DOUBLE CATALYTIC SYSTEM FOR ENRICHING A BOILING LAYER FOR PRODUCING A PRODUCT OF VACUUM RESIDUES OF MORE HIGH QUALITY

摘要

The fluidized bed hydroprocessing system is enriched with a dual catalyst system that contains a heterogeneous catalyst and dispersed metal sulfide catalyst particles to improve the quality of vacuum residues. Higher quality vacuum residues can be achieved by one or more of reduced viscosity, reduced density (increased density in degrees API), reduced asphaltene content, reduced carbon residue, reduced sulfur content and reduced sludge content. Vacuum residues of higher quality can be obtained by operating the reactor with an enriched fluidized bed at the same or higher stiffness, temperature, throughput and / or conversion. Similarly, vacuum residues of the same or higher quality can be obtained by operating the enriched fluidized bed reactor at higher stiffness, temperature, throughput and / or conversion.