Raffinate hydroconversion process (JHT-9601)

US5976353A · kind A · utility

Assignee

• Exxon Research and Engineering Company · US

Inventors

• Ian A. Cody · Baton Rouge, US
• Douglas R. Boate · Baton Rouge, US
• Sandra J. Alward · Baton Rouge, US
• William J. Murphy · Baton Rouge, US
• John E. Gallagher · Fairfax Station, US
• Gary L. Harting · Westfield, US

Key dates

• Filing date: Jun 28, 1996
• Grant date: Nov 2, 1999
• Expiry date: Jun 28, 2016

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 high VI/low volatility lubricating oil basestock. 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.