INVESTIGATION OF THE PROCESSES OF DESTRUCTION OF FREON-113 IN A NANOSECOND CORONA DISCHARGE

The results of the experimental investigation of the processes of dest ruction of Freon (CFC) in a pulse-periodic, nanosecond corona discharg e are presented. The efficiency of different channels of Freon destruc tion is analyzed. It is demonstrated that, at high Freon content, the main channels are provided by the destruction of CFC upon collision wi th the excited particles formed in the discharge and with radicals, an d by the dissociation of Freon by electric impact, and, for low Freon content, by the processes of dissociative attachment of electrons. On the basis of experimental data, the constant of destruction of Freon-1 13 upon collisions with atoms of oxygen O(P-3) is estimated, k = (0.5- 1) x 10(-12) cm(3)/s. The energy consumption for the destruction of on e molecule of Freon-113 for different percentages of CFC in air is exp erimentally determined. The Freon destruction products resulting from plasmochemical reactions at the after-discharge stage are determined f rom the analysis of UV absorption spectra. It is found that molecular chlorine is the main product of Freon destruction. The results of nume rical simulation of the process of Freon-113 destruction in a pulse-pe riodic discharge are presented and compared with experimental data.