[특허]Apparatus and method for oxy-combustion of fuels in internal combustion engines

Apparatus and method for oxy-combustion of fuels in internal combustion engines 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02B-077/00 B01D-053/22 F02M-025/12 C01B-013/02 F02B-047/10 F02B-077/02 F02B-037/00 B01D-053/047
출원번호	US-0804291 (2013-03-14)
등록번호	US-9488100 (2016-11-08)
발명자 / 주소	Hamad, Esam Zaki Al-Sadat, Wajdi Issam
출원인 / 주소	Saudi Arabian Oil Company
대리인 / 주소	Abelman, Frayne & Schwab
인용정보	피인용 횟수 : 0 인용 특허 : 29

초록 ▼

A method and apparatus for the oxy-combustion of fuel in an internal combustion engine (ICE) used to power a vehicle converts the free energy available onboard the vehicle in the form of waste heat from the engine exhaust gas stream and coolant system into electrical and/or mechanical energy which energy is used to separate oxygen from air to eliminate or significantly reduce the volume of nitrogen entering the ICE's combustion chamber, and thereby reduce NOx pollutants released into the atmosphere and increase the concentration of CO2 in the engine exhaust stream for capture using an integrated system to compress and increase the density of the captured CO2 for temporary on-board storage until it is discharged at a recovery station, e.g., during vehicle refueling.

대표청구항 ▼

1. An internal combustion engine (ICE) producing an exhaust gas stream having reduced nitrogen and NOx emissions from the combustion of a fuel with an oxygen-enriched atmospheric air stream from which nitrogen has been separated, the ICE having an engine block with a plurality of cylinders having walls forming combustion chambers and one or more channels in fluid communication with the cylinders for delivering the oxygen-enriched air for combustion of the fuel,the improvement comprising: one or more air separation devices integrated with the operation of the ICE and in fluid communication with the engine's air intake and the combustion chambers, the one or more air separation devices being adapted and configured to separate oxygen molecules from the atmospheric air to mix with the fuel and to return nitrogen molecules to the atmosphere, and wherein the one or more air separation devices are membranes and the membranes are positioned in the wall of one or more of the plurality of cylinders, the one or more membranes providing fluid communication for oxygen molecules to pass from the air channels into the combustion chamber. 2. The internal combustion engine of claim 1 in which at least one membrane is positioned in the wall of each of the plurality of cylinders. 3. The ICE of claim 1 which the one or more membranes are displaced away from the zone of maximum pressure created during the respective compression and expansion strokes in the one or more cylinders. 4. The ICE of claim 1 in which at least a portion of the channels are in the form of a manifold and one or more oxygen separation devices are positioned in the manifold. 5. The ICE of claim 4 in which there are a plurality of oxygen separation devices and the devices are positioned in series and the proportional oxygen content of the gas stream is greater downstream of each of the separation devices in the series. 6. The ICE of claim 1 in which the oxygen separation devices are ceramic membranes. 7. The ICE of claim 6 in which the membranes are maintained at a temperature of about 800° F. by heat exchange with hot exhaust gases from the engine. 8. The ICE of claim 1 in which the membrane is a solid ceramic electrolyte with porous electrodes that are oxygen permeable and the solid electrolyte passes oxygen ions under an electrical potential. 9. The ICE of claim 1 in which a portion of the exhaust gas stream from the ICE is recycled and mixed with the intake air. 10. The ICE of claim 1 which includes a turbo-supercharger powered by the exhaust gas stream and in fluid communication with the atmospheric air to pressurize the air upstream of the one or more separation devices. 11. The ICE of claim 1 in which the membrane restricts the passage of nitrogen, NOx and CO2 from the combustion chamber. 12. The ICE of claim 6 in which the ceramic membrane material is a perovskite type ceramic and releases retained oxygen in response to an increase in temperature. 13. The ICE of claim 4 in which the one or more oxygen separation devices comprise two or more fixed beds containing an adsorbent material that releasably adsorbs oxygen from the air and passes the non-adsorbed gases for discharge into the atmosphere, each of the beds having an inlet for receiving an oxygen-depleted purge gas to release the adsorbed oxygen and an outlet in fluid communication with one or more of the plurality of cylinders for conveying the oxygen-enriched gas stream to mix with the fuel. 14. The ICE of claims 13 in which the purge gas is a portion of the hot exhaust gas from the ICE. 15. The ICE of claim 13 that operates in conjunction with an engine management system having a processor/controller operative linked to at least one oxygen sensor located in the oxygen-depleted gas stream outlet of each of the two or more fixed beds, at least one valve associated with the inlet and outlet of each bed and controlled by the processor controller in response to the amount of oxygen in the oxygen-depleted gas stream to divert air from one bed to at least one other bed and to admit the purge gas to release the adsorbed oxygen for discharge from the bed outlet as the oxygen-enriched stream. 16. The ICE of claim 1 in which the engine's air intake manifold includes a valve operable in response to the engine's performance to open and admit atmospheric air when the engine's requirements for oxygen cannot be met by oxygen passing through the one or more air separation devices. 17. The ICE of claim 13 in which the one or more air separation devices are pressure swing adsorption nitrogen generators. 18. The ICE of claim 13 in which the one or more air separation devices are vacuum swing adsorption systems. 19. The ICE of claim 13 in which the one or more air separation devices are hybrid vacuum-pressure swing adsorption systems. 20. The ICE of claim 1 in which the CO2 from the exhaust stream is captured and undergoes a densification process for temporary storage on board a vehicle powered by the ICE.

이 특허에 인용된 특허 (29)

Nemser Stuart M. (Wilmington DE), Air-intake system for mobile engines.
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Easley, Jr.,William Lanier; Coleman,Gerald Nelson; Robel,Wade James, Ammonia producing engine utilizing oxygen separation.
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Dieterich Klaus,DEX ; Blankenhorn Wolfgang,DEX, Apparatus and method for reducing harmful substances in combustion gases.
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Joshi Ashok V. (Salt Lake City UT) Syammach Mustafa B. (Salt Lake City UT) Campbell Scott S. (West Valley City UT), Ceramic solid electrolyte based electrochemical oxygen concentrator cell.
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Viteri Fermin (Sacramento CA), Clean air engines transportation and other power applications.
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Nemser Stuart Marshall ; Callaghan Kevin Patrick ; Reppert Todd Colin, Combustion engine air supply system.
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Kreikemeier, Michael L; Beauregard, Chad D, Fuel injection system method and apparatus using oxygen sensor signal conditioning to modify air/fuel ratio.
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Fermin Viteri ; James P. Taylor ; Harry Brandt ; Roger E. Anderson, Hydrocarbon combustion power generation system with CO2 sequestration.
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Viteri Fermin ; Taylor James P. ; Brandt Harry ; Anderson Roger E., Hydrocarbon combustion power generation system with CO2 sequestration.
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Viteri, Fermin; Taylor, James P.; Brandt, Harry; Anderson, Roger E., Hydrocarbon combustion power generation system with CO2 sequestration.
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Viteri,Fermin; Taylor,James P.; Brandt,Harry; Anderson,Roger