Patent ID: 8287720

Claim:
A process for upgrading resid, comprising: feeding hydrogen and a resid hydrocarbon to a first reactor containing a first hydrocracking catalyst; contacting the resid and hydrogen in the presence of the hydrocracking catalyst at conditions of temperature and pressure to crack at least a portion of the resid; recovering an effluent from the first reactor; feeding hydrogen and a deasphalted oil fraction to a second reactor containing a second hydrocracking catalyst; contacting the deasphalted oil fraction and hydrogen in the presence of the second hydrocracking catalyst at conditions of temperature and pressure to crack at least a portion of the deasphalted oil; recovering an effluent from the second reactor; fractionating the first reactor effluent and the second reactor effluent to form at least one distillate hydrocarbon fraction and at least one resid hydrocarbon fraction; feeding the at least one resid hydrocarbon fraction to a solvent deasphalting unit to provide an asphaltene fraction and the deasphalted oil fraction; wherein the fractionating comprises: separating the first and second reactor effluents in a high pressure high temperature separator to provide a gas phase product and a liquid phase product; separating the liquid phase product in an atmospheric distillation tower to recover a fraction comprising hydrocarbons boiling in a range of atmospheric distillates and a first bottoms fraction comprising hydrocarbons having a normal boiling point of at least 340Â° C.; separating the bottoms fraction in a vacuum distillation tower to recover a fraction comprising hydrocarbons boiling in a range of vacuum distillates and a second bottoms fraction comprising hydrocarbons having a boiling temperature of at least 480Â° C.; feeding the second bottoms fraction to the solvent deasphalting unit as the resid hydrocarbon fraction.