Bulk Desiccants

Desiccants for Drying Compressed Air and Gases. Activated Alumina, Molecular Sieve, Silica Gel, and Tabular Bed Support in a wide range of grades and sizes

Activated Alumina

Activated alumina is an aluminum oxide bead with an extremely porous structure and high surface area-to-mass ratio. Activated alumina has a wide variety of applications, including compressed air and gas drying. In compressed air and gas drying applications, activated alumina will achieve dew points -40F to -100F, depending on the dryer design. In compressed air desiccant dryers, a 1/8″ (2-5 mm) activated alumina bead is most commonly used. The 1/4″ (5-10 mm) activated alumina bead is typically used as a pre-bed for supporting large desiccant beds or as a buffer for silica gel beds. The 3/16″ (5-10 mm) bead is used when pressure drop and surface area requirements fall between the 1/8″ and 1/4″ material. brochure manuals

 

Manufacturers: Multiple

BASF Compressed Air Desiccant Guide

Desiccant
Activated Alumina Desiccant

Available Sizes 

  • 1/8″
  • 3/16″
  • 1/4″
  • 1/2″

Quantities

  • 25lb Buckets
  • 330lb drums
  • 2000lb super sacks
  • Custom quantities

Features and Benefits

  • Dew Point (-40 to -100F°)
  • Low to zero dust discharge
  • High Adsorption capacity
  • Low abrasion
  • High Crush Strength
 

Applications

  • Regenerative Dryers
  • Acid Removal
  • Process stream purification
  • Hydrocarbon adsorption
  • Compressed air and gas lines
 

Molecular Sieve

Molecular sieve is highly porous sodium aluminosilicate bead for the adsorption of a wide range of liquids and gases. It has a fixed pore size according to the material specification. Because of its high comparative cost, molecular sieve is normally used for special process applications. In compressed air and gas drying applications, molecular sieve will deliver pressure dew point to -100°F, depending on dryer design and operating conditions.

Manufacturers: Multiple

Molecular-sieve-desiccant
Molecular Sieve Desiccant

Available Sizes 

  • 3A
  • 4A
  • 5A
  • 13X
 

Quantities

  • 25lb Buckets
  • 330lb drums
  • 2000lb super sacks
  • Custom quantities

Features and Benefits

  • Dew Point up to -100F°)
  • Uniform Capacity
  • High Adsorption capacity
  • Round Bead
 

Applications

  • Petroleum Industry
  • Gas Stream Purification
  • Chem Labs
  • Liquid Natural Gas Plants
 

Silica gel

Silica gel is a spherical bread consisting of 97% silica and 3% alumina with a highly porous surface and a strong affinity for adsorbing water. Silica gel is also applied as a selective adsorbent for a wide-range of hydrocarbons, C02, siloxanes, sulfur, and many other compounds. Because silica gel fractures in the presence of liquid water, it is often protected with a pre-bed of activated alumina. In air and gas drying applications, dew points of -40°F and lower can be achieved with silica gel.

 

Manufacturers: Multiple

Desiccant Silica Gel
Silica Gel Desiccant

Available Sizes 

  • 1/8″
  • 3/16″
  • 1/4″
  • 1/2″
 

Quantities

  • 25lb Buckets
  • 330lb drums
  • 2000lb super sacks
  • Custom quantities

Features and Benefits

  • Dew Point (-40°F)
  • Uniform Bead Shape
  • High Adsorption capacity
  • Visual Indication of desiccant condition
 

Applications

  • Industrial Compressors
  • Tool Preservation
  • Laboratory
 

Tab Support / Bed Support

Tabular Alumina support desiccant (alumina balls) is used as a support material in air dryer desiccant beds. These are uniform spheres of activated alumina.
Tabular alumina is recrystallised or sintered activated alumina, so called because its morphology consists of large, 50-500 mm, flat tablet-shaped crystals of corundum. 

Bed Support is used to supplement Alumina performance in adsorption applications. Using bed support to replace inert media can increase cycle times and inventor life. Also helps to limit the effect of compressor oils, salts and other high MW hydrocarbons on the adsorption bed

Adsorbent beds are usually supported at the bottom with 3″-12″ depth of bed support. 3″-6″ is also recommended on the top of the adsorbent to serve as a gas flow distributor

Manufacturers: Multiple

Tab Support Desiccant
Tabular Bed Support Desiccant

Available Sizes 

  • 1/8″
  • 1/4″
  • 3/8″
  • 1/2″
 

Quantities

  • 25lb Buckets
  • 330lb drums
  • 2000lb super sacks
  • Custom quantities

Features and Benefits

  • High Crush Strength
  • Prevents migration of adsorbent
  • High containment removal
  • Low Silica Content
 

Applications

  • Compressed Air Systems
  • Process Steam purification
  • Regenerative Dryers
  • Liquid Process Equipment
 

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