Technology Unit

The PRS is followed by a Series of Fixed-Bed Reactors comprising a Transition Section and the final Hydrotreating Section for HydroDeSulfurization (HDS), HydroDeNitrogenation (HDN) and CCR reduction through HyDrotreating (HDCCR).

The Transition Section completes the Demetallization (HDM) Process and initiates the Deep Hydrotreating Phase. The Transition Catalyst has dual function characteristics which are between those found in the HDM and the Hydrotreating Sections with respect to Demetallization and Refining.

With most major Contaminants removed at the Outlet of the Transition Section, the Residue is sent to the Final Refining Section, where Sulfur and CCR Levels are reduced to the very low design specifications.