Two-stage hpc process
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United States of America Patent
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Issued Date -
Dec 23, 2004
app pub date -
Aug 18, 2004
filing date -
Jun 8, 2001
priority date (Note) -
Abandoned
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Abstract
The present invention pertains to a method for hydroprocessing a heavy hydrocarbon oil, comprising bringing a heavy hydrocarbon oil in a first stage into contact with hydroprocessing catalyst I in the presence of hydrogen, after which the effluent of the first stage is contacted in whole or in part with hydroprocessing catalyst II in the presence of hydrogen. The method of the invention combines efficient contaminant removal with high residue conversion and low sediment formation. The invention also comprises a combination of catalysts for use in the above method.
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