IL40262A - A catalyst,its method of production and the utilisation of same for the purification of exhaust gases from internal combustion engines - Google Patents
A catalyst,its method of production and the utilisation of same for the purification of exhaust gases from internal combustion enginesInfo
- Publication number
- IL40262A IL40262A IL40262A IL4026272A IL40262A IL 40262 A IL40262 A IL 40262A IL 40262 A IL40262 A IL 40262A IL 4026272 A IL4026272 A IL 4026272A IL 40262 A IL40262 A IL 40262A
- Authority
- IL
- Israel
- Prior art keywords
- catalyst composition
- carrier
- exhaust gases
- aluminium
- catalyst
- Prior art date
Links
Classifications
-
- 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
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
-
- 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
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
-
- 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
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
-
- 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
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
- B01D53/9463—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick
- B01D53/9472—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick in different zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/102—Oxygen
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20746—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20753—Nickel
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Claims (19)
1. A eatalyst compositio which comprises a carrier and active components, the active components being elemental platinum together with nickel and/or cobalt, the said composition having an alkali metal and sulphur conten each less than 0*05 percent by weight* the of said catalyst been prepared by deposition/the platinum onto the carrier after the deposition of the nickel and/or cobalt thereon.
2. A catalyst composition as claimed in Claim 1, wherein the platinum content is in the range 0,01 to 1 percent by weight and the nickel content and/or cobal content is in the range of 0,1 to 10 percent by weight.
3. A eatalyst composition as claiaed in Claim 1 or Claim 2, wherei the carrier is aluminium oxide, silicon dioxide, an aluminium and/or magnesium silicate, magnesium oxide, titanium dioxide and/or zirconium disoxide.
4. A catalyst composition as claimed in Claim 3, wherein u the carrier is a high purity aliminium oxide obtained by hydrolysis of an organic aluminium compound and subsequent calcination.
5. A catalyst composition as claimed in Claim 4 wherein the aluminium *xide is obtained by the hydrolysis of an aluminium alcoholate.
6. A catalyst composition as claimed in any of Claims 1 to 5* wherein the carrier consists of cylindrical strands or pellets or of monolithic elements penetrated by cavities. 40262/2
7. A catalyst composition as claimed in Claim 6, wherein the average diameters of the strands and pellets lie between 1.0 and 5 mm.
8. A catalyst composition as claimed in Claim 6, wherein the crushing strength of the cylindrical strands or pelletst measured at the cylinder walls is at least 3 kp per mm of cylinder height,
9. A catalyst composition as claimed in Claim 3 wherein the crushing strength of the cylindrical strands measured at the cylinder wall is at least 5 kp per mm of cylinder height,
10.A catalyst composition as claimed in Claim 6, wherein the cavities of the monolithic elements have an average diameter of about 0.5 to 5 mm.
11.A method for the production of a catalyst composition as claimed in any of claims 1 to 10, which method of comprises first deposition/nickel and/or cobalt onto a refractory carrier and subsequently depositing platinum onto the carrier» the starting materials for the carrier and the active components being so chosen that the alkali metal and sulphur content in the inished catalyst each amount to less than 0.05 percent by weight.
12.A method a claimed in Claim 11, wherei the carrier is first impregnated with a nickel and or cobalt salt solution, then impregnated with a platinum salt solution and thereafer is droned and calcined.
13.A method as claimed in Claim 11 or Claim 12, wherein an aluminium alcoholate is hydroljsed with water to form 40262/2 aluininium hydroxide, the aluminium hydroxide obtained is dried, and moulded to form moulded bodies, the moulded bodies ar converted into aluminium oxide by calcining, are impregnated first with aqueous niekel and/or cobalt sal solution, then imprgenated with a platinum salt solution and therea er are calcinlSed at a temperature in the range 350 t© 700°C,
14. 4.A method or removing carbon monoxide, nitrogen oxides and/or hydrocarbons contained in the exhaust gases from internal combustion engines which method comprises passing a stream of the exhaust gases over a catalyst composition as claimed in any on of claims 1 to 10· as
15. 5.A method/claimed in Claim 14, wherein the exhaust gases are treated in a reducing atmosphere without the addition of air to remove the nitrogen oxide**
16.A method as claimed in Claim 14» wherein the exhaust gases are treated in a& oxidising atmospher with the addition of air to remove carbon monoxide*
17. · method as claimed in Claim 14, wherein the catalys is provided in a two-stage reactor system such that the exhaust gases are treated in the first stage of the reaetor in a reducing atmosphere without the addition of air to remove the nitrogen oxides and subsequently treated in the s#p$nd stage of th reactor in an oxidising atmosphere with the addition of ai to remove carbon monoxide.
