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Apparatus for pyrolysis of hydrocarbons

  • US 5,147,511 A
  • Filed: 11/29/1990
  • Issued: 09/15/1992
  • Est. Priority Date: 11/29/1990
  • Status: Expired due to Fees
First Claim
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1. A furnace for cracking hydrocarbon feed to produce olefins comprising:

  • an unfired radiant superheater chamber;

    a fired radiant chamber;

    radiant burners in the fired radiant chamber;

    means for passing the flue gases from the radiant burners from the radiant chamber to the superheater chamber;

    at least one process coil having an inlet in the superheater zone and extending continuously to an outlet located in the fired radiant chamber;

    a convection chamber in direct communication with the radiant superheater chamber;

    a flue for discharging the flue gas located at the top of said convection chamber;

    convection tubes in the convection chamber upstream of and in direct communication with the inlet of the process coil; and

    an adiabatic reactor located directly on top of said fired radiant chamber and having an inlet in direct communication with the process outlet in the fired radiant chamber.

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