JPS4947243A - - Google Patents
Info
- Publication number
- JPS4947243A JPS4947243A JP7342769A JP4276973A JPS4947243A JP S4947243 A JPS4947243 A JP S4947243A JP 7342769 A JP7342769 A JP 7342769A JP 4276973 A JP4276973 A JP 4276973A JP S4947243 A JPS4947243 A JP S4947243A
- Authority
- JP
- Japan
- 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.)
- Pending
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
- B01D53/9459—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
-
- 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
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1023—Palladium
-
- 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
- B01D2255/1025—Rhodium
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1758272A GB1431377A (en) | 1972-04-17 | 1972-04-17 | Catalytic process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4947243A true JPS4947243A (en) | 1974-05-07 |
Family
ID=10097697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7342769A Pending JPS4947243A (en) | 1972-04-17 | 1973-04-17 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4947243A (en) |
| DE (1) | DE2319527A1 (en) |
| FR (1) | FR2181336A5 (en) |
| GB (1) | GB1431377A (en) |
| IT (1) | IT988627B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4952171A (en) * | 1972-06-14 | 1974-05-21 | ||
| JPS51101780A (en) * | 1975-03-06 | 1976-09-08 | Nissan Motor | |
| JPS5432167A (en) * | 1977-08-15 | 1979-03-09 | Osaka Sanso Kougiyou Kk | Gas purification |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4071600A (en) | 1976-12-06 | 1978-01-31 | General Motors Corporation | Process for improved 3-way emission control |
-
1972
- 1972-04-17 GB GB1758272A patent/GB1431377A/en not_active Expired
-
1973
- 1973-04-16 FR FR7313677A patent/FR2181336A5/fr not_active Expired
- 1973-04-16 IT IT2307973A patent/IT988627B/en active
- 1973-04-17 JP JP7342769A patent/JPS4947243A/ja active Pending
- 1973-04-17 DE DE19732319527 patent/DE2319527A1/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4952171A (en) * | 1972-06-14 | 1974-05-21 | ||
| JPS51101780A (en) * | 1975-03-06 | 1976-09-08 | Nissan Motor | |
| JPS5432167A (en) * | 1977-08-15 | 1979-03-09 | Osaka Sanso Kougiyou Kk | Gas purification |
Also Published As
| Publication number | Publication date |
|---|---|
| IT988627B (en) | 1975-04-30 |
| FR2181336A5 (en) | 1973-11-30 |
| GB1431377A (en) | 1976-04-07 |
| DE2319527A1 (en) | 1973-10-31 |