Plasma-catalytic Reactor for Decomposition of Chlorinated Hydrocarbons

Abstract

The conversion of trichloromethane in mixtures with air was investigated under normal pressure in a gliding discharge (GD) reactor operated in both a homogeneous gas system and with a solid catalyst. The Pt catalyst supported by a honey-comb cordierite structure was placed in the reactor below the ends of the electrodes. Cl 2 and HCl were the main products of the CHCl 3 conversion. The presence of CCl 4 was also noted. The influence of the electrode length and the distance between the electrodes in the narrowest section on CHCl 3 conversion was examined. The Pt catalyst revealed some activity in the trichloromethane processing. This resulted in an increased overall CHCl 3 conversion with the portion of CHCl 3 converted to CCl 4 smaller than that in the homogeneous system. The effect of temperature on CHCl 3 conversion was found to be significant.

A comparison of carbon tetrachloride decomposition using spark and barrier discharges

“…5 and 6). This result corresponded with the results obtained in other discharges and other models of reactors [13][14][15][16]. A small amount of COCl 2 was formed only in spark discharge (Fig.…”

Plasma-Catalytic Process of Hydrogen Production from Mixture of Methanol and Water

“…Various plasma-catalytic systems are used. A catalyst may be located in a plasma zone [1][2][3][4][5][6][7], an electrode may be the catalyst [8,9], and often the catalyst is located outside the plasma zone [1,[10][11][12][13][14][15][16][17][18]. This way of placing the catalyst prevents the destruction of the catalyst by plasma and the disturbance of the discharge.…”

Destruction of acenaphthene, fluorene, anthracene and pyrene by a dc gliding arc plasma reactor

“…4, it is obvious that the 300-400 nm scans are predominated by the N 2 (C 3 u → B 3 u ) 2nd positive system, which indicates that electronic excited state of nitrogen molecules abound in a nitrogen gliding discharge. Nowadays, gliding arc plasma has attracted considerable interest on its applications: VOCs abatement [13][14][15][16], degradation of wastewater [17][18][19][20], hydrogen production [21][22].…”