GB1398893A - Method of treating exhaust gases of internal combustion engines - Google Patents
Method of treating exhaust gases of internal combustion enginesInfo
- Publication number
- GB1398893A GB1398893A GB2708772A GB2708772A GB1398893A GB 1398893 A GB1398893 A GB 1398893A GB 2708772 A GB2708772 A GB 2708772A GB 2708772 A GB2708772 A GB 2708772A GB 1398893 A GB1398893 A GB 1398893A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alumina
- core
- rare earth
- earth metal
- oxides
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 7
- 239000007789 gas Substances 0.000 title abstract 4
- 238000002485 combustion reaction Methods 0.000 title 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 16
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 7
- 229910052802 copper Inorganic materials 0.000 abstract 7
- 239000010949 copper Substances 0.000 abstract 7
- 229910052761 rare earth metal Inorganic materials 0.000 abstract 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 abstract 6
- 230000003197 catalytic effect Effects 0.000 abstract 6
- 239000002002 slurry Substances 0.000 abstract 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 5
- 229910052804 chromium Inorganic materials 0.000 abstract 5
- 239000011651 chromium Substances 0.000 abstract 5
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 abstract 4
- 229910052863 mullite Inorganic materials 0.000 abstract 4
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 4
- -1 rare earth metal salt Chemical class 0.000 abstract 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 abstract 3
- 229910052748 manganese Inorganic materials 0.000 abstract 3
- 239000011572 manganese Substances 0.000 abstract 3
- 229910052763 palladium Inorganic materials 0.000 abstract 3
- 229910001404 rare earth metal oxide Inorganic materials 0.000 abstract 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract 2
- 229910010293 ceramic material Inorganic materials 0.000 abstract 2
- 229910052878 cordierite Inorganic materials 0.000 abstract 2
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 abstract 2
- 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 abstract 2
- 230000001473 noxious effect Effects 0.000 abstract 2
- 229910052697 platinum Inorganic materials 0.000 abstract 2
- 150000002910 rare earth metals Chemical class 0.000 abstract 2
- 229910052596 spinel Inorganic materials 0.000 abstract 2
- 239000011029 spinel Substances 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 150000004684 trihydrates Chemical class 0.000 abstract 2
- 229910052684 Cerium Inorganic materials 0.000 abstract 1
- 229910052779 Neodymium Inorganic materials 0.000 abstract 1
- 229910052777 Praseodymium Inorganic materials 0.000 abstract 1
- 229910052772 Samarium Inorganic materials 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 150000002739 metals Chemical class 0.000 abstract 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 abstract 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 abstract 1
- 229910052706 scandium Inorganic materials 0.000 abstract 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052727 yttrium Inorganic materials 0.000 abstract 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
-
- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- 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
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/34—Mechanical properties
- B01J35/38—Abrasion or attrition resistance
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
1398893 Purifying internal combustion engine exhaust gases W R GRACE & CO 9 June 1972 [11 June 1971] 27087/72 Heading F1B [Also in Divisions B1 and B2] Noxious components of the exhaust gas of an internal combustion engine are converted into less harmful entities by a method wherein the exhaust gas is contacted with a catalytic body comprising a monolith upon which is supported a catalytic component effective to catalyse the conversion of the noxious components, the monolith comprising a core of ceramic material capable of withstanding a temperature of 1800F coated with a composition comprising transitional alumina and at least one rare earth metal oxide, the composition containing from 0.1 to 10 parts by weight of rare earth metal oxide per 100 parts by weight of transitional alumina. The ceramic material from which the core is made may be alpha-alumina, magnesiaalumina spinel, mullite, zircon-mullite or cordierite; the core may be made by the procedure disclosed in Specification No. 1349400. The transitional alumina may be gamma-alumina; reference also is made to other transitional forms, namely chi, kappa, eta, theta and delta. The composition may contain oxide of rare earth metal or metals selected from scandium, yttrium and elements of atomic number 57 to 71 inclusive. The monolith may be prepared by a procedure wherein the core is coated with an aqueous slurry containing transitional alumina, dried to remove the water of the slurry and, optionally, calcined