Patent ID: 6451200
Filing Date: 2002-09-17
Classification: B01J,C01F,C01P,Y10T

Abstract:
In a process for the hydroprocessing of petroleum feedstock wherein said feedstock is contacted with hydrogen under pressure in the presence of a supported hydroprocessing catalyst, the improvement comprising utilizing porous agglomerate particles as the support for the supported catalyst wherein said porous agglomerate particles comprise constituent composite particles of a swellable clay component intimately dispersed within an aluminum oxide component wherein:(A) the agglomerate particle size is from about 0.5 to about 5 mm; (B) the aluminum oxide component comprises at least 75 wt. % alumina, at least 3.75 wt. % of which aluminum oxide component is in the form of crystalline boehmite, gamma alumina derived from the crystalline boehmite, or mixtures thereof; and (C) the swellable clay component is present within the aluminum oxide component at an amount (i) of less than 10 wt. %, based on the combined weight of the aluminum oxide and swellable clay components, and (ii) effective to increase at least one of the hydrothermal stability, mercury pore volume, and the mercury mesopore pore mode of the agglomerate particles relative to the corresponding hydrothermal stability, pore volume and mesopore pore mode of the agglomerate particles in the absence of the swellable clay.