Dielectric barrier discharge plasma reactor

Franck Clement (1) , Laurent Marlin , Michel Mangin , Bernard Held , Fanny Girard-Sahun

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux

The invention relates to a dielec. barrier discharge plasma reactor comprising a chamber that is subjected to atm. pressure and that has at least one entrance orifice for a plasma gas and at least one exit orifice for cold plasma at atm. pressure. The reactor is characterised in that the chamber furthermore comprises, an internal tube and an external tube that are arranged so that at least one section of the internal tube extends into the interior of the external tube parallelly to the longitudinal axis of the external tube, and so as to define a diffusion space, which is formed in the interior of the external tube between the lower end of the internal tube and the lower end of the external tube, and an annular space, which is formed between the external surface of the wall of the internal tube and the internal surface of the wall of the external tube. This arrangement allows a cold plasma at atm. pressure generated in the internal tube to be made more diffuse in the diffusion space.

Mots clés: Electric discharge; Electric insulators; Electric potential; Electrodes; Pipes and Tubes; Plasma; Reactors; Surface; Diffusion

Domaines: Chimie théorique et/ou physique; Chimie analytique; Polymères; Matériaux

Franck Clement, Laurent Marlin, Michel Mangin, Bernard Held, Fanny Girard-Sahun. Dielectric barrier discharge plasma reactor. France, N° de brevet: WO 2018115774. 2018. ⟨hal-01974161⟩