TY  - JOUR
T1  - Simulation of VOC decomposition using direct and indirect nonthermal plasma
A1  - Okubo, Masaaki
A1  - Kuroki, Tomoyuki
A1  - Yamasaki, Haruhiko
A1  - Ozawa, Koji
A1  - Kamiya, Kazuhiko
Y1  - 2026///
KW  - Volatile organic compound
KW  - nonthermal plasma
KW  - ozone
KW  - hydroxyl radical
KW  - indirect plasma
JF  - International Journal of Plasma Environmental Science and Technology
VL  - 20
IS  - 1
SP  - e01004
EP  - e01004
DO  - https://doi.org/10.34343/ijpest.2026.20.e01004
UR  - https://ijpest.com/Contents/20/1/e01004.html
N2  - To provide design guidance for volatile organic compound (VOC) abatement devices, we numerically simulate VOC decomposition in atmospheric-pressure air using direct (in-reactor) and indirect (plasma-injection) nonthermal plasma methods via Microsoft Excel Visual Basic for Applications, and compare predictions with experimental results. Sixteen chemical species, including electrons, are considered for the air plasma with diluted VOC, integrated with a 33-reaction kinetic mechanism to simulate transient species evolutions. The direct-plasma model was calibrated to published toluene (C6H5CH3) decomposition data from a coaxial dielectric-barrier-discharge reactor and then transferred, without further tuning, to predict the performance of the indirect plasma-injection configuration for VOC of allyl disulfide (C6H10S2). Across four tubular-channel regions, simulations capture ozone formation and VOC decomposition trends, yielding predicted outlet concentrations as well as other radical components. The experimental VOC removal efficiency (77.5% - 83.7%) agrees qualitatively with the calculated data (83.7% - 99.9%).
ER  -