Process for cleaning the waste gas from drying processes using heated gas

US5830260A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Levent Yueksel · Goldkronach, DE
• Wilhelm Johannisbauer · Erkrath, DE
• Katrin Burmeister · Poing, DE
• Heike Fleischmann · Hilden, DE

Key dates

• Filing date: Oct 21, 1996
• Grant date: Nov 3, 1998
• Expiry date: Oct 21, 2016

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F26B25/006
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The waste gas accumulating in the drying of products containing volatile ingredients is cooled, the condensate obtained is subjected to crossflow membrane filtration and part of the cleaned waste gas is returned to the drying process. The concentrate obtained is put to a material, thermal or other use. The both effective and economic process is suitable for eliminating the aerosols, particularly the organic aerosols, present in the waste gas.