CA2564639C - Method for burning refining residues - Google Patents
Method for burning refining residues Download PDFInfo
- Publication number
- CA2564639C CA2564639C CA2564639A CA2564639A CA2564639C CA 2564639 C CA2564639 C CA 2564639C CA 2564639 A CA2564639 A CA 2564639A CA 2564639 A CA2564639 A CA 2564639A CA 2564639 C CA2564639 C CA 2564639C
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- CA
- Canada
- Prior art keywords
- hearth
- injectors
- residues
- gas
- injection
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
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- 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
- F23C1/00—Combustion apparatus specially adapted for combustion of two or more kinds of fuel simultaneously or alternately, at least one kind of fuel being either a fluid fuel or a solid fuel suspended in a carrier gas or air
-
- 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
- F23C5/00—Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus
- F23C5/08—Disposition of burners
- F23C5/32—Disposition of burners to obtain rotating flames, i.e. flames moving helically or spirally
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- 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
- F23C9/00—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
- F23C9/003—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for pulverulent fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D1/00—Burners for combustion of pulverulent fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/008—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals for liquid waste
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2214/00—Cooling
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion Of Fluid Fuel (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
A method for burning crude oil refining residues in a boiler, including a furnace (2) and injectors (5, 6, 30), characterised in that cooled gas containing oxygen (50) is injected into the furnace in the hottest portion (20) thereof to cause cracking of the tar or polycyclic aromatic hydrocarbons and the conversion thereof into basic materials that burn readily and thus pollute less.
Description
METHOD FOR BURNING REFINING RESIDUES
The present invention relates to a method and a device for burning residues from refining petroleum with minimum emission of nitrogen oxides and dust.
These residues, including tar, asphalt and bitumen, are of low commercial value and include in particular products that are solid at room temperature and have a viscosity in excess of 500 centistokes at 100 C. They are usually burned by refineries for their own purposes. The production of light diesel oil for automobiles in Europe leads to the production of these residues, for example.
Their combustion in conventional boilers is harmful to the environment, and new standards on the emission of oxides of sulfur in Europe, and in France in particular, make this solution impossible. These restrictions will also apply to dust, polycyclic aromatic hydrocarbons and volatile organic compounds.
Instead of burning these residues, it is possible to use other forms of treatment that are less harmful to the environment but more complex and more costly. Thus gasification may be used, either integrated into a combined cycle or taking the form of a deep conversion process that converts the residues to an economically viable final residue such as petroleum coke, for example.
The increased production of so-called "bottom of the barrel" residues (tar), in particular in Europe, which at present are burned by refineries in conventional boilers, will also lead to modification of the treatment of these residues.
The object of the present invention is to propose a method for the combustion of the residues previously cited and an injection device, both of which may be used in existing installations, in particular in tangential heating boilers, and which significantly reduce the emission of pollutants, primarily oxides of nitrogen and unburned carbon dust.
The method according to the invention for the combustion of residues from the refining of petroleum in a boiler comprising a hearth and injectors characterized in that recycled flue gases, residues and gas containing oxygen are simultaneously injected into the hearth in the hottest region of the hearth.
This region, situated in the immediate vicinity of the burner, is one of cyclonic flow, i.e. one in which the combustion gases are caused to rotate about a vertical axis to ensure that they are totally converted, leaving no unburned substances. Injection into the very hot region of the hearth ensures high-temperature cracking of the residues and their conversion into basic compounds (CO, H2, CH4, C02) that are easily combustible and therefore less pollutant, because of the reduction of unburned carbon dust. The method applies in particular to tangential heating boilers.
Simultaneous injection of recycled flue gases imparts movement to the jet of gas containing oxygen encouraging penetration of said gas into the hearth and in particular into the cyclonic, hottest region. Injecting recycled flue gases also facilitates the homogenization of the combustion products resulting from cracking of the residues in the hearth, and thereby prevents temperature peaks in the flue gases in the vicinity of the heat exchangers disposed over the combustion region.
Increased production of oxides of nitrogen (NOx) in the hot region is compensated by the low production of nitrogen oxide resulting from staged combustion using either staged air or staged fuel.
According to one particular feature, injection is effected by injectors disposed in the corners of the hearth. The injection position will be determined as a function of the nature of the residue to be burned. One or more injection levels may be provided as a function of the peak temperature in the hearth facing the barge-shaped arrangement of the fuel injector and as a function of the expected reduction in nitrogen oxides resulting from the staged combustion created in this way by combining injection of air and fuel and injection of recycled flue gases, oxygen and residue.
