GRADED CATALYST BED FOR SPLIT-FEED HYDROCRACKING/HYDROTREATING

摘要

A method for hydroprocessing hydrocarbon products, preferably Fischer-Tropsch products, and a reactor useful for performing the method, are disclosed. The reactor includes one or more first catalyst beds (30) comprising a catalyst useful for conducting relatively severe hydroprocessing. The second catalyst beds (45) are located at a position in the reactor where they can receive the products from the first catalyst bed(s) (30), at least one of each of the first (30) and second (45) catalyst bed(s) comprises a catalyst grading scheme sufficient to remove at least a portion of any particulates from their respective feeds. A first hydrocarbon feed (20) with a relatively high boiling point is introduced to the first catalyst bed(s) (30) and is subjected to a relatively severe hydroprocessing. A feed comprising the products from the hydroprocessing of the first hydrocarbon feed and a second hydrocarbon feed (15) with a relatively low boiling point is introduced to the second catalyst beds (45) and is subjected to relatively mild hydroprocessing.