Dispersed metal sulfide-based catalysts
AssigneeIntevep, S.A.
InventorsPedro Pereira, Guaicaipuro Rivas, Jose Cordova, Francisco Granadillo, Roger Marzin, Bruno Solari, Luis Zacarias
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Abstract
The invention provides a catalyst composition, which includes an emulsion of an aqueous phase in an oil phase, wherein the aqueous phase comprises an aqueous solution containing a group 6 metal and a group 8, 9 or 10 metal. The metals can be provided in two separate emulsions, and these emulsions are well suited for treating hydrocarbon feedstocks.
Claims51
A catalyst composition of the general formula:
- BxMyS[(1.1 to 4.6)y+(0.5 to 4)x]
- where B is a group 8, 9 or 10 (group VIIIB, CAS version) non-noble metal and M is a group 6 (group VIB, CAS version) metal, and wherein the ratio y/x is greater than or equal to 0.05 and less than or equal to 15.
A catalyst composition of the general formula:
- BxM1yM2zO(2 to 3)zS[(0.3 to 2)y+(0.5 to 4)x]
- where B is a group 8, 9 or 10 (group VIIIB, CAS version) non-noble metal and M1 and M2 are group 6 (group VIB, CAS version) metals, and wherein the ratio y/x is greater than or equal to 0.05 and less than or equal to 15, and the ratio z/x is greater than or equal to 1 and less than or equal to 14.
A catalyst composition, comprising:
- an emulsion of an aqueous phase in an oil phase, wherein the aqueous phase comprises an aqueous solution containing a group 6 metal and a group 8, 9 or 10 metal.
A method for preparing an at least bi-metallic ultradispersed catalyst comprising the steps of:
- preparing at least one first precursor solution containing a metal salt of a metal of groups 8, 9 or 10 (Group VIII B, CAS version);
- preparing a second precursor solution containing a group 6 metal salt (Group VI B, CAS version);
- admixing the first and second precursor solutions with a hydrocarbon feedstock to form separate first and second microemulsions;
- and
- exposing the first and second microemulsions to heat so as to decompose the first and second precursor solutions and form the catalyst.
A process for upgrading a hydrocarbon feedstock, comprising:
- exposing the feedstock to an emulsion of an aqueous phase in an oil phase, wherein the aqueous phase comprises an aqueous solution containing a group 6 metal and a group 8, 9 or 10 metal;
- and
- thermally decomposing the emulsion to produce a dispersed catalyst of the group 6 metal and the group 8, 9 or 10 metal, whereby the dispersed catalyst reacts with the feedstock to produce an upgraded hydrocarbon product.
Dependencies are inferred from the claim text.