According to a second disposition, injection is effected by injectors on the lateral walls of the hearth.
According to one particular feature of the second disposition, the injectors are at the middle of each of the lateral walls of the hearth.
In a variant of the second disposition, the injectors are on the four walls.
In another variant of the second disposition, the injectors are on two facing walls.
The device in accordance with the invention for injecting gas into a boiler hearth is characterized in that it is installed in flue gas recirculation trunking and comprises concentric gas injection tubes. Combining two injections creates a hot conversion region. These devices may be installed at several locations in the hearth of the boiler.
In accordance with another aspect, the invention also concerns a device for injecting gas into a hearth of a tangential heating boiler, characterized in that it is installed in trunking for recirculating flue gases, it comprises concentric gas injection tubes and it is adapted to receive recycled flue gas, residues and gas containing oxygen and to simultaneously inject the recycled flue gases, the residues and the gas containing oxygen into said hearth at approximately a hottest region of the heath.
According to one particular feature, the device is substantially perpendicular to the walls of the hearth in a horizontal plane. The location, inclination and deviation in the horizontal plane of the device are 3a adapted as a function of the architecture of the boiler to encourage penetration into the hot combustion vortex region. The recirculated flue gas feed trunking may therefore be bent, which induces additional, substantially horizontal rotation of the incoming flow, and therefore creates or increases rotary flow about a i substantially vertical axis of the flue gases recirculated into the hearth.
According to another particular feature, the device is substantially inclined vertically towards the bottom of the hearth. The angle of inclination is preferably less than 450.
According to a second particular feature, the device comprises a cooling circuit. The temperature at the tip of the injection device is such that it is necessary to cool it.
According to a third feature, the device is swept by a gas to prevent it from becoming blocked by dust coming from the hearth.
According to a fourth feature, the device is retractable. It is therefore possible to carry out maintenance with the boiler in operation.
According to a fifth feature, the device comprises a gas pilot light which encourages self-ignition of the residue.
The invention will be better understood from the following description, which is given by way of example only and with reference to the appended drawings, in which:
- figure 1 is a view in vertical section of a boiler according to the invention, - figure 2 is a view in section of the boiler according to the invention, - figure 3 is a detailed view in section of an injector according to the invention in an injection position, - figure 4 is a detailed view in section of the figure 3 injector in a retracted position, and - figure 5 is a detailed view in section of the injector pipe.
In figure 1, the boiler 1 comprises a hearth 2 to which is fed fuel 3 surrounded by hot air 4. Injectors 5 inject oxygen or gas containing oxygen 50, the residue 51, and (where applicable) recycled flue gases 52. A
cooling liquid 53 such as water flows in the injectors 5 5 to cool them. The injectors 5 are placed at the height of t~ tio~~ ttest region 20 2n of ~ ~. the heartte.. ~.~~..~.h 2 . Add;t =lona-air ; s the .~
injected via the injector 6 to bring about staged combustion, in order to reduce the emission of oxides of nitrogen, the injectors 6 are located above the injectors 5 so that the flue gases remain between the two injection levels 5 and 6 for a period from 0.2 second to 5 seconds.
Figure 2 shows the figure 1 boiler 1 from above, at the height of the hot region 20. The fuel 3 and the hot air 4 are injected in the corners of the boiler 1. In this variant the injectors 5 are placed at the middle of the lateral walls 21 of the hearth 2, but they could be placed in the corners. The injection of the fuel 3 in the corners creates a vertical axis vortex 200 to which the residue 51 and the gas 50 are steered.
The injector 5 shown in detail in figure 3 comprises a feed pipe 500 for oxygen (or a gas containing oxygen) 50, a pipe 510 for the residue 51, a feed pipe 530 for the cooling liquid 53 and a return pipe 531 for said liquid 53. The recycled flue gases 52 arrive via a pipe 520. The injector 5 is inclined downward at an angle of less than 45 to encourage penetration of the residue 51 into the hot region 20. Below a region 22 for gasification of the residue 51 is a combustion region 23 and above it is a post-combustion region 24.
