Zeolite 3A VS 4A Molecular Sieve Factory 1.6-2.5mm For Drying Of Unsaturated Hydrocarbons Methanol

Molecular Sieve 3A is made from zeolite powder 3A (>70%) and binder. Zeolite powder 3A is a potassium based type A zeolite, which is generated by replacing part of sodium cation in 4 angstrom sieve. Molecular sieve 3A is usually used for dehydration. Since it only adsorb molecule with diameter less than 3 anstroms. Molecular sieve 3A is a perfect adsorbent if you only want to remove water from gas mixture in most condition. Molecular Sieve 3A have the shape of beads and pallets.

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PRODUCTS DESCRIPTION

Zeolite 3A VS 4A Product Descritpion:

3A Molecular Sieve Methanol is specification designed for dehydrating fuel grade ethanol,as traditional distillation of ethanol is only possible up to the azeotropic point at 95.6% volume. The preferred technology for the dehydration of ethanol to get anhydrous and fuel grade ethanol is pressure swing adsorption using 3A EDG molecular sieves. 3A EDG molecular sieve selectively adsorbs the water from the solution to produce anhydrous ethanol with less than 1% volume. This is the dehydrating process of choice for fuel ethanol product. Molecular sieve 3A EDG for ethanol dehydration not only have good water adsorption capacity, but also should adsorb methanol and ethanol as little as possible. 3A EDG uses special process to achieve this purporse. It has outstanding water adsorption capacity, little ethanol co-adsorption, high mechanical strength, low attrition. At the same time, the by-product can be greatly supressed.

Model	3A Molecular Sieve
Nominal pore diameter	3 angstroms
Shape	Sphere		Pellet
Diameter	1.7-2.5(mm)	3.0-5.0(mm)	1.6(mm)	3.2(mm)
Bulk density (g/ml)	≥0.7	≥0.7	≥0.68	≥0.68
Crushing strength (N/PC)	≥55.0	≥85.0	≥30.0	≥50.0
Size ratio up to grade (%)	≥98.0	≥98.0	≥96.0	≥96.0
Static H2O adsorption (%)	≥21.0	≥21.0	≥21.0	≥21.0
H2O content (%)	≤1.5	≤1.5	≤1.5	≤1.5
Wear ratio (%)	≤0.25	≤0.25	≤0.25	≤0.25

3A Molecular Sieve 1.6-2.5mm For Drying Of Unsaturated Hydrocarbons Methanol

More Details:
1. Synonym: Ethanol Zeolite 3A, Ethanol Molsive 3A, Alcohol dehydration 3A
2. Typical Chemical Formula: 0.4K2O.0.6Na2O.Al2O3.2.OSiO2.4,5H2O
3. CAS NO.: 1318-02-1
4. Silica-alumina ratio: SiO2/ Al2O3≈2

Application:

1. Zeolite 3A Unsaturated Hydrocarbons is used for anhydrosus and fuel grade ethanol or alcohol dehydraiton by PSA (pressure swing adsortpion method)

3A Molecular Sieve 1.6-2.5mm For Drying Of Unsaturated Hydrocarbons Methanol

Stroage:

Keep 3A EDG Molecular Sieve in an air tight container until ready for use to avoid unintended moisture adsorption.

Regeneration&Activation:

3A Molecular Sieve Factory can be regenerated or activated either thermal regeneration method(Thermal Swing Adsorption, TSA); To remove moisture from a 3A molecular sieve, a temperature of 200-230℃ (390-570°F)is required. Molecular sieve 3A can also be regnerated or activated by lowering the pressure in the case of pressure swing processes (PSA). A properly regenerated or activated molecular sieve can give moisture dew points below -100℃. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.

Packing:

3A Molecular Sieve 1.6-2.5mm For Drying Of Unsaturated Hydrocarbons Methanol