Low emissions combustion apparatus and method
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-003/20
F02C-003/30
F23R-003/34
F23C-005/00
F23C-007/00
출원번호
UP-0149959
(2005-06-10)
등록번호
US-7788897
(2010-09-27)
발명자
/ 주소
Campbell, Paul Andrew
Hagen, David
출원인 / 주소
Vast Power Portfolio, LLC
대리인 / 주소
Ostrolenk Faber LLP
인용정보
피인용 횟수 :
59인용 특허 :
13
초록▼
Clean combustion and equilibration equipment and methods are provided to progressively deliver, combust and equilibrate mixtures of fuel, oxidant and aqueous diluent in a plurality of combustion regions and in one or more equilibration regions to further progress oxidation of products of incomplete
Clean combustion and equilibration equipment and methods are provided to progressively deliver, combust and equilibrate mixtures of fuel, oxidant and aqueous diluent in a plurality of combustion regions and in one or more equilibration regions to further progress oxidation of products of incomplete combustion, in a manner that sustains combustion while controlling temperatures and residence times sufficiently to reduce CO and NOx emissions to below 25 ppmvd, and preferably to below 3 ppmvd at 15% O2.
대표청구항▼
What is claimed is: 1. A clean combustion system having a combustor with multiplicity of combustor sections, with low emissions of carbon monoxide (CO) and nitrogen oxides (NOx), comprising: an oxidant delivery system to deliver an oxidant fluid comprising an oxidant; a fuel delivery system to deli
What is claimed is: 1. A clean combustion system having a combustor with multiplicity of combustor sections, with low emissions of carbon monoxide (CO) and nitrogen oxides (NOx), comprising: an oxidant delivery system to deliver an oxidant fluid comprising an oxidant; a fuel delivery system to deliver fuel fluid comprising a fuel; a diluent delivery system to deliver a diluent fluid comprising more water or carbon dioxide than in ambient air; a pilot having an inlet to receive one of oxidant fluid, diluent fluid and fuel fluid, and an outlet to deliver a hot pilot fluid; a first combustor section surrounding a first combustion region configured: to receive hot pilot fluid from the pilot; and to deliver, mix, and combust a first diluted fuel-oxidant fluid comprising, oxidant fluid, fuel fluid, and diluent fluid, thereby forming a first combustion fluid; a second combustor section surrounding a second combustion region configured: to receive first combustion fluid from the first combustor section; and to deliver, mix, and combust a second diluted fuel-oxidant fluid comprising, oxidant fluid, fuel fluid, and diluent fluid, thereby forming a second combustion fluid; a first equilibration section having a first equilibration region configured to receive second combustion fluid from the second combustor section to equilibrate the second combustion fluid for a prescribed residence time, thereby forming a hot combustion fluid comprising hot pilot fluid, diluent fluid, products of combustion, and residual oxy-fuel fluid; a system outlet for the hot combustion fluid in fluid communication with the first equilibration section; and a control system configured to: control delivery of pilot fluid, fuel fluid, oxidant fluid, and diluent fluid, wherein the combustion system is configured: to sustain above a combustion boundary: a first fluid temperature within the first combustor section; and a second fluid temperature within the second combustor section; and control at the system outlet: a fluid temperature of the hot combustion fluid below a prescribed temperature limit; and the emissions in the hot combustion fluid, such that, when adjusted to 15% O2, the carbon monoxide (CO) concentration is less than 25 ppmvd; and the nitrogen oxides (NOx) concentration is less than 25 ppmvd. 2. The combustion system of claim 1, wherein the diluent comprises a liquid comprising one of water and carbon dioxide. 3. The combustion system of claim 1, further comprising a diluent recovery system downstream of the equilibration section, wherein a portion of one of the carbon dioxide and the water are recovered from the combustion fluid downstream of the equilibration section is greater than the mass of carbon dioxide and water delivered upstream of the equilibration section outlet respectively. 4. The combustion system of claim 1, wherein one of combustion, a hot surface, an electromagnetic energy source, heats the fluid delivered to the pilot, forming hot pilot fluid. 5. The combustion system of claim 4, wherein the thermal energy provided by one of the hot pilot fluid and the combustion fluid, is necessary to sustain combustion in a downstream combustion region, and wherein said pilot fluid and combustion fluid comprise diluent fluid. 6. The combustion system of claim 1, wherein one or both of fuel fluid and oxidant fluid are premixed with diluent fluid before delivery into one or more of the pilot and said combustion regions. 7. The combustion system of claim 1, wherein the combustor and the control system are configured such that the ratios of water to fuel and air to fuel in the diluted fuel-oxidant fluid delivered to one or more of the pilot and said combustion regions constrain soot formation below a desired level. 8. The combustion system of claim 1, wherein fuel fluid, oxidant fluid and diluent fluid are premixed without sustained combustion before delivery into one of the pilot and said combustion regions. 