3A Molecular Sieves Zeolite in Beads Pellets Form
CHEMXIN zeolite 3a molecular sieve adsorbent for ethanol drying
Most of the industries require 100% water-free Ethanol. The finally manufactured alcohol is a rectified spirit with almost 94.6% alcohol and the remaining percentage is water. It is very difficult to remove the amount of water in alcohol using any straightforward and simple distillation process.
Therefore, a special 3 angstrom molecular sieves dehydration process needs to be carried out using latest technology to manufacture the absolute alcohol.
In the case of ethanol, water is extracted by making it dehydrated with the help of adsorbent structure of molecular sieve 3A. The potassium-based molecular sieve pore size of 3a is 3A0 or 3 Angstrom, it cannot adsorb all molecules which having the pore size is large then 3A.
Technical Parameter:
| Model | 3A | |||
| Nominal pore diameter | 3 angstroms | |||
| Shape | Sphere | Pellet | ||
| Diameter (mm) | 1.7-2.5(8*12 mesh) | 3.0-5.0(4*8 mesh) | 1.6(1/16 inch) | 3.2(1/8 inch) |
| Size ratio up to grade (%) | ≥98 | ≥98 | ≥96 | ≥96 |
| Bulk density (g/ml) | ≥0.70 | ≥0.70 | ≥0.68 | ≥0.68 |
| Wear ratio (%) | ≤0.20 | ≤0.20 | ≤0.40 | ≤0.40 |
| Crushing strength (N) | ≥55/piece | ≥85/piece | ≥30/piece | ≥50/piece |
| Static H2O adsorption (%) | ≥21 | ≥21 | ≥21 | ≥21 |
| Ethylene adsorption (‰) | ≤3.0 | ≤3.0 | ≤3.0 | ≤3.0 |
| Water content (%) | ≤1.5 | ≤1.5 | ≤1.5 | ≤1.5 |
| Typical Chemical Formula |
0.4K2O . 0.6Na2O . Al2O3 . 2SiO2 . 4.5 H2O SiO2 : Al2O3 ≈2 |
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| Typical Application |
a) Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien) |
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