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1. (WO2002007864) METHOD FOR CATALYTIC TREATMENT OF A GAS FOR REDUCING NITROGEN OXIDE EMISSION

Pub. No.:    WO/2002/007864    International Application No.:    PCT/FR2001/002201
Publication Date: Jan 31, 2002 International Filing Date: Jul 9, 2001
IPC: B01D 53/94
B01J 23/63
B01J 37/30
Applicants: RHODIA TERRES RARES
UNIVERSITE PIERRE ET MARIE CURIE, PARIS VI
DJEGA-MARIADASSOU, Gérald
THOMAS, Cyril
GORCE, Olivier
Inventors: DJEGA-MARIADASSOU, Gérald
THOMAS, Cyril
GORCE, Olivier
Title: METHOD FOR CATALYTIC TREATMENT OF A GAS FOR REDUCING NITROGEN OXIDE EMISSION
Abstract:
The invention concerns a method for treating a gas to reduce nitrogen oxide emission. Said method is of the type using a catalytic composition comprising an active phase on a support and is characterised in that the active phase is based on rhodium in the form Rhx+ and at least another element selected among palladium and platinum and the support is based on cerium oxide and zirconium oxide. Gases capable of being treated by said method include in particular those derived from gas turbines, from gas-fired or coal-fired steam plant boilers or from internal combustion engines.