GB2009375A - Multi stage process for fuel combustion - Google Patents
Multi stage process for fuel combustionInfo
- Publication number
- GB2009375A GB2009375A GB7846399A GB7846399A GB2009375A GB 2009375 A GB2009375 A GB 2009375A GB 7846399 A GB7846399 A GB 7846399A GB 7846399 A GB7846399 A GB 7846399A GB 2009375 A GB2009375 A GB 2009375A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- oxidizing agent
- nitrogen
- stage process
- air
- 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
- 238000002485 combustion reaction Methods 0.000 title abstract 3
- 239000000446 fuel Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- 239000007800 oxidant agent Substances 0.000 abstract 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000013626 chemical specie Substances 0.000 abstract 1
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
- F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
A multi-stage process for combusting a fuel containing fixed-nitrogen chemical species so as to avoid, reduce or mitigate the conversion of the nitrogen therein to atmospheric pollutants such as nitrogen oxides, which process comprises mixing the fuel with at least one first oxidizing agent (e.g. air) so that the resulting mixture has an equivalence ratio <IMAGE> of at least 1.2. The resulting mixture is then partially combusted in at least one stage at a temperature in the range from 1950 to 2400 DEG K with a residence time of at least 0.01 second. The combustion products from the first stage are mixed with at least one second oxidizing agent (e.g. air) with an equivalence ratio not exceeding 1.0, the mixing conditions being such as to avoid temperatures exceeding 1750 DEG K. The second mixture of combustion products and oxidizing agent(s) is then completely combusted in at least one second stage at a temperature below 1750 DEG K.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US85554877A | 1977-11-29 | 1977-11-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2009375A true GB2009375A (en) | 1979-06-13 |
| GB2009375B GB2009375B (en) | 1982-03-10 |
Family
ID=25321540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7846399A Expired GB2009375B (en) | 1977-11-29 | 1978-11-28 | Multi stage process for combusting fuels containing fixednitrogen chemical species |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5490625A (en) |
| BE (1) | BE872323A (en) |
| CA (1) | CA1091570A (en) |
| DE (1) | DE2850551A1 (en) |
| FR (1) | FR2410218A1 (en) |
| GB (1) | GB2009375B (en) |
| NL (1) | NL7811715A (en) |
| SE (1) | SE440393B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0030831A2 (en) * | 1979-12-07 | 1981-06-24 | Exxon Research And Engineering Company | Coal combustion process |
| WO1991010864A1 (en) * | 1990-01-08 | 1991-07-25 | Transalta Resources Investment Corporation | Combustion process |
| US5215455A (en) * | 1990-01-08 | 1993-06-01 | Tansalta Resources Investment Corporation | Combustion process |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4427362A (en) * | 1980-08-14 | 1984-01-24 | Rockwell International Corporation | Combustion method |
| US4517165A (en) * | 1981-03-03 | 1985-05-14 | Rockwell International Corporation | Combustion method |
| WO1996005273A1 (en) * | 1994-08-10 | 1996-02-22 | Westinghouse Electric Corporation | Method and apparatus for cleaning and burning a hot coal-derived fuel gas |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3816595A (en) * | 1971-11-15 | 1974-06-11 | Aqua Chem Inc | Method and apparatus for removing nitrogen oxides from a gas stream |
| JPS5237611B2 (en) * | 1973-03-01 | 1977-09-24 | ||
| US4021186A (en) * | 1974-06-19 | 1977-05-03 | Exxon Research And Engineering Company | Method and apparatus for reducing NOx from furnaces |
| JPS5175236A (en) * | 1974-12-26 | 1976-06-29 | Sunray Reinetsu Co | Gasubaanani okeru gasunenshochuno nox hatsuseiboshihoho oyobi sonosochi |
| JPS5214227A (en) * | 1975-07-24 | 1977-02-03 | Osaka Gas Co Ltd | Double stage combustion system to restrict volume of generation of nit rogen oxide |
-
1978
- 1978-11-22 DE DE19782850551 patent/DE2850551A1/en not_active Withdrawn
- 1978-11-24 SE SE7812147A patent/SE440393B/en not_active IP Right Cessation
- 1978-11-28 BE BE2057446A patent/BE872323A/en not_active IP Right Cessation
- 1978-11-28 GB GB7846399A patent/GB2009375B/en not_active Expired
- 1978-11-28 CA CA316,985A patent/CA1091570A/en not_active Expired
- 1978-11-28 FR FR7833532A patent/FR2410218A1/en active Granted
- 1978-11-29 JP JP14770578A patent/JPS5490625A/en active Pending
- 1978-11-29 NL NL7811715A patent/NL7811715A/en not_active Application Discontinuation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0030831A2 (en) * | 1979-12-07 | 1981-06-24 | Exxon Research And Engineering Company | Coal combustion process |
| EP0030831A3 (en) * | 1979-12-07 | 1981-11-04 | Exxon Research And Engineering Company | Improved coal combustion process |
| WO1991010864A1 (en) * | 1990-01-08 | 1991-07-25 | Transalta Resources Investment Corporation | Combustion process |
| US5085156A (en) * | 1990-01-08 | 1992-02-04 | Transalta Resources Investment Corporation | Combustion process |
| US5215455A (en) * | 1990-01-08 | 1993-06-01 | Tansalta Resources Investment Corporation | Combustion process |
Also Published As
| Publication number | Publication date |
|---|---|
| SE7812147L (en) | 1979-05-30 |
| CA1091570A (en) | 1980-12-16 |
| GB2009375B (en) | 1982-03-10 |
| FR2410218A1 (en) | 1979-06-22 |
| BE872323A (en) | 1979-05-28 |
| DE2850551A1 (en) | 1979-06-07 |
| NL7811715A (en) | 1979-05-31 |
| SE440393B (en) | 1985-07-29 |
| JPS5490625A (en) | 1979-07-18 |
| FR2410218B1 (en) | 1984-02-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |