Patent ID: 9688925
Date: 2017-06-27
CPC Classifications: B01J,C10G

Claim:
1. A method of dewaxing a distillate fuel oil comprising: hydroprocessing a distillate fuel oil stream in a reactor to produce a distillate fuel oil stream that is at least partially hydroprocessed, wherein the reactor has an upstream hydroprocessing zone comprising a first catalyst bed, a subsequent hydroprocessing zone comprising a second catalyst bed, and a distributor tray between the upstream hydroprocessing zone and the subsequent hydroprocessing zone; and feeding at least a portion of the distillate fuel oil stream that has been at least partially hydroprocessed to a cavitation unit wherein the portion of the distillate fuel oil stream is subjected to cavitation to reduce the pour point, reduce the cloud point, reduce the cold filter plugging point, or a combination thereof of the portion of the distillate fuel oil stream, and wherein the portion of distillate fuel oil stream fed to the cavitation unit is collected from the distributor tray.