Patent ID: 11884888
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Chemical engineering (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 14:
15. An integrated refinery process comprising:
separating crude oil by atmospheric distillation into at least straight run naphtha, middle distillates, and atmospheric residue;
separating atmospheric residue by vacuum distillation into at least vacuum gas oil and vacuum residue;
hydrotreating the straight run naphtha to produce hydrotreated naphtha as a first naphtha source;
hydrocracking the middle distillates to produce at least naphtha-range hydrocarbons as a second naphtha source;
treating at least a portion of the vacuum gas oil to produce at least naphtha-range hydrocarbons as a third naphtha source, wherein treating is by hydrocracking or fluid catalytic cracking;
optionally subjecting one or more of the first, second and third naphtha sources deep hydrodesulfurization and deep hydrodenitrogenation;
catalytically reforming all or a portion of naphtha from the first, second and third naphtha sources, optionally subjected to deep hydrodesulfurization and deep hydrodenitrogenation, to produce reformate; and
reacting all or a portion of the reformate in the presence of a hydrogenation catalyst containing 0.01-5 wt % of one or more active metal components selected from Pt, Pd, Re and a combination comprising at least two of Pt, Pd or Re, and on a support containing zeolite at a concentration range of 0.1-20 wt %, at conditions including at a reactor temperature (° C.) in the range of from about 250-320, at a hydrogen partial pressure (bar) in the range of from about 40-100, at a hydrogen gas feed rate (standard liters per liter of hydrocarbon feed, SLt/Lt) of up to about 500-3000, and at a liquid hourly space velocity (h−1), on a fresh feed basis relative to the hydrogenation catalysts, in the range of from about 0.1-5.0, the catalyst and conditions being effective to produce a liquid hydrogenation effluent hydrogen carrier in which at least about 95-99.9 wt % of C6-C8 aromatic hydrocarbons in the reformate are converted to cyclohexanes.