Abstract: A plasma reactor (11) of the silent discharge or dielectric barrier type for treatment of a gaseous medium is provided with a layer of material (34) positioned to present a surface extending along at least part of the length of the gas flow path. Particulates or selected species are entrapped on the surface. A preferred electrode arrangement provides surface discharge in the plasma at the surface of the layer of material.

Abstract: A modular corona discharge reactor in which individual reactor chambers are arranged vertically and are grouped in serial pairs.

Abstract: A plasma reactor (11) of the silent discharge or dielectric barrier type for treatment of a gaseous medium is provided with a layer of material (34) positioned to present a surface extending along at least part of the length of the gas flow path. Particulates or selected species are entrapped on the surface. A preferred electrode arrangement provides surface discharge in the plasma at the surface of the layer of material.

Abstract: Hydrogen is generated from hydrocarbon fuel by a reforming reaction in a reactor (11) in which gaseous hydrocarbon and reforming reaction agents are subjected to the formation of a plasma having an electric field strength within the plasma exceeding 10,000 volts per centimetre, preferably at least 20,000 volts/cm, more preferably at least 40,000 volts/cm or even 80,000 volts/cm. The apparatus has electrodes (14, 15, 16) and dielectric material (22-27), the configuration of which allows for plasma having the electric field strength defined above.

Abstract: A reactor for non-thermal plasma assisted treatment of a gaseous medium incorporates at least one electrically conducting mesh filter element positioned so that gaseous medium passes therethrough. At least one dielectric barrier layer provides for a dielectric barrier type discharge, when an electrical power supply is connected to the electrodes to generate the plasma.

Abstract: A corona discharge reactor is for use in processing materials in or carried by a gaseous phase. A plurality of cylindrical individual reactor chambers is provided in an array. The reactor chambers are electrically matched with each other and pulses of electrical energy are supplied under sequential control to each of the individual reactor chambers.

Abstract: A corona discharge reactor which has a central electrode in the form of a metal rod with radial projections and a cylindrical outer electrode surrounding the inner electrode.