1
Barthe Philippe, Macaudiere Pierre, Seguelong Thierry: Spinel catalyst for the reduction of nitrogen oxide emissions.. Rhone Poulenc Chimie, October 11, 1995: EP0676232-A1 (20 worldwide citation)

The use of a homogeneous catalyst of spinel structure and formula ZnAl2O4 or an oxide of spinel structure (normal or inverse) other than ZnAl2O4, for the treatment of exhaust gases with a high O2 content, is claimed. Pref. the oxide of spinel structure (normal or inverse) corresp. to the formula:- A ...


2
Huguenin Denis, Pettini Fabienne, Seguelong Thierry: Pigments containing zirconium oxide and an oxide of cerium, praseodymium and/or terbium, their preparation and their use.. Rhone Poulenc Chimie, May 24, 1995: EP0654507-A1 (3 worldwide citation)

Coloured pigments of orange-yellow type which are characterised in that they are based on zirconium oxide and on at least one rare earth chosen from cerium, terbium and praseodymium. These pigments can be employed as colouring matter in plastics, paints, varnishes, rubbers, ceramics, glazes, papers, ...


3
Bataille Alain, Hedouin Catherine, Seguelong Thierry: Method for treating gas to reduce nitrogen oxide emission. Rhone Poulenc Chimie, December 26, 1997: FR2750058-A1 (3 worldwide citation)

The invention discloses a method for treating gas to reduce nitrogen oxide emission and a catalyst system for implementing this method. The method is characterised by the use of a catalyst composition essentially consisting of platinum or of platinum and manganese, deposited on a support, and which ...


4
Bouly Christophe, Pontier Thierry, Sarda Christian, Birchem Thierry, Hedouin Catherine, Seguelong Thierry, Moral Najat, Guyon Marc, Bert Christian: Purifying composition with nox treatment and internal combustion engine exhaust gases. Ecia Equip Composants Ind Auto, November 10, 2000: FR2793163-A1 (2 worldwide citation)

The invention concerns a composition for purifying exhaust gases of an internal combustion engine capable of consuming fuel with lean air-fuel ratios comprising means adsorbing the NOx present in the exhaust gases, in the presence of excess oxygen and releasing the adsorbed NOx when the oxygen conce ...


5
Macaudiere Pierre, Seguelong Thierry: Compose du type lamo3, m etant laluminium, le gallium ou lindium, sous forme poudre ou sous forme frittee, son procede de preparation et son utilisation en tant que conducteur doxygene. Rhone Poulenc Chimie, May 29, 1998: FR2756270-A1 (2 worldwide citation)

The invention concerns a LaMO3 type composition, M being aluminium, gallium or indium, in powder or sintered form, its method of preparation and its use as conductor of oxygen. The compound in powder form is capable of reaching by loose powder sintering a density at least equal to 93 % of its theore ...


6
Bert Christian, Guyon Marc, Moral Najat, Bouly Christophe, Pontier Thierry, Sarda Christian, Birchem Thierry, Fritz Arno, Hedouin Catherine, Seguelong Thierry: Dispositif depuration des gaz dechappement pour moteur a combustion interne. Renault, November 10, 2000: FR2793161-A1 (2 worldwide citation)

The invention concerns a device for purifying an internal combustion engine exhaust gases comprising an internal combustion engine capable of consuming fuel with lean air-fuel mixture ratios, means for adsorbing NOx arranged in the engine exhaust line, said means being of the type which adsorb the N ...


7
Hedouin Catherine, Seguelong Thierry: Composition a support a base dun oxyde de cerium, dun oxyde de zirconium et dun oxyde de scandium ou de terre rare et utilisation pour le traitement des gaz dechappement. Rhone Poulenc Chimie, May 14, 1999: FR2770790-A1 (1 worldwide citation)

The invention concerns a composition characterised in that it comprises a support based on cerium oxide, zirconium oxide and scandium or rare earth oxide other than cerium and a supported phase based on manganese and at least another element selected among alkaline, alkaline-earth and rare earth ele ...


8
Birchem Thierry, Hedouin Catherine, Seguelong Thierry: Composition useful as trap for nitrogen oxides emissions in exhaust gases is based on manganese and alkaline earth or rare earth element. Rhone Poulenc Chimie, October 27, 2000: FR2792547-A1 (1 worldwide citation)

A manganese-based composition comprises an active phase and a support is effective in absorbing NOx gases in conditions where a stoichiometric excess of O2 is present in exhaust gases, to supplement a conventional 3-way catalyst which is ineffective in reducing NOx in these conditions. A composition ...


9
Bouly Christophe, Pontier Thierry, Sarda Christian, Fritz Arno, Hedouin Catherine, Seguelong Thierry, Moral Najat, Guyon Marc, Bert Christian: Composition for purifying an internal combustion engine exhaust gases. Ecia Equip Composants Ind Auto, November 10, 2000: FR2793164-A1 (1 worldwide citation)

The invention concerns a composition for purifying exhaust gases of an internal engine capable of consuming fuel with lean air-fuel ratios, comprising means adsorbing NOx present in the exhaust gases, in the presence of excess oxygen and which release the adsorbed NOx when the oxygen concentration o ...


10
HARLE VIRGINIE, SEGUELONG THIERRY: [fr] PROCEDE POUR LE DIAGNOSTIC EXTERNE DU DYSFONCTIONNEMENT DUN DISPOSITIF DADDITIVATION DUN ADDITIF DANS UN CARBURANT POUR UN VEHICULE, [en] Method for external diagnosis of malfunction of e.g. lubricant additive, additivation device in vehicles diesel engine, involves analyzing variation between measured and theoretical additive contents with respect to maximum variation. RHODIA OPERATIONS, July 5, 2013: FR2985316-A1

[en] The method involves analyzing a fuel in a tank of a vehicle to measure an additive content in the fuel by a spectrometer associated with optical fiber and probe placed in the tank by using spectroscopic analysis technique after additivation request, where the additive is in form of suspension o ...