9. The combustion system of claim 1, wherein the combustor and the control system are configured to deliver diluted fuel-oxidant fluid to one of the first combustion section and the second combustion, wherein the ratio of diluted fuel-oxidant fluid delivered to the combustion section relative to the hot fluid entering that combustion section, is controlled between 0.50 and 1.10 times the critical ratio RCRIT differentiating stable from conditionally stable combustion. 10. The combustion system of claim 1, further comprising a fluid control device downstream of the second combustion section, wherein the fluid control device has one or more orifices configured to deliver one or both of diluent fluid or oxidant fluid. 11. The combustion system of claim 10, configured to deliver oxidant fluid to the second combustion fluid sufficient to change the composition of the hot combustion fluid from rich to lean. 12. The combustion system of claim 1, wherein the first equilibration section is configured to accelerate the hot combustion fluid. 13. The combustion system of claim 1, wherein the combustor and the control system are configured to control the second premix fluid flow to be greater than the first premix fluid flow. 14. The combustion system of claim 13, wherein the cumulative ratio of mass delivery flow rate of diluent fluid to the mass flow rate of fuel entering one of the pilot, the first combustion region and the second combustion region is greater than 3.0. 15. The combustion system of claim 1, wherein the volume concentration of NOx formed within the combustion regions is less than 5 ppmvd at 15% O2. 16. The combustion system of claim 15, wherein the residence time of the combustion fluid from the system inlet to the system outlet is less than 1 second. 17. The combustion system of claim 1, wherein the volume concentration of residual CO in the hot combustion fluid at the system outlet is less than 5 ppmvd at 15% O2. 18. The combustion system of claim 17, wherein the residence time of the combustion fluid from the system inlet to the system outlet is less than 100 milliseconds. 19. The combustion system of claim 1, wherein the temperature of the hot combustion fluid is less than about 1250° C. as it exits the equilibration section. 20. The combustion system of claim 1, further comprising an expander downstream of the first equilibration section, wherein the temperature of the hot combustion fluid entering the expander is greater than 950° C., and the temperature exiting the expander is less than 1400° C. 21. The combustion system of claim 20, further comprising a second equilibration section downstream of the expander configured to provide a residence time of greater than 0.5 ms. 22. The combustion system of claim 1, wherein the residence time of the combustion fluid from the system inlet to the system outlet is less than 10 milliseconds. 23. The combustion system of claim 1, further comprising a heat recovery system to recover heat from hot combustion fluid downstream of the equilibration section to heat diluent, and configured to deliver a portion of heated diluent to one of the pilot, the first or second combustor section, the equilibration section, and a user heat application. 24. The combustion system of claim 23, further comprising an expander downstream of the first equilibration section and upstream of the heat recovery system, to extract work from the hot combustion fluid, and comprising a diluent recovery system downstream of the heat recovery system, configured to recover more diluent than is delivered upstream of the expander, and wherein the cooled expanded fluid comprises less than 120 mg/GJ shaft work for each of NOx and CO. 25. The combustion system of claim 10, wherein the combustor and the control system are configured to deliver aqueous diluent to reduce the carbon monoxide emissions in the hot combustion fluid.
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Toon, Ian J.; O'Dell, Stephen J.; Currin, John H.; Willis, Jeffrey D., Staged gas turbine combustion chamber with counter swirling arrays of radial vanes having interjacent fuel injection.
Moreno Frederick E. (Los Altos CA) Joshi Narendra D. (Phoenix AZ), Staged lean premix low nox hot wall gas turbine combustor with improved turndown capability.
Roberts Richard (Marlborough CT) Vranos Alexander (Rockville CT) Schlein Barry C. (Wethersfield CT) Rummel David H. (Manchester CT), Two-stage premixed combustor.
Minta, Moses; Mittricker, Franklin F.; Rasmussen, Peter C.; Starcher, Loren K.; Rasmussen, Chad C.; Wilkins, James T.; Meidel, Jr., Richard W., Low emission power generation and hydrocarbon recovery systems and methods.
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Mittricker, Franklin F.; Starcher, Loren K.; Rasmussen, Chad C.; Huntington, Richard A.; Hershkowitz, Frank, Methods and systems for controlling the products of combustion.
Mittricker, Franklin F.; Huntington, Richard A.; Starcher, Loren K.; Sites, Omar Angus, Methods of varying low emission turbine gas recycle circuits and systems and apparatus related thereto.
Wichmann, Lisa Anne; Simpson, Stanley Frank, Methods, systems and apparatus relating to combustion turbine power plants with exhaust gas recirculation.
Huntington, Richard A.; Denton, Robert D.; McMahon, Patrick D.; Bohra, Lalit K.; Dickson, Jasper L., Processing exhaust for use in enhanced oil recovery.
