Mineral oils: processes and products – Refining – Nitrogen contaminant removal
Patent
1983-05-13
1984-07-03
Gantz, Delbert E.
Mineral oils: processes and products
Refining
Nitrogen contaminant removal
208289, C10G 4504
Patent
active
044578369
ABSTRACT:
A process for selectively removing nitrogen from petroleum distillate feedstocks, notably lube oil distillates or lube base stocks without significant desulfurization of said petroleum distillate feedstocks, especially lube oil distillates or lube base stocks, while hydrotreating the oil to improve odor, color, improve stability, and the like. In accordance therewith, a supported, non (metal-promoted) carbon-containing molybdenum sulfide HDN/HDS selective hydrotreating catalyst is formed from a precursor composite made by compositing a preselected quantity of a porous, refractory inorganic oxide with a complex salt characterized by the formula B.sub.x [MoO.sub.y S.sub.4-y ] where B is (a) an alkyl substituted diammonium ion, or (2) an alkyl substituted ammonium ion or quaternary ammonium ion; x is 1 where B is an alkyl substituted diammonium ion, or 2 where B is an alkyl substituted ammonium or quaternary ammonium ion; and y is 0, or a fraction or whole number ranging up to 3. The supported, non (metal-promoted) carbon-containing molybdenum sulfide HDN/HDS selective lube oil hydrotreating catalyst is then formed from the precursor composite by heating said composite, and heat decomposing the salt of said catalyst precursor composite in the presence of hydrogen, hydrocarbon and sulfur.
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Goetsch Duane A.
Rebick Charles
Seiver Robert L.
Chaudhuri O.
Exxon Research and Engineering Company
Gantz Delbert E.
Proctor Llewellyn A.
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