Process of afterburning combustible constituents of exhaust gases from rotary kilns

US4436286A · kind A · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

• Wolfram Schnabel · Idstein, DE
• Ernst Scheu · Frankfurt am Main, DE
• Harry Serbent · Hanau, DE

Key dates

• Filing date: Sep 14, 1982
• Grant date: Mar 13, 1984
• Expiry date: Sep 14, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/134
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

In order to avoid incrustation and an excessively strong thermal attack on the afterburning chamber, the exhaust gases which contain gaseous and solid constituents which are combustible are afterburned in a plurality of stages, which are connected in series. The rate at which oxygen is supplied to each stage is so controlled that part of the combustible constituents is afterburned in each stage. The gas which is about to enter each succeeding stage is cooled by injected water.