Integration Process of Residue Hydrotreating and Catalytic Cracking (RICP)

Integration Process of Residue Hydrotreating Combined with Catalytic Cracking (RICP) in a simple but effective way solve the technical problems in the traditional process of residue hydrotreating combined with catalytic cracking. 
By adopting RICP technology, the performances of residue hydrotreating unit and catalytic cracking unit are both improved. In the residue hydrotreating (RHT) unit, by adding the low viscosity and high aromatic FCC heavy cycle oil (HCO) into residue feedstock, the asphaltene precipitation and deposition are inhibited and thus the amount of coke on the catalyst is reduced. These effects improve the performance of catalyst in the hydrotreating unit and thus improve the reaction of impurities removal, which in return results in better quality feedstock for catalytic cracking. Meanwhile polycyclic aromatics in HCO has been saturated with high content of hydrogen. In the catalytic cracking unit, the cracking reactions are improved due to the better quality of hydrogenated heavy oil and saturated HCO. Hence, the total liquid yield increases and coke yield falls, which significantly improves the economically performance of Residue Fluid Catalytic Cracking (RFCC).