3775988

Information

• Patent Grant
• 3775988

• References
• Source

• Patent Number

  3,775,988

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1973
  51 years ago

• CPC

  • F25J3/04248 - Generation of cold for compensating heat leaks or liquid production
  • F25J1/004 - by flash gas recovery
  • F25J1/0045 - by vaporising a liquid return stream
  • F25J1/0202 - in a quasi-closed internal refrigeration loop
  • F25J1/0257 - Construction and layout of liquefaction equipments
  • F25J3/0209 - Natural gas or substitute natural gas
  • F25J3/0295 - Start-up or control of the process; Details of the apparatus used
  • F25J3/04054 - of air
  • F25J3/044 - using a single pressure main column system only
  • F25J3/04412 - in a classical double column flowsheet
  • F25J3/061 - Natural gas or substitute natural gas
  • F25J3/0695 - Start-up or control of the process; Details of the apparatus used
  • F25B9/04 - using vortex effect
  • F25J2200/06 - in a classical double column flow-sheet
  • F25J2200/70 - Refluxing the column with a condensed part of the feed stream
  • F25J2205/10 - using combined expansion and separation, e.g. in a vortex tube, "Ranque tube" or a "cyclonic fluid separator"
  • F25J2210/04 - Mixing or blending of fluids with the feed stream
  • F25J2230/08 - Cold compressor
  • F25J2230/30 - Compression of the feed stream
  • F25J2245/02 - Recycle of a stream in general
  • F25J2245/42 - the recycled stream being nitrogen
  • F25J2270/04 - Internal refrigeration with work-producing gas expansion loop
  • Y10S62/91 - Expander

• US Classifications

  • 062 - Refrigeration