Patent ID: 7686949
Filing Date: 2010-03-30
Classification: B01J,C07C,C10G

Abstract:
1. An aromatics saturation process for lube oil boiling range feedstreams comprising: a) contacting a lube oil boiling range feedstream containing aromatics, nitrogen and organically bound sulfur contaminants in a first reaction stage operated under effective hydrotreating conditions and in the presence of hydrogen-containing treat gas with a conventional hydrotreating catalyst comprising about at least one Group VIII metal oxide and at least one Group VI metal oxide thereby producing a reaction product comprising at least a vapor product and a liquid lube oil boiling range product; and b) contacting said reaction product with a second hydrotreating catalyst in the presence of a hydrogen-containing treat gas in a second reaction stage operated under effective hydrotreating conditions, wherein said second hydrotreating catalyst consisting essentially of: