Hydrosil’s HS-AA is designed for air and gas drying. The activated alumina uses a process called adsorption to dry air and gas. Activated alumina is manufactured from aluminium hydroxide which is dehydroxylated creating a porous material. The porous material works as a desiccant which when immersed in a liquid the material will not soften or deteriorate. When heated to approximately 350°F-600°F, HS-AA will release the water molecules that were adsorbed and the material can be reused. Common industries that use activated alumina are:
<ul>
<li>Air Dryers</li>
<li>Drinking Water</li>
<li>Refineries</li>
<li>Catalyst Applications</li>
</ul>
Activated alumina is often altered to increase affinity to select pollutants such as arsenic (<a href="https://hydrosilintl.com/water-filtration/hs-as/">HS-AS</a>) and fluoride (<a href="https://hydrosilintl.com/water-filtration/hs-f/">HS-F</a>).

hs-aa-3

HS-AA

hs-aa-4

Vapor Phase, Activated Alumina

Hydrosil’s HS-AA is designed for air and gas drying. When heated to approximately 350°F-600°F, the HS-AA will release the water molecules that were adsorbed and the material can be reused.

HS-AA | Vapor Phase, Activated Alumina | Hydrosil International

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Property:	Value:
Apparent Density, lb/ft 3	43-45
U.S. Standard Sieve Size (Mesh Size)	3 x 5, 14 x 28
Specific Surface Area, m2/g	300
Crush Strength, lb	20

HS-AA

Vapor Phase, Activated Alumina

HS-AA Pressure Drop

typical physical properties

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