The pore size of 4A molecular sieve is 4 angstroms. It can adsorb water, methanol, ethanol, hydrogen sulfide, sulfur dioxide, carbon dioxide, ethylene, propylene and other substances, but does not adsorb any molecules with a diameter greater than 4 angstroms (including propane). The selective adsorption performance of 4A molecular sieve for water is higher than any other molecule, and it is one of the most widely used molecular sieve varieties in industry.
| Item | unit | Spherical | Bar type | note | ||
| 1.6-2.5 mm | 3-5 mm | 1/16" | 1/8" | |||
| Static water adsorption* | %wt | ≥ 21.50 | ≥ 21.50 | ≥ 21.50 | ≥ 21.50 | RH50%, 25℃ |
| strength | N | ≥ 40.00 | ≥ 80.00 | ≥ 35.00 | ≥ 80.00 | 25 grains on average |
| Heap specific gravity | g/ml | ≥ 0.70 | ≥ 0.70 | ≥ 0.64 | ≥ 0.65 | Shake up |
| Shakup | %wt | ≤ 1.50 | ≤ 1.50 | ≤ 1.50 | ≤ 1.50 | 575℃, 1 hour |
| abrasion | %wt | ≤ 0.10 | ≤ 0.10 | ≤ 0.30 | ≤ 0.30 | ~ |
| screening | %wt | ≥ 97.00 | ≥ 99.00 | ~ | ~ | ~ |
| *Adsorption capacity of molecular sieves after activation | ||||||
| Note: If there are special requirements for the product, the technical metrics will be agreed upon at the time of ordering | ||||||
Applications:
Removal of water, carbon dioxide and hydrogen sulfide from various gas streams (including hydrocarbons); can also be used for batch separation of linear or branched hydrocarbons.
Packing:
| type | carton | Barrels | Tons of bags |
| Spherical | 25 kg/ 55 lb | 150 kg/ 330 lb | 1000 kg/ 2200 lb |
| Bar type | 25 kg/ 55 lb | 150 kg/ 330 lb | 1000 kg/ 2200 lb |
