Hydrotreating process using novel multimetallic sulfide catalysts
AssigneeExxon Research & Engineering Co.
InventorsGophal H. Singhal, Leo D. Brown, X. B. Cox, III, Thomas R. Halbert
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Abstract
The present invention relates to a process for removing hetero-atoms from a hydrocarbonaceous feedstock using novel catalysts comprised of highly dispersed molybdenum sulfide promoted with a noble metal such that the noble metal is in an oxidation state greater than 0 and coordinated to S. The noble metal is selected from Pt, Pd, Rh, and Ir. It is preferred that the catalysts of be prepared from a precursor composition selected from platinum ethoxyethyl xanthate or platinum dithiocarbamate. Additionally, the catalyst may include a promotor sulfide such as nickel sulfide, cobalt sulfide or iron sulfide, etc. or mixtures thereof.
Claims12
Process for removing sulfur and nitrogen from a hydrocarbonaceous feedstock which process comprises treating the feedstock at hydrotreating conditions, and in the presence of hydrogen, with a non-supported catalyst composition which is highly dispersed in said feedstock, which catalyst is comprised of molybdenum sulfide promoted with a noble metal such that the noble metal is in an oxidation state greater than 0 and coordinated to S.
Dependencies are inferred from the claim text.