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Siliporite® Airsiev P Series for Air Separation Units

Product overview
Airsiev® P grade are synthetic molecular sieves designed to purify air (CO2 and H2O removal) upstream of the Air Separation Units. Airsiev® P grade is a Sodium based product.
Geographic availability
  • Africa
  • Asia Pacific
  • Europe
  • Latin America and the Caribbean
  • Middle East
  • Northern America
  • Oceania

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Your value-added partnership with Arkema, the worldwide molecular sieves supplier

Since 1958 Arkema has been a major player in molecular sieves and a renowned expert in the field with its Siliporite® registered trademark.

Air prepurification for cryogenic distillation

In Air Separation Units (ASU), the first step is to remove water, carbon dioxide, nitrogen oxide and hydrocarbons using a Pressure Swing Adsorption Process (PSA). This is achieved with molecular sieves such as Arkema’s Airsiev® products.

Downstream, air is processed in a cryogenic distillation column to produce pure nitrogen (N2), oxygen (O2) and argon (Ar). The molecular sieves unit is a very critical step of the process to avoid any damage to the cryogenic section.