Abstract: The platform of NATURE preparation technology for the cost-effective residue hydrotreating catalysts has been newly founded by SINOPEC Research Institute of Petroleum Processing. Based on this platform, RCS-202 catalyst with high performance-price ratio was developed by designing the pore structure, surface properties and active phase structure according to the molecular structure and reaction characteristics of carbon residue precursors in residue. The evaluation results showed that compared with the previous generation of industrial catalysts, the bulk density of the newly developed RCS-202 series catalyst was reduced by 20%, while the activity and stability of carbon residue reduction and HDS activities were improved significantly. Meanwhile, the characterization results showed that compared with the previous generation catalysts RCS-202 catalyst had higher pore volume and specific surface area, larger proportion of NiMoS phase in sulfided form, and lower carbon deposition after reactions. All of these structural characteristics have resulted in the cost-effective feature of the new RCS-202 series catalysts.

Key words: residue, carbon residue, hydrotreating, catalyst, cost-effective