TitleProduct

3A Desiccant Molecular Sieve for Dehydration of Cracked Gas and Olefins

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    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Jiangxi

  • Validity to:

    Long-term effective

  • Last update:

    2017-12-08 03:01

  • Browse the number:

    185

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Company Profile

Pingxiang Bestn Chemical Packing Co., Ltd.

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Contact:Mrs. Jenny Yang(Mr.)  

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Telephone:

Phone:

Area:Jiangxi

Address:Jiangxi

Website: http://bestnpacking.sh-taxing.com/

PRODUCT DETAILS
Molecular Sieve type 3A 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

Technical Parameter
 
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 ≥98 ≥98
Bulk density g/ml ≥0.65 ≥0.65 ≥0.70 ≥0.70
Wear ratio % ≤0.20 ≤0.25 ≤0.10 ≤0.10
Crushing strength N ≥45/cm ≥60/cm ≥30/p ≥70/p
Static wateadsorption % ≥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
 
Typical Application
Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien)
Cracked Gas Drying
Drying of natural gas, if COS minimization is essential, or a minimum coadsorption of hydrocarbons is required.
Drying of highly polar compounds, such as methanol and ethanol
Drying of liquid alcohol
Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
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.