High viscosity high quality group II lube base stocks

US9487723B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Gretchen L. Holtzer · Layton, US
• Ajit B. Dandekar · South Plainfield, US
• Charles L. Baker, Jr. · Thornton, US
• Bradley R. Fingland · Jackson, US
• Bryan E. Hagee · Hamilton, US
• Cathleen Yung · Phillipsburg, US
• Frank C. Wang · Annandale, US
• Eugenio Sanchez · Pitman, US
• Rugved P. Pathare · Sarnia, CA

Key dates

• Filing date: Mar 14, 2013
• Grant date: Nov 8, 2016
• Expiry date: Nov 26, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/10
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Provided are high viscosity high quality Group II lube base stocks with improved properties produced by an integrated hydrocracking and dewaxing process. In one form, the Group II lube base stock includes greater than or equal to 90 wt. % saturates, and less than 10 wt. % aromatics, and has an aromatic performance ratio between 1.0 and 5.0. Also provided are lubricant formulations including the high viscosity high quality Group II lube base stock.