Method of binding sulfur compounds by adding additives

US4642225A · kind A · utility

Assignee

• L & C Steinmuller GmbH · DE

Inventor

• Klaus Leikert · Gummersbach, DE

Key dates

• Filing date: Dec 13, 1984
• Grant date: Feb 10, 1987
• Expiry date: Dec 13, 2004

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D53/508
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method of binding sulfur compounds which are produced as reaction products during the combustion of sulfur-containing fuels in a charging bed or fluidized bed furnace at temperatures above 1000.degree. C. The method is effected by the addition of additives. The hot flue gases exiting directly from the charging bed or fluidized bed furnace pass through a cooling zone to lower the flue gas temperature to below 1000.degree. C. After this cooling zone, the additives are introduced into the cooled-off flue gas flow via a carrier medium. The charging bed or fluidized bed furnace for carrying out this method includes cooling surfaces for cooling the hot flue gases in the cooling zone. These cooling surfaces are disposed directly above the furnace surface and below the additive introduction surface. Cooling of the flue gases in the cooling zone can be effected by blowing in low-temperature flue gas between the upper edge of the furnace surface and the lower edge of the additive introduction surface.