Gasoline upgrading process

US5391288A · kind A · utility

Assignee

• Mobil Oil Corporation · US

Inventors

• Nick Allen Collins · Church Hill, US
• Paul P. Durand · Wilmington, US
• David L. Fletcher · Turnersville, US
• Mohsen N. Harandi · Lawrenceville, US
• Edward F. Kondis · Marshall, US
• Hartley Owen · Montgomery, US
• Michael S. Sarli · Haddonfield, US
• Stuart S. Shih · Cherry Hill, US

Key dates

• Filing date: Jun 10, 1993
• Grant date: Feb 21, 1995
• Expiry date: Jun 10, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G69/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Low sulfur gasoline of relatively high octane number is produced from a catalytically cracked, sulfur-containing naphtha and benzene-rich fraction by hydrodesulfurization in a first reaction zone and treatment over an acidic catalyst, preferably an intermediate pore size zeolite such as ZSM-5 in a second reaction zone to reduce the octane loss which takes place as a result of the hydrodesulfurization. The benzene-rich fraction can be cofed to the first reaction zone or the second reaction zone. The benzene-rich fraction is preferably a heart-cut reformate.