To provide a method for producing hydrocarbons by processing heavy hydrocarbon oils without modifying existing facilities and effective for improving yields of 3C and 4C hydrocarbons and gasoline fraction, reducing the yield of a catalytic cracking residue and decreasing C heavy oil production.
An atmospheric distillation residue L1 obtained by treating crude oil with an atmospheric distillation apparatus is treated with a direct desulfurization apparatus 1 to obtain a direct desulfurization atmospheric residue. The direct desulfurization atmospheric residue is treated with a vacuum distillation apparatus 2 to obtain direct desulfurization vacuum gas oil L5 and direct desulfurization vacuum residue L6. A mixed oil containing the direct desulfurization vacuum gas oil L5, a direct desulfurization atmospheric residue L4a and an indirect desulfurization vacuum gas oil L7 is treated with a fluidized catalytic residue cracker 3 to obtain a fuel gas, 3C and 4C hydrocarbons, a gasoline fraction, kerosene fraction, gas oil fraction and catalytic cracking residue.
SUZUKI TATSUHIRO
MIYAZAKI SEIJI
MORITA YOSHIFUMI
AKAGI YASUMORI
| JP2003238970A | 2003-08-27 | |||
| JPH05230473A | 1993-09-07 |
Yoshiki Kuroki
Yoshinori Shimizu
Hiroyuki Hirano