Propene oxidation from air by atmospheric plasma-catalytic hybrid system

Thien Huu Pham, Ha Manh Bui, Ahmed Khacef

Abstract


Pulsed dielectric barrier discharge (DBD) combined to palladium supported on alumina beads were investigated for propene removal from air. 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 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 thermal catalysis at low temperature (60% at 20°C). Plasma-alone treatment has a similar effectiveness to plasma-catalysis at room temperature but leads to the formation of high by-products concentrations. It appears that in plasma-catalyst system, C3H6 removal strongly increased whatever the configuration used and was helpful to minimize by-products formation.


Keywords


Non-thermal plasma; C3H6 oxidation; palladium catalyst

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DOI: http://dx.doi.org/10.2298/JSC171014012P

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