Lubricant base stocks from renewable sources with improved low temperature properties

US9206370B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Kun Wang · Bound Brook, US
• Kristen Amanda Lyon · Deptford, US
• Eugenio Sanchez · Pitman, US
• Charles L. Baker, Jr. · Thornton, US
• Beatrice M. Gooding · Hopewell, US
• Frank C. Wang · Annandale, US

Key dates

• Filing date: Dec 18, 2012
• Grant date: Dec 8, 2015
• Expiry date: Jan 23, 2034

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P30/20
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Provided are lube base stocks produced from renewable biological sources with improved low temperature properties. In one form, the lube base stock includes from 10 to 35 wt. % paraffins, 40 to 70 wt. % 1-ring naphthenes, and 0 to 40 wt. % combined 2-ring naphthenes and aromatics, and has a ratio of 1-ring naphthenes to paraffins from 1.8 to 5.0, and a Viscosity Index of from 100 to 160. The lube base stock has a 14C level ranging from 2 to 101% of the modern day 14C level in the atmosphere, and yields a CCS ratio (Cold Crank Simulator (CCS) viscosity to the predicted CCS viscosity by Walther equation) of less than or equal to 0.85 at −35° C. The base stocks are useful as in formulated lubricant compositions requiring improved low temperature properties.