Modeling of formaldehyde destruction under pulsed discharge plasma

Abstract

The chemical reactions that induce the decomposition of formaldehyde have been investigated using the Monte‐Carlo simulation method. The simulation results, of plasma chemical reaction kinetics in pulsed discharge, showed that the pulse width of applied voltage should be in the range of 100–500 ns to maintain a higher density of radicals. The higher electron density was due to a higher radical density. Furthermore, increasing the content of oxygen and H₂O in gas would obtain a higher radical density. Under the simulation conditions, the radical oxygen played a vital role, and the reaction time for 50% of the formaldehyde degradation (100 ppm) was approximately 50 μs.

Key words:

• Pulse discharge
• plasma
• Monte‐Carlo method
• formaldehyde

Notes

Corresponding author; e‐mail: ce‐[email protected]