SYLOBEAD^® Drying / Purification Adsorbents
for Refining Applications

Molecular sieves are used regularly for the drying and purification of feedstocks for refinery applications such as

• Isomerization,
• Alkylation, and
• Reforming,

thereby improving operating performance and product quality.
These processes often use catalysts sensitive to impurities in the feed
which need to be protected by a feed purification step using SYLOBEAD^® molecular sieves.
In addition, the removal of other impurities with molecular sieves can improve the quality of the final product.

Examples for the variety of applications in this field:

• Hydrocarbon gas drying with molecular sieves, prior to cryogenic extraction of LPG, to avoid ice and hydrate formation
• Alkylation and isomerization feed drying: Removal of water for catalyst protection and corrosion prevention using molecular sieves
• Drying and purification of feed streams for MTBE and butamer production
• LPG sweetening and butane destenching
• Molecular sieves also function as non-regenerative chloride traps to prevent chloride contamination from attacking catalysts downstream and to avoid corrosion
• Dehydration of hydrogen in reformer regeneration train dehydration of FCC off-gases
• Purification in the hydrogen PSA unit including dehydration, hydrocarbon recovery, and removal of CO₂, CO, and other compounds
• Separation of normal and iso-paraffins: For detergent and fuel production

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