at a temperature below that temperature at which the transitional alumina is converted to alpha-alumina, rare earth metal salt(s) decomposable on heating to the oxide(s) either being present in the slurry (for example by the use of pre-prepared rare earth metal salt(s)-impregnated transitional alumina) or being composited with the dried coated core by impregnation from solution followed by removal of solvent of the solution from the impregnated coated core, the rare earth metal salt(s)-containing coated core being heated, at some stage during the procedure, at a temperature at which the salt(s) decompose to the oxide(s); reference also is made to the preparation of the monolith by a procedure wherein the core is immersed in a slurry containing alumina trihydrate, carboxymethyl cellulose and rare earth metal salt, shaken and sprayed with air to remove excess slurry, dried and calcined to convert the alumina trihydrate to gamma-alumina, the gamma-alumina and rare earth metal oxide constituting 10-12 weight per cent of the monolith. The catalytic component, which may constitute from 0.1 to 70 weight per cent of the catalytic body, may be a single substance or two or more substances; specified catalytic components are (i) palladium plus oxides of copper and chromium, (ii) palladium plus oxides of copper and manganese, (iii) palladium plus oxides of copper, chromium and manganese, (iv) oxides of copper, chromium and manganese in combination, (v) oxides of copper, manganese, iron and cobalt in combination and (vi) platinum alone. Exemplified catalytic bodies comprise oxides of copper, chromium and manganese in combination or platinum alone supported on a cylindrical honeycombed porous ceramic alpha-alumina core (prepared by the procedure disclosed in Specification No. 1349400) and oxides of copper, chromium and manganese in combination supported on a core of spinel or mullite or zircon-mullite or cordierite, the core in each case being coated with a composition comprising gamma-alumina and oxides of lenthanum, cerium, praseodymium, neodymium and samarium derived from a slurry containing rare earth metal-stabilized gamma-alumina and carboxymethyl cellulose.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15238871A | 1971-06-11 | 1971-06-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1398893A true GB1398893A (en) | 1975-06-25 |
Family
ID=22542710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2708772A Expired GB1398893A (en) | 1971-06-11 | 1972-06-09 | Method of treating exhaust gases of internal combustion engines |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2228452A1 (en) |
| FR (1) | FR2140575B1 (en) |
| GB (1) | GB1398893A (en) |
| IT (1) | IT956424B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3208931A1 (en) * | 1981-03-13 | 1982-11-11 | W.R. Grace & Co., 10036 New York, N.Y. | CATALYST COMPOSITION WITH SULFUR OXIDE GETTER FOR CATALYTIC CRACKING OF HYDROCARBONS |
| WO1995017249A1 (en) * | 1993-12-20 | 1995-06-29 | Kemira Oy | Catalyst for the purification of gasoline engine exhaust gases and method for the preparation of the same |
| US6764672B2 (en) | 2001-04-03 | 2004-07-20 | Alcoa Inc. | Thermally stable alumina particulates |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206087A (en) * | 1977-01-06 | 1980-06-03 | Engelhard Minerals & Chemicals Corporation | Catalyst for reducing pollutants in waste gas streams and process for preparing the catalyst |
| FR2721837B1 (en) | 1994-07-01 | 1996-08-30 | Inst Francais Du Petrole | HIGH TEMPERATURE RESISTANT OXIDATION CATALYST, PREPARATION METHOD THEREOF, AND COMBUSTION METHOD USING SUCH CATALYST |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1350947A (en) * | 1963-01-25 | 1964-01-31 | Socony Mobil Oil Co | New hydrocarbon conversion catalyst |
| US3483138A (en) * | 1966-08-31 | 1969-12-09 | Ethyl Corp | Neodymium oxide catalyst compositions |
-
1972
- 1972-06-08 FR FR7220666A patent/FR2140575B1/fr not_active Expired
- 1972-06-09 GB GB2708772A patent/GB1398893A/en not_active Expired
- 1972-06-09 IT IT25498/72A patent/IT956424B/en active
- 1972-06-10 DE DE2228452A patent/DE2228452A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3208931A1 (en) * | 1981-03-13 | 1982-11-11 | W.R. Grace & Co., 10036 New York, N.Y. | CATALYST COMPOSITION WITH SULFUR OXIDE GETTER FOR CATALYTIC CRACKING OF HYDROCARBONS |
| GB2140791A (en) * | 1981-03-13 | 1984-12-05 | Grace W R & Co | Sulfur oxide gettering agent composition |
| WO1995017249A1 (en) * | 1993-12-20 | 1995-06-29 | Kemira Oy | Catalyst for the purification of gasoline engine exhaust gases and method for the preparation of the same |
| US6764672B2 (en) | 2001-04-03 | 2004-07-20 | Alcoa Inc. | Thermally stable alumina particulates |
Also Published As
| Publication number | Publication date |
|---|---|
| IT956424B (en) | 1973-10-10 |
| FR2140575A1 (en) | 1973-01-19 |
| FR2140575B1 (en) | 1977-12-23 |
| DE2228452A1 (en) | 1973-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |