Raffinate hydroconversion process

US6325918A · 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
• Gary L. Harting · Westfield, US

Key dates

• Filing date: Mar 21, 2000
• Grant date: Dec 4, 2001
• Expiry date: Mar 21, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G67/0445
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for producing a high VI/low volatility lubricating oil basestock and a lubricating oil basestock prepared by said process. The process comprises subjecting the raffinate from a solvent extraction step to a two step, single stage hydroconversion process wherein the first step involves severe hydroconversion of the raffinate followed by a cold hydrofinishing step.