The injection pipe 54 discharging into the hearth 2 is shown in figure 5 and is made up of four concentric cylinders; the residue 51 flows in the central cylinder 540, the gas 50 enriched with oxygen flows between the cylinder 540 and the next cylinder 541, and the cooling liquid 53 flows between the cylinders 541, 542 and 543, making a return trip in the pipe 54 with the outward flow between the outermost cylinders 542 and 543 to facilitate cooling and the return flow between the innermost cylinders 541 and 542.
The flue gases 52 arrive via the pipe 520 and enter the pipe 521 of the injector 5 from which they are directed into the hearth 2 (see figure 3).
Figure 4 shows the injector 5 in a retracted position, the assembly comprising the pipe 54 and the pipes 530, 531, 510 and 500 being retracted into the feed pipe 521 for the flue gases 52 so that this assembly of the injector 5 may be maintained in service.
The execution of the method is described next.
The fuel 3 and the hot air 4 are injected into the lower portion 23 of the hearth 2. Combustion develops and the region 20 above the burner 30 is the hottest region. The residues 51 and the gas 50 enriched with oxygen are injected into this region 20, in which the residues 51 are cracked and reduced to combustible basic compounds.
Simultaneous concentric injection of recycled flue gases 52 via the injectors 5 imparts movement to the jet of oxygen (or gas enriched with oxygen) 50 and to the residue 51 encouraging penetration of the residue 51 and the gas 50 into the vertical axis cyclonic flow region 200 of the hearth 2 and creates a hot conversion region encouraging the combustion of the residue 51.
The number of injectors 5 to be installed in the hearth 2 is decided as a function of the properties of the residue 51 to be burned. The injectors could be disposed at one or more levels as a function of the heat flow permitted by the walls 21 and the requirement to smoothe temperature peaks in the flue gases where they impinge on the exchanger bundles 7.
The inclination of the injectors 5 and their deviation in the vertical direction is less than 45 .
The present invention relates to a method and a device for burning residues from refining petroleum with minimum emission of nitrogen oxides and dust.
These residues, including tar, asphalt and bitumen, are of low commercial value and include in particular products that are solid at room temperature and have a viscosity in excess of 500 centistokes at 100 C. They are usually burned by refineries for their own purposes. The production of light diesel oil for automobiles in Europe leads to the production of these residues, for example.
Their combustion in conventional boilers is harmful to the environment, and new standards on the emission of oxides of sulfur in Europe, and in France in particular, make this solution impossible. These restrictions will also apply to dust, polycyclic aromatic hydrocarbons and volatile organic compounds.
Instead of burning these residues, it is possible to use other forms of treatment that are less harmful to the environment but more complex and more costly. Thus gasification may be used, either integrated into a combined cycle or taking the form of a deep conversion process that converts the residues to an economically viable final residue such as petroleum coke, for example.
The increased production of so-called "bottom of the barrel" residues (tar), in particular in Europe, which at present are burned by refineries in conventional boilers, will also lead to modification of the treatment of these residues.
The object of the present invention is to propose a method for the combustion of the residues previously cited and an injection device, both of which may be used in existing installations, in particular in tangential heating boilers, and which significantly reduce the emission of pollutants, primarily oxides of nitrogen and unburned carbon dust.
The method according to the invention for the combustion of residues from the refining of petroleum in a boiler comprising a hearth and injectors characterized in that recycled flue gases, residues and gas containing oxygen are simultaneously injected into the hearth in the hottest region of the hearth.
This region, situated in the immediate vicinity of the burner, is one of cyclonic flow, i.e. one in which the combustion gases are caused to rotate about a vertical axis to ensure that they are totally converted, leaving no unburned substances. Injection into the very hot region of the hearth ensures high-temperature cracking of the residues and their conversion into basic compounds (CO, H2, CH4, C02) that are easily combustible and therefore less pollutant, because of the reduction of unburned carbon dust. The method applies in particular to tangential heating boilers.
Simultaneous injection of recycled flue gases imparts movement to the jet of gas containing oxygen encouraging penetration of said gas into the hearth and in particular into the cyclonic, hottest region. Injecting recycled flue gases also facilitates the homogenization of the combustion products resulting from cracking of the residues in the hearth, and thereby prevents temperature peaks in the flue gases in the vicinity of the heat exchangers disposed over the combustion region.
Increased production of oxides of nitrogen (NOx) in the hot region is compensated by the low production of nitrogen oxide resulting from staged combustion using either staged air or staged fuel.
