Reffinate hydroconversion process

US6592748B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Ian A. Cody · Baton Rouge, US
• William J. Murphy · Baton Rouge, US
• John E. Gallagher · Fairfax Station, US
• Joseph P. Boyle · Sarnia, CA
• Anne M. Zinicola · Houston, US
• Christopher John May · Novi, US
• Jeenok T. Kim · Holmdel, US
• John A. Groestch · Front Royal, US
• Sylvain Hantzer · Prairieville, US

Key dates

• Filing date: Jun 26, 2001
• Grant date: Jul 15, 2003
• Expiry date: Jun 26, 2021

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 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.