FR2146293A1 - Exhaust gas purification catalysts - for oxidation and/or reduction processes, on crystalline synthetic mullite carrier - Google Patents

Exhaust gas purification catalysts - for oxidation and/or reduction processes, on crystalline synthetic mullite carrier

Info

Publication number: FR2146293A1
Authority: FR; France
Prior art keywords: oxidation; exhaust gas; gas purification; reduction processes; purification catalysts
Prior art date: 1971-07-20
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

FR7225603A

Other languages

English (en)

French (fr)

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.)

GCP Products UK Ltd

WR Grace and Co Conn

Original Assignee

WR Grace Ltd

WR Grace and Co Conn

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.)

1971-07-20

Filing date

1972-07-13

Publication date

1973-03-02

1972-07-13 Application filed by WR Grace Ltd, WR Grace and Co Conn filed Critical WR Grace Ltd

1973-03-02 Publication of FR2146293A1 publication Critical patent/FR2146293A1/fr

Status Withdrawn legal-status Critical Current

Links

239000003054 catalyst Substances 0.000 title abstract 3
KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 title abstract 3
229910052863 mullite Inorganic materials 0.000 title abstract 3
230000003647 oxidation Effects 0.000 title abstract 2
238000007254 oxidation reaction Methods 0.000 title abstract 2
238000000746 purification Methods 0.000 title 1
238000011946 reduction process Methods 0.000 title 1
MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
239000011248 coating agent Substances 0.000 abstract 1
238000000576 coating method Methods 0.000 abstract 1
229910052593 corundum Inorganic materials 0.000 abstract 1
239000007789 gas Substances 0.000 abstract 1
229930195733 hydrocarbon Natural products 0.000 abstract 1
150000002430 hydrocarbons Chemical class 0.000 abstract 1
239000012535 impurity Substances 0.000 abstract 1
229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 abstract 1
229910052753 mercury Inorganic materials 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
239000011707 mineral Substances 0.000 abstract 1
239000011148 porous material Substances 0.000 abstract 1
231100000331 toxic Toxicity 0.000 abstract 1
230000002588 toxic effect Effects 0.000 abstract 1
229910001845 yogo sapphire Inorganic materials 0.000 abstract 1

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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/12—Silica and alumina
- 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)
Health & Medical Sciences (AREA)
Organic Chemistry (AREA)
Combustion & Propulsion (AREA)
Materials Engineering (AREA)
Biomedical Technology (AREA)
Environmental & Geological Engineering (AREA)
Analytical Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Oil, Petroleum & Natural Gas (AREA)
Catalysts (AREA)

FR7225603A 1971-07-20 1972-07-13 Exhaust gas purification catalysts - for oxidation and/or reduction processes, on crystalline synthetic mullite carrier Withdrawn FR2146293A1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US16446771A	1971-07-20	1971-07-20

Publications (1)

Publication Number	Publication Date
FR2146293A1 true FR2146293A1 (en)	1973-03-02

Family

ID=22594622

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7225603A Withdrawn FR2146293A1 (en)	1971-07-20	1972-07-13	Exhaust gas purification catalysts - for oxidation and/or reduction processes, on crystalline synthetic mullite carrier

Country Status (3)

Country	Link
DE (1)	DE2230164A1 (it)
FR (1)	FR2146293A1 (it)
IT (1)	IT956979B (it)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2321940A1 (fr) *	1975-08-27	1977-03-25	Engelhard Min & Chem	Catalyseurs polyfonctionnels et procede d'utilisation

1972
- 1972-06-21 DE DE2230164A patent/DE2230164A1/de active Pending
- 1972-06-28 IT IT26376/72A patent/IT956979B/it active
- 1972-07-13 FR FR7225603A patent/FR2146293A1/fr not_active Withdrawn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2321940A1 (fr) *	1975-08-27	1977-03-25	Engelhard Min & Chem	Catalyseurs polyfonctionnels et procede d'utilisation

Also Published As

Publication number	Publication date
DE2230164A1 (de)	1973-01-25
IT956979B (it)	1973-10-10

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SU112945A1 (ru)	1957-11-30	Способ каталитической очистки смеси инертных газов с кислородом от углеводородов

Legal Events

Date	Code	Title	Description
1975-09-12	ST	Notification of lapse