Systems and methods including hydrotreating and high-severity fluidized catalytic cracking for treating petroleum-based materials

摘要

According to at least one aspect of the present disclosure, a method of treating a heavy oil comprises introducing the heavy oil to a hydroprocessing unit, wherein the hydroprocessing unit comprises contacting the heavy oil feed with a HDM catalyst, an HDS catalyst and an HDA catalyst, thereby carrying out hydrogenation It may be operated to hydrotreat the heavy oil to form a treated effluent. The hydrotreated effluent is passed directly to the HS-FCC unit, the HS-FCC unit operable to crack the hydrotreated effluent to form a cracked effluent comprising at least one product. The decomposed effluent is discharged out of the HS-FCC unit. The heavy oil has an API specific gravity of 25 to 50 degrees and at least 20 weight percent of the hydrotreated effluent passed to the HS-FCC unit has a boiling point of less than 225°C.