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US 10,590,360 B2Granted
Bright stock production from deasphalted oil
AssigneeExxonMobil Research and Engineering Company
InventorsLisa I-Ching Yeh, Rugved P. Pathare, Eric B. Senzer, Camden N. Henderson, Tracie L. Owens, Kendall S. Fruchey, Timothy L. Hilbert, Michael B. Carroll, Debra A. Sysyn, Kathleen E. Edwards, Bryan E. Hagee
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Abstract
Compositions are provided for lubricant base stocks produced from feeds such as vacuum resid or other 510° C.+ feeds. A feed can be deasphalted and then catalytically and/or solvent processed to form lubricant base stocks, including bright stocks that are resistant to haze formation.
Claims31
A lubricant base stock composition comprising:
- a T10 distillation point of at least 900° F. (482° C.);
- a viscosity index of at least 80;
- a saturates content of at least 90 wt %;
- a sulfur content of less than 300 wppm;
- a kinematic viscosity at 100° C. of at least 14 cSt;
- a kinematic viscosity at 40° C. of at least 320 cSt;
- a cloud point of −2° C. or less;
- and
- a sum of terminal/pendant propyl groups and terminal/pendant ethyl groups of at least 1.7 per 100 carbon atoms of the composition.
6 more elements
A lubricant base stock composition comprising:
- a T10 distillation point of at least 900° F. (482° C.);
- a viscosity index of at least 80;
- a saturates content of at least 90 wt %;
- a sulfur content of less than 300 wppm;
- a kinematic viscosity at 100° C. of at least 14 cSt;
- a kinematic viscosity at 40° C. of at least 350 cSt;
- a cloud point of −2° C. or less;
- and
- a sum of terminal/pendant propyl groups and terminal/pendant ethyl groups of at least 1.7 per 100 carbon atoms of the composition.
6 more elements
Dependencies are inferred from the claim text.