liquid alcohol
6) Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
7) Drying of refrigerants

Regeneration
Molecular sieve Type 3A 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 3A molecular sieve, a temperature of 200-230° C is required. A properly regenerated molecular sieve can give moisture dew points below -100° C.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.

Size
3A - 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".

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

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	≥0.68	≥0.68	≥0.68	≥0.68
Wear ratio	%	≤0.20	≤0.25	≤0.10	≤0.10
Crushing strength	N	≥45/cm	≥60/cm	≥30/piece	≥70/piece
Static water adsorption	%	≥20	≥20	≥20	≥20
Ethylene adsorption	%	≤3.0	≤3.0	≤3.0	≤3.0
Water content, as shipped	%	≤1.5	≤1.5	≤1.5	≤1.5