Mixed metal catalyst, its preparation by co-precipitation, and its use
AssigneeExxonMobil Research and Engineering Company
InventorsSonja Eijsbouts, Bob Gerardus Oogjen, Hermannus Willem Homan Free, Marinus Bruce Cerfontain, Kenneth Lloyd Riley, Stuart Leon Soled, Sabato Miseo
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Abstract
The present invention relates to a process for the preparation of a hydroprocessing catalyst, to the catalyst composition obtainable by said process, and to the use of said catalyst composition in hydroprocessing applications. The process comprises the steps of combining and reacting at least one Group VIII non-noble metal component in solution and at least two Group VIB metal components in solution in a reaction mixture to obtain an oxygen-stable precipitate, and sulfiding the precipitate.
Claims34
A process for preparing a catalyst composition comprising sulfidic bulk catalyst particles comprising at least one Group VIII non-noble metal and at least two Group VIB metals which comprises the following process steps
- (i) combination and reaction of at least one Group VIII non-noble metal component in solution and at least two Group VIB metal components in solution in a reaction mixture to obtain an oxygen-stable precipitate, and
- (ii) sulfidation of the precipitate,
- step (i) being carried out in an oxygen-containing atmosphere.
A catalyst composition comprising sulfidic bulk catalyst particles which comprise at least one Group VIII non-noble metal component and at least two Group VIB metal components, the catalyst composition being essentially free of Group VIII non-noble metal disulfides, wherein the Group VIII non-noble metals are present as (Group VIII non-noble metal)ySx, with x/y being in the range of 0.5-1.5.
Dependencies are inferred from the claim text.