EP1092846A3 - Hydrodynamically optimized catalytic body - Google Patents

Hydrodynamically optimized catalytic body Download PDF

Info

Publication number
EP1092846A3
EP1092846A3 EP00121383A EP00121383A EP1092846A3 EP 1092846 A3 EP1092846 A3 EP 1092846A3 EP 00121383 A EP00121383 A EP 00121383A EP 00121383 A EP00121383 A EP 00121383A EP 1092846 A3 EP1092846 A3 EP 1092846A3
Authority
EP
European Patent Office
Prior art keywords
catalytic body
hydrodynamically optimized
optimized catalytic
inflow
outflow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00121383A
Other languages
German (de)
French (fr)
Other versions
EP1092846A2 (en
EP1092846B1 (en
Inventor
Michael Bender
Andreas Wölfert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BASF SE filed Critical BASF SE
Publication of EP1092846A2 publication Critical patent/EP1092846A2/en
Publication of EP1092846A3 publication Critical patent/EP1092846A3/en
Application granted granted Critical
Publication of EP1092846B1 publication Critical patent/EP1092846B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

The catalytic body has an inflow surface (3) and outflow surface (4). The inflow surface is formed as a sleeve surface (8) of a conical or frusto-conical projection (7) with a concave curvature at least in some sections. The curvature of the inflow surface can be smooth. The outflow surface can be planar or can be curved. The catalytic body can be a monolith. The catalytic body can be made from several superposed layers of a structured surface material
EP00121383A 1999-10-14 2000-10-12 Hydrodynamically optimized catalytic body Expired - Lifetime EP1092846B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19949568 1999-10-14
DE19949568A DE19949568A1 (en) 1999-10-14 1999-10-14 Hydrodynamically optimized catalytic molded body

Publications (3)

Publication Number Publication Date
EP1092846A2 EP1092846A2 (en) 2001-04-18
EP1092846A3 true EP1092846A3 (en) 2003-06-25
EP1092846B1 EP1092846B1 (en) 2005-04-06

Family

ID=7925652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121383A Expired - Lifetime EP1092846B1 (en) 1999-10-14 2000-10-12 Hydrodynamically optimized catalytic body

Country Status (4)

Country Link
EP (1) EP1092846B1 (en)
JP (1) JP2001162178A (en)
AT (1) ATE292745T1 (en)
DE (2) DE19949568A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10021166A1 (en) * 2000-04-29 2001-11-08 Univ Stuttgart Catalyst matrix used for purifying IC engine exhaust gases has a longitudinal axis running in the main flow direction of the exhaust gases, a bent inlet surface, and an outlet surface
US20020076365A1 (en) * 2000-12-14 2002-06-20 Detroit Diesel Corporation Emission control catalyst assembly for an engine of a motor vehicle
FR2876145A1 (en) * 2004-10-05 2006-04-07 Renault Sas Exhaust gas pollution control device for internal combustion engine of motor vehicle, has porous monolith on which gas, discharged by engine, arrives, and having inlet side equipped with protrusion presenting hemi-spherical dome shape
DE102005042057A1 (en) * 2005-09-05 2007-03-08 Robert Bosch Gmbh Filter element with improved soot distribution

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201881A1 (en) * 1972-01-15 1973-07-19 Volkswagenwerk Ag Porous block exhaust gas catalyst - tapered at its end(s) to improve gas flow profile through the block
DE2364425A1 (en) * 1973-12-22 1975-07-10 Boysen Friedrich Kg Catalyst chamber construction - for a monolithic catalyst used in after-burning of unburnt constituents in exhaust gases
US3910850A (en) * 1973-12-19 1975-10-07 Grace W R & Co Contoured monolithic substrate
EP0818613A1 (en) * 1996-07-08 1998-01-14 Corning Incorporated Exhaust gas purifying system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2428964A1 (en) 1974-06-15 1976-01-02 Bosch Gmbh Robert Reactor insert for exhaust gas detoxification - with conically tapering inlet end
US3964875A (en) 1974-12-09 1976-06-22 Corning Glass Works Swirl exhaust gas flow distribution for catalytic conversion
JPS62152014U (en) 1986-03-18 1987-09-26
JP2664118B2 (en) 1992-11-20 1997-10-15 日本碍子株式会社 Curved honeycomb structure
DE19749379A1 (en) 1997-11-07 1999-05-20 Emitec Emissionstechnologie Catalyst carrier body with improved heat radiation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2201881A1 (en) * 1972-01-15 1973-07-19 Volkswagenwerk Ag Porous block exhaust gas catalyst - tapered at its end(s) to improve gas flow profile through the block
US3910850A (en) * 1973-12-19 1975-10-07 Grace W R & Co Contoured monolithic substrate
DE2364425A1 (en) * 1973-12-22 1975-07-10 Boysen Friedrich Kg Catalyst chamber construction - for a monolithic catalyst used in after-burning of unburnt constituents in exhaust gases
EP0818613A1 (en) * 1996-07-08 1998-01-14 Corning Incorporated Exhaust gas purifying system

Also Published As

Publication number Publication date
EP1092846A2 (en) 2001-04-18
JP2001162178A (en) 2001-06-19
DE50009972D1 (en) 2005-05-12
DE19949568A1 (en) 2001-04-19
EP1092846B1 (en) 2005-04-06
ATE292745T1 (en) 2005-04-15

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