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Fractionator system for delayed coking process

  • US 5,824,194 A
  • Filed: 01/07/1997
  • Issued: 10/20/1998
  • Est. Priority Date: 01/07/1997
  • Status: Expired due to Fees
First Claim
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1. A method of separating coker drum vapors, comprising:

  • introducing coker drum vapors into a flash zone of a coker fractionating column having multiple separation trays above the flash zone;

    removing a light coker gas oil stream from the coker fractionating column at a first draw near an upper separation tray;

    removing a heavy coker gas oil stream from the coker fractionating column at a second draw near a lower separation tray;

    removing a middle liquid stream from the coker fractionating column at a middle port between the first and second draws;

    cooling the middle liquid stream; and

    reintroducing the cooled middle liquid stream to the coker fractionator column above the middle port.

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