FR2430260A1 - DENITRATION CATALYSTS COMPRISING A POROUS COATING AND METHOD FOR PRODUCING THE SAME - Google Patents
DENITRATION CATALYSTS COMPRISING A POROUS COATING AND METHOD FOR PRODUCING THE SAMEInfo
- Publication number
- FR2430260A1 FR2430260A1 FR7916608A FR7916608A FR2430260A1 FR 2430260 A1 FR2430260 A1 FR 2430260A1 FR 7916608 A FR7916608 A FR 7916608A FR 7916608 A FR7916608 A FR 7916608A FR 2430260 A1 FR2430260 A1 FR 2430260A1
- Authority
- FR
- France
- Prior art keywords
- producing
- support
- coating
- porous coating
- porous
- 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.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title abstract 6
- 239000011248 coating agent Substances 0.000 title abstract 5
- 238000000576 coating method Methods 0.000 title abstract 5
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- 238000001035 drying Methods 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 238000007598 dipping method Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0215—Coating
- B01J37/0225—Coating of metal substrates
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
a. Catalyseurs de dénitration comportant un revêtement poreux et procédé pour les produire. b. On produit un catalyseur de dénitration comportant un revêtement poreux par immersion d'une base de catalyseur en métal poreux dans un bain de revêtement contenant de la silice, séchage de la base de catalyseur pour former un support comportant un revêtement de silice poreux, immersion du support dans une solution contenant un composant actif et séchage du support obtenu, pour fixer le composant actif sur le support. c. Purification des gaz d'échappement.at. Denitration catalysts having a porous coating and a method for producing them. b. A denitration catalyst having a porous coating is produced by immersing a porous metal catalyst base in a coating bath containing silica, drying the catalyst base to form a support having a porous silica coating, dipping the catalyst base. support in a solution containing an active component and drying of the resulting support, to fix the active component on the support. vs. Purification of exhaust gases.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53082564A JPS5926341B2 (en) | 1978-07-06 | 1978-07-06 | Denitration catalyst with porous film |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2430260A1 true FR2430260A1 (en) | 1980-02-01 |
FR2430260B1 FR2430260B1 (en) | 1983-07-22 |
Family
ID=13777977
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7916608A Granted FR2430260A1 (en) | 1978-07-06 | 1979-06-27 | DENITRATION CATALYSTS COMPRISING A POROUS COATING AND METHOD FOR PRODUCING THE SAME |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS5926341B2 (en) |
BE (1) | BE877182A (en) |
CA (1) | CA1131197A (en) |
DE (1) | DE2926894C2 (en) |
FR (1) | FR2430260A1 (en) |
GB (1) | GB2024640B (en) |
IT (1) | IT1119768B (en) |
NL (1) | NL179552C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60106535A (en) * | 1983-11-16 | 1985-06-12 | Mitsubishi Heavy Ind Ltd | Catalyst for treating waste gas |
EP0211443B1 (en) * | 1985-08-19 | 1989-08-09 | Siemens Aktiengesellschaft | A process for preparing a catalyst for the selective reduction of nitrogen oxides from exhaust gases |
JPS62237947A (en) * | 1986-04-09 | 1987-10-17 | Toshiaki Kabe | Catalyst body |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3518206A (en) * | 1968-05-17 | 1970-06-30 | Du Pont | Supported catalysts composed of substrate coated with colloidal silica and catalyst |
FR2215266A1 (en) * | 1973-01-27 | 1974-08-23 | Kali Chemie Ag | |
FR2257336A1 (en) * | 1973-10-24 | 1975-08-08 | Johnson Matthey Co Ltd | Noble metal catalyst on expanded iron alloy - with coating contg. oxygen, for oxidn., redn. and exhaust gas purificn. |
FR2258218A1 (en) * | 1974-01-19 | 1975-08-18 | Kali Chemie Ag | |
DE2422851A1 (en) * | 1974-05-06 | 1975-11-20 | Atomic Energy Authority Uk | CATALYST SYSTEM |
US4040981A (en) * | 1975-06-30 | 1977-08-09 | Hitachi Shipbuilding & Engineering Co., Ltd. | Process for producing denitrating catalysts |
FR2369870A1 (en) * | 1976-11-09 | 1978-06-02 | Hitachi Shipbuilding Eng Co | PROCESS FOR PREPARING VERY ACTIVE DENITRIFICATION CATALYSTS |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1490977A (en) * | 1973-12-10 | 1977-11-09 | Atomic Energy Authority Uk | Catalysts |
JPS5812057B2 (en) * | 1974-07-31 | 1983-03-05 | 武田薬品工業株式会社 | Shiyokubaisosabutsu |
-
1978
- 1978-07-06 JP JP53082564A patent/JPS5926341B2/en not_active Expired
-
1979
- 1979-06-01 GB GB7919186A patent/GB2024640B/en not_active Expired
- 1979-06-08 NL NLAANVRAGE7904504,A patent/NL179552C/en not_active IP Right Cessation
- 1979-06-22 BE BE2/57900A patent/BE877182A/en not_active IP Right Cessation
- 1979-06-22 IT IT49522/79A patent/IT1119768B/en active
- 1979-06-27 FR FR7916608A patent/FR2430260A1/en active Granted
- 1979-07-03 DE DE2926894A patent/DE2926894C2/en not_active Expired
- 1979-07-06 CA CA331,302A patent/CA1131197A/en not_active Expired
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3518206A (en) * | 1968-05-17 | 1970-06-30 | Du Pont | Supported catalysts composed of substrate coated with colloidal silica and catalyst |
FR2215266A1 (en) * | 1973-01-27 | 1974-08-23 | Kali Chemie Ag | |
FR2257336A1 (en) * | 1973-10-24 | 1975-08-08 | Johnson Matthey Co Ltd | Noble metal catalyst on expanded iron alloy - with coating contg. oxygen, for oxidn., redn. and exhaust gas purificn. |
FR2258218A1 (en) * | 1974-01-19 | 1975-08-18 | Kali Chemie Ag | |
DE2422851A1 (en) * | 1974-05-06 | 1975-11-20 | Atomic Energy Authority Uk | CATALYST SYSTEM |
US4040981A (en) * | 1975-06-30 | 1977-08-09 | Hitachi Shipbuilding & Engineering Co., Ltd. | Process for producing denitrating catalysts |
FR2369870A1 (en) * | 1976-11-09 | 1978-06-02 | Hitachi Shipbuilding Eng Co | PROCESS FOR PREPARING VERY ACTIVE DENITRIFICATION CATALYSTS |
Also Published As
Publication number | Publication date |
---|---|
GB2024640A (en) | 1980-01-16 |
CA1131197A (en) | 1982-09-07 |
JPS5926341B2 (en) | 1984-06-26 |
NL7904504A (en) | 1980-01-08 |
NL179552B (en) | 1986-05-01 |
JPS558875A (en) | 1980-01-22 |
NL179552C (en) | 1986-10-01 |
BE877182A (en) | 1979-10-15 |
IT7949522A0 (en) | 1979-06-22 |
DE2926894A1 (en) | 1980-01-17 |
DE2926894C2 (en) | 1987-02-19 |
GB2024640B (en) | 1983-01-06 |
FR2430260B1 (en) | 1983-07-22 |
IT1119768B (en) | 1986-03-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |