Two-way catalytic system for boiling bed improvement to produce improved quality decompression residual oil products

摘要

An ebullated bed hydroprocessing system is improved to improve the quality of vacuum residue using a dual catalyst system comprising a heterogeneous catalyst and dispersed metal sulfide particles. The improved quality of the vacuum residue is: viscosity reduction, density reduction (API specific gravity increase), asphaltene content reduction, residual carbon content reduction, sulfur content reduction, and sediment reduction. Brought about by one or more of Improved quality vacuum residue can be produced while operating the improved ebullated bed reactor at equal or higher severity, temperature, throughput and / or conversion. Similarly, an equivalent or higher quality vacuum residue can be produced while operating the improved ebullated bed reactor at higher severity, temperature, throughput and / or conversion. [Selection] Figure 2B