公开(公告)号：CA2275942C

公开(公告)日：2003-07-08

申请号：CA2275942

申请日：1997-12-18

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10

Abstract: La présente invention concerne un procédé de traitement de gaz d'échappement de moteurs à combustion interne fonctionnant avec un carburant contenant du soufre. Ce procédé est caractérisé en ce qu'on utilise, à titre de catalyseur, une composition à base d'un oxyde de cérium et d'un oxyde de zirconium, dans une proportion atomique cérium/zirconium d'au moins 1, et d'au moins un oxyde choisi parmi l'oxyde d'yttrium, de lanthane et de praséodyme et qui présente une surface spécifique après calcination de 6 heures à 900 ~C d'au moins 35 m2/g.

公开(公告)号：FR2757425B3

公开(公告)日：1999-03-19

申请号：FR9615836

申请日：1996-12-23

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10 ,  B01J21/06

Abstract: The present invention relates to a process for the treatment of exhaust gases from internal combustion engines operating with a fuel containing sulphur. This process is characterized in that use is made, as catalyst, of a composition based on a cerium oxide and on a zirconium oxide, in a cerium/zirconium atomic proportion of at least 1, and on at least one oxide chosen from yttrium, lanthanum and praseodymium oxide and which exhibits a specific surface, after calcination for 6 hours at 900 ° C., of at least 35 m2/g.

公开(公告)号：AT177972T

公开(公告)日：1999-04-15

申请号：AT96901040

申请日：1996-01-10

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  QUEMERE ERIC ,  TOURET OLIVIER ,  VISCIGLIO VALERIE

IPC: B01D53/94 ,  B01J23/10 ,  B01J23/34 ,  B01J23/76 ,  B01J23/83

Abstract: PCT No. PCT/FR96/00039 Sec. 371 Date Sep. 9, 1997 Sec. 102(e) Date Sep. 9, 1997 PCT Filed Jan. 10, 1996 PCT Pub. No. WO96/21506 PCT Pub. Date Jul. 18, 1996The invention provides a catalytic composition which is based on a cerium oxide and on at least one other oxide chosen from iron, manganese and praseodymium oxides, which controls H2S emissions in the catalysis of treatment of automobile exhaust gas.

公开(公告)号：CA2275942A1

公开(公告)日：1998-07-02

申请号：CA2275942

申请日：1997-12-18

Applicant: RHODIA CHIMIE SA

Inventor： VISCIGLIO VALERIE ,  BLANCHARD GILBERT

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10

Abstract: La présente invention concerne un procédé de traitement de gaz d'échappement de moteurs à combustion interne fonctionnant avec un carburant contenant du soufre. Ce procédé est caractérisé en ce qu'on utilise, à titre de catalyseur, une composition à base d'un oxyde de cérium et d'un oxyde de zirconium, dans une proportion atomique cérium/zirconium d'au moins 1, et d'au moins un oxyde choisi parmi l'oxyde d'yttrium, de lanthane et de praséodyme et qui présente une surface spécifique après calcination de 6 heures à 900 ~C d'au moins 35 m2/g.

公开(公告)号：ES2195192T3

公开(公告)日：2003-12-01

申请号：ES97952105

申请日：1997-12-18

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10

Abstract: The present invention relates to a process for the treatment of exhaust gases from internal combustion engines operating with a fuel containing sulphur. This process is characterized in that use is made, as catalyst, of a composition based on a cerium oxide and on a zirconium oxide, in a cerium/zirconium atomic proportion of at least 1, and on at least one oxide chosen from yttrium, lanthanum and praseodymium oxide and which exhibits a specific surface, after calcination for 6 hours at 900 ° C., of at least 35 m2/g.

公开(公告)号：AT235303T

公开(公告)日：2003-04-15

申请号：AT97952105

申请日：1997-12-18

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10

Abstract: The present invention relates to a process for the treatment of exhaust gases from internal combustion engines operating with a fuel containing sulphur. This process is characterized in that use is made, as catalyst, of a composition based on a cerium oxide and on a zirconium oxide, in a cerium/zirconium atomic proportion of at least 1, and on at least one oxide chosen from yttrium, lanthanum and praseodymium oxide and which exhibits a specific surface, after calcination for 6 hours at 900 ° C., of at least 35 m2/g.

公开(公告)号：NO324418B1

公开(公告)日：2007-10-08

申请号：NO993106

申请日：1999-06-22

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/94 ,  B01D53/86 ,  B01J23/10 ,  B01J35/10

Abstract: The present invention relates to a process for the treatment of exhaust gases from internal combustion engines operating with a fuel containing sulphur. This process is characterized in that use is made, as catalyst, of a composition based on a cerium oxide and on a zirconium oxide, in a cerium/zirconium atomic proportion of at least 1, and on at least one oxide chosen from yttrium, lanthanum and praseodymium oxide and which exhibits a specific surface, after calcination for 6 hours at 900 ° C., of at least 35 m2/g.

公开(公告)号：NO993106L

公开(公告)日：1999-08-19

申请号：NO993106

申请日：1999-06-22

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10

Abstract: The present invention relates to a process for the treatment of exhaust gases from internal combustion engines operating with a fuel containing sulphur. This process is characterized in that use is made, as catalyst, of a composition based on a cerium oxide and on a zirconium oxide, in a cerium/zirconium atomic proportion of at least 1, and on at least one oxide chosen from yttrium, lanthanum and praseodymium oxide and which exhibits a specific surface, after calcination for 6 hours at 900 ° C., of at least 35 m2/g.

公开(公告)号：NO993106A

公开(公告)日：1999-08-19

申请号：NO993106

申请日：1999-06-22

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10

CPC classification number: B01D53/945 ,  B01J23/10 ,  B01J35/1014 ,  Y02T10/22

公开(公告)号：FR2757425A1

公开(公告)日：1998-06-26

申请号：FR9615836

申请日：1996-12-23

Applicant: RHODIA CHIMIE SA

Inventor： BLANCHARD GILBERT ,  VISCIGLIO VALERIE

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/10 ,  B01J35/10 ,  B01J21/06

Abstract: The invention concerns a method for treating exhaust gas of internal combustion engines functioning with sulphur-containing fuel. This method is characterised in that it consists in using as catalyst a composition with base of a cerium oxide and a zirconium oxide, in a cerium/zirconium atomic proportion of at least 1, and of at least an oxide selected among yttrium, lanthanum and praseodym oxides having a specific surface area of at least 35m /g after 6 hour calcination at 900 DEG C.