Stoia, Lucas John; DiCintio, Richard Martin; Melton, Patrick Benedict; Romig, Bryan Wesley; Slobodyanskiy, Ilya Aleksandrovich, System and method for a multi-wall turbine combustor.
Huntington, Richard A.; Minto, Karl Dean; Xu, Bin; Thatcher, Jonathan Carl; Vorel, Aaron Lavene, System and method for a stoichiometric exhaust gas recirculation gas turbine system.
Valeev, Almaz Kamilevich; Ginesin, Leonid Yul'evich; Shershnyov, Borys Borysovich; Sidko, Igor Petrovich; Meshkov, Sergey Anatolievich, System and method for a turbine combustor.
Slobodyanskiy, Ilya Aleksandrovich; Davis, Jr., Lewis Berkley; Minto, Karl Dean, System and method for barrier in passage of combustor of gas turbine engine with exhaust gas recirculation.
Minto, Karl Dean; Slobodyanskiy, Ilya Aleksandrovich; Davis, Jr., Lewis Berkley; Lipinski, John Joseph, System and method for controlling the combustion process in a gas turbine operating with exhaust gas recirculation.
Huntington, Richard A.; Dhanuka, Sulabh K.; Slobodyanskiy, Ilya Aleksandrovich, System and method for diffusion combustion in a stoichiometric exhaust gas recirculation gas turbine system.
Huntington, Richard A.; Dhanuka, Sulabh K.; Slobodyanskiy, Ilya Aleksandrovich, System and method for diffusion combustion with fuel-diluent mixing in a stoichiometric exhaust gas recirculation gas turbine system.
Huntington, Richard A.; Dhanuka, Sulabh K.; Slobodyanskiy, Ilya Aleksandrovich, System and method for diffusion combustion with oxidant-diluent mixing in a stoichiometric exhaust gas recirculation gas turbine system.
Subramaniyan, Moorthi; Hansen, Christian Michael; Huntington, Richard A.; Denman, Todd Franklin, System and method for exhausting combustion gases from gas turbine engines.
Huntington, Richard A.; Dhanuka, Sulabh K.; Slobodyanskiy, Ilya Aleksandrovich, System and method for load control with diffusion combustion in a stoichiometric exhaust gas recirculation gas turbine system.
Huntington, Richard A.; Mittricker, Franklin F.; Starcher, Loren K.; Dhanuka, Sulabh K.; O'Dea, Dennis M.; Draper, Samuel D.; Hansen, Christian M.; Denman, Todd; West, James A., System and method for oxidant compression in a stoichiometric exhaust gas recirculation gas turbine system.
Biyani, Pramod K.; Leyers, Scott Walter; Miranda, Carlos Miguel, System and method for protecting components in a gas turbine engine with exhaust gas recirculation.
Biyani, Pramod K.; Saha, Rajarshi; Dasoji, Anil Kumar; Huntington, Richard A.; Mittricker, Franklin F., System and method for protecting components in a gas turbine engine with exhaust gas recirculation.
O'Dea, Dennis M.; Minto, Karl Dean; Huntington, Richard A.; Dhanuka, Sulabh K.; Mittricker, Franklin F., System and method of control for a gas turbine engine.
Oelfke, Russell H.; Huntington, Richard A.; Dhanuka, Sulabh K.; O'Dea, Dennis M.; Denton, Robert D.; Sites, O. Angus; Mittricker, Franklin F., Systems and methods for carbon dioxide capture in low emission combined turbine systems.
Thatcher, Jonathan Carl; West, James A.; Vorel, Aaron Lavene, Systems and methods for controlling exhaust gas flow in exhaust gas recirculation gas turbine systems.
Mittricker, Franklin F.; Huntington, Richard A.; Dhanuka, Sulabh K.; Sites, Omar Angus, Systems and methods for controlling stoichiometric combustion in low emission turbine systems.
Borchert, Bradford David; Trout, Jesse Edwin; Simmons, Scott Robert; Valeev, Almaz; Slobodyanskiy, Ilya Aleksandrovich; Sidko, Igor Petrovich; Ginesin, Leonid Yul'evich, Systems and methods for high volumetric oxidant flow in gas turbine engine with exhaust gas recirculation.
Vorel, Aaron Lavene; Thatcher, Jonathan Carl, Systems and methods of estimating a combustion equivalence ratio in a gas turbine with exhaust gas recirculation.
Thatcher, Jonathan Carl; Slobodyanskiy, Ilya Aleksandrovich; Vorel, Aaron Lavene, Systems and methods to respond to grid overfrequency events for a stoichiometric exhaust recirculation gas turbine.
Allen, Jonathan Kay; Borchert, Bradford David; Trout, Jesse Edwin; Slobodyanskiy, Ilya Aleksandrovich; Valeev, Almaz; Sidko, Igor Petrovich; Subbota, Andrey Pavlovich, Turbine system with exhaust gas recirculation, separation and extraction.
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