PROCESSES FOR RECOVERING HYDROCARBONS FROM A DRAG STREAM FROM A SLURRY HYDROCRACKER

摘要

A process for recovering hydrocarbons from a slurry hydrocracking reactor. The hydrocarbons are recovered by taking a drag stream of the slurry in the reactor. After separating lighter hydrocarbons in a separation zone, the heavier hydrocarbons can be processed in a deashing zone, with a vacuum column bottoms from a separation of the effluent stream recovered from the reactor. The deashing zone can recover the heavier hydrocarbons in a deashed pitch. Additionally, a VGO rich stream from the deashing zone may be recycled back to the reactor.

主权项

1. A process for recovering hydrocarbons from a hydrocracking zone, the process comprising:
cracking a feed stock in a hydrocracking zone to produce a converted hydrocarbon stream, the hydrocracking zone comprising a slurry hydrocracker; removing a drag stream from the hydrocracking zone, the drag stream comprising a mixture of catalyst, coke, converted hydrocarbons, and unconverted hydrocarbons; separating the drag stream into a vapor portion and a liquid portion, the vapor portion of the drag stream comprising converted hydrocarbons; and, separating HVGO from the liquid portion of the drag stream.