PROCESS FOR PREPARING BASESTOCKS HAVING HIGH VI USING OXYGENATED DEWAXING CATALYST

摘要

A process for preparing high VI lubricating oil basestocks comprising hydrotreating, hydrodewaxing and optionally hydrofinishing. The hydrotreated feedstock is hydrodewaxed using a dewaxing catalyst that has been selectivel y activated by oxygenate treatment. The hydrodewaxed product may then be hydrofinished.