Oxidation of propene from air by atmospheric plasma-catalytic hybrid system

• Main Authors: Pham Thien Huu, Bui Ha Manh, Khacef Ahmed
• Format: Article
• Language: English
• Published: Serbian Chemical Society 2018-01-01
• Series: Journal of the Serbian Chemical Society
• Subjects: Non-thermal plasma; C3H6 oxidation; palladium catalyst
• Online Access: http://www.doiserbia.nb.rs/img/doi/0352-5139/2018/0352-51391800012P.pdf

The pulsed dielectric barrier discharge (DBD) combined with the palladium supported on alumina beads, was investigated for propene (C3H6) removal from air. The effects of thermal-catalysis, plasma-catalysis (in-plasma catalysis and post-plasma catalysis), and plasma-alone on the propene removal were compared. Results are presented in the terms of C3H6 removal efficiency, energy consumption, and by-products production. Temperature dependence studies (20–250°C) show that in all conditions of input plasma energy density explored (23–148 J L-1), the plasma-catalysis systems exhibit better propene conversion efficiencies than the thermal catalysis at low temperature (60% at 20°C). Plasma-alone treatment has a similar effectiveness compared to plasma-catalysis at room temperature, but it leads to the formation of high by-products concentrations. It appears that in the plasma-catalyst system, C3H6 removal was the most efficient, whatever was the configuration used, and it was helpful to minimize by-products formation.