Product introduction
3A molecular sieve is a kind of alkali metal silica aluminate, it is also called 3A zeolite molecular sieve
Chemical formula:⅔K20-⅓Na20-AL₂O₃.2SiO₂.9/2H2O, effective pore size about 3A, mainly used for adsorption of water, not adsorption of any molecule with a diameter greater than 3A, according to the characteristics of industrial applications, it has fast adsorption speed, regeneration times, anti-crushing strength and anti-pollution ability, high High utilization efficiency, long service life, etc. It is the desiccant necessary for deep drying, refining and polymerization of gas-liquid phase in petroleum and chemical industry.
Parameter
Classification | Items | 符号 | 1/16inch | 1/8inch | 4×8mesh | 8×12mesh |
3A |
|
| Strip | sphere |
Pore size （Å） |
| 3 | 3 | 3 | 3 |
Buck density（kg/m³) | ≥ | 680 | 680 | 710 | 710 |
Adsorption heat Kj/kg H₂O |
| 4186 | 4186 | 4186 | 4186 |
Diameter（mm） |
| Φ1.5-1.7 | Φ3.1-3.3 | Φ3.0-5.0 | Φ1.7-2.5 |
Crushing strength （N）
| ≥ | 45 | 90 | 100 | 35 |
Static water adsorption（wt,%) | ≥ | 21 | 21 | 21 | 21 |
Moisture（wt,%) | ≤ | 1.5 | 1.5 | 1.5 | 1.5 |
Dynamic water adsorption/% | ≥ | 15 | 15 | 10 | 10 |
Static ethylene adsorption（mg/g) | ≤ | 3 | 3 | 3 | 3 |
Particle size | ≥ | 98 | 98 | 98 | 98 |
3A Molecular Sieve Features
Stable adsorption operation
Our 3A molecular sieve has the feature of low abrasion and no dust, which solves the problem of large amount of molecular sieve dust brought into the post-system due to low strength and high abrasion, causing blockage of pipelines and equipment.
Strong penetration temperature capacity
The product solves the problem of medium-pressure steam humidification used in the regeneration process of other types of molecular sieves to remove the adsorbed hydrocarbon substances and surface carbonization, etc.
Strong adsorption capacity
Avoid the high feed temperature of demethanation tower, increased olefin loss at the top of the tower, and decreased separation efficiency of the tower plate. And the phenomenon of increased resistance drop and instability of the whole olefin production unit
Long service life
Short regeneration time, long life cycle, surface activity is still good after 1-2 years of use
Application areas
01、It is used for deep dehydration and drying of raw material cracking gas in ethylene, propylene, acetylene and butadiene separation production equipment, which can dry cracking gas with temperature of 16±1°C, pressure of 3.2±0.1MPa and water content of 600-900PPm to make its dew point less than -55°C, and then enter the pre-cooling system of low temperature demethane tower.
02、It is mainly applied to the adsorption of water in the gas of insulating glass interlayer, and continuously adsorbs the water entering the interlayer during the life of insulating glass; avoids the fogging of glass, makes insulating glass remain bright and transparent even at very low temperature, improves the heat and sound insulation and thermal insulation performance of insulating glass, thus reducing energy consumption and fully extending the service life of insulating glass.
03、Used for fuel ethanol dehydration, the highest ethanol dehydration can reach 99.999%; low energy consumption, without considering the comprehensive energy utilization with other processes, energy consumption is less than 560KJ/L ethanol; easy to operate, the whole process can be controlled automatically; environmental protection, no toxic and harmful substances introduced, the whole process will not pollute the environment: long life, the service life under normal operating conditions can reach 7-10 years Years
04、Refrigerant should choose specific special molecular sieve, XH-7 and XH-9 molecular sieve produced by our company are suitable for refrigerants with very stable chemical properties, such as R-134a, R22, 1234yf, etc. Refrigeration desiccant can be used in the manufacture of various automobile air conditioning system tanks and refrigerant filters, including filters in various refrigerators, freezers, air conditioners, and other refrigeration heat exchange devices.
