| 摘要 |
<p>PURPOSE:To provide a large silent discharge generating space, gas permeable and stabilized, by setting structure for permeating gas with a number of air- permeable small hole spaces constituted of dielectric materials showing relative permittivity of given range between a couple of electrodes. CONSTITUTION:A net-shaped ground electrode 8 and an electric field applicator 9 formed with conductive materials are provided in an insulated device case 5, and globular particles 11 constituted of dielectric materials of the given relative permittivity such as barium titanate and the like are filled between said both electrodes 8 and 9 to constitute a structure 10 for permeating gas. When alternating voltage is applied from an electric source 14 to the electric field applicator 9, external electric field is applied to the whole of globular particles 11, and silent discharge is generated in slightly formed spaces between globular particles 11. For instance, the air to be treated containing NO flows from the upstream side 6 of the gas 5 to the downstream side 7 to mix NH3 and water content into the air to be treated. The air to be treated reacts during passing the area of generating silent discharge and turns into NH4NO3 and the like which are adhered to the surface of globular particles 11 and collected.</p> |
