Hydroconversion process for making lubricating oil basestocks

US6322692A · kind A · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Ian A. Cody · Baton Rouge, US
• Douglas R. Boate · Baton Rouge, US
• Sandra J. Linek · East Hanover, US
• William J. Murphy · Baton Rouge, US
• John E. Gallagher · Fairfax Station, US
• Alberto Ravella · Baton Rouge, US
• Richard A. Demmin · Highland Park, US

Key dates

• Filing date: Mar 21, 2000
• Grant date: Nov 27, 2001
• Expiry date: Mar 21, 2020

Classification

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

Abstract

A process for producing a lubricating oil basestock having at least 90 wt. % saturates and a VI of at least 105 by selectively hydroconverting a raffinate from a solvent extraction zone in a two step hydroconversion zone followed by a hydrofinishing zone, and a lubricating oil basestock produced by said process.