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CATALYTIC CRACKING OF LIGHT NAPHTHA OVER DUAL RISER FCC REACTOR

机译:双立管FCC反应器催化裂化浅析

摘要

Systems and methods for producing light olefins and aromatics from light naphtha are disclosed. The light naphtha is fed to a first catalyst riser to crack the C5 to C7 hydrocarbons in the light naphtha stream. The cracked naphtha stream is fractionated to produce a stream comprising primarily C4 to C6 hydrocarbons or a stream comprising primarily C5 to C12 hydrocarbons. When the stream comprising primarily C4 to C6 hydrocarbons is fed to the second catalyst riser, the product stream from the second riser comprises light olefins as the main product. When the stream comprising primarily C5 to C12 hydrocarbons is fed to the second riser, the product stream from the second riser comprises aromatics as the main product.
机译:公开了用于制造光烯烃和光石脑油的芳烃的系统和方法。将光石脑油送入第一催化剂提升板,以在光石脑油流中裂解C5至C7烃。分馏裂化的石脑油流以产生主要包含C4至C6烃的物流或主要包含C5至C12烃的流。当包含主要C4至C6烃的物流被送入第二催化剂提升管时,来自第二提升管的产物流包含光烯烃作为主要产物。当将包含C5至C12烃的物流被送入第二提升管时,来自第二立管的产物流包含芳烃作为主要产物。

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