Commissariat a L'energie Atomique

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

Ifp Energies Nouvelles

Institut Francais Du Pe'trole

Europlasma

Jean-Marie Seiler

Matthieu Rolland

Nicolas Boudet

Maxime Labrot

Meryl Brothier

Eric Marty

Jean Geffroy

Yves Bergamaschi

Guillaume Boissonnet

Sylvie Rouge

Imre Szabo

Francois Balard

Gian L Fiorini

Patrick Gramondi

Eric Lemarie

Ulysse Michon

Jerome Bayle

A method of thermal treatment of material in a reactor with a high-temperature chamber and with a self-crucible wall, including at least determining liquidus temperature Tof ashes derived from the treated material, wherein the operating temperature of the reactor Tin its steady state is then chosen such that T&#x3e;T.

Method for the heat treatment of material in a reactor having a wall acting as self-crucible

The process that is the object of the invention describes a process whose purpose is to produce a purified synthesis gas from lignocellulosic biomass that includes a pyrolysis stage, a purification stage placed upstream from the partial oxidation stage, and a cooling stage.

Method for producing a purified synthesis gas from a biomass including a purification step upstream from the partial oxidation

In order to ensure the recovery and confinement of the core of a nuclear reactor, such as a pressurized water reactor, in the case of a serious accident leading to its melting or meltdown, it is proposed that below the reactor vessel (16) be placed a receptacle (20) able to evacuate the water accumulated below the vessel (16) in the initial phase of the accident and then collect the molten core debris. The water automatically flows through overflow and siphon devices (46, 50) into a cooling space (40) located below the receptacle. If the meltdown of the core (18) has been detected, the water contained in tanks (56) flows by gravity into the space (40), so as to entirely immerse the containers (26) placed in said space. The molten core traversing the bottom of the vessel (16) flows into the receptacle (20) and then into containers (26) via meltable plugs (32) and a natural convection flow is established between the tanks (56) and the space (40) in order to ensure cooling. Fall absorbers or dampers (76) are placed in the receptacle (20) for the case where the bottom of the vessel (16) drops in a single block.

Nuclear reactor equipped with a core catcher

Growing community of inventors

Seyssins, France

Jean-Marie Seiler