According to one particular feature, injection is effected by injectors disposed in the corners of the hearth. The injection position will be determined as a function of the nature of the residue to be burned. One or more injection levels may be provided as a function of the peak temperature in the hearth facing the barge-shaped arrangement of the fuel injector and as a function of the expected reduction in nitrogen oxides resulting from the staged combustion created in this way by combining injection of air and fuel and injection of recycled flue gases, oxygen and residue.
According to a second disposition, injection is effected by injectors on the lateral walls of the hearth.
According to one particular feature of the second disposition, the injectors are at the middle of each of the lateral walls of the hearth.
In a variant of the second disposition, the injectors are on the four walls.
In another variant of the second disposition, the injectors are on two facing walls.
The device in accordance with the invention for injecting gas into a boiler hearth is characterized in that it is installed in flue gas recirculation trunking and comprises concentric gas injection tubes. Combining two injections creates a hot conversion region. These devices may be installed at several locations in the hearth of the boiler.
In accordance with another aspect, the invention also concerns a device for injecting gas into a hearth of a tangential heating boiler, characterized in that it is installed in trunking for recirculating flue gases, it comprises concentric gas injection tubes and it is adapted to receive recycled flue gas, residues and gas containing oxygen and to simultaneously inject the recycled flue gases, the residues and the gas containing oxygen into said hearth at approximately a hottest region of the heath.
According to one particular feature, the device is substantially perpendicular to the walls of the hearth in a horizontal plane. The location, inclination and deviation in the horizontal plane of the device are 3a adapted as a function of the architecture of the boiler to encourage penetration into the hot combustion vortex region. The recirculated flue gas feed trunking may therefore be bent, which induces additional, substantially horizontal rotation of the incoming flow, and therefore creates or increases rotary flow about a i substantially vertical axis of the flue gases recirculated into the hearth.
According to another particular feature, the device is substantially inclined vertically towards the bottom of the hearth. The angle of inclination is preferably less than 450.
According to a second particular feature, the device comprises a cooling circuit. The temperature at the tip of the injection device is such that it is necessary to cool it.
According to a third feature, the device is swept by a gas to prevent it from becoming blocked by dust coming from the hearth.
According to a fourth feature, the device is retractable. It is therefore possible to carry out maintenance with the boiler in operation.
According to a fifth feature, the device comprises a gas pilot light which encourages self-ignition of the residue.
The invention will be better understood from the following description, which is given by way of example only and with reference to the appended drawings, in which:
- figure 1 is a view in vertical section of a boiler according to the invention, - figure 2 is a view in section of the boiler according to the invention, - figure 3 is a detailed view in section of an injector according to the invention in an injection position, - figure 4 is a detailed view in section of the figure 3 injector in a retracted position, and - figure 5 is a detailed view in section of the injector pipe.
In figure 1, the boiler 1 comprises a hearth 2 to which is fed fuel 3 surrounded by hot air 4. Injectors 5 inject oxygen or gas containing oxygen 50, the residue 51, and (where applicable) recycled flue gases 52. A
cooling liquid 53 such as water flows in the injectors 5 5 to cool them. The injectors 5 are placed at the height of t~ tio~~ ttest region 20 2n of ~ ~. the heartte.. ~.~~..~.h 2 . Add;t =lona-air ; s the .~
injected via the injector 6 to bring about staged combustion, in order to reduce the emission of oxides of nitrogen, the injectors 6 are located above the injectors 5 so that the flue gases remain between the two injection levels 5 and 6 for a period from 0.2 second to 5 seconds.
Figure 2 shows the figure 1 boiler 1 from above, at the height of the hot region 20. The fuel 3 and the hot air 4 are injected in the corners of the boiler 1. In this variant the injectors 5 are placed at the middle of the lateral walls 21 of the hearth 2, but they could be placed in the corners. The injection of the fuel 3 in the corners creates a vertical axis vortex 200 to which the residue 51 and the gas 50 are steered.
The injector 5 shown in detail in figure 3 comprises a feed pipe 500 for oxygen (or a gas containing oxygen) 50, a pipe 510 for the residue 51, a feed pipe 530 for the cooling liquid 53 and a return pipe 531 for said liquid 53. The recycled flue gases 52 arrive via a pipe 520. The injector 5 is inclined downward at an angle of less than 45 to encourage penetration of the residue 51 into the hot region 20. Below a region 22 for gasification of the residue 51 is a combustion region 23 and above it is a post-combustion region 24.
The injection pipe 54 discharging into the hearth 2 is shown in figure 5 and is made up of four concentric cylinders; the residue 51 flows in the central cylinder 540, the gas 50 enriched with oxygen flows between the cylinder 540 and the next cylinder 541, and the cooling liquid 53 flows between the cylinders 541, 542 and 543, making a return trip in the pipe 54 with the outward flow between the outermost cylinders 542 and 543 to facilitate cooling and the return flow between the innermost cylinders 541 and 542.
The flue gases 52 arrive via the pipe 520 and enter the pipe 521 of the injector 5 from which they are directed into the hearth 2 (see figure 3).
Figure 4 shows the injector 5 in a retracted position, the assembly comprising the pipe 54 and the pipes 530, 531, 510 and 500 being retracted into the feed pipe 521 for the flue gases 52 so that this assembly of the injector 5 may be maintained in service.
The execution of the method is described next.
The fuel 3 and the hot air 4 are injected into the lower portion 23 of the hearth 2. Combustion develops and the region 20 above the burner 30 is the hottest region. The residues 51 and the gas 50 enriched with oxygen are injected into this region 20, in which the residues 51 are cracked and reduced to combustible basic compounds.
Simultaneous concentric injection of recycled flue gases 52 via the injectors 5 imparts movement to the jet of oxygen (or gas enriched with oxygen) 50 and to the residue 51 encouraging penetration of the residue 51 and the gas 50 into the vertical axis cyclonic flow region 200 of the hearth 2 and creates a hot conversion region encouraging the combustion of the residue 51.
The number of injectors 5 to be installed in the hearth 2 is decided as a function of the properties of the residue 51 to be burned. The injectors could be disposed at one or more levels as a function of the heat flow permitted by the walls 21 and the requirement to smoothe temperature peaks in the flue gases where they impinge on the exchanger bundles 7.
The inclination of the injectors 5 and their deviation in the vertical direction is less than 45 .
The injection system 5 comprises a gas pilot light to encourage self-ignition of the residue 51.
Claims (13)
1. Method for combustion of residues from refining petroleum (51) in a boiler (1) comprising a hearth (2) and injectors (5, 30, 6), characterized in that recycled flue gases (52), residues and gas containing oxygen (50) are simultaneously injected into the hearth (2) in the hottest region (20) of said hearth (2).
2. Method according to claim 1, characterized in that injection is effected by injectors (5) disposed in the corners of the hearth (2).
3. Method according to claim 1, characterized in that injection is effected by injectors (5) disposed on lateral walls (21) of the hearth (2).
4. Method according to any one of claims 1 to 3, characterized in that the injectors (5) are placed at the middle of each lateral wall (21) of the hearth (2).
5. Method according to any one of claims 1 to 4, characterized in that the injectors (5) are placed on the four walls (21).
6. Method according to claim 5, characterized in that the injectors (5) are placed on two facing walls (21).
7. Device for injecting gas (5) into a hearth (2) of a tangential heating boiler (1), characterized in that it is installed in trunking (521) for recirculating flue gases (52), it comprises concentric gas injection tubes (540, 541, 542, 543) and it is adapted to receive recycled flue gas (52), residues (51) and gas containing oxygen (50) and to simultaneously inject the recycled flue gases (52), the residues (51) and the gas containing oxygen (50) into said hearth at approximately a hottest region (20) of the hearth.
8. Device according to claim 7, characterized in that it is disposed substantially perpendicular to the walls (21) of the hearth (2) in a horizontal plane.
9. Device according to claim 8, characterized in that it is substantially inclined vertically toward the bottom of the hearth (2).
10. Device according to claim 7 or 8, characterized in that it comprises a cooling circuit (53, 530, 531, 541, 542, 543).
11. Device according to any one of claims 7 to 9, characterized in that it is swept by gases.
12. Device according to any one of claims 7 to 10, characterized in that it is retractable.
13. Device according to any one of claims 7 to 11, characterized in that it comprises a gas pilot light.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0450840 | 2004-04-30 | ||
| FR0450840A FR2869673B1 (en) | 2004-04-30 | 2004-04-30 | PROCESS FOR COMBUSTION OF REFINING RESIDUES |
| PCT/FR2005/050284 WO2005111498A1 (en) | 2004-04-30 | 2005-04-28 | Method for burning refining residues |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2564639A1 CA2564639A1 (en) | 2005-11-24 |
| CA2564639C true CA2564639C (en) | 2012-12-04 |
Family
ID=34948850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2564639A Active CA2564639C (en) | 2004-04-30 | 2005-04-28 | Method for burning refining residues |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20110146546A1 (en) |
| EP (1) | EP1740886A1 (en) |
| CN (1) | CN1977128B (en) |
| CA (1) | CA2564639C (en) |
| FR (1) | FR2869673B1 (en) |
| MX (1) | MXPA06012429A (en) |
| WO (1) | WO2005111498A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563634B (en) * | 2011-11-14 | 2015-02-18 | 上海锅炉厂有限公司 | Coal dust thickness-thinness separating and distributing structure of single-fireball eight-corner direct-flow burner |
| GB2531010A (en) * | 2014-10-07 | 2016-04-13 | Linde Ag | Incineration of waste |
| JP6461588B2 (en) * | 2014-12-12 | 2019-01-30 | 川崎重工業株式会社 | Combustion system |
| JP2017190920A (en) * | 2016-04-14 | 2017-10-19 | 日工株式会社 | Burner device and combustion method for the same |
| CN110925744B (en) * | 2019-12-11 | 2021-09-17 | 中国能源建设集团广东省电力设计研究院有限公司 | System for recycling bypass flue gas heat from heat conducting oil of cold flue gas recirculation unit and control method |
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| US5020454A (en) * | 1990-10-31 | 1991-06-04 | Combustion Engineering, Inc. | Clustered concentric tangential firing system |
| US5129333A (en) * | 1991-06-24 | 1992-07-14 | Aga Ab | Apparatus and method for recycling waste |
| DE4140063A1 (en) * | 1991-12-05 | 1993-06-09 | Hoechst Ag, 6230 Frankfurt, De | BURNER FOR THE PRODUCTION OF SYNTHESIS GAS |
| US5217363A (en) * | 1992-06-03 | 1993-06-08 | Gaz Metropolitan & Co., Ltd. And Partnership | Air-cooled oxygen gas burner assembly |
| DE19806823C2 (en) * | 1998-02-18 | 1999-12-09 | Loesche Gmbh | Device and method for the combustion of fuels containing vanadium |
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| US6314896B1 (en) * | 1999-06-10 | 2001-11-13 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for operating a boiler using oxygen-enriched oxidants |
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| US6699030B2 (en) * | 2001-01-11 | 2004-03-02 | Praxair Technology, Inc. | Combustion in a multiburner furnace with selective flow of oxygen |
| US6702569B2 (en) * | 2001-01-11 | 2004-03-09 | Praxair Technology, Inc. | Enhancing SNCR-aided combustion with oxygen addition |
| DE60232346D1 (en) * | 2001-09-07 | 2009-06-25 | Air Prod & Chem | METHOD FOR THE COMPLETE UNSUPPORTED PETROLEUM COKE COMBUSTION |
| US7484956B2 (en) * | 2003-09-16 | 2009-02-03 | Praxair Technology, Inc. | Low NOx combustion using cogenerated oxygen and nitrogen streams |
-
2004
- 2004-04-30 FR FR0450840A patent/FR2869673B1/en not_active Expired - Fee Related
-
2005
- 2005-04-28 US US11/587,513 patent/US20110146546A1/en not_active Abandoned
- 2005-04-28 EP EP05747077A patent/EP1740886A1/en not_active Withdrawn
- 2005-04-28 WO PCT/FR2005/050284 patent/WO2005111498A1/en active Application Filing
- 2005-04-28 MX MXPA06012429A patent/MXPA06012429A/en not_active Application Discontinuation
- 2005-04-28 CN CN2005800215017A patent/CN1977128B/en not_active Expired - Fee Related
- 2005-04-28 CA CA2564639A patent/CA2564639C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN1977128B (en) | 2011-11-09 |
| WO2005111498A1 (en) | 2005-11-24 |
| FR2869673B1 (en) | 2010-11-19 |
| US20110146546A1 (en) | 2011-06-23 |
| CN1977128A (en) | 2007-06-06 |
| MXPA06012429A (en) | 2007-01-31 |
| CA2564639A1 (en) | 2005-11-24 |
| EP1740886A1 (en) | 2007-01-10 |
| FR2869673A1 (en) | 2005-11-04 |
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| EEER | Examination request |