Activated Alumina Desiccant
Activated Alumina Desiccant
1. The Activated alumina has large specific surface area, large capacity of absorption, high strength and thermal stability.
2. It can be widely used as absorbent, desiccant and catalyst carier in chemical, petrochemical, fertilizer, oil and gas industries.
3. It can be used in the deep drying of cracked gas, ethylene and propylene, hydrogen-generation, air seperation, instrument air drying and fluorine treatment for H2O2, also in the absorbing pollution material, such as H2S, SO2, HF and paraffin in the waste gas, especially in the drinking water defluorination and so on.
4. Activated alumina can be divided into Model y and Model χ-ρ according to their inside main crystal phase, and be divided into absorbent, desiccant and catalyst carrier etc.
Activated Alumina Desiccant is a very porous form of aluminum oxide of high surface area which adsorbs liquids and gases without any change in form.
Activated Alumina is resistant to thermal stock and abrasion and will not shrink, swell, soften nor disintegrate when immersed in water
Desiccant
Activated alumina as a desiccant, will work by adsorption. The water in the air will stick to the alumina as the air passes through it. The water molecules become trapped so that the air is dried out as it passes through the filter. This process of regenerating the alumina is achieved when the activated alumina desiccant is heated, it will let go of all of the water stored in it, allowing it to be used over and over.
Air and Gas Drying.
Some of the key specifications of Activated Alumina are:
- Form: Sphere (Balls)
- Size: 2-5, 3-6, 5-8 mm
- Bulk Density: 0.75 to 0.85 Gms/Liter
- Surface Area: 345 to 415 M2/Gm
- Pore Volume: 0.40 to 0.50 CC/Gm
- Adsorption Capacity (at 60 % RH): 21.5 %.
- Attrition Loss: 0.2 %.
Applications
- Drying of air, gases and liquids (removal of metallic traces, TBC and HF compounds).
- Purification and conditioning of insulating oil and industrial oils
- Removing acidic impurities and trace metal scavenging in organic streams and inorganic gases
- Removal of oil vapors from gases
- Purification of drinking water (e.g. removal of fluoride compounds etc )
- In refrigeration circuits, transit packing for goods like electronic, pharmaceutical and food
- As fire retardant fillers
- As catalyst for bed support / carriers
- Drying of organic liquids such as LPG, propylene, butene, steam cracked liquids, cyclohexane, gasoline, chloro- and fluorohydrocarbons, aromatic solvents.
- Drying of air and gases such as steam cracked gases, catalytic reforming recycle gas, synthesis gas, natural gas, CO2.
- Drying of organic liquids as LPG, aromatics, steam cracked liquids, gasoline, chloro- and fluorocarbons.
- Drying of air and gases as steam cracked gases, catalytic reforming recycle gases, synthesis gases, methyl chloride, natural gas, LNG, etc.
- Drying of hydrogen, oxygen, nitrogen, CO2, etc.
- Instrument air, supersonic wind tunnel, compressed air
- Gas drying Air separation plants, inert and rare gases, Hydrogen, oxygen, nitrogen, CO2.
- Natural gas in production and compression plants, LPG, LNG.
- Aromatics, naphtha cuts and cracked gas.
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