Study on reduction of energy consumption in pulsed corona discharge process for NOx removal

We investigated the reduction of electrical energy consumption in the pulse d corona discharge process for the removal of nitrogen oxides. Hydrocarbon chemical additives used in the laboratory-scale experiment are responsible for the enhancement of the NO conversion through the chain reactions of fre e radicals, such as, R, RCO, RO, and others. Electrical energy consumption pet converted NO molecule has a minimum value of 17 eV when pentanol is inj ected. When ethylene and propylene are injected, 30 and 22 eV of electrical energy consumption are required for the conversion of a NO molecule, respe ctively. The ratio of the pulse-forming capacitance (C-e) to the reactor ca pacitance (C-R) plays an important role in the energy transfer,. efficiency to the reactor. The maximum energy transfer efficiency of approximately 72 % could be obtained by the pulse-forming capacitance, which is 3.4 limes la rger than the reactor capacitance; the maximum NO conversion efficiency was also observed with the same condition.