Ltages.1.two.three.4.five 014 cm-1.2.three.4.five 014 cm-1.two.three.4.five 014 cm-(a)(b)(c)1.2.three.4.5 014 cm-1.2.three.four.five 014 cm-(d)(e)Figure 13.13. Spatial distribution from

Ltages.1.two.three.4.five 014 cm-1.2.three.4.five 014 cm-1.two.three.4.five 014 cm-(a)(b)(c)1.2.three.4.5 014 cm-1.2.three.four.five 014 cm-(d)(e)Figure 13.13. Spatial distribution from the CO2density for occasions (a) 22ms, (b) six ms, (c) ten ms, (d) 14 ms, and (e) 1818 ms for the Figure Spatial distribution on the CO2 density for times (a) ms, (b) 6 ms, (c) ten ms, (d) 14 ms, and (e) ms for the Mouse manufacturer reactor at 22 22 kV AC voltage and 1 cm distancebetween electrodes. reactor at kV AC voltage and 1 cm distance in between electrodes.The maximum values on the maximum values in the CO22 density were located inside the metallic inlet/outlet CO density were found inside the metallic inlet/outlet pipes. The positive ions accumulated this zone because they didn’t move toward the pipes. The optimistic ions accumulated inin this zone simply because they did not move toward the electrodes for the low electric field inside the pipes. On the other hand, the CO ion is definitely an electrodes due due to the low electric field insidethe pipes. However, the CO2 two ion is an unstable species and can be speedily recombined with electrons unfavorable ions O2 – 2- unstable species and can be immediately recombined with electrons oror unfavorable ions Oto to convert CO and O, and/or O [48]. convert toto CO andO, and/or O2 two [48].Density of Neutral Species CO, O, and O2.Density of Neutral Species CO, O, and OThe densities of the neutral species CO and O generated inside the plasma discharge The densities from the neutral species CO and O generated inside the plasma discharge medium in the created AC-PPP reactor at times two, six, 10, 14, and 18 ms are presented medium on the and 15. These neutral species had been produced14, and 18powered electrode in in Figures 14 developed AC-PPP reactor at instances 2, six, ten, near the ms are presented Figures 14 and 15. These neutral species have been produced close to unfavorable voltage. This throughout the optimistic voltage and the ground electrode for the duration of the the powered electrode in the course of the good voltage along with the close to the electrodes,duringproduced the dissociation was because of the higher electron density ground electrode which the unfavorable voltage. This and attachment processes on the neutral species in these regions. was due to the higher electron density close to the electrodes, which made the dissociation The maximum values of neutral O densities are equal to and attachment processes of the CO andspecies in these regions. four.7 1011 cm-3 and two.three 1011 cm-3 , respectively. The maximum CO density is greater than O simply because this molecule is created by two mechanisms, electron influence dissociation (reaction 7 and 9) and electron dissociative attachment (reaction 15). CO is actually a comparatively steady molecule that can recombine with O and O- to form new CO2 when the residence time is higher [48]. However, the O atoms recombine immediately into DMPO supplier Oxygen molecules, O2 and/or ozone, O3 . Oxygen molecules, O2 , are formed mainly by the reaction of oxygen atoms using the CO2 gas via neutral dissociation and 3-body recombination, reactions 17 and 20, respectively. Figure 16 shows the model outcomes with the spatial distribution of the O2 density at instances two, 6, 10, 14, and 18 ms. The maximum values of this density correspond to positions exactly where O and CO2 densities are higher.Appl. Sci. 2021, 11, 10047 Appl. Sci. 2021, 11, x FOR PEER Evaluation Appl. Sci. 2021, 11, x FOR PEER REVIEW20 of 25 20 of 25 20 of124011 cm-3 011 cm-124011 cm-3 011 cm-(a) (a)(b) (b)12(c) (c)34011 cm-3 011 cm-124011 cm-3 011 cm-124011 cm-3 011 cm-(d) (d)(e) (e)Figure 14. Spatial distribution on the CO de.