Patent ID: 9605217
Date: 2017-03-28
CPC Classifications: C10G

Claim:
1. A method for processing a heavy oil feedstock, comprising: providing a heavy oil feedstock having a 10% distillation point of at least about 650° F. (343° C.); exposing the heavy oil feedstock to a catalyst under first effective slurry hydroconversion conditions to form an effluent comprising at least a first plurality of liquid products and a bottoms product, the first effective slurry hydroconversion conditions comprising a hydrogen partial pressure of about 1500 psig (10.3 MPag) or less; exposing at least a portion of the bottoms product to the catalyst under second effective slurry hydroconversion conditions comprising hydrogen partial pressure of at least about 2000 psig (13.8 MPag) to form at least a second plurality of liquid products and a second bottoms product; and recycling at least a portion of the second bottoms product, the recycled portion of the second bottoms product being combined with the heavy oil feedstock prior to exposing the heavy oil feedstock under the first slurry hydroconversion conditions.