ITMI932337A1 - PROCESS FOR THE CATALYTIC REDUCTION OF NOX IN COMBUSTION FUMES - Google Patents
PROCESS FOR THE CATALYTIC REDUCTION OF NOX IN COMBUSTION FUMESInfo
- Publication number
- ITMI932337A1 ITMI932337A1 IT93MI002337A ITMI932337A ITMI932337A1 IT MI932337 A1 ITMI932337 A1 IT MI932337A1 IT 93MI002337 A IT93MI002337 A IT 93MI002337A IT MI932337 A ITMI932337 A IT MI932337A IT MI932337 A1 ITMI932337 A1 IT MI932337A1
- Authority
- IT
- Italy
- Prior art keywords
- catalytic reduction
- nox
- combustion fumes
- fumes
- present
- Prior art date
Links
- 239000003517 fume Substances 0.000 title abstract 3
- 238000010531 catalytic reduction reaction Methods 0.000 title abstract 2
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- 239000004215 Carbon black (E152) Substances 0.000 abstract 1
- 229910021536 Zeolite Inorganic materials 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 150000001868 cobalt Chemical class 0.000 abstract 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical group O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 1
- 229930195733 hydrocarbon Natural products 0.000 abstract 1
- 150000002430 hydrocarbons Chemical class 0.000 abstract 1
- 239000010457 zeolite Substances 0.000 abstract 1
Landscapes
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
La presente invenzione riguarda un processo per la riduzione catalitica degli ossidi d'azoto, presenti nei fumi di combustione, che consiste nel porre a contatto questi fumi con una zeolite beta scambiata con sali di cobalto, in presenza di un idrocarburo leggero come riducente.The present invention relates to a process for the catalytic reduction of nitrogen oxides, present in the combustion fumes, which consists in putting these fumes in contact with a beta zeolite exchanged with cobalt salts, in the presence of a light hydrocarbon as a reducing agent.
Priority Applications (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT93MI002337A IT1266666B1 (en) | 1993-11-04 | 1993-11-04 | Process for the catalytic reduction of NOx in combustion gases |
| AT99201922T ATE278454T1 (en) | 1993-11-04 | 1994-10-25 | CATALYST FOR REDUCING NOX IN COMBUSTION EXHAUSTS |
| DE69434059T DE69434059T2 (en) | 1993-11-04 | 1994-10-25 | Catalyst for the reduction of NOx in combustion exhaust gases |
| DK94203091T DK0652040T3 (en) | 1993-11-04 | 1994-10-25 | Process and catalyst for reducing NOx in combustion exhaust gases |
| EP94203091A EP0652040B1 (en) | 1993-11-04 | 1994-10-25 | Process and catalyst for reducing NOx in combustion exhaust gases |
| DE69423845T DE69423845T2 (en) | 1993-11-04 | 1994-10-25 | Process and catalyst for the reduction of NOx in combustion gases |
| DK99201922T DK0945166T3 (en) | 1993-11-04 | 1994-10-25 | Catalyst for reducing NOx in combustion gases |
| AT94203091T ATE191363T1 (en) | 1993-11-04 | 1994-10-25 | METHOD AND CATALYST FOR REDUCING NOX IN COMBUSTION EXHAUSTS |
| EP99201922A EP0945166B1 (en) | 1993-11-04 | 1994-10-25 | Catalyst for reducing NOx in combustion exhaust gases |
| JP51312595A JP3543224B2 (en) | 1993-11-04 | 1994-11-02 | Method for reducing NOx in combustion exhaust gas and reduction catalyst |
| PCT/JP1994/001857 WO1995012447A1 (en) | 1993-11-04 | 1994-11-02 | PROCESS AND CATALYST FOR REDUCING NOx IN EXHAUST COMBUSTION GASES |
| KR1019950702749A KR100359675B1 (en) | 1993-11-04 | 1994-11-02 | NOx removal catalyst and how to remove NOx from combustion exhaust gas using this catalyst |
| CA002153154A CA2153154A1 (en) | 1993-11-04 | 1994-11-02 | Process and catalyst for reducing nox in exhaust combustion gases |
| CN94191106A CN1117271A (en) | 1993-11-04 | 1994-11-02 | Process and catalyst for reducing NOx in exhaust combustion gases |
| US08/941,013 US5869013A (en) | 1993-11-04 | 1997-09-30 | Process and catalyst for reducing Nox in exhaust combustion gases |
| US09/158,087 US6074976A (en) | 1993-11-04 | 1998-09-22 | Process and catalyst for reducing NOx in exhaust combustion gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT93MI002337A IT1266666B1 (en) | 1993-11-04 | 1993-11-04 | Process for the catalytic reduction of NOx in combustion gases |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| ITMI932337A0 ITMI932337A0 (en) | 1993-11-04 |
| ITMI932337A1 true ITMI932337A1 (en) | 1995-05-04 |
| IT1266666B1 IT1266666B1 (en) | 1997-01-09 |
Family
ID=11367143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT93MI002337A IT1266666B1 (en) | 1993-11-04 | 1993-11-04 | Process for the catalytic reduction of NOx in combustion gases |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1266666B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5985225A (en) * | 1995-10-06 | 1999-11-16 | Osaka Gas Company Limited | Nitrogen oxides reduction catalyst and process for reducing nitrogen oxides in exhaust gas |
| US5993764A (en) * | 1995-04-17 | 1999-11-30 | Osaka Gas Company Limited | Nitrogen oxide-reducing catalyst and process for reducing nitrogen oxides in exhaust gas |
-
1993
- 1993-11-04 IT IT93MI002337A patent/IT1266666B1/en active IP Right Grant
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5993764A (en) * | 1995-04-17 | 1999-11-30 | Osaka Gas Company Limited | Nitrogen oxide-reducing catalyst and process for reducing nitrogen oxides in exhaust gas |
| US5985225A (en) * | 1995-10-06 | 1999-11-16 | Osaka Gas Company Limited | Nitrogen oxides reduction catalyst and process for reducing nitrogen oxides in exhaust gas |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1266666B1 (en) | 1997-01-09 |
| ITMI932337A0 (en) | 1993-11-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 0001 | Granted | ||
| TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19971113 |