Production of high viscosity index lubricating oils from lower olefins

US4754096A · kind A · utility

Assignee

• Mobil Oil Corporation · US

Inventors

• Clarence D. Chang · Princeton, US
• John Dixon · Jacksonville, US
• Albert B. Schwartz · Philadelphia, US
• David S. Shihabi · Pennington, US

Key dates

• Filing date: Jul 13, 1987
• Grant date: Jun 28, 1988
• Expiry date: Jul 13, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G50/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for the production of lubricant oil range hydrocarbon having increased viscosity index by oligomerization of lower olefins over medium pore shape selective acid zeolite catalyst. The preferred oligomerization process is conducted using 50 ppm to 5 weight percent of water vapor as cofeed, based on olefin and acid ZSM-5 zeolite.