Polypropylene as regenerable absorber for PCDD/F emission control
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Updated: Oct 17, 2026

Preparation of Carbon Fiber and Bamboo Fiber Reinforced Poly (butylene Adipate-co-terephthalate) Foams by Supercritical Carbon Dioxide Foaming
Published on: October 10, 2025
S Kreisz1, H Hunsinger, H Seifert
1Forschungszentrum Karlsruhe, Institut für Technische Chemie, Bereich Thermische Abfallbehandlung, Germany.
Abstract:
A new method for the PCDD/F reduction in exhaust gases of incineration plants is based on the property of polypropylene (PP) of interacting with PCDD/F to a variable degree depending on the temperature. After having been loaded with PCDD/F at approx. 80 degrees C, the PP absorber material can be regenerated by a temperature increase of about 50 degrees C. Hence, PP can be applied in a closed cycle as a thermally regenerable PCDD/F separator without an additional waste flow being generated. The setup of the pilot plant and the first results achieved shall be described.
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