Molecular Sieve 3A
The pore size of 3A molecular sieve is 3A . It does not adsorb any molecular larger than 3A. It is an alkali metal alumina-silicate, the potassium form of the type A crystal structure. 3 Angstrom, is obtained when part of the sodium ions of the 4 Angstrom sieve are replaced by potassium ions. Will adsorb, in sequence of adsorption rate, helium, neon, nitrogen and water.
According to the industrial application specialties, we endue our products with the characters of higher adsorption speed, stronger crushing and anti-contaminated resistance, more cyclic times and longer work-span. All these advantage have made it come to be the most essential and necessary desiccant in the fields of the deep drying, refinery, polymerization for cracked gases, ethylene, propylene and any other non-acidic gases or liquids in petroleum and chemical industrials.
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 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.
Introduction:
The pore size of 3A molecular sieve is 3 A . It does not adsorb any molecular larger than 3 A. It is an alkali metal alumina-silicate, the potassium form of the typ A crystal structure. 3 Angstrom, is obtained when part of the sodium ions of the 4 Angstrom sieve are replaced by potassium ions. Will adsorb, in sequence of adsorption rate, helium, neon, nitrogen and water.
According to the industrial application specialties, we endue our products with the characters of higher adsorption speed, stronger crushing and anti-contaminative resistance, more cyclic times and longer work-span. All these advantage have made it come to be the most essential and necessary desiccant in the fields of the deep drying, refinery, polymerization for cracked gases, ethylene, propylene and any other non-acidic gases or liquids in petroleum and chemical industrials.
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 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.
Application
Molecular Sieve 3A is mainly used to remove moisture and can be applied to liquefied and gaseous materials on the whole. The main uses are as follows.
Drying of refrigerants (e.g. R22, R134a etc)
Removing moisture in paint and PU Plastic
Drying of natural gas.
Cracked Gas Drying.
Static dehydration of insulating glass units, whether air filled or gas-filled.
Drying of highly polar compounds, such as methanol and ethanol.
Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadiene).
Drying of olefins drying, ethanol, etc.
Dehydration of many kinds of liquids (say ethanol) air, refrigerant , natural gas or methane , cracked gas, ethylene, ethyne, propylene or butadiene .
Formula:0.4K2O·0.6Na2O·Al2O3·2.0SiO2·4.5H2O
Silica-alumina Ratio: SiO2/ Al2O3≈2
Aperture: 3 A
Technical specification
| Item | Pellet (mm) | Sphere (mm) | |||
| Ø1.6mm | Ø3.2mm | Ø1.7-2.5mm | Ø3-5mm | ||
| Wear ratio | % | ≤0.2 | ≤0.2 | ≤0.15 | ≤0.15 |
| Bulk density | g/ml | ≥0.70 | ≥0.72 | ≥0.66 | ≥0.66 |
| Ratio | % | ≥98 | ≥98 | ≥98 | ≥98 |
| Static water adsorption | % | ≥22 | ≥22 | ≥22 | ≥22 |
| Ethylene adsorb | % | ≤3 | ≤3 | ≤3 | ≤3 |
| Crushing strength | Unit area resistant to
compression garrulous strength N/mm2 |
≥30 | ≥40 | ≥55 | ≥85 |
| Coefficient of variation | 0.5 | 0.5 | 0.3 | 0.3 | |
| Packing water | % | ≤1.0 | ≤1.0 | ≤1.0 | ≤1.0 |
Special molecular sieve 3A for insulating glass
| Item | Insulating glass (mm) | ||
| Ø1.0-1.6mm | Ø1.6-2.0mm | ||
| Wear ratio | % | ≤0.15 | ≤0.15 |
| Bulk density | g/ml | ≥0.75 | ≥0.75 |
| Ratio | % | ≥98 | ≥98 |
| Static water adsorption | % | ≥22 | ≥22 |
| Ethylene adsorption | % | ≤2.5 | ≤2.5 |
| Crushing strength | Unit area resistant to
compression garrulous strength N/mm2 |
≥25 | ≥26 |
| Coefficient of variation | ≥0.3 | ≥0.3 | |
| Packing water | % | ≤1.5 | ≤1.5 |
Regeneration
1.Removing the moisture
You May use the dry gas like nitrogen, the air, the hydrogen, the saturated hydrocarbon and heat the gas up to 150-320℃. Firstly you need let the hot gas purge through the molecular sieve bed with the pressure of 0.3-0.5kg/m2 for 3 to 4 hours. Then change to dry cold gas for 2-3 hour, at last you need isolate the molecular sieve from air and cool it to room temperature.
2. Removing the organics
You can use the water vapor to take the place of organics, then use the method 1.
You can also use the hot water vapor or inner gas pass through the molecular sieve under the temperature of 200-350℃ (couldn’t use the gas which will explore when to mix with the adsorbed organics).
3. Removing the gas
You can reduce the pressure to regenerate the molecular sieve.
Package
Vacuum packaging, carton with 25kgs/carton, paper drum with 25kgs.drum, steel drum with 120-150kgs/drum, etc. per customers requirement.
MOQ: Min.100kgs
FAQ
1.Can you provide free samples?
We can provide free samples within 1kg.
2.Who will pay the courier fee?
Customers need to pay the courier fee. And we will return this courier fee in our following order.
3.Shall customer customize the package?
Our normal package is good for long distance shipping, however, customer’s special request of the package should be customized.
4.Could customer customize product?
Yes, we can customize products according to the customers’ requirement.
5.What’s your delivery time?
For 1*20gp, delivery time is within 13 days after we get the deposit.
6.How to pay?
T/T, L/C, Paypal or Western Union.
7.What’s your shipping port of loading?
Shanghai, Guangzhou, Shenzhen or according to customer’s request.