Apparatus for pyrolysis of hydrocarbons
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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Abstract
An improved hydrocarbon pyrolysis process and apparatus for the production of ethylene comprising a novel furnace comprised of an unfired superheater radiant section and a fired radiant section, adiabatic tube reactor and quench boiler is provided.
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Citations
12 Claims
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1. A furnace for cracking hydrocarbon feed to produce olefins comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A cracking furnace comprised of
a radiant chamber; -
an adiabatic reactor downstream of and located directly on top of the radiant chamber; a process coil means extending through the radiant chamber; a process tube means within the adiabatic reactor; and means for connecting the process coil means within the radiant chamber to the process tube means within the adiabatic reactor. - View Dependent Claims (9, 10, 11, 12)
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Specification