Process for the pyrolysis of waste materials

US4303477A · kind A · utility

Assignee

• Babcock Krauss-Maffei Industrieanlagen GmbH · DE

Inventors

• Rudiger Schmidt · Munich, DE
• Franz Steininger · Toulouse, FR

Key dates

• Filing date: Jun 9, 1980
• Grant date: Dec 1, 1981
• Expiry date: Jun 9, 2000

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/143
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The emission of halogens and sulfur dioxide and the formation of water-soluble compounds of heavy metals are suppressed in the pyrolysis of waste in a carbonization zone at a temperature in the range from 300.degree. to 600.degree. C. by adding a fine-grained basic material to the waste prior to completion of the pyrolysis of the waste in the carbonization zone.