Petrochemical And Natural Gas Absorbents

Petrochemical Applications

• Cracked gas drying in order to prevent freezing
• Drying hydrogen gas for acetylene converters
• Drying and purification of olefins (removal of CO2 and oxygenates)
• Dehydration and purification of a wide variety of solvents

Refining Applications

• Hydrocarbon gas drying prior to cryogenic extraction of LPG to prevent ice and hydrate formation
• Alkylation and isomerization feed drying: removal of water for catalyst protection and corrosion prevention
• Drying and purification of feed streams for MTBE and butamer production
• LPG sweetening and butane destenching
• Use as non-regenerative chloride traps to prevent corrosion and contamination from attacking catalysts downstream
• Dehydration of hydrogen in reformer regeneration train 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

• Natural gas drying prior to cryogenic processing or turbo expansion with SYLOBEAD® molecular sieves
• Natural gas sweetening for removal of H2S and mercaptans to meet pipeline specifications with molecular sieves
• Hydrocarbon dew point control and recovery. Grace supplies hydrocarbon grade silica gel for NGL extraction where hydrocarbon dew point specifications need to be met
• Sour natural gas drying with a modified synthetic SYLOBEAD® molecular sieve to meet transmission specifications to the sulfur removal unit