Multi-metallic bulk hydroprocessing catalysts
AssigneeChevron U.S.A. Inc.
InventorsXiaoying OUYANG, Alexander E. KUPERMAN
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Abstract
Multi-metallic bulk catalysts and methods for synthesizing the same are provided. The multi-metallic bulk catalysts contain nickel, molybdenum tungsten, yttrium, and optionally, copper, titanium and/or niobium. The catalysts are useful for hydroprocessing, particularly hydrodesulfurization and hydrodenitrogenation, of hydrocarbon feedstocks.
Claims26
A bulk catalyst precursor comprising:
- (a) 1 to 60 wt. % of Ni, on a metal oxide basis;
- (b) 1 to 40 wt. % of Mo, on a metal oxide basis;
- (c) 5 to 80 wt. % of W, on a metal oxide basis;
- (d) 0.01 to 30 wt. % of Y, on a metal oxide basis;
- (e) 0 to 20 wt. % of Cu, on a metal oxide basis;
- (f) 0 to 45 wt. % of Ti, on a metal oxide basis;
- and
- (g) 0 to 20 wt. % of Nb, on a metal oxide basis.
A process for hydroprocessing a hydrocarbon feedstock, the process comprising contacting the hydrocarbon feedstock with hydrogen in the presence of a bulk catalyst at hydroprocessing conditions to give at least one product, wherein the bulk catalyst is a derived or derivable from a bulk catalyst precursor comprising:
- (a) 1 to 60 wt. % of Ni, on a metal oxide basis;
- (b) 1 to 40 wt. % of Mo, on a metal oxide basis;
- (c) 5 to 80 wt. % of W, on a metal oxide basis;
- (d) 0.01 to 30 wt. % of Y, on a metal oxide basis;
- (e) 0 to 20 wt. % of Cu, on a metal oxide basis;
- (f) 0 to 45 wt. % of Ti, on a metal oxide basis;
- and
- (g) 0 to 20 wt. % of Nb, on a metal oxide basis.
Dependencies are inferred from the claim text.