Hydrotreating catalyst composition and processes therefor and therewith
First Claim
1. A composition comprising a ZSM-5 zeolite having incorporated therein a nitrided promoter incorporating molybdenum in combination with a co-promoter chosen from among the group consisting of boron, magnesium, phosphorus, sulfur, tin, titanium and zirconium thereby providing a nitrided co-promoted ZSM-5 zeolite.
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Abstract
A nitrided calcined modified zeolite composition having incorporated therein a molybdenum promoter and a co-promoter. A carburized nitrided calcined modified zeolite composition having incorporated therein a molybdenum promoter and a co-promoter. Producing the composition by incorporating a molybdenum promoter compound and a co-promoter compound into the zeolite followed by thermal treatment of the resulting zeolite with a nitriding agent and, optionally, further thermally treating the resulting zeolite with a hydrocarbon, preferably in the presence of hydrogen. A hydrotreating process that contacts a hydrocarbon-containing fluid with the nitrided, optionally carburized, calcined modified zeolite composition under a condition sufficient to effect the reduction of sulfur content in the hydrocarbon-containing fluid.
69 Citations
28 Claims
- 1. A composition comprising a ZSM-5 zeolite having incorporated therein a nitrided promoter incorporating molybdenum in combination with a co-promoter chosen from among the group consisting of boron, magnesium, phosphorus, sulfur, tin, titanium and zirconium thereby providing a nitrided co-promoted ZSM-5 zeolite.
- 10. A composition comprising a ZSM-5 zeolite having impregnated thereon a promoter comprising nitrogen, molybdenum and at least one co-promoter selected from the group consisting of boron, magnesium, phosphorus, sulfur, tin, titanium and zirconium.
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12. A process for producing a zeolite composition comprising
(1) contacting a ZSM-5 zeolite with (a) at least one molybdenum compound and (b) at least one compound comprising boron, magnesium, phosphorus, sulfur, tin, titanium and zirconium under a condition sufficient to incorporate said (a) and (b) compounds into said zeolite to form a modified zeolite; -
(2) calcining said modified zeolite to produce a calcined modified zeolite; and (3) contacting said calcined modified zeolite under nitriding conditions with a nitriding agent to provide a nitrided calcined modified zeolite. - View Dependent Claims (13, 14, 15, 16, 17)
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- 18. A process comprising contacting a first hydrocarbon-containing fluid, which comprises at least one saturated hydrocarbon, with a catalyst composition to produce a second hydrocarbon-containing fluid wherein said catalyst composition comprises a ZSM-5 zeolite having incorporated therein a promoter comprising at least molybdenum nitride and a nitride of a co-promoter selected from the group consisting of boron, magnesium, phosphorus, sulfur, tin, titanium and zirconium.
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25. A hydrotreating process comprising contacting, in the presence of a hydrogen-containing fluid, a hydrocarbon fluid comprising at least one saturated hydrocarbon and at least one sulfur compound with a catalyst composition under a condition sufficient to reduce the sulfur compound content in said fluid wherein said catalyst composition is prepared by the steps comprising:
- (1) contacting a ZSM-5 zeolite with a molybdenum compound and a co-promoting compound selected from the group consisting of boron, magnesium, phosphorus, sulfur, tin, titanium and zirconium under a condition sufficient to incorporate said promoters onto said zeolite to form a modified zeolite;
(2) calcining said modified zeolite to produce a calcined modified zeolite; and
(3) contacting said calcined modified zeolite with ammonia under nitriding conditions to provide a nitrided calcined modified zeolite. - View Dependent Claims (26, 27, 28)
- (1) contacting a ZSM-5 zeolite with a molybdenum compound and a co-promoting compound selected from the group consisting of boron, magnesium, phosphorus, sulfur, tin, titanium and zirconium under a condition sufficient to incorporate said promoters onto said zeolite to form a modified zeolite;
Specification