PROCESS FOR CATALYTIC HYDROPROCESSING BLACK OIL

Methods of starting up and shutting down reactors used in hydrocracking and hydrodesulfurization of black oils. The reactor is flushed with a heavy vacuum gas oil between the circulation of the black oil feed stream and the lighter hydrocarbon stream used during the low temperature portion of the op...

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Bibliographische Detailangaben
Hauptverfasser: F. STOLFA, M.D. WINFIELD
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Methods of starting up and shutting down reactors used in hydrocracking and hydrodesulfurization of black oils. The reactor is flushed with a heavy vacuum gas oil between the circulation of the black oil feed stream and the lighter hydrocarbon stream used during the low temperature portion of the operations.