2458894

Information

• Patent Grant
• 2458894

• References
• Source

• Patent Number

  2,458,894

• Date Filed

  Not available

• Date Issued

  Tuesday, January 11, 1949
  76 years ago

• CPC

  • F25J1/0236 - providing refrigeration for different processes treating not the same feed stream
  • F25B9/10 - with several cooling stages
  • F25J1/0007 - Helium
  • F25J1/005 - by expansion of a gaseous refrigerant stream with extraction of work
  • F25J1/0052 - by vaporising a liquid refrigerant stream
  • F25J1/0065 - Helium
  • F25J1/0204 - as a single flow SCR cycle
  • F25J1/025 - Details related to the refrigerant production or treatment
  • F25J1/0261 - Details of cold box insulation, housing and internal structure
  • F25J1/0265 - comprising cores associated exclusively with the cooling of a refrigerant stream
  • F25J3/04278 - using external refrigeration units
  • F25J3/044 - using a single pressure main column system only
  • F25J2200/50 - using multiple (re-)boiler-condensers at different heights of the column
  • F25J2200/74 - Refluxing the column with at least a part of the partially condensed overhead gas
  • F25J2270/16 - with mutliple gas expansion loops of the same refrigerant
  • F25J2270/30 - Quasi-closed internal or closed external helium refrigeration cycle

• US Classifications

  • 062 - Refrigeration