3375673

Information

• Patent Grant
• 3375673

• References
• Source

• Patent Number

  3,375,673

• Date Filed

  Not available

• Date Issued

  Tuesday, April 2, 1968
  56 years ago

• CPC

  • F25J3/04412 - in a classical double column flowsheet
  • F25J3/04309 - of nitrogen
  • F25J3/04315 - Lowest pressure or impure nitrogen, so-called waste nitrogen expansion
  • F25J3/04393 - using multiple or multistage gas work expansion
  • F25J3/04854 - Safety aspects of operation
  • F25J2200/20 - in an elevated pressure multiple column system wherein the lowest pressure column is at a pressure well above the minimum pressure needed to overcome pressure drop to reject the products to atmosphere
  • F25J2200/52 - in the high pressure column of a double pressure main column system
  • F25J2205/24 - using regenerators, cold accumulators or reversible heat exchangers
  • F25J2205/60 - using adsorption on solid adsorbents

• US Classifications

  • 062 - Refrigeration