4A molecular sieves

Typical chemical formula of 4A molecular sieves is Na2O . Al2O3 . 2SiO2 . 4.5 H2O, the 4A molecular sieves is also an alkali alumino silicate, it is the sodium form of the Type A crystal structure. 4A molecular sieves always applied for dehydrating compressed air, the pore size for 4A molecular sieve is 4A, so type 4A molecular sieve will awill adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. Such adsorbable molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxyde and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.  4A molecular sieves are often used as a polishing layer in molecular sieve dryers to achieve dewpoints down to -120°F. Molecular sieve is the most effective desiccant for low inlet, relative humidities, generally below 30-35% RH.

Specification of 4A molecular sieves :

Applications of 4A molecular Sieves:

4A molecular Sieves can be used for generation and purification of argon and for deep drying of air, natural gas, alkane and refrigerant; it can also applied for the static dehydration of electronic element, pharmaceutical and unstable materials and desiccant for paint, dope and foul etc.

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13X molecular sieves

The typical chemical formula of 13X molecular sieves is Na2O . Al2O3 . (2.8±0.2) SiO2 . (6~7)H2O. 13X molecular sieves are the sodium type from the type X crystal and consists of a a terrific offer bigger pore opening compared to type A crystals. It will adsorb molecules getting a kinetic diameter of much under 9 Angstrom (0.9 nm) and exclude those people larger.13X molecular sieves’ these characters could purify substance fuel in oxygen-making product and also to separate out H2O,CO2 and C2H2 through the use of the air. In purified air, the composed content of H2O is practically zero, this product or services may be also employed to desulphurization or get rid of H2S in fluid petroleum hydrocarbon and organically grown gas, and also to separate out aromatic hydrocarbon in fraction of kerosene and gasoline.

Specification of 13X molecular sieves :

Application of 13X molecular sieves :

13X molecular sieves often applied for removal of CO2 and moisture from air and other gases, and Separate enriched oxygen from air.  13X molecular sieve can used in the production of bulk oxygen in PSA units and medical oxygen in small scale oxygen concentrators, and 13X molecular sieves often applied for removal of mercaptans and hydrogen sulphide from natural gas and removal of n-chained compositions from aromatics.

Regeneration:

Molecular sieves 13X can be regenerated by either heating in the case of thermal swing processes or by lowering the pressure in the case of pressure swing processes. For removing moisture from a 13X molecular sieve, a temperature of 250-300°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C, or mercaptan or CO2 levels below 2 ppmv. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process

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5A molecular sieves

The typical chemical formula of 5A molecular sieves is 0.7 CaO . 0.3 Na2O . Al2O3 . 2 SiO2 . 4.5H2O .  It’s an alkali metal alumino-silicate, in the calcium form of the Type A crystal structure. 5A molecular sieves has an effective pore opening of  5 angstroms (0.5 nm). Molecular sieve 5A will adsorb molecules with a kinetic diameter of less than 5 Angstrom and exclude those larger. All molecules which can be adsorbed on Molecular Sieve types 3A and 4A can be adsorbed on Type 5A.  And the 5A molecular sieves can be applied for  for the dehydration and purification of different hydrocarbon and non-hydrocarbon fuel and fluid streams. It is used for the separation of straight and branched chain hydrocarbons, sweetening and drying of organically produced gases as well as the producing of higher purity hydrogen. 5A molecular sieve could also purity N2, O2, H2 and inert gases from mixed gas streams.

Specifications of 5A molecular sieves

Note:

1. Regenaration : 5A molecular sieve could possibly be regenerated for re-use by purging or evacuating at elevated temperatures. The level of regeneration (water removal) is dependent concerning the temperatures and humidity concerning the purge gas.

2. Storage: 5A molecular sieves should be saved in the dried out place (relative humidity < 90%) to stay obvious of re-adsorption of water. Opened deals must appear to be resealed to stay obvious of contamination within of the product. at any time possible, rotate store to create utilization of oldest materials first.

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3A molecular sieves

The Typical Chemical Formula of 3A molecular sieves is 0.45 K2O . 0.55 Na2O . Al2O3 . 2 SiO2 . 4.5H2O ( SiO2 : Al2O3 ≈2 ) And 3A molecular sieve is an alkali metal alumino-silicate, this is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximises lifetime when dehydrating such molecules.

The Typical Chemical Formula of 3A molecular sieves is 0.45 K2O . 0.55 Na2O . Al2O3 . 2 SiO2 . 4.5H2O ( SiO2 : Al2O3 ≈2 ) And 3A molecular sieve is an alkali metal alumino-silicate, this is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximises lifetime when dehydrating such molecules.

Specifications of 3A molecular sieves

The appliacation of 3A molecular sieves

1. dehydration of air

2. dehydration of refrigerants

3. ehydration of natural gas or methane

4. ehydration of cracked gas, ethylene, propylene or butadiene

Note: 3A molecular sieves type can be regenerated by either heating in the case of thermal swing processes or by lowering the pressure in the case of pressure swing processes. To remove moisture from 3A molecular sieves, a temperature of 200-230°C is required. And properly regenerated molecular sieve can give moisture dew points below -100°C. And the outlet concentrations on a pressure swing for 3A molecular sieves process will depend on the gas present, and on the conditions of the process.

And 3A Zeolites are available in beads of 1-2 mm, 2-3 mm, 2.5-5 mm,or as powder,or in pellet 1.6”, 3.2”.

Packing:

25kg carbon box or 55 Gallon iron drums.

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