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Molecular Sieve 4A


Molecular Sieve 4A

Molecular Sieve 4A is an alkali alumina silicate; which is the sodium form of the Type “A” crystal structure. Zeolite or Molecular Sieve 4A beads & Pellets have an effective pore opening of about 4o (0.4nm). The Type 4A Molecular Sieves will adsorb most molecules with a kinetic diameter of less than 4o and exclude those larger. Such absorbable molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxide and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.

Typical Chemical Formula : Na12 [(AIO2)12(SiO2) 12].XH2O

Typical Applications :
  • Naphtha drying
  • Drying of aromatics
  • Drying of liquid hydrocarbons
  • Purification of gas for catalyst regeneration
  • Isomerization feed drying
  • Natural gas drying, removing Co2
  • Drying of liquefied petroleum gas, liquefied natural gas
  • Kerosene and jet fuel drying
  • Removing CO2 from steam cracked gas
  • Treatment of acetic acid process gases
  • NH3 synthesis gas and recycle gas drying and purifying
  • Solvent drying
  • Drying and purifying H2
  • Noble gas drying
  • Drying of instrumental air

Storage Conditions : Store in a dry room. Prevention against water, acid and alkalis