3649558

Information

• Patent Grant
• 3649558

• References
• Source

• Patent Number

  3,649,558

• Date Filed

  Not available

• Date Issued

  Tuesday, March 14, 1972
  52 years ago

• CPC

  • F25J3/0276 - separation of H2/N2 mixtures
  • C01B3/025 - Preparation or purification of gas mixtures for ammonia synthesis
  • C01B3/386 - Catalytic partial combustion
  • C01B3/50 - Separation of hydrogen or hydrogen containing gases from gaseous mixtures
  • F25J3/0219 - Refinery gas, cracking gas, coke oven gas, gaseous mixtures containing aliphatic unsaturated CnHm or gaseous mixtures of undefined nature
  • F25J3/0233 - separation of CnHm with 1 carbon atom or more
  • C01B2203/0465 - Composition of the impurity
  • C01B2203/047 - the impurety being carbon monoxide
  • C01B2203/0475 - the impurety being carbon dioxide
  • C01B2203/0485 - the impurety being a sulfur compound
  • F25J2200/74 - Refluxing the column with at least a part of the partially condensed overhead gas
  • F25J2200/90 - Details relating to column internals
  • F25J2210/12 - Refinery or petrochemical off-gas
  • F25J2210/14 - Coke-ovens gas
  • F25J2245/02 - Recycle of a stream in general
  • F25J2270/04 - Internal refrigeration with work-producing gas expansion loop
  • Y10S62/934 - From nitrogen

• US Classifications

  • 252 - Compositions
  • 062 - Refrigeration
  • 095 - Gas separation: processes
  • 423 - Chemistry of inorganic compounds