Process for pyrolysis of hydrocarbons
First Claim
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1. A process for producing olefins from hydrocarbon feed selected from naphtha, atmospheric gas oils and vacuum gas coils comprising the steps ofdelivering hydrocarbon feed to process coils passing through an unfired radiant superheater zone heated with radiant heat from the flue gases of a downstream fired radiant zone;
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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.
41 Citations
10 Claims
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1. A process for producing olefins from hydrocarbon feed selected from naphtha, atmospheric gas oils and vacuum gas coils comprising the steps of
delivering hydrocarbon feed to process coils passing through an unfired radiant superheater zone heated with radiant heat from the flue gases of a downstream fired radiant zone; - and
delivering the hydrocarbon feed from the unfired radiant superheater zone to a fired radiant zone in the process coils extending from the superheater zone through the fired zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for producing olefins from hydrocarbon feed selected from naphtha, atmospheric gas oils and vacuum gas oils comprising the following steps:
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delivering hydrocarbon feed to process coils passing through an unfired radiant superheater zone heated with radiant heat from the flue gases of a downstream fired radiant zone to convert less than 20% of the hydrocarbon feed; and delivering the partially converted hydrocarbon feed from the unfired radiant superheater zone to a fired radiant zone in process coils extending from the superheater zone through the fired radiant zone to provide an exit conversion of said feed of less than 65%.
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Specification