18. catalyst composition as claimed in Claim 1 substantial- ily as hereinbefore described with reference to any one of the Examples* 40262/2 A method of preparing a catalyst composition as claimed in Claim 11 substantially as hereinbefore described in any one of Examples 1 to 5· A method of purifying exhaust gases substantially as hereinbefore described in Example 6 or Example 7. A catalyst composition whenever prepared by a method as claimed in any one of Claims 11 to 13 or Claim
19. Fo the Applicants Dr. Yitzhak Hess
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19712143789 DE2143789C3 (en) | 1971-09-01 | Process for the production of catalytic converters and the use thereof for cleaning exhaust gases from internal combustion engines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL40262A0 IL40262A0 (en) | 1972-10-29 |
| IL40262A true IL40262A (en) | 1976-01-30 |
Family
ID=5818371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL40262A IL40262A (en) | 1971-09-01 | 1972-08-30 | A catalyst,its method of production and the utilisation of same for the purification of exhaust gases from internal combustion engines |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS4834792A (en) |
| AT (1) | AT322515B (en) |
| BE (1) | BE788126A (en) |
| BR (1) | BR7206055D0 (en) |
| CA (1) | CA994318A (en) |
| CH (1) | CH571890A5 (en) |
| CS (1) | CS157607B2 (en) |
| DK (1) | DK142266C (en) |
| FR (1) | FR2150782B1 (en) |
| GB (1) | GB1368661A (en) |
| IL (1) | IL40262A (en) |
| IT (1) | IT962112B (en) |
| NL (1) | NL7211789A (en) |
| PL (1) | PL79501B1 (en) |
| RO (1) | RO62454A (en) |
| SE (1) | SE381576B (en) |
| SU (1) | SU460606A3 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343316B2 (en) * | 1973-07-13 | 1978-11-18 | ||
| JPS542912B2 (en) * | 1973-09-10 | 1979-02-15 | ||
| GB2024646B (en) * | 1978-07-10 | 1983-05-05 | Johnson Matthey Co Ltd | Catalytic oxidation of smoke in exhaust gases |
| JPS6135853A (en) * | 1984-07-27 | 1986-02-20 | Nikki Universal Co Ltd | Carbon monoxide removing catalyst |
| US7150861B2 (en) | 2001-09-28 | 2006-12-19 | Nippon Shokubai Co., Ltd. | Catalyst for purification of exhaust gases and process for purification of exhaust gases |
| DE102018128152A1 (en) * | 2018-11-12 | 2020-05-14 | Man Energy Solutions Se | Process for the aftertreatment of the exhaust gas of an internal combustion engine and internal combustion engine |
-
1972
- 1972-05-23 JP JP47051152A patent/JPS4834792A/ja active Pending
- 1972-08-10 GB GB3740972A patent/GB1368661A/en not_active Expired
- 1972-08-11 DK DK396772A patent/DK142266C/en not_active IP Right Cessation
- 1972-08-14 IT IT52189/72A patent/IT962112B/en active
- 1972-08-16 FR FR7229273A patent/FR2150782B1/fr not_active Expired
- 1972-08-29 BE BE788126A patent/BE788126A/en not_active IP Right Cessation
- 1972-08-29 CH CH1271572A patent/CH571890A5/xx not_active IP Right Cessation
- 1972-08-30 CS CS596172A patent/CS157607B2/cs unknown
- 1972-08-30 SE SE7211207A patent/SE381576B/en unknown
- 1972-08-30 NL NL7211789A patent/NL7211789A/xx not_active Application Discontinuation
- 1972-08-30 IL IL40262A patent/IL40262A/en unknown
- 1972-08-31 CA CA150,653A patent/CA994318A/en not_active Expired
- 1972-09-01 BR BR006055/72A patent/BR7206055D0/en unknown
- 1972-09-01 AT AT752272A patent/AT322515B/en not_active IP Right Cessation
- 1972-09-01 RO RO7200072101A patent/RO62454A/en unknown
- 1972-09-01 PL PL1972157544A patent/PL79501B1/pl unknown
- 1972-09-01 SU SU1828573A patent/SU460606A3/en active
Also Published As
| Publication number | Publication date |
|---|---|
| BE788126A (en) | 1972-12-18 |
| SE381576B (en) | 1975-12-15 |
| NL7211789A (en) | 1973-03-05 |
| DK142266C (en) | 1981-03-02 |
| DK142266B (en) | 1980-10-06 |
| CA994318A (en) | 1976-08-03 |
| CH571890A5 (en) | 1976-01-30 |
| PL79501B1 (en) | 1975-06-30 |
| DE2143789B2 (en) | 1976-04-01 |
| JPS4834792A (en) | 1973-05-22 |
| RO62454A (en) | 1978-01-15 |
| DE2143789A1 (en) | 1973-03-22 |
| GB1368661A (en) | 1974-10-02 |
| CS157607B2 (en) | 1974-09-16 |
| AT322515B (en) | 1975-05-26 |
| IL40262A0 (en) | 1972-10-29 |
| SU460606A3 (en) | 1975-02-15 |
| BR7206055D0 (en) | 1973-08-30 |
| FR2150782A1 (en) | 1973-04-13 |
| FR2150782B1 (en) | 1980-03-14 |
| IT962112B (en) | 1973-12-20 |
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