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

Claim 0:
1. An integrated refinery process comprising:
catalytically reforming naphtha-range hydrocarbons to produce reformate containing C6-C8 aromatic hydrocarbons, wherein the naphtha-range hydrocarbons are obtained from a source within the refinery selected from the group consisting of
a first naphtha source consisting of naphtha-range hydrocarbons derived from naphtha hydrotreating of straight run naphtha,
a second naphtha source consisting of naphtha-range hydrocarbons derived from hydrocracking of straight run middle distillates,
a third naphtha source consisting of naphtha-range hydrocarbons derived from treatment of vacuum gas oil by (a) hydrocracking of vacuum gas oil or (b) fluid catalytic cracking of vacuum gas oil,
a fourth naphtha source consisting of naphtha-range hydrocarbons derived from treatment of vacuum residue by (a) residue hydrotreating of vacuum residue followed by hydrocracking of hydrotreated vacuum residue, (b) residue hydrotreating of vacuum residue followed by fluid catalytic cracking of hydrotreated vacuum residue, or (c) coking of vacuum residue,
combinations comprising of two or more of the foregoing, and
combinations comprising one or more of the foregoing and an additional deeply hydrotreated naphtha source; 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, on a catalyst support, 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.