LF808 Molecular sieve 3A
1 Molecular formula
K12[(AlO2)12(SiO2)12·XH2O
2 Brief introduction of molecular sieve 3A
LF808 Molecular sieve 3A is a kind of aluminosilicate crystal adsorbent with multi-functions and high selectivity, able to adsorb molecules with their critical diameters no more than 3Å. In water adsorption process, it can adsorb water while excluding other hydrocarbon molecules, so it is widely used in deep drying of oil gases and pyrolysis gases, e.g., ethylene, propylene, butadiene, acetylene and natural gas. LF808 Molecular sieve 3A has successfully replaced the imported products and widely used as dessicant in domestic petrochemical and oil industries.
3 Technical parameters
Technical parameters of LF808 Molecular sieve 3A are seen in Table 1.
Table 1 Technical parameters of LF808 Molecular sieve 3A
Items | Indexes |
Exterior | White extrudate | White sphere |
Diameter, mm | 1.6 | 3.2 | Ф2-4 | Ф4-6 |
Bulk density, kg/m3 | 640-680 | 660-700 | 680-740 | 660-720 |
Crushing strength, N > | 40 | 160 | 60 | 80 |
Equilbrium water capacity*, %(wt) | 20.0 | 21.0 | 21.0 | 21.0 |
Static ethylene capacity, %(wt) | 0.3 |
Water content (when to be delivered), %(wt) < | 1.5 | 1.5 | 1.5 | 1.5 |
Loss of abrasion ≤ | 0.1 | 0.2 | 0.2 | 0.2 |
Effective diameter of molecules discharged < | 3A molecules, e.g. ethane |
* Grams of water adsorbed by 100g activated adsorbant under a pressure of 17.5mm mercury column and a temperature of 25℃.
4 Packing and attentions
● Molecular sieve 3A is packed in plastics bags, 25kg/bag, or iron drums, 200L/drum.
● Customized as per customer’s demand.
● Molecular 3A shall be packed in seal, avoiding exposure to air. It shouldn’t be transported together with water, acid or alkali. It should be stored in clean, dry, and ventilated warehouses.