Refrigeration – Processes – Circulating external gas
Patent
1989-04-05
1990-02-13
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 28, 62 32, F25J 302
Patent
active
049003470
ABSTRACT:
A cyrogenic technique for recovering ethene from a gaseous mixture containing methane, ethane, etc. Operating methods and apparatus are provided for passing the gas feed through a chilling train having a series of dephlegmator-type exchange units to condense liquid rich in ethene and ethane, while separating a major portion of methane and lighter gas. A multizone demethanizer removes condensed methane from the C.sub.2 fraction to provide a pure product economically.
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McCue, Jr. Richard H.
Pickering, Jr. John L.
Capossela Ronald C.
McKillop Alexander J.
Mobil Corporation
Speciale Charles J.
Wise L. Gene
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