Technical transformation of changing coking gasoline and diesel hydrotreating unit to aviation kerosene hydrotreating unit

The technical transformation of changing coking gasoline and diesel hydrotreating unit to aviation kerosene hydrotreating unit of a certain petrochemical company was introduced. The calibration results showed that after technical transformation, the refined aviation kerosene met the quality specification of No.3 jet fuel using FHUDS-2 hydrofining catalyst at the process operation conditions of reactor inlet temperature 257.2 ℃, reaction pressure 3.03 MPa, volume space velocity 1.58 h^-1, and hydrogen to oil ratio 208.1. The unit energy consumption was 840.90 MJ/t, which was 53.99 MJ less than design value. The yield of refined aviation kerosene reached 99.91%, the unit was stable in operation, and the technical transformation achieved expected purpose.