Shell Oil Comapny

Shell Internationale Research Maatschappij, B.v.

Russell Craig Ackerman

Christian Gabriel Michel

John Anthony Smegal

Johannes Anthonius Robert Van Veen

Josiane Marie-Rose Ginestra

Josiane M Ginestra

A method of hydroprocessing a heavy hydrocarbon feedstock using a hydroprocessing catalyst having specific properties making it effective in the hydroconversion of at least a portion of the heavy hydrocarbon feedstock to lighter hydrocarbons. The hydroprocessing catalyst comprises a Group VIB metal component (e.g., Cr, Mo, and W), a Group VIII metal component (e.g., Ni and Co) and, optionally, a potassium metal component that are supported on a support material comprising alumina. The alumina has novel physical properties that, in combination with the catalytic components, provide for the hydroprocessing catalyst. The hydroprocessing catalyst is particularly effective in the conversion of the heavy hydrocarbon feedstock. The alumina is characterized as having a high pore volume and a high surface area with a large proportion of the pore volume being present in the pores within a narrow pore diameter distribution about a narrowly defined range of median pore diameters. The support material preferably does not contain more than a small concentration of silica. The alumina component is preferably made by a specific method that provides for an alumina having the specific physical properties required for the hydroprocessing catalyst.

Process and catalyst for the hydroconversion of a heavy hydrocarbon feedstock

Disclosed is a composition useful in the saturation of aromatics contained in a hydrocarbon feedstock. The composition includes a support composition having a high macroporosity of greater than 51 percent. The support composition comprises an amorphous silica-alumina having unique properties.

Aromatics hydrogenation catalyst and a method of making and using such catalyst

Described is a novel amorphous silica-alumina composition having a high ratio of pore volume contained in large pores to pore volume contained in medium to small pores. The amorphous silica-alumina composition also may have the characteristic of a strong aluminum-NMR penta-coordinated peak representing greater than 30% of the total aluminum and a method of making such novel amorphous silica-alumina composition using a pH swing preparation method.

Amorphous silica-alumina composition and a method of making and using such composition

Amorphous silica-alumina composition and method of making and using such composition

Alumina having a pore structure characterized by the absence of macropores, no more than 5% of the total pore volume in pores greater than 350 &#x212b;, a high pore volume (greater than 0.8 cc/g measured by mercury intrusion) and a bi-modal pore volume distribution character, where the two modes are separated by 10 to 200 &#x212b;, and the primary pore mode is larger than the median pore diameter (MPD), calculated either by volume or by surface area, the MPD by volume being itself larger than the MPD by surface area. Also provided are catalysts made from and processes using such alumina.

Alumina having bimodal pore structure, catalysts made therefrom and processes using same

A method for making alumina having a pore structure characterized by the absence of macropores, no more than 5% of the total pore volume in pores greater than 350 &angst;, a high pore volume (greater than 0.8 cc/g measured by mercury intrusion) and a bi-modal pore volume distribution character, where the two modes are separated by 10 to 200 &angst;, and the primary pore mode is larger than the median pore diameter (MPD), calculated either by volume or by surface area, the MPD by volume being itself larger than the MPD by surface area. Alumina made by such process and catalyst made therefrom.

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Katy, TX, United States of America

Russell Craig Ackerman