Modelling of NO and HC removal by non-thermal plasmas

Modelling of Carbon Tetrachloride Decomposition in Oxidative RF Thermal Plasma

“…This is a reasonable approximation, because at atmospheric pressure the concentrations of ionic species and electrons are low, therefore the rates of ionic reactions are smaller than that of non-ionic ones. On the other hand, the rate constants of ionic and electron impact reactions are usually much smaller compared to non-ionic ones [6,13].…”

Numerical modeling of H2–O2 flames involving electronically-excited species O2(a1ΔBourig1, Thévenin2, Martín3 et al. 2009Proceedings of the Combustion Institute272280View full textAdd to dashboardCite

“…If present in critical concentrations, they may in particular reduce ignition delay time [12]. Numerical models including excited species have demonstrated that pulsed corona discharges may be used for NO removal at low temperature and atmospheric pressure [13].…”

Methane Conversion: a Case Study for Simplification of Plasma Chemistry Models by the Omission of Charged Species

“…Therefore, it can be concluded that it is a good assumption that at thermal plasma conditions the ionic reactions have no importance compared to the neutral ones and can be neglected from the reaction mechanism without causing any significant error in the kinetic results and the product concentrations. For carbon tetrachloride thermal plasma the maximum temperature is 7,000 K. Considering a small ionization [5,12,13] the neutral concentration is far higher than the concentrations of the ions and electrons. Experimental results also prove that at atmospheric pressure in thermal plasmas the ion and electron containing reactions are slower compared to the thermal reactions, and they can be neglected from a reaction kinetic model [12,13].…”

“…For carbon tetrachloride thermal plasma the maximum temperature is 7,000 K. Considering a small ionization [5,12,13] the neutral concentration is far higher than the concentrations of the ions and electrons. Experimental results also prove that at atmospheric pressure in thermal plasmas the ion and electron containing reactions are slower compared to the thermal reactions, and they can be neglected from a reaction kinetic model [12,13]. Orlandini and Riedel [12] investigated the NO conversion at atmospheric pressure and they found that the simulation results were in good accordance with the previous experimental results, although the ionic species were completely ignored.…”