Patent ID: 11965135
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 18:
19. The method of claim 2, wherein:
each of the (n−2)th fraction, the (n−1)th fraction, and the nth fraction independently comprise dissolved hydrogen;
the hydrocarbon feed comprises a crude oil fraction;
at least 50 wt. % of hydrocarbons in the hydrocarbon feed boil at a temperature of between 180° C. and 370° C., based on the total weight of hydrocarbons in the hydrocarbon feed;
n is equal to 3;
at least 50 wt. % of hydrocarbons in the (n−2)th fraction boil at a temperature of between 180° C. and 260° C., based on the total weight of hydrocarbons in the (n−2)th fraction;
at least 50 wt. % of hydrocarbons in the (n−1)th fraction boil at a temperature of between 260° C. and 316° C., based on the total weight of hydrocarbons in the (n−1)th fraction;
at least 50 wt. % of hydrocarbons in the nth fraction boil at a temperature of between 316° C. and 370° C., based on the total weight of hydrocarbons in the nth fraction;
the nth effluent comprises less than 10 parts per million by weight (ppmw) of sulfur and less than 10 ppmw of nitrogen;
the (n−2)th hydroprocessing reaction zone is operated with a greater liquid hourly space velocity (LHSV) than the (n−1)th hydroprocessing reaction zone; and
the (n−1)th hydroprocessing reaction zone is operated with a greater LHSV than the nth hydroprocessing reaction zone.