公开(公告)号：CA2426315A1

公开(公告)日：2002-05-02

申请号：CA2426315

申请日：2001-09-08

Applicant: DEGUSSA

Inventor： STOCHNIOL GUIDO ,  TACKE THOMAS ,  REISINGER MARTIN ,  HAUSMANN RALF ,  CHEN BAOSHU ,  PANSTER PETER ,  KREUZER THOMAS ,  MUSSMANN LOTHAR ,  LINDNER DIETER ,  HARRIS MICHAEL ,  LOX EGBERT

IPC: B01D53/86 ,  B01D53/94 ,  B01J23/40 ,  B01J23/63 ,  B01J27/053 ,  B01J37/02 ,  B01J37/14

Abstract: The invention relates to a high performance catalyst containing a layer on a n inert carrier body comprising noble metals from the platinum group deposited on support materials. The catalyst is characterised in that, the layer comprises platinum deposited in a washcoat consisting of Al203 which is stabilized with lanthana (La2O3), ceria (CeO2), which is stabilized with zirconia (ZrO2) and praseodymium (Pr6O11). The supprot is promoted by sulfur - containing compounds which come from at least one of following compounds: platinum sulfite (PtSO3), sulfuric acid (H2SO4), ammonium sulfate ((NH4)2SO4 ), titanium oxysulfate (TiOSO4), titanium sulfate (Ti2(SO4)3), and zirconium sulfate (Zr(SO4)2).

公开(公告)号：CA2103647C

公开(公告)日：1999-03-23

申请号：CA2103647

申请日：1993-08-09

Applicant: DEGUSSA

Inventor： LINDNER DIETER ,  LOX EGBERT ,  ENGLER BERND ,  OSTGATHE KLAUS

IPC: B01D53/04 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20

Abstract: A considerable reduction in hydrocarbon emissions during the cold start of internal combustion engines can be achieved if the actual exhaust gas catalyst is preceded in the exhaust pipe by a hydrocarbon adsorber of which the heat capacity is made greater than the heat capacity of the following catalyst through a suitable choice of material and configuration of the adsorber.

公开(公告)号：CA2234355A1

公开(公告)日：1998-10-09

申请号：CA2234355

申请日：1998-04-08

Applicant: DEGUSSA

Inventor： LINDNER DIETER ,  MUSSMANN LOTHAR ,  VAN YPEREN RENEE ,  KREUZER THOMAS ,  LOX EGBERT

IPC: B01D53/94 ,  B01J20/06 ,  B01J23/02 ,  B01J23/44 ,  B01J23/58 ,  B01J23/63 ,  B01J23/78 ,  B01J23/89 ,  B01J37/18 ,  F01N3/00 ,  B01J21/04

Abstract: The invention relates to a single-layered three-way catalytic converter containing only palladium, with high activity and heat resistance. The catalyst contains, in addition to finely divided, stabilised aluminium oxide, at least one finely divided cerium/zirconium mixed oxide and optionally finely divided nickel oxide, as well as highly dispersed amounts of cerium oxide, zirconium oxide and barium oxide. The palladium is distributed largely uniformly throughout the entire catalyst.

公开(公告)号：PL174499B1

公开(公告)日：1998-08-31

申请号：PL30122893

申请日：1993-11-26

Applicant: DEGUSSA

Inventor： LINDNER DIETER ,  LOX EGBERT ,  ENGLER BERND ,  OSTGATHE KLAUS

IPC: B01D53/72 ,  B01D53/02 ,  B01D53/04 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N13/02 ,  F02B1/04 ,  B01D53/36

公开(公告)号：ZA9710113B

公开(公告)日：1998-06-08

申请号：ZA9710113

申请日：1997-11-10

Applicant: DEGUSSA

Inventor： MUSSMANN LOTHAR ,  LINDNER DIETER ,  YPEREN RENEE VAN ,  LOX EGBERT ,  KREUZER THOMAS

IPC: B01D53/94 ,  B01J23/63 ,  B01J29/068 ,  B01J29/08 ,  B01J29/40 ,  B01J29/80 ,  B01J37/02 ,  F01N3/28 ,  B01D ,  B01J ,  F01N

公开(公告)号：FI935278A

公开(公告)日：1994-05-28

申请号：FI935278

申请日：1993-11-26

Applicant: DEGUSSA

Inventor： LINDNER DIETER ,  LOX EGBERT ,  ENGLER BERND ,  OSTGATHE KLAUS

IPC: B01D53/72 ,  B01D53/02 ,  B01D53/04 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N13/02 ,  F02B1/04 ,  F01N3/10

公开(公告)号：HU9303345D0

公开(公告)日：1994-03-28

申请号：HU9303345

申请日：1993-11-24

Applicant: DEGUSSA

Inventor： LINDNER DIETER ,  LOX EGBERT ,  ENGLER BERND ,  OSTGATHE KLAUS

IPC: B01D53/72 ,  B01D53/02 ,  B01D53/04 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N13/02 ,  F02B1/04

公开(公告)号：ZA9305775B

公开(公告)日：1994-03-08

申请号：ZA9305775

申请日：1993-08-09

Applicant: DEGUSSA

Inventor： LINDNER DIETER ,  LOX EGBERT ,  ENGLER BERND ,  OSTGATHE KLAUS

IPC: B01D53/04 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N ,  B01D ,  B01J

CPC classification number: B01D53/9481 ,  B01D53/0454 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/20 ,  F01N2250/12 ,  F01N2370/24 ,  Y02A50/2322 ,  Y02T10/22

Abstract: A significant reduction of the hydrocarbon emissions during the cold start of internal combustion engines is achieved if a hydrocarbon adsorber is introduced into the exhaust gas pipe upstream of the actual exhaust gas catalyst, the heat capacity of which hydrocarbon adsorber is made greater than the heat capacity of the downstream catalyst by suitable material selection and design of the adsorber.

公开(公告)号：BR0101208A

公开(公告)日：2001-10-30

申请号：BR0101208

申请日：2001-03-28

Applicant: DMC2 DEGUSSA METALS CATALYSTS

Inventor： MUSSMANN LOTHAR ,  LINDNER DIETER ,  VOTSMEIER MARTIN ,  LOX EGBERT ,  KREUZER HOMAS

IPC: F01N3/10 ,  B01D53/86 ,  B01D53/94 ,  B01J23/42 ,  B01J23/46 ,  B01J23/63 ,  B01J37/02

Abstract: A single layer high performance catalyst containing on an inert carrier body a catalytic coating comprising platinum, rhodium and various oxide materials. The catalyst contains a catalytic coating having at least one first support material selected from the group having a first active alumina, a ceria rich ceria/zirconia mixed oxide and a zirconia component, said at least one first support material being catalyzed with a first part of the total platinum amount of the catalyst, and a second support material catalyzed with the second part of the total platinum amount and with rhodium said second support material being a second active alumina.

公开(公告)号：AU732362B2

公开(公告)日：2001-04-26

申请号：AU6075298

申请日：1998-04-08

Applicant: DEGUSSA

Inventor： MUSSMANN LOTHAR ,  YPEREN RENEE VAN ,  LINDNER DIETER ,  KREUZER THOMAS ,  LOX EGBERT

IPC: B01D53/94 ,  B01J20/06 ,  B01J21/06 ,  B01J23/10 ,  B01J23/63 ,  B01J32/00 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  C01B13/02 ,  C01F17/00 ,  C04B35/46 ,  C04B35/48 ,  C04B35/50

Abstract: An oxygen-storing material containing cerium(Ce)-oxide, and a stabiliser comprising Pr-, La-, Y- or Nd-oxide, in highly dispersed form on the surface of a high surface carrier. The storage material has a specific surface area of ≥ 20 (preferably ≥ 30) m /g after calcining in air at 900 degrees C for 10 hours. Production of the material is also claimed by adding dissolved precursors of the stabiliser and Ce-oxide to a prepared aqueous dispersion of carrier whilst stirring, and precipitating the material by slowly raising the pH of the dispersion to 8-10 by adding a base to the carrier.