Process for making a lube basestock with excellent low temperature properties
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United States of America Patent
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Sep 16, 2003
Grant Date -
N/A
app pub date -
Oct 25, 2000
filing date -
Feb 13, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method for producing a lube basestock from a waxy feed is disclosed in which a feed containing to 50 wt % or more of wax is hydrotreated and stripped to lower the nitrogen and sulfur content of the feed. The feed is then hydroisomerized under conditions to 370.degree. C. hydrocatalytically dewaxed with a catalyst comprising a mixture of a catalytically active metal on a zeolite dewaxing catalyst and an amorphous catalyst, or alternatively is solvent dewaxed and then hydrocatalytically dewaxed with the just described catalyst.
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