Process for cleaning flue gases

US4834954A · kind A · utility

Assignees

• BAYER HEALTHCARE LLC · DE
• Metallgesellschaft AG · DE

Inventors

• Karl-Heinz Dorr
• Hugo Grimm
• Heinz Neumann · Riedstadt, DE
• Rudolf Gerken · Krefeld, DE
• Gunter Lailach · Krefeld, DE

Key dates

• Filing date: Jun 26, 1987
• Grant date: May 30, 1989
• Expiry date: Jun 26, 2007

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23J15/08
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Cleaned flue gases normally accumulate as steam-saturated gases with temperatures of from 40.degree. to 55.degree. C. after wet cleaning processes for the removal of sulfur and/or nitrogen compounds. Before being let off through a stack, however, these gases have to be heated to at least 72.degree. C. This invention relates to a process for reheating flue gases after wet cleaning.