Title:
COMPOSITION BASED ON A FERRIERITE AND ITS USE IN A GAS TREATMENT METHOD FOR REDUCING NITROGEN OXIDE EMISSIONS
Document Type and Number:
WIPO Patent Application WO2003045547
Kind Code:
A3
Abstract:
The invention concerns catalytic compositions comprising a zeolite and methods for reducing nitrogen oxides (NOx) using said catalytic compositions. The inventive catalytic compositions comprise a ferrierite type zeolite (FER), which has been subjected to an ion-exchange with a rare earth selected among cerium, praseodymium, samarium, terbium, europium and ytterbium, said zeolite capable of being in particular Ce-H-Fer. Said compositions are very active in selective catalytic NOx reduction even if the reaction is produced in the presence of water and sulphur compounds.
Inventors:
BLANCHARD GILBERT (FR)
VAN DEN BLEEK COR (NL)
CALIS HANS PETER (NL)
KRUSE NORBERT (BE)
NOIROT REMI (FR)
TACHON DENIS (BE)
SEIJGER GERMAINE (NL)
VAN DEN BLEEK COR (NL)
CALIS HANS PETER (NL)
KRUSE NORBERT (BE)
NOIROT REMI (FR)
TACHON DENIS (BE)
SEIJGER GERMAINE (NL)
Application Number:
PCT/FR2002/004019
Publication Date:
January 22, 2004
Filing Date:
November 22, 2002
Export Citation:
Assignee:
ATOFINA RES (BE)
PEUGEOT CITROEN AUTOMOBILE S A (FR)
RHODIA ELECT & CATALYSIS (FR)
UNIV DELFT TECH (NL)
UNIV BRUXELLES (BE)
BLANCHARD GILBERT (FR)
VAN DEN BLEEK COR (NL)
CALIS HANS PETER (NL)
KRUSE NORBERT (BE)
NOIROT REMI (FR)
TACHON DENIS (BE)
SEIJGER GERMAINE (NL)
PEUGEOT CITROEN AUTOMOBILE S A (FR)
RHODIA ELECT & CATALYSIS (FR)
UNIV DELFT TECH (NL)
UNIV BRUXELLES (BE)
BLANCHARD GILBERT (FR)
VAN DEN BLEEK COR (NL)
CALIS HANS PETER (NL)
KRUSE NORBERT (BE)
NOIROT REMI (FR)
TACHON DENIS (BE)
SEIJGER GERMAINE (NL)
International Classes:
B01D53/86; B01D53/94; B01J23/10; B01J29/06; B01J29/65; B01J29/67; B01J35/00; (IPC1-7): B01J29/65; B01J29/67; B01J29/06; B01D53/94; B01J23/10
Domestic Patent References:
| WO1999029400A1 | 1999-06-17 | |||
| WO1999003579A1 | 1999-01-28 |
Foreign References:
| EP1166856A2 | 2002-01-02 | |||
| EP0555889A1 | 1993-08-18 | |||
| US6047544A | 2000-04-11 | |||
| US6013171A | 2000-01-11 | |||
| EP1147801A1 | 2001-10-24 | |||
| US5433933A | 1995-07-18 | |||
| US5514355A | 1996-05-07 | |||
| US5427989A | 1995-06-27 |
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