unsupported catalyst composition for hydroprocessing of hydrocarbonaceous feedstocks, process of preparation thereof and hydroprocessing

摘要

An unsupported catalyst composition which comprises one or more Group VIb metals, one or more Group VIII metals, and a refractory oxide material which comprises 50 wt% or more titania, on oxide basis, which is prepared by precipitation techniques, finds use in the hydroprocessing of hydrocarbonaceous feedstocks.