Molecular Sieve

Adsorbents

Molecular Sieve (3A / 4A / 5A / 13X)

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Description

Molecular sieves are adsorbents composed of crystalline silicates (sodium aluminosilicate and calcium aluminosilicate) — inorganic porous crystalline materials with a uniform microporous structure. Supplied as yellowish-brown granules in spherical or rod form.

Structure & key data: Crystalline aluminosilicate · Uniform micropores · 3A / 4A / 5A / 13X

Applications

3A — adsorption separation of unsaturated hydrocarbons and cracked gases (ethylene, acetylene, propylene, butadiene); deep dehydration of gases (air, ethanol, natural gas, methane)
4A — drying equipment for air compressors and LPG stations; adsorption of water, methanol, ethanol, H2S, SO2, CO2, ethylene and propylene; deep drying of gases and liquids; static drying of pharmaceutical packaging and electronic components; dehydrating agent in paints and dyes
5A — n-/iso-paraffin separation, pressure swing adsorption, co-adsorption of water and CO2; drying, purification of gas production units; natural gas drying, desulphurisation; ammonia-nitrogen tail gas purification
13X — catalyst carrier, co-adsorption of water and CO2 / H2S, natural gas deodorisation; drying in pharmaceutical and air-compression systems with higher capacity and lower dew point; deep purification of feed gas in air separation; drying and desulphurisation of natural gas, LPG and liquid hydrocarbons

Technical Specifications

Type	Pore Size	Base	Key Feature
3A	3 Å (0.3 nm)	Potassium-exchanged Type A	Strong preferential water adsorption, very high precision
4A	4 Å (0.4 nm)	Sodium Type A	Adsorbs < 4 Å molecules only; high precision at trace moisture
5A	5 Å (0.5 nm)	Calcium-exchanged Type A	n-/iso-paraffin separation, PSA, water + CO2 co-adsorption
13X	10 Å (1 nm)	Sodium Type X	Larger capacity, lower dew point; water + CO2 / H2S co-adsorption

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Packaging

Composite bag / drum. Other packaging available on request.

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Storage

Store in a dry, ventilated place. Keep sealed against moisture.

Activated Alumina

Alumina Desiccant

Al Silica Gel

Silica-Alumina Gel

Water Resistant Al Silica Gel

Non-Cracking Al Silica Gel