BR9300548A - Dispersao de revestimento para catalisadores de gas de descarga - Google Patents

Dispersao de revestimento para catalisadores de gas de descarga

Info

Publication number
BR9300548A
BR9300548A BR9300548A BR9300548A BR9300548A BR 9300548 A BR9300548 A BR 9300548A BR 9300548 A BR9300548 A BR 9300548A BR 9300548 A BR9300548 A BR 9300548A BR 9300548 A BR9300548 A BR 9300548A
Authority
BR
Brazil
Prior art keywords
discharge gas
coating dispersion
gas catalyst
catalyst
dispersion
Prior art date
Application number
BR9300548A
Other languages
English (en)
Inventor
Rainer Dr Domeste
Bernd Dr Engler
Edgar Dr Koberstein
Original Assignee
Degussa
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
Priority claimed from DE4204421A external-priority patent/DE4204421C2/de
Application filed by Degussa filed Critical Degussa
Publication of BR9300548A publication Critical patent/BR9300548A/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/0215—Coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/038—Precipitation; Co-precipitation to form slurries or suspensions, e.g. a washcoat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/615—100-500 m2/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/633—Pore volume less than 0.5 ml/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/635—0.5-1.0 ml/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/63—Pore volume
    • B01J35/638—Pore volume more than 1.0 ml/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64—Pore diameter
    • B01J35/647—2-50 nm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64—Pore diameter
    • B01J35/651—50-500 nm
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
BR9300548A 1992-02-14 1993-02-11 Dispersao de revestimento para catalisadores de gas de descarga BR9300548A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4204421A DE4204421C2 (de) 1992-02-14 1992-02-14 Katalysator für die Reinigung der Abgase von Brennkraftmaschinen

Publications (1)

Publication Number Publication Date
BR9300548A true BR9300548A (pt) 1993-08-17

Family

ID=6451709

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9300548A BR9300548A (pt) 1992-02-14 1993-02-11 Dispersao de revestimento para catalisadores de gas de descarga

Country Status (19)

Country Link
US (1) US5496788A (pt)
EP (1) EP0556554B1 (pt)
JP (1) JP3238511B2 (pt)
KR (1) KR100255093B1 (pt)
CN (1) CN1041805C (pt)
AU (1) AU653095B2 (pt)
BR (1) BR9300548A (pt)
CA (1) CA2089397C (pt)
CZ (1) CZ380092A3 (pt)
DE (2) DE4244712C2 (pt)
ES (1) ES2108769T3 (pt)
HU (1) HU215707B (pt)
MX (1) MX9300780A (pt)
PL (1) PL178211B1 (pt)
SK (1) SK380092A3 (pt)
TR (1) TR27626A (pt)
TW (1) TW296350B (pt)
UA (1) UA34421C2 (pt)
ZA (1) ZA931006B (pt)

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US6063633A (en) * 1996-02-28 2000-05-16 The University Of Houston Catalyst testing process and apparatus
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Also Published As

Publication number Publication date
JP3238511B2 (ja) 2001-12-17
DE4244712A1 (de) 1994-04-14
KR100255093B1 (ko) 2000-05-01
JPH067683A (ja) 1994-01-18
EP0556554A3 (en) 1993-10-20
PL297715A1 (en) 1993-11-15
CA2089397A1 (en) 1993-08-15
AU3302593A (en) 1993-08-19
AU653095B2 (en) 1994-09-15
HU215707B (hu) 1999-02-01
TR27626A (tr) 1995-06-14
HUT63348A (en) 1993-08-30
DE4244712C2 (de) 1996-09-05
ES2108769T3 (es) 1998-01-01
MX9300780A (es) 1993-12-01
HU9300382D0 (en) 1993-05-28
PL178211B1 (pl) 2000-03-31
CN1075271A (zh) 1993-08-18
CA2089397C (en) 1999-12-28
CN1041805C (zh) 1999-01-27
TW296350B (pt) 1997-01-21
UA34421C2 (uk) 2001-03-15
EP0556554B1 (de) 1997-09-17
CZ380092A3 (en) 1993-12-15
EP0556554A2 (de) 1993-08-25
SK380092A3 (en) 1994-08-10
ZA931006B (en) 1993-09-13
DE59307358D1 (de) 1997-10-23
KR930017616A (ko) 1993-09-20
US5496788A (en) 1996-03-05

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