Industrial Adsorbents

Activated Aluminas

Activated aluminas are a family of aluminium oxides (al2o3) used as a desiccant, or drying agent, for industrial liquids and gases such as air, nitrogen, oxygen, carbon dioxide and hydrocarbons.

Product Information

Activated alumina is used for a wide range of adsorbent and catalyst applications including the adsorption of catalysts in polyethylene production, in hydrogen peroxide production, as a selective adsorbent for many chemicals including arsenic, fluoride and in sulfur removal from gas streams (Claus Catalyst process). Finally Activated Aluminas are also used as filters for fluoride, arsenic and selenium in drinking water.

Activated aluminas are both high surface area beads and crushed products that are “activated” by a proprietary process to achieve specific surface chemistry and reactivity. Commonly used as Adsorbents, desiccants and catalysts, the chemistry, size and structure of these aluminas are tailored to specific applications at UOP’s ISO 9001:2000 certified plant in Baton Rouge, Louisiana. Additives are also commonly used with activated aluminas to achieve even greater performance in certain applications eg removal of sulphur and chloride in refinery applications.

Activated alumina is produced by a careful controlled calcination of alumina trihydrate
Can be blended with other Adsorbents such as carbon, clay minerals, molecular bonding agents and elastomeric polymers.

Mechanically strong and highly resistant to abrasion, breakage and deterioration during usage thereby insuring a long-life service
Relatively inert, non-toxic, non-corrosive and not prone to oxidation. Good performance, even at low concentration ranges.

• Desiccant/Dehydration
• Hydrogen peroxide manufacturing
• Polyethylene production
• Defluorination of alkylation product streams
• Water treatment (fluoride and arsenic removal)
• Aqueous treatment (removal of hydrogen sulphide, carbonyl chloride and hydrogen chloride)
• Off-gas treatment (carbon dioxide, hydrogen chloride and hydrogen sulphide removal)
• Removal of alcohol and ether from liquid streams

UOP A-201
A-201 is a spherical activated alumina that has a high surface area, adsorption capacity, and abrasion resistance. It is widely used in all drying applications.

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