Supported hydrotreating catalysts having enhanced activity
AssigneeAlbemarle Catalysts Company B.V.
InventorsBastiaan Maarten Vogelaar, Tjøstil Vlaar, Viktoria Andreevna Renkema-Krysina, Vincentius Theodorus Maria Raven
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Abstract
This invention provides supported catalysts comprising a carrier, phosphorus, at least one Group VI metal, at least one Group VIII metal, and a polymer. In the supported catalyst, the molar ratio of phosphorus to Group VI metal is about 1:1.5 to less than about 1:12, the molar ratio of the Group VI metal to the Group VIII metal is about 1:1 to about 5:1, and the polymer has a carbon backbone and comprises an amido group. Also provided are a process for preparing such supported catalysts, as well as methods for hydrotreating, hydrodenitrogenation, and/or hydrodesulfurization, using supported catalysts.
Claims26
A supported catalyst comprising a carrier, phosphorus, at least one Group VI metal, at least one Group VIII metal, and a polymer, where
- the molar ratio of phosphorus to Group VI metal is about 1:1.5 to less than about 1:12,
- the molar ratio of the Group VI metal to the Group VIII metal is about 1:1 to about 5:1, and
- the polymer has a carbon backbone and comprises an amido group.
A process for forming a supported catalyst, which process comprises
- I) bringing together a carrier, one or more monomer species, a solvent, at least one phosphorus compound, at least one Group VI metal compound, and at least one Group VIII metal compound, in any of the following combinations:
- a) a carrier, one or more monomer species, and a solvent,
- b) a carrier, one or more monomer species, at least one phosphorus compound, at least one Group VI metal compound, and at least one Group VIII metal compound, or
- c) a carrier and an impregnation solution, forming an impregnated carrier, followed by mixing the impregnated carrier with one or more monomer species,
- to form a monomer-containing mixture, where said one or more monomer species is soluble in the solvent and has carbon-carbon unsaturation and an amido group;
- and
- II) initiating polymerization of at least a portion of said one or more monomer species in the monomer-containing mixture to form a polymerized product;
- III) when the monomer-containing mixture in I) is formed as in a), either
- A) contacting an impregnation solution and the monomer-containing mixture during the polymerization in II), or
- B) contacting the polymerized product and an impregnation solution;
- to form a supported catalyst, where the molar ratio of phosphorus to Group VI metal is about 1:1.5 to less than about 1:12, where the molar ratio of the Group VI metal to the Group VIII metal is about 1:1 to about 5:1, and where said impregnation solution comprises a solvent, phosphorus, at least one Group VI metal, and at least one Group VIII metal.
Dependencies are inferred from the claim text.