Title: Single-stage hydrotreating process
Application Number: 85106942 Application Date: 1985.08.09
Publication Number: 1008331 Publication Date: 1987.02.04
Approval Pub. Date: 1990.09.05 Granted Pub. Date: 1990.09.05
International Classifi-cation: B01J23/84;C10G45/04
Applicant(s) Name: Shell Internationale Research Maatschappij B.V. Address:
Inventor(s) Name: Charles Terrell Adams;Don Miles Washecheck
Attorney & Agent: WU DAJIAN QUAN JING
Abstract:
    A process for catalytically hydrotreating hydrocarbon oils having a tendency to deactivate hydrotreating catalysts by coke formation, in the presence of hydrogen at elevated temp. and pressure comprises passing: (a) oils having a final b.pt. greater than 538 deg.C and contg. less than 2 % w of heptane asphaltenes, (b) oils having a final b.pt. 343 to 538 deg.C, or (c) mixtures thereof, downwardly with the hydrogen-contg. gas into a hydrotreating zone over a stacked-bed of hydrotreating catalysts under conditions suitable to convert more than 25% of H2S of a hydrotreating catalyst comprising a component from Group VIB, a Group VIII metal, metal oxide or metal sulphide and a lower zone comprising a component from Group VIB, a Group VIII metal, metal oxide or metal sulphide, and less than 0.5 % P and sepg. the reaction product from the hydrotreating zone into a hydrogen-rish gas and a liq. hydrocarbon oil having reduced sulphur and/or heavy metal content.
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