Centre National De La Recherche Scientifique

Saint-gobain Centre De Recherches Et D'etudes Europeen

Universite Claude Bernard – Lyon1

Universitè De Montpellier

Ecole Nationale Superieure De Chimie De Montpellier

Université Montpellier 2 Sciences Et Techniques

Christian Gilbert Guizard

Agnes Princivalle

Philippe Vernoux

Abdelkader Hadjar

Michaela Klotz

Sylvain Deville

Daniel Urffer

Idris Amirouche

Andre Larbot

Jacques C Rouviere

Louis Cot

Daniel Aubert

Helena Kaper

Agnès Princivalle

A filter for the filtration of a fluid, such as a liquid, includes or composed of a support element made of a porous ceramic material, the element having a tubular or parallelepipedal shape delimited by an external surface and including, in its internal portion, a set of adjacent channels with axes parallel to one another and separated from one another by walls of the porous inorganic material, wherein at least a portion of the channels and/or at least a portion of the external surface are covered with a porous separating membrane layer, wherein the layer is made of a material essentially composed of sintered grains of silicon carbide (SiC), and the weight content of elemental oxygen of the layer is less than 0.5%.

Filters comprising oxygen-depleted SiC membranes

Process for the manufacture of a mesoporous product comprising the following successive steps:

Process for the manufacture of a mesoporous product

Catalyst system suitable especially for the removal of CO compounds, comprising or consisting of an oxide, preferably of fluorite crystalline structure, conforming to the following molar formulation:CeMADO,wherein Ce is cerium, A represents at least one element possessing a plurality of oxidation states and selected from Ti, Ga, In, V, Cr, Mn, Fe, Sn, Co, Ni, Cu, M represents at least one element selected from Gd, Y, Sc, Sm, Nd, Pr, Zn, D represents at least one element other than A and selected from Pt, Pd, Rh, Ru, Cu, Fe, Ag, and Au, u is between 0.05 and 0.45, y is between 0.01 and 0.4, Z is greater than 0 and less than 0.4, v is between 0.001 and 0.4, and x is greater than 0.

Exhaust gas treatment catalyst

The present invention relates to an electrocatalytic system for the joint treatment of oxidizing polluting entities of the NOtype and reducing polluting entities of the hydrocarbons HC or CO type present in a gas to be purified, in particular an exhaust gas resulting from a combustion engine, said system comprising:

Electrochemical catalysis system

The invention relates to a filtration structure, for filtering a gas coming from a diesel engine, which is laden with gaseous pollutants of the nitrogen oxide NOtype and with solid particles, of the particulate filter type, said filtration structure being characterized in that it includes a catalytic system comprising at least one noble metal or transition metal suitable for reducing the NOand a support material, in which said support material comprises or is made of a zirconium oxide partially substituted with a trivalent cation Mor with a divalent cation M', said zirconium oxide being in a reduced, oxygen-sub-stoichiometric, state.

Purification structure including a catalysis system supported by a zircon in reduced state

The present invention relates to the use, for the reduction of oxidizing contaminating entities of the NOtype, in particular NO, present in a gas to be purified, of a catalytic system comprising or composed of an oxide corresponding to the molar formulation:CeOMN,

Method for the preparation of metallic oxide coatings

Growing community of inventors

Cournonteral, France

Christian Gilbert Guizard