Commissariat a L'energie Atomique

Compagnie Generale Des Matieres Nucleaires

Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Christophe Girold

Roger Boen

Lionel Bruguiere

Armand Bonnetier

Florent Lemort

Louis Bojat

Olivier Pinet

Arnaud Bourgier

Vlatko Materic

A transferred-arc plasma torch comprising a sheath cooled using a cooling fluid and an electrode inserted in said sheath. The electrode is made of a consumable material and the torch comprises means to supply the electrode with this material so as to offset its erosion.

Transferred-arc plasma torch

The invention concerns a process enabling the complete combustion and oxidation of the mineral fraction of combustible waste contained in an apparatus intended to treat waste by direct incineration-vitrification, said process comprising the following steps:

Process for the complete combustion and oxidation of the mineral fraction of waste treated in direct incineration-vitrification apparatus

Process for combustion and vitrification of waste in which at least one oxygen plasma jet is associated with a continuous melting device by high frequency direct induction. The crucible is composed of a continuous external shell and a sole plate, both cooled by a liquid circulating in internal channels. The inductor is placed below the sole plate. There is a gravity drain valve at the bottom or on the side.

Vitrification furnace with dual heating means

Process for the production of hydrogen by the thermochemical route from water, based on the chlorine/cerium cycle, in which, according to a first reaction scheme, the following reactions are carried out:HO+Cl=2HCl+&#xbd;O;&#x2003;&#x2003;(A)8HCl+2CeO=2CeCl+Cl+4HO;&#x2003;&#x2003;(B)2CeCl+4HO=2CeO+6HCl+H;&#x2003;&#x2003;(C)or in which, according to a second reaction scheme, the following reactions are carried out:HO+Cl=2HCl+&#xbd;O;&#x2003;&#x2003;(A)8HCl+2CeO=2CeCl+Cl+4HO;&#x2003;&#x2003;(B)2CeCl+2HO=2CeOCl+4HCl;&#x2003;&#x2003;(B')2CeOCl+2HO=2CeO+2HCl+H;&#x2003;&#x2003;(C&#x2032;)and in which the reaction (B) for the chlorination of cerium oxide is carried out in the liquid phase, the cerium chloride passing into solution.

Process for the production of hydrogen by the thermochemical route, based on the hydrochlorination of cerium

Cartridge for a plasma torch and plasma torch fitted therewith

The invention concerns a plasma torch comprising an interchangeable cartridge ( ) consisting of six components only: an electroplating copper anode nozzle ( ); an electroplating cathode support ( ); a doped tungsten cathode ( ); a plastic cathode diffusing-centring device ( ); a plastic assembling device ( ); a ceramic insert ( ). Said components are assembled by pressing and the assembly of the components form volumes ( ) constituting the anode cooling circuit and the plasma forming gas intake conduits ( ). The intake and discharge of fluid are provided by a connecting and maintaining structure designed for the easy mounting of the cartridge ( ).

Growing community of inventors

Piolenc, France

Christophe Girold