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AssigneeAdvanced Refining Technologies LLC
InventorsRong He, Stanislaw Plecha, Meenakshi S. Krishnamoorthy, Bharat M. Patel
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Improved catalyst supports, supported catalyst, and method of preparing and using the catalysts for the hydrodesulfurization of a residuum hydrocarbon feedstock are disclosed. The catalyst supports comprise titania alumina having 5 wt % or less titania and have greater than 70% of their pore volume in pores having a diameter between 70 and 130 and less than 2% in pores having a diameter above 1000. Catalysts prepared from the supports contain Groups 6, 9 and 10 metals or metal compounds, and optionally phosphorus, supported on the titania alumina supports. Catalysts in accordance with the invention exhibit improved sulfur and MCR conversion in hydrotreating processes.
A process for preparing a porous support material for supporting catalytically active metals suitable for the hydrodesulfurization of residuum hydrocarbon fractions under hydrotreating conditions, which process comprises:
A catalyst support comprising a co-precipitated titania alumina having 5 wt % or less titania based on the total weight of the titania alumina, said support having a total pore volume in the range of from about 0.5 to about 1.0 cubic centimeters per gram, at least 70% of the total pore volume in pores having a diameter between about 70 Å and about 130 Å, less than 5% of the total pore volume have pores in a diameter above 300 Å, as determined by nitrogen porosimetry, and less than 2% of the total pore volume in pores having a diameter above 1000 Å, as determined by mercury penetration porosimetry.
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A catalyst suitable for use in hydrodesulfurization of residuum hydrocarbon feedstocks comprising:
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Dependencies are inferred from the claim text.