JPS5641300B2 - - Google Patents
Info
- Publication number
- JPS5641300B2 JPS5641300B2 JP9656473A JP9656473A JPS5641300B2 JP S5641300 B2 JPS5641300 B2 JP S5641300B2 JP 9656473 A JP9656473 A JP 9656473A JP 9656473 A JP9656473 A JP 9656473A JP S5641300 B2 JPS5641300 B2 JP S5641300B2
- 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.)
- Expired
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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
-
- 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
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
-
- 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
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
- B01J29/082—X-type faujasite
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/02—Preparation of nitrogen
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28481072A | 1972-08-30 | 1972-08-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4959075A JPS4959075A (en) | 1974-06-07 |
| JPS5641300B2 true JPS5641300B2 (en) | 1981-09-28 |
Family
ID=23091610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9656473A Expired JPS5641300B2 (en) | 1972-08-30 | 1973-08-28 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5641300B2 (en) |
| DE (1) | DE2341744C2 (en) |
| FR (1) | FR2197815B1 (en) |
| GB (1) | GB1393053A (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS516169A (en) * | 1974-07-05 | 1976-01-19 | Hitachi Ltd | |
| JPS539598B2 (en) * | 1974-09-10 | 1978-04-06 | ||
| US4104361A (en) * | 1975-03-28 | 1978-08-01 | Exxon Research & Engineering Co. | Catalyst for reduction of nitrogen oxides and process for preparing the same |
| JPS5242489A (en) * | 1976-05-20 | 1977-04-02 | Toa Nenryo Kogyo Kk | Nox-reduction catalyst and method of producing thereof |
| GB1586530A (en) * | 1977-05-31 | 1981-03-18 | Caterpillar Tractor Co | Two-stage catalysts of engine exhaust |
| GB2039863B (en) * | 1979-01-12 | 1982-11-24 | Norton Co | Catalytic reduction of oxides of nitrogen by ammonia in presence of clinoptilolite |
| DE3244370A1 (en) * | 1982-12-01 | 1984-06-07 | Basf Ag, 6700 Ludwigshafen | METHOD FOR THE REMOVAL OF DISTROXIDE OXIDE FROM HYDROGEN, NITROGEN MONOXIDE AND GASES CONTAINING DISTICKOXIDE |
| DE3328653A1 (en) * | 1983-08-09 | 1985-02-28 | Steuler Industriewerke GmbH, 5410 Höhr-Grenzhausen | DEVICE FOR CARRYING OUT A METHOD FOR SEPARATING STICKOXYDES FROM EXHAUST GASES |
| GB2162830B (en) * | 1984-08-10 | 1988-08-10 | Babcock Hitachi Kk | Ammonia reduction-denitration process and apparatus therefor |
| EP0205813A3 (en) * | 1985-04-22 | 1988-09-21 | Klaus Rennebeck | Catalyst, especially for cleaning exhaust gas, process and apparatus for its manufacture |
| DE3674692D1 (en) * | 1985-07-29 | 1990-11-08 | Eka Nobel Ab | CATALYST AND METHOD FOR REMOVING NITROGEN OXYDES FROM EXHAUST GASES. |
| DE3704030A1 (en) * | 1987-02-10 | 1988-08-18 | Ruhrgas Ag | Process for separating off nitrogen oxides from exhaust gases by selective catalytic reduction |
| FR2613253B1 (en) * | 1987-04-03 | 1989-06-09 | Azote & Prod Chim | CATALYTIC COMPOSITION FOR THE SELECTIVE REDUCTION OF NITROGEN OXIDES CONTAINED IN OXYGENOUS GAS EFFLUENTS AND METHOD FOR THE PURIFICATION OF SUCH EFFLUENTS |
| FR2622474B2 (en) * | 1987-04-03 | 1990-01-26 | Azote & Prod Chim | CATALYTIC COMPOSITION FOR THE SELECTIVE REDUCTION OF NITROGEN OXIDES CONTAINED IN OXYGENOUS GAS EFFLUENTS AND METHOD FOR THE PURIFICATION OF SUCH EFFLUENTS |
| FR2625919B1 (en) * | 1988-01-19 | 1994-02-11 | Institut Francais Petrole | PROCESS AND CATALYST FOR SELECTIVE REDUCTION OF NITROGEN OXIDES |
| JPH01299642A (en) * | 1988-05-30 | 1989-12-04 | Hitachi Zosen Corp | Adsorbent for nitrogen oxide having low concentration |
| DE4300988C1 (en) * | 1993-01-15 | 1994-04-07 | Ppv Verwaltungs Ag Zuerich | Oxygen-enriched air generator contg. zeolite bed giving pure prod. - with chamber in outlet system opened during adsorption and sealed during regeneration phase, e.g. for use in vehicle or aircraft |
| KR20110010711A (en) * | 2008-05-07 | 2011-02-07 | 우미코레 아게 운트 코 카게 | Method for decreasing nitrogen oxides in hydrocarbon-containing exhaust gases using an scr catalyst based on a molecular sieve |
| EP3473825A1 (en) | 2008-06-27 | 2019-04-24 | Umicore Ag & Co. Kg | Method and device for cleaning diesel exhaust gases |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3015369A (en) * | 1960-05-23 | 1962-01-02 | Socony Mobil Oil Co Inc | Removal of nitrogen oxides from combustion gases |
-
1973
- 1973-07-23 GB GB3497073A patent/GB1393053A/en not_active Expired
- 1973-08-17 DE DE19732341744 patent/DE2341744C2/en not_active Expired
- 1973-08-28 JP JP9656473A patent/JPS5641300B2/ja not_active Expired
- 1973-08-29 FR FR7331280A patent/FR2197815B1/fr not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3015369A (en) * | 1960-05-23 | 1962-01-02 | Socony Mobil Oil Co Inc | Removal of nitrogen oxides from combustion gases |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4959075A (en) | 1974-06-07 |
| FR2197815A1 (en) | 1974-03-29 |
| GB1393053A (en) | 1975-05-07 |
| FR2197815B1 (en) | 1978-01-27 |
| DE2341744A1 (en) | 1974-03-07 |
| DE2341744C2 (en) | 1983-07-14 |