Waste disposal

US4462318A · kind A · utility

Assignee

• ENSCO, INC. · US

Inventors

• Richard W. Carbeau · Hingham, US
• James F. Martin · Hondo, US
• John H. Lanier · Murfreesboro, US
• William L. Holt · Nashville, US

Key dates

• Filing date: Dec 31, 1981
• Grant date: Jul 31, 1984
• Expiry date: Dec 31, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S588/90
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Burning a waste fuel blend at very high temperatures (typically greater than 4000 deg. F.) for a very short period of time (typically a matter of milliseconds) in a primary combustion zone to break the complex hazardous/toxic hydrocarbons into less complex chemicals (such as CO, CO.sub.2, H.sub.2, OH, HCl, and Cl.sub.2), passing the products of the primary zone into a secondary zone in which the products are maintained for a longer time (typically about 2 secs.) in turbulent conditions with excess air at lower combustion temperatures (typically 2000 to 2600 deg. F.) to reduce the primary zone products to a mixture of H.sub.2 O, CO.sub.2 and acids such as HCl, and quenching the products of the secondary zone.