SYLOBEAD^® Adsorbents
for Petrochemical Drying and Purification

The petrochemical industry uses molecular sieves for the purification of feedstock and the drying and removal of impurities from products such as ethylene and propylene

This is required for the protection of catalysts in downstream conversion units as well as to avoid freezing in cryogenic systems.

The following are some of the most common applications in the petrochemical industry:

• Cracked gas drying: In order to prevent freezing, Grace Davison has developed a special SYLOBEAD^® 3A molecular sieve, which dries cracked gas without co-adsorption of olefins
• Grace molecular sieves can also be used to dry hydrogen gas for acetylene converters
• Drying and purification of olefins
  (removal of CO₂ and oxygenates)
• Dehydration and purification of a wide variety of solvents