Zeolite 4A Molecular Sieve

US $1500

Min. Order:0.025 Tons
Keywords:zeolite 4A , molecular sieve 4a , 4A Molecular Sieve
Origin:Made In China
Brand:NKCHEM

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Member Information

Company NamePingxiang Naike Chemical Industry Equipment Packin
Country/Region:Jiang Xi - China
Business Nature:Manufacturer
Contact:Lainey Liu(Ms)Sales Manager
Phone:18797996383
Last Online:31 Jul, 2018
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Product Description

Zeolite 4A Molecular Sieve

Chemical Formula: Na2O•Al2O3•2SiO2•9/2H2O
Silica-alumina Ratio: SiO2/ Al2O3≈2
Aperture:

4A molecular sieve is a kind of molecular sieve (alkali metal alumino silicate) whose aperture is 4 Å. Sometimes, it is also called 4A zeolite molecular sieve.it is the sodium forms of the Type a crystal structure. 4A molecular sieve has an effective pore opening of about 4 angstroms (0.4nm). 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. Such absorbable molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxyde and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.

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 ≥96 ≥96
Bulk density g/ml ≥0.66 ≥0.66 ≥0.66 ≥0.66
Wear ratio % ≤0.20 ≤0.40 ≤0.20 ≤0.20
Crushing strength N ≥30/cm ≥45/cm ≥30/piece ≥70/piece
Static water adsorption % ≥20.5 ≥20.5 ≥21 ≥21
Static methanol adsorption % ≥15 ≥15 ≥15 ≥15
Water content, as shipped % ≤1.5 ≤1.5 ≤1.5 ≤1.5

Application
 Drying and removing of CO2 from natural gas, LPG, air, inert and athmospheric gases, etc.
 Removal of hydrocarbons, ammonia and methanol from gas streams
(ammonia syn gas treating)
 Special types are used in the air break units of buses, trucks and locomotives.
 Packed in small bags, it may be used simply as a packaging desiccant.

Regeneration
Naike molecular sieve Type 4A 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 4A molecular sieve, a temperature of 250-280°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.

Removal of water:

Hot gas at 200-350°C and pressure 0.3-0.5Kg/cm2 flows through the molecular sieve bed for 3-4 h. lettemperature decreases down to 110-180°C, cooling.

Removal of organics: 

Regeneration is achieved by means of steam treatment to remove organics, and then remove water with method 1.

Conservation:
Room temperature, humidity <90%, non-expose to air; non-contactwithwater, acid and alkali...

Price Terms:FOB shenzhen or shanghai or C&R、CIF
Payment Terms:T/T、L/C
Packing:carton box/carton drum/iron drum+pallet, Palletized + plastic film wrapped; Inside PP airtight.
Lead Time:7 days for 20FCL
Standards Certificate:MSDS & ISO9001:2000

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