MULTIPLE STAGE HYDRODESULFURIZATION PROCESS INCLUDING PARTIAL FEED OIL BY-PASS OF FIRST STAGE

摘要

MULTIPLE STAGE HYDRODESULFURIZATION PROCESS INCLUDING PARTIAL FEED OIL BY-PASS OF FIRST STAGE A multiple stage process for hydrodesulfurizing a residual oil comprising passing the oil downwardly through a plurality of stages in series with an interstage flashing step. A portion of the fresh feed oil continuously or intermittently by-passes the first stage and flows directly to the second stage.