3407146

Information

• Patent Grant
• 3407146

• References
• Source

• Patent Number

  3,407,146

• Date Filed

  Not available

• Date Issued

  Tuesday, October 22, 1968
  56 years ago

• CPC

  • C01B3/025 - Preparation or purification of gas mixtures for ammonia synthesis
  • F25J3/0219 - Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
  • F25J3/0276 - separation of H2/N2 mixtures
  • F25J2200/02 - in a single pressure main column system
  • F25J2200/74 - Refluxing the column with at least a part of the partially condensed overhead gas
  • F25J2210/12 - Refinery or petrochemical off-gas
  • F25J2210/14 - Coke-ovens gas
  • F25J2210/42 - Nitrogen
  • F25J2250/10 - Boiler-condenser with superposed stages
  • F25J2270/12 - External refrigeration with liquid vaporising loop
  • F25J2270/42 - Quasi-closed internal or closed external nitrogen refrigeration cycle
  • F25J2270/904 - by liquid or gaseous cryogen in an open loop
  • Y10S62/92 - Carbon monoxide
  • Y10S62/934 - From nitrogen

• US Classifications

  • 252 - Compositions
  • 062 - Refrigeration
  • 423 - Chemistry of inorganic compounds