Nitrogen oxide removal using diesel fuel and a catalyst

US6119451A · kind A · utility

Assignee

• The Regents of the University of California · US

Inventors

• George E. Vogtlin · Fremont, US
• David A. Goerz · Brentwood, US
• Mark Hsiao · Tracy, US
• Bernard T. Merritt · Livermore, US
• Bernie M. Penetrante · San Ramon, US
• John G. Reynolds · Corona, US
• Ray Brusasco · Livermore, US

Key dates

• Filing date: Apr 20, 1999
• Grant date: Sep 19, 2000
• Expiry date: Apr 20, 2019

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T10/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Hydrocarbons, such as diesel fuel, are added to internal combustion engine exhaust to reduce exhaust NO.sub.x in the presence of a amphoteric catalyst support material. Exhaust NO.sub.x reduction of at least 50% in the emissions is achieved with the addition of less than 5% fuel as a source of the hydrocarbons.