Zeolite bead

Specifications Zeolite 3A molecular sieve 1. Stable moisture-absorption speed 2.High quality with low price 3.strong absor Specifications

Zeolite 3A molecular sieve 1. Stable moisture-absorption speed 2.High quality with low price 3.strong absorbent

What is NKCHEM Molecular Sieve 3A

Introductionmolecular sieve type 3A is a kind of alkali aluminosilicate and able to absorb moleculAR with their critical diameters no more than 3A. 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 Formula0.45 K2O. 0.55 Na2O. Al2O3. 2 SiO2. 4.5H2OTechnical Parameter

Item	Unit	Specification
Diameter	mm	0.5-0.9	1.0-1.5	1.5-2.0
Bulk density	g/ml	≥0.68	≥0.68	≥0.68
Size ratio up to grade		≥98.0	≥98.0	≥98.0
Water adsorption capacity (Effective)	(RH60, 25)	≥18	≥18	≥18
	(RH20, 25)	≥15	≥15	≥15
Delta T value	(25g sieves / 25ml H2O)	≥50	≥45	≥45
	(10g sieves / 10ml H2O)	≥38	≥35	≥35
Nitrogen adsorption	ml/g	≤1.0	≤1.0	≤1.0
Dew point		≤-60	≤-60	≤-60
Dust drops	unit	≤15	≤12	≤12
Ignition loss	(950)	≤2	≤2	≤2

Typical Application Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadiene) Cracked Gas DryingDrying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required. Drying of highly polar compounds, such as methanol and ethanolDrying of liquid alcohol Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled. Drying of refrigerantsRegenerationMolecular 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”.

 

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

 

Zeolite bead