Silica Alumina Gel
一、Characteristics：
Color: faint yellow.
Chemical molecular formula: SiO2.nAl2O3.xH2O.
Chemically stable, flame-resisting. Insoluble in any solvent.
In comparison with fine-pored silica gel, the adsorption capacity of fine-pored silica alumina gel is quite the same when used at low relative humidity, (e.g., RH=10%, RH=20%), while its adsorption capacity at high humidity is 6-10% higher than that of fine-ported silica gel. Its thermal stability is over 150℃ higher than that of fine-pored silica gel (200℃). Ideally suited for use as adsorbent and Variable-temperature adsorbent.
二、Use:
Mainly used forthe dewatering of natural gas, adsorption and separation of light hydrocarbon at variable temperatures. It may also be used as catalyst and catalyst carrier in petrochemical industry, industrial drier, liquid adsorbent and gas separator, etc.
三、Technical Data：
|
ITEM |
Specifications |
Typical values |
|
|
Adsorption capacity,% |
RH=20%； ≥ |
8.5 |
RH=10% 6.9 |
|
RH=40%； ≥ |
18.0 |
---- |
|
|
RH=80%； ≥ |
36.0 |
43.7 |
|
|
Pore volume, ml/g |
0.4—0.7 |
---- |
|
|
Specific surface area, m2/g |
600--800 |
---- |
|
|
Bulk density,g/L ≥ |
650 |
719 |
|
|
pH |
4--8 |
---- |
|
|
Qualified ratio of spherical granules,% ≥ |
80 |
---- |
|
|
Loss on heating, % ≤ |
3.0 |
2.1 |
|
|
Al2O3 content, % |
0.5—8.0 |
---- |
|
Silica Alumina Gel(HY-W)
一、Characteristics：
This product is a water-resistant silica-alumina gel with fine pores．It is usually used as protective layer of fine-pored silica gel or fine-pored silica—alumina gel，and can be used solely when dissociated water(1iquid water)is in high content．Lower dew point can be true when liquid water exits in system．
二、Use:
It is mainly used as drying agent for air-separation，compressed air and industrial gases，as ethyne absorbent for preparation of liquid oxygen or liquid nitrogen and as liquid absorbent or catalyst carrier in oil chemistry，electricity and brewery industry．especially used as protective layer of common silica gel and silica-alumina gel．About 20%(wt)should be the percent when used as protective layer．
三、Technical Data：
|
Item |
SPECIFICATIONS |
|
|
SiO2,% |
approx.83 |
|
|
Al2O3,% |
approx.17 |
|
|
Specific surface area,㎡/g |
approx.500 |
|
|
Adsorption capacity |
RH20% |
≥5.8 |
|
RH40% |
≥11.5 |
|
|
RH80% |
≥33.0 |
|
|
Bulk density，g/l |
approx.780 |
|
|
Compression strength ，N/particle |
≥100 |
|
|
Pore volume,ml/g |
approx.0.4 |
|
|
Moisture content，% |
≤3.0 |
|
四、Size:2-4mm, 1-3mm
五、Packing:25kg per compound bag or 500kg per container bag.
Note: Packing and size may be customized per your specific requirements.
