Molecular sieve is a crystalline material with a uniform microporous structure, and these uniform pores can adsorb molecules smaller than their diameter into the cavity, and have preferential adsorption capacity for polar molecules and unsaturated molecules.
Adsorbent, Catalyst
Strip / Bead
3A, 4A, 5A, 13X
281122 / 382499
Molecular sieve is a crystalline material with a uniform microporous structure, and these uniform pores can adsorb molecules smaller than their diameter into the cavity, and have preferential adsorption capacity for polar molecules and unsaturated molecules. Molecular sieve can separate molecules with different degrees of polarity, different degrees of saturation, different molecular sizes and different boiling points, that is, it has the function of "sieve" molecules, so it is called molecular sieve. Molecular sieves have the advantages of high adsorption capacity and strong thermal stability, which other adsorbents do not have, and can be used as high-efficiency desiccant, selective adsorbent, catalyst, ion exchanger, etc. It has a very wide range of applications.
Main Applications
3A molecular sieve is mainly used for the drying of various gases and liquids, such as air, ethanol, refrigerant, natural gas, methane, unsaturated hydrocarbons and pyrolysis gas, ethylene, propylene, butadiene, etc.
Chemical formula 0.4K₂O·0.6Na₂O·Al₂O₃·2.0SiO₂·4.5H₂O
Technical Data
| Items | Unit | Data | |
|---|---|---|---|
| Shape | Strip | Bead | |
| Qualified size rate | % | ≥98 | |
| Bulk density | g/L | ≥680 | ≥750 |
| Wear rate | % | ≤0.20 | ≤0.15 |
| Crush strength | N | According to the size | |
| Static water adsorption capacity | % | ≥20 | ≥20.5 |
| Static ethylene adsorption capacity | % | ≤3 | |
| Moisture content | % | ≤1.5 | |
Main Applications
4A molecular sieve is mainly used for deep drying of air, natural gas, alkanes, refrigerants and liquids. Used for pharmaceutical packaging, static drying of electronic components, production and purification of argon, and as a dehydrating agent in paints, coatings, and fuels.
Chemical formula Na₂O·Al₂O₃·2.0SiO₂·4.5H₂O
Technical Data
| Items | Unit | Data | |
|---|---|---|---|
| Shape | Strip | Bead | |
| Qualified size rate | % | ≥98 | ≥96 |
| Bulk density | g/L | ≥600 | ≥700 |
| Wear rate | % | ≤0.25 | ≤0.15 |
| Crush strength | N | According to the size | |
| Static water adsorption capacity | % | ≥20.5 | ≥21.5 |
| Static methanol adsorption capacity | % | ≥15 | |
| Moisture content | % | ≤1.5 | |
Main Applications
13X molecular sieve is mainly used for gas purification in gas separation devices to remove water and carbon dioxide. Used for drying and desulfurization in natural gas, liquefied petroleum gas, liquid hydrocarbons and general gas deep drying.
Chemical formula Na₂O·Al₂O₃·2.45SiO₂·6H₂O
Technical Data
| Items | Unit | Data | |
|---|---|---|---|
| Shape | Strip | Bead | |
| Qualified size rate | % | ≥98 | ≥96 |
| Bulk density | g/L | ≥540 | ≥680 |
| Wear rate | % | ≤0.25 | ≤0.15 |
| Crush strength | N | According to the size | |
| Static water adsorption capacity | % | ≥24 | |
| Static carbon dioxide adsorption capacity | % | ≥14 | |
| Moisture content | % | ≤1.5 | |
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