Patent ID: 11866657
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method of processing a hydrocarbon fraction, the method comprising:
hydrotreating the hydrocarbon feedstock in a low-severity hydrotreater to produce a first effluent, and
hydrotreating the first effluent, or a portion thereof, in a high-severity hydrotreater to produce a low contaminant product; wherein
the low-severity hydrotreater operates at a catalyst volume of less than 60% of a catalyst volume of the high-severity hydrotreater;
the low-severity hydrotreater operates at a hydrogen partial pressure of at least 5 bar lower than the hydrogen partial pressure in the high-severity hydrotreater; and
the low-severity hydrotreater operates at a weighted average bed temperature (“WABT”) of at least 5° C. less than the WABT of the high-severity hydrotreater.