Activated Alumina
Molecular Sieves
Tower Packing
Activated Carbon
Silica Gel
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13X Molecular Sieves
13X Molecular Sieves
中文名：13X分子筛
Chemical Formula: 4/5CaO·1/5Na2O.Al2O3 · (2.8±0.2) SiO2 · (6-7) H2O
Specifications
|
Item |
Unit |
Index |
||||
|
Shape |
Sphere |
Pellet |
||||
|
Diameter |
mm |
Φ2-3 |
Φ3-5 |
Φ5-8 |
1.6 |
3.2 |
|
Bulk Density |
Kg / L |
>0.7 |
>0.7 |
>0.7 |
>0.65 |
>0.65 |
|
Crushing strength |
N |
>30 |
>70 |
≧120 |
20 |
50 |
|
Wear Ratio |
Wt% |
<0.5 |
<0.5 |
<0.5 |
<0.5 |
<0.5 |
|
Hot adsorption (Max) |
kilojoule/Kg Water |
4200 |
4200 |
4200 |
4200 |
4200 |
|
Static water absorptivity |
Wt% |
>26.5 |
>26.5 |
>26.5 |
>26.5 |
>26.5 |
|
Packing water |
Wt% |
<1.5 |
<1.5 |
<1.5 |
<1.5 |
<1.5 |
|
Methane adsorption |
Wt% |
>17.5 |
>17.5 |
>17.5 |
>17.5 |
>17.5 |
Packing and Storage
25kg/carton, 150kg/steel drum
On room temperature, relative humidity not more than 90%; not lay bare in the air; keep away from water, acid and soda
Molecular Sieve 13X APG
Molecular Formula: Na2O*Al2O3*(2.8±0.2)SiO2*(6-7)H2O
Applications: Used commercially for air plant feed purification(simultaneously removal of H2O, CO2and part of hydrocarbons)and general gas drying.
Specification:
|
Properties |
Unit |
Spherical |
Cylindrical |
|||
|
Diameter |
mm |
1.6-2.5 |
3-5 |
5-8 |
1/8″ |
1/16″ |
|
StaticH2O adsorption |
≥ % wt |
27 |
27 |
27 |
27 |
27 |
|
CO2 Adsorption |
≥ % wt |
18 |
18 |
18 |
18 |
18 |
|
Bulk Density |
g/ml |
0.67±0.02 |
0.66±0.02 |
0.66±0.02 |
0.62±0.02 |
0.62±0.02 |
|
Crush Strength |
≥ N |
30 |
60 |
120 |
65 |
30 |
|
Wear rate |
≤ % wt |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
|
Package moisture |
≤ % wt |
1.0 |
1.0 |
1.0 |
1.5 |
1.5 |
Molecular Sieve 13X HP
Molecular Formula: Na2O*Al2O3*(2.8±0.2) SiO2*(6-7)H2O
Applications: Used commercially for air plant feed purification and PSA oxygen generation process.
Specification:
|
Properties |
Unit |
Spherical |
Cylindrical |
|||
|
Diameter |
mm |
2.0-2.5 |
3-5 |
5-8 |
1/8″ |
1/16″ |
|
StaticH2Oadsorption |
≥ % wt |
28.5 |
28.5 |
28.5 |
28.5 |
28.5 |
|
CO2 Adsorption |
≥ % wt |
19.5 |
19.5 |
19.5 |
19.5 |
19.5 |
|
Bulk Density |
g/ml |
0.64±0.02 |
0.64±0.02 |
0.66±0.02 |
0.62±0.02 |
0.62±0.02 |
|
Crush Strength |
≥ N |
25 |
80 |
100 |
65 |
25 |
|
Wear rate |
≤ % wt |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
Package moisture |
≤ % wt |
1.0 |
1.0 |
1.0 |
1.5 |
1.5 |
Molecular Sieve 13X PG
Molecular Formula: Na2O*Al2O3*(2.8±0.2) SiO2*(6-7)H2O
Applications: Used commercially for desulphurization of liquefied petroleum gas. It is also used fordehydration of gas and liquids.
Specification:
|
Properties |
Unit |
Spherical |
Cylindrical |
|||
|
Diameter |
mm |
1.6-2.5 |
3-5 |
5-8 |
1/8″ |
1/16″ |
|
Static H2O adsorption |
≥ % wt |
26 |
26 |
26 |
26 |
26 |
|
CO2Adsorption |
≥ % wt |
17.5 |
17.5 |
17.5 |
17.5 |
17.5 |
|
Bulk Density |
g/ml |
0.67±0.02 |
0.66±0.02 |
0.66±0.02 |
0.62±0.02 |
0.62±0.02 |
|
Crush Strength |
≥ N |
35 |
80 |
120 |
65 |
30 |
|
Wear rate |
≤ % wt |
0.1 |
0.1 |
0.1 |
0.2 |
0.2 |
|
Package moisture |
≤ % wt |
1.0 |
1.0 |
1.0 |
1.5 |
1.5 |
Introduction
Molecular sieve also called zeolite, is a crystalline aluminum silicate. Its crystal structure has neat and uniform channel, aperture around a molecular level, molecular sieve only allows smaller diameter than its aperture into it, so it can sieve molecules according to their size in the mixture, so it called molecular sieve. According to molecular sieve aperture size, there are 3A, 4A, 5A, 10X, 13X. 4A molecular sieve is Na-A molecular sieve, aperture 0.4nm; if Na replaced by K, aperture 0.3nm, is 3A molecular sieve; if over 1/3 Na replaced by Ca2+, aperture 0.5nm, is 5A molecular sieve.
13X molecular sieve, also called Natrium X molecular sieve, Zeolite 13X, is a kind of alkali metal silicon aluminate, its skeleton structure composed of silica and alumina tetrahedral FAU, main crystal holes are twelvering structures. To the X type molecular sieve,if silicon aluminum ratio is not the same, crystal structures are different. 13X molecular sieve silicon aluminum ratio≈2.6-3.0 (SiO2/Al2O3≈2.6-3.0), aperture 10A, it can adsorb any molecules which critical diameteris greater than 3.64A and less than 10A, as long as the molecules can be adsorbed by 3A, 4A, 5A type molecular sieve, they also can be adsorbed by 13X molecular sieve. Furthermore, 13X molecular sieve can adsorb bigger critical diameter molecules, such as aromatic hydrocarbons and branched chain hydrocarbons.
Application
Purifying the gas in the air separation device, removal of H2O, CO2 and hydrocarbons; natural gas, liquefied petroleum gas, liquid alkanes (propane, butane) dehydration and desulphurization (removal of H2S and thiol); general gas (such as compressed air, permanent gases) depth drying; ammonia synthesis gas drying and purifying; aerosol, propellant desulfurization and deodorization; pyrolysis gas removal of CO2; catalyst carrier; water and carbon dioxide coadsorption; water and hydrogen sulfide gas coadsorption etc.
Regeneration
3A, 4A, 5A, 10X, 13X molecular sieves can be regenerated by the method of heating with purging or evacuation.
1. Moisture removal: Normally 150～320℃ dry gas such as nitrogen, air, hydrogen, saturated hydrocarbon under 0.3～0.5kg/cm through molecular sieve bed layer 3-4 hours, then filled with cold dry gas to the adsorber about 2-3 hours, isolated from the air and cooling to room temperature;
2. Removing organic matter: Used vapour instead of organic matter, then repeat step 1. Also can be regenerated by 200-350℃ through hot vapour or inert gases;
3. Removal of gas substances: by the way of decompression.