PROCESS FOR INITIATING AND STOPPING THE OPERATION OF THE CATALYTIC REACTION ZONE FOR THE CONVERSION OF BLACK OILS

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: WINFIELD M.D, STOLFA F
Format: Patent
Sprache:eng
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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.