AR072502A1 - PROCESS TO REDUCE THE COHESIVITY AND / OR ADHERENCE OF ESCORIA IN A CHAMBER OF COMBUSTION AND PROCESS OF CLEANING AND MAINTENANCE OF A BOILER. - Google Patents
PROCESS TO REDUCE THE COHESIVITY AND / OR ADHERENCE OF ESCORIA IN A CHAMBER OF COMBUSTION AND PROCESS OF CLEANING AND MAINTENANCE OF A BOILER.Info
- Publication number
- AR072502A1 AR072502A1 ARP090102634A ARP090102634A AR072502A1 AR 072502 A1 AR072502 A1 AR 072502A1 AR P090102634 A ARP090102634 A AR P090102634A AR P090102634 A ARP090102634 A AR P090102634A AR 072502 A1 AR072502 A1 AR 072502A1
- Authority
- AR
- Argentina
- Prior art keywords
- slag
- reagent
- carbon
- pounds
- per ton
- Prior art date
Links
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
- F23C99/00—Subject-matter not provided for in other groups of this subclass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L10/00—Use of additives to fuels or fires for particular purposes
- C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J7/00—Arrangement of devices for supplying chemicals to fire
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
- C10L2200/0204—Metals or alloys
- C10L2200/0213—Group II metals: Be, Mg, Ca, Sr, Ba, Ra, Zn, Cd, Hg
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
- C10L2200/0204—Metals or alloys
- C10L2200/0218—Group III metals: Sc, Y, Al, Ga, In, Tl
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2200/00—Components of fuel compositions
- C10L2200/02—Inorganic or organic compounds containing atoms other than C, H or O, e.g. organic compounds containing heteroatoms or metal organic complexes
- C10L2200/0254—Oxygen containing compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/14—Injection, e.g. in a reactor or a fuel stream during fuel production
- C10L2290/141—Injection, e.g. in a reactor or a fuel stream during fuel production of additive or catalyst
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L2290/00—Fuel preparation or upgrading, processes or apparatus therefore, comprising specific process steps or apparatus units
- C10L2290/18—Spraying or sprinkling
Abstract
Se describe un proceso que aumenta el rendimiento de una cámara de combustion alimentada con carbon que tiene alto contenido de hierro y/o calcio, reduciendo la tendencia a la formacion de escorias sobre superficies de intercambio térmico y cambiando la naturaleza de la escoria para su más fácil remocion. El proceso incluye quemar un carbon formador de escoria, que tiene alto contenido de hierro y/o calcio, con un exceso total de oxígeno; mover los gases de combustion resultantes a través del equipo de intercambio térmico bajo condiciones las cuales causan el enfriamiento de la escoria formada quemando el combustible; y con anterioridad al contacto con dicho equipo de intercambio térmico, introducir trihidroxido de aluminio acuoso en cantidades y con tamanos de gota y concentraciones eficaces para disminuir la velocidad de ensuciamiento, y preferentemente, aumentar la fragilidad de la escoria resultante. Deseablemente, el reactivo de trihidroxido de aluminio es introducido en la forma de un líquido acuoso y se emplea dinámica computacional de fluidos para determinar las velocidades de flujo y seleccionar las velocidades de introduccion de reactivo, punto(s) de introduccion de reactivo, concentracion de reactivo, tamano de gota del reactivo y/o momento del reactivo, En un aspecto preferido, la velocidad de alimentacion será de hasta aproximadamente 2,72 kg (6 libras) de ATH por tonelada y preferentemente con hasta aproximadamente 0,90 kg (2 libras) de Mg(OH)2 por tonelada de carbon. También se proporciona un proceso para la limpieza y mantenimiento del estado limpio de una cámara de combustion. Reivindicacion 9: Un proceso de limpieza y mantenimiento de una caldera caracterizado porque comprende un régimen de dosificacion inicial de entre aproximadamente 1,36 y 2,72 kg (3 y 6 libras) de ATH por tonelada de carbon y aproximadamente 0,45 a 0,90 kg (1 a 2 libras) de Mg(OH)2 por tonelada de carbon durante un tiempo suficiente para reducir la escoria, seguido por una reduccion de la dosificacion de entre aproximadamente 10 a aproximadamente 50% de los valores iniciales para mantener la cámara de combustion limpia y funcionando de manera eficaz.A process is described that increases the performance of a combustion chamber fed with carbon that has a high content of iron and / or calcium, reducing the tendency to slag formation on heat exchange surfaces and changing the nature of the slag for further easy removal The process includes burning a slag-forming carbon, which is high in iron and / or calcium, with a total excess of oxygen; move the resulting combustion gases through the heat exchange equipment under conditions which cause the slag formed to burn by burning the fuel; and prior to contact with said thermal exchange equipment, introduce aqueous aluminum trihydroxide in amounts and with effective drop sizes and concentrations to decrease the fouling rate, and preferably, increase the fragility of the resulting slag. Desirably, the aluminum trihydroxide reagent is introduced in the form of an aqueous liquid and computational fluid dynamics is used to determine flow rates and select reagent introduction rates, reagent introduction point (s), concentration of reagent, reagent drop size and / or reagent time, In a preferred aspect, the feed rate will be up to about 2.72 kg (6 pounds) of ATH per ton and preferably with up to about 0.90 kg (2 pounds) of Mg (OH) 2 per ton of carbon. A process for cleaning and maintaining the clean state of a combustion chamber is also provided. Claim 9: A cleaning and maintenance process of a boiler characterized in that it comprises an initial dosing regime of between approximately 1.36 and 2.72 kg (3 and 6 pounds) of ATH per ton of carbon and approximately 0.45 to 0 , 90 kg (1 to 2 pounds) of Mg (OH) 2 per ton of carbon for a time sufficient to reduce slag, followed by a dosage reduction of between about 10 to about 50% of the initial values to maintain combustion chamber clean and working efficiently.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8000408P | 2008-07-11 | 2008-07-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR072502A1 true AR072502A1 (en) | 2010-09-01 |
Family
ID=41507460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP090102634A AR072502A1 (en) | 2008-07-11 | 2009-07-13 | PROCESS TO REDUCE THE COHESIVITY AND / OR ADHERENCE OF ESCORIA IN A CHAMBER OF COMBUSTION AND PROCESS OF CLEANING AND MAINTENANCE OF A BOILER. |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US20100006014A1 (en) |
| EP (1) | EP2318489B1 (en) |
| JP (1) | JP5657533B2 (en) |
| KR (1) | KR101298932B1 (en) |
| CN (1) | CN102089413B (en) |
| AR (1) | AR072502A1 (en) |
| AU (1) | AU2009268391C1 (en) |
| CA (1) | CA2729959C (en) |
| CL (1) | CL2009001571A1 (en) |
| CO (1) | CO6300873A2 (en) |
| ES (1) | ES2554165T3 (en) |
| HK (1) | HK1157810A1 (en) |
| MX (1) | MX2011000275A (en) |
| MY (1) | MY156010A (en) |
| PL (1) | PL2318489T3 (en) |
| RU (1) | RU2493240C2 (en) |
| TW (1) | TWI482852B (en) |
| WO (1) | WO2010006325A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090178599A1 (en) | 2008-01-15 | 2009-07-16 | Environmental Energy Services, Inc. | Process for operating a coal-fired furnace with reduced slag formation |
| AU2012205350B2 (en) | 2011-01-14 | 2016-03-24 | Environmental Energy Services, Inc. | Process for operating a furnace with a bituminous coal and method for reducing slag formation therewith |
| US9920929B2 (en) * | 2011-06-13 | 2018-03-20 | Ecolab Usa Inc. | Method for reducing slag in biomass combustion |
| WO2017053499A1 (en) * | 2015-09-25 | 2017-03-30 | Fuel Tech, Inc. | Process and apparatus for reducing plume |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3153091B2 (en) * | 1994-03-10 | 2001-04-03 | 株式会社荏原製作所 | Waste treatment method and gasification and melting and combustion equipment |
| CA1136078A (en) * | 1978-09-21 | 1982-11-23 | George P. Masologites | Process for removing sulfur from coal |
| US4428310A (en) * | 1982-07-26 | 1984-01-31 | Nalco Chemical Company | Phosphated alumina as slag modifier |
| JPS59189144A (en) * | 1983-04-12 | 1984-10-26 | Hokuriku Electric Power Co Inc:The | Filler for rubber |
| US4498402A (en) | 1983-06-13 | 1985-02-12 | Kober Alfred E | Method of reducing high temperature slagging in furnaces and conditioner for use therein |
| JPH0586374A (en) * | 1991-09-26 | 1993-04-06 | Teikoku Sekiyu Kk | Decomposition of carbohydrate into combustible gas |
| RU2086293C1 (en) * | 1993-05-28 | 1997-08-10 | Олег Порфирьевич Кочетков | Method and device for gas scrubbing |
| US6289827B1 (en) * | 1999-06-24 | 2001-09-18 | Martin Marietta Magnesia Specialties Inc. | Process for the control of ash accumulation and corrosivity associated with selective catalytic reduction technology |
| US6729248B2 (en) * | 2000-06-26 | 2004-05-04 | Ada Environmental Solutions, Llc | Low sulfur coal additive for improved furnace operation |
| US6613110B2 (en) * | 2001-01-11 | 2003-09-02 | Benetech, Inc. | Inhibition of reflective ash build-up in coal-fired furnaces |
| JP3745973B2 (en) * | 2001-03-23 | 2006-02-15 | タイホー工業株式会社 | Coal additive for preventing slagging and coal combustion method |
| JP2003090530A (en) * | 2001-07-10 | 2003-03-28 | Ishikawajima Harima Heavy Ind Co Ltd | Clinker accumulation preventing device |
| JP3746026B2 (en) * | 2002-08-28 | 2006-02-15 | タイホー工業株式会社 | Fuel additive for preventing slagging and fuel combustion method |
| CN1890021B (en) * | 2003-12-05 | 2013-01-16 | 英特凯特公司 | Mixed metal oxide sorbents |
| US7162960B2 (en) * | 2004-01-08 | 2007-01-16 | Fuel Tech, Inc. | Process for reducing plume opacity |
| TWI342335B (en) * | 2004-06-02 | 2011-05-21 | Intercat Inc | Mixed metal oxide additives |
| US20060121398A1 (en) * | 2004-12-07 | 2006-06-08 | Meffert Michael W | Additive atomizing systems and apparatus |
| PL1848524T3 (en) * | 2005-02-04 | 2015-04-30 | Fuel Tech Inc | Targeted duct injection for so3 control |
| WO2006138715A1 (en) * | 2005-06-16 | 2006-12-28 | Warner Chilcott Company, Inc. | Estrogen compositions for vaginal administration |
| US20090071067A1 (en) * | 2007-09-17 | 2009-03-19 | Ian Macpherson | Environmentally-Friendly Additives And Additive Compositions For Solid Fuels |
| US20090178599A1 (en) * | 2008-01-15 | 2009-07-16 | Environmental Energy Services, Inc. | Process for operating a coal-fired furnace with reduced slag formation |
-
2009
- 2009-07-10 CL CL2009001571A patent/CL2009001571A1/en unknown
- 2009-07-10 TW TW098123559A patent/TWI482852B/en not_active IP Right Cessation
- 2009-07-13 US US12/501,590 patent/US20100006014A1/en not_active Abandoned
- 2009-07-13 AR ARP090102634A patent/AR072502A1/en not_active Application Discontinuation
- 2009-07-13 RU RU2011103846/04A patent/RU2493240C2/en not_active IP Right Cessation
- 2009-07-13 CN CN2009801268715A patent/CN102089413B/en not_active Expired - Fee Related
- 2009-07-13 ES ES09795277.4T patent/ES2554165T3/en active Active
- 2009-07-13 WO PCT/US2009/050354 patent/WO2010006325A1/en active Application Filing
- 2009-07-13 MY MYPI2011000010A patent/MY156010A/en unknown
- 2009-07-13 PL PL09795277T patent/PL2318489T3/en unknown
- 2009-07-13 MX MX2011000275A patent/MX2011000275A/en active IP Right Grant
- 2009-07-13 EP EP09795277.4A patent/EP2318489B1/en not_active Not-in-force
- 2009-07-13 JP JP2011517673A patent/JP5657533B2/en not_active Expired - Fee Related
- 2009-07-13 AU AU2009268391A patent/AU2009268391C1/en not_active Ceased
- 2009-07-13 CA CA2729959A patent/CA2729959C/en not_active Expired - Fee Related
- 2009-07-13 KR KR1020117003171A patent/KR101298932B1/en not_active IP Right Cessation
-
2011
- 2011-02-04 CO CO11012993A patent/CO6300873A2/en active IP Right Grant
- 2011-11-07 HK HK11111996.8A patent/HK1157810A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| AU2009268391C1 (en) | 2014-12-11 |
| KR101298932B1 (en) | 2013-08-22 |
| TWI482852B (en) | 2015-05-01 |
| RU2011103846A (en) | 2012-08-20 |
| RU2493240C2 (en) | 2013-09-20 |
| CN102089413A (en) | 2011-06-08 |
| CO6300873A2 (en) | 2011-07-21 |
| EP2318489B1 (en) | 2015-09-02 |
| WO2010006325A1 (en) | 2010-01-14 |
| ES2554165T3 (en) | 2015-12-16 |
| HK1157810A1 (en) | 2012-07-06 |
| PL2318489T3 (en) | 2016-03-31 |
| CL2009001571A1 (en) | 2010-03-12 |
| CA2729959C (en) | 2015-09-01 |
| EP2318489A1 (en) | 2011-05-11 |
| EP2318489A4 (en) | 2013-05-15 |
| AU2009268391B2 (en) | 2014-05-08 |
| MY156010A (en) | 2015-12-31 |
| TW201009067A (en) | 2010-03-01 |
| KR20110043656A (en) | 2011-04-27 |
| JP2011527000A (en) | 2011-10-20 |
| JP5657533B2 (en) | 2015-01-21 |
| MX2011000275A (en) | 2011-03-02 |
| CA2729959A1 (en) | 2010-01-14 |
| AU2009268391A1 (en) | 2010-01-14 |
| US20100006014A1 (en) | 2010-01-14 |
| CN102089413B (en) | 2013-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration | ||
| FD | Application declared void or lapsed, e.g., due to non-payment of fee |