Hydroprocessing catalyst having an organic additive with metals incorporated using chelant and method of making and using such catalyst
A highly active hydroprocessing catalyst that comprises an inorganic oxide support particle having been impregnated with a metals-impregnation solution comprising a complexing agent and a hydrogenation metal that is further incorporated with an organic additive blend.
1. A method of making a hydroprocessing catalyst, the method comprises:
providing an inorganic oxide support particle; impregnating the inorganic oxide support particle with a metal impregnation solution, comprising at least one hydrogenation metal component and a metal complexing agent, to provide a metal-impregnated particle;
drying the metal-impregnated particle to provide a dried particle; and
impregnating the dried particle with an organic additive blend, comprising an acetate compound and an unsaturated fatty amine compound.
2. The method as recited in claim 1 , wherein the organic additive blend has a weight ratio of unsaturated fatty amine compound-to-acetate compound in the range from 30/70 to 90/10.
3. The method as recited in claim 1 , wherein the metal impregnation solution includes the metal complexing agent that is selected from the group consisting of sugar alcohols and compounds having at least 2 carboxylic moieties.
4. The method as recited in claim 3 , wherein the sugar alcohols are selected from the group consisting of sugar alcohols having from 4 to 7 carbon atoms per molecule.
5. The method as recited in claim 4 , wherein the sugar alcohols include xylitol and sorbitol and the compounds having at least 2 carboxylic moieties include citric acid and malic acid.
6. The method as recited in claim 5 , wherein the metal impregnation solution has a weight ratio of the metal complexing agent-to- the hydrogenation metal component in the range of from 0.1 to 0.9 based on the total mass of elemental metal per total mass of the metal complexing agent.
7. The method as recited in claim 2 , wherein the acetate compound is selected from the group consisting of alkyl acetates, ethoxy alkyl acetates, and methoxy alkyl acetates.
8. The method as recited in claim 7 , wherein the unsaturated fatty amine compound is selected from the group consisting of unsaturated fatty amine compounds containing from 8 to 22 atoms per molecule.
9. The method as recited in claim 3 , wherein the sugar alcohols include xylitol and sorbitol and the compounds having at least 2 carboxylic moieties include citric acid and malic acid.
10. The method as recited in claim 1 , wherein the acetate compound is butyl carbitol acetate and the unsaturated fatty amine compound includes oleylamine; wherein the drying step provides the dried particle having an LOI within the range of from 15 to 35 wt. %; wherein the amount of the organic additive blend impregnated into the dried particle fills at least 90 vol. % of its available pore volume;
wherein the weight ratio of the organic additive blend to the metal-impregnated particle, on a dry basis, impregnated into the dried particle is in the range of from ⅛ to ½; and wherein the impregnating of the inorganic support particle with the metal impregnation solution of at least one hydrogenation metal includes molybdenum and either nickel or cobalt, and wherein the amount of nickel or cobalt impregnated into the inorganic oxide support particle provides an amount of nickel or cobalt in the hydroprocessing catalyst in the range of from 0.5 to 20 wt. %, and molybdenum in the range of from 5 to 50 wt. %, with the wt. % based on the metal as the element, regardless of its actual form, and the dry inorganic support particle, excluding the organic additive blend.
11. A hydroprocessing catalyst, comprising: an inorganic oxide support particle; a mixture of a metal complexing agent, molybdenum, and either cobalt or nickel, or both;
and an impregnated organic additive blend, comprising an acetate compound and an unsaturated fatty amine.
12. The hydroprocessing catalyst as recited in claim 11 , wherein the organic additive blend has a weight ratio of unsaturated fatty amine compound-to-acetate compound in the range from 30/70 to 90/10; and wherein the hydroprocessing catalyst comprises a weight ratio of the organic additive blend to the inorganic oxide support particle, on a dry basis, impregnated into the inorganic oxide support particle that is in the range of from ⅛ to ½.
13. The hydroprocessing catalyst as recited in claim 12 , wherein the acetate compound is selected from the group consisting of alkyl acetates, ethoxy alkyl acetates, and methoxy alkyl acetates; and wherein the unsaturated fatty amine compound is selected from the group consisting of unsaturated fatty amine compounds containing from 8 to 22 carbon atoms per molecule.
14. The hydroprocessing catalyst as recited in claim 13 , wherein the acetate compound is butyl carbitol acetate and the unsaturated fatty amine compound is oleylamine.
15. A hydroprocess, comprising: contacting under hydroprocessing conditions a hydrocarbon feedstock with the catalyst of claim 11 .
16. A catalyst made by the method of claim 1 .