3123457

Information

• Patent Grant
• 3123457

• References
• Source

• Patent Number

  3,123,457

• Date Filed

  Not available

• Date Issued

  Tuesday, March 3, 1964
  60 years ago

• CPC

  • F25J3/04278 - using external refrigeration units
  • F25J3/04163 - Hot end purification of the feed air
  • F25J3/04169 - by adsorption of the impurities
  • F25J3/04218 - Parallel arrangement of the main heat exchange line in cores having different functions
  • F25J3/04224 - Cores associated with a liquefaction or refrigeration cycle
  • F25J3/04242 - Cold end purification of the feed air
  • F25J3/04357 - and comprising a gas work expansion loop
  • F25J3/04393 - using multiple or multistage gas work expansion
  • F25J3/04412 - in a classical double column flowsheet
  • F25J3/04678 - cooled by oxygen enriched liquid from high pressure column bottoms
  • F25J3/04878 - Side by side arrangement of multiple vessels in a main column system, wherein the vessels are normally mounted one upon the other or forming different sections of the same column
  • F25J2200/52 - in the high pressure column of a double pressure main column system
  • F25J2200/54 - in the low pressure column of a double pressure main column system
  • F25J2205/02 - using simple phase separation in a vessel or drum
  • F25J2205/24 - using regenerators, cold accumulators or reversible heat exchangers
  • F25J2205/30 - using a washing
  • F25J2205/60 - using adsorption on solid adsorbents
  • F25J2235/42 - the fluid being nitrogen
  • F25J2245/42 - the recycled stream being nitrogen
  • F25J2250/10 - Boiler-condenser with superposed stages
  • F25J2250/20 - Boiler-condenser with multiple exchanger cores in parallel or with multiple re-boiling or condensing streams
  • F25J2250/42 - One fluid being nitrogen
  • F25J2250/52 - One fluid being oxygen enriched compared to air
  • F25J2250/58 - One fluid being argon or crude argon
  • F25J2270/90 - External refrigeration
  • Y10S62/909 - Regeneration
  • Y10S62/924 - Argon

• US Classifications

  • 062 - Refrigeration