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US 7,232,515 B1Granted
Hydrofining process using bulk group VIII/Group VIB catalysts
AssigneeExxonMobil Research and Engineering Company
InventorsRichard Alan Demmin, Kenneth Lloyd Riley, Stuart Leon Soled, Sabato Miseo
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Abstract
A process for hydrofining a lubricating oil feedstock comprising contacting the feedstock with a hydrofining catalyst in a hydrofining zone under hydrofining conditions wherein the hydrofining catalyst comprises a bulk metal catalyst containing non-noble Group VIII metal molybdate in which at least a portion but less than all of the molybdenum is replaced by tungsten.
Claims16
A process for hydrofining oil feedstock which comprises:
- contacting the feedstock with a hydrofining catalyst in a hydrofining zone under hydrofining conditions wherein the hydrofining catalyst comprises a bulk metal catalyst represented by the formula:
- (X)b(Mo)c(W)d(O)z
- wherein X is a non-noble Group VIII metal, the molar ratio of b:(c+d) is 0.5/1 to 3/1.
Dependencies are inferred from the claim text.