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Advanced C2-splitter feed rectifier

  • US 20080141713A1
  • Filed: 12/16/2006
  • Published: 06/19/2008
  • Est. Priority Date: 12/16/2006
  • Status: Active Grant
First Claim
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1. ) A process to separate one or more light hydrocarbon streams comprising ethylene, ethane, and C3+ hydrocarbons into an ethylene stream, an ethane stream, and a C3+ hydrocarbon stream, comprising:

  • feeding the light hydrocarbon streams to a deethanizer;

    separating the light hydrocarbons in the deethanizer to form a C3+ hydrocarbon bottoms stream and a C2-rich overhead stream comprising ethylene and ethane;

    separating the C2-rich stream in a C2-rectifier to form a first ethylene stream and an ethane-rich bottoms stream; and

    separating the ethane-rich bottoms stream in a C2-splitter to form a second ethylene stream and an ethane stream.

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