Patent ID: 9725661
Date: 2017-08-08
CPC Classifications: B01J,C10G

Claim:
1. An integrated system for upgrading crude shale-derived oils produced by oil shale retorting or by in situ extraction or by mixtures thereof that includes the following: a. a fractionator for fractionating the whole shale oil into a first fraction comprising naphtha, kerosene and diesel and an atmospheric bottoms fraction comprising gas oil and residuum; b. a first-stage hydroprocessing reactor containing a hydrogenation catalyst to saturate diolefins contained in the first fraction with hydrogen and having an outlet for recovering an effluent; c. a second-stage hydroprocessing reactor configured to be operated in an upflow mode and containing catalysts to perform hydrodemetallization and saturation of mono-olefins in the effluent from the first-stage hydroprocessing reactor and having an outlet for recovering a second-stage hydroprocessing reactor effluent, wherein the first-stage hydroprocessing reactor and the second-stage hydroprocessing reactor are fluidly connected such that the effluent from the first-stage hydroprocessing reactor is fed to the second-stage hydroprocessing reactor without phase separation; d. a third-stage hydroprocessing reactor having one or more beds of catalyst to perform hydrodenitrogenation, hydrodesulfurization, hydrodeoxygenation, and aromatics saturation of the second-stage hydroprocessing reactor effluent and having an outlet for recovering a third-stage hydroprocessing reactor effluent, wherein the second-stage hydroprocessing reactor and the third-stage hydroprocessing reactor are fluidly connected such that the effluent from the second-stage hydroprocessing reactor is fed to the third-stage hydroprocessing reactor without phase separation; e. a fourth-stage hydroprocessing reactor operated in an upflow mode and containing catalysts to perform hydrodemetallization of the atmospheric bottoms fraction and having an outlet for recovering a fourth-stage reactor effluent; f. a fifth-stage hydroprocessing reactor having one or more beds of catalyst each containing a catalyst to perform one or more of hydrotreating and hydrocracking of the fourth-stage hydroprocessing reactor effluent and having an outlet for recovering a fifth-stage hydroprocessing reactor effluent, wherein the fourth-stage hydroprocessing reactor and the fifth-stage hydroprocessing reactor are fluidly connected such that the effluent from the fourth-stage hydroprocessing reactor is fed to the fifth-stage hydroprocessing reactor without phase separation; g. a separation train to recover two or more hydrocarbon fractions from the fifth-stage hydroprocessing reactor effluents of (f) and the third-stage hydroprocessing reactor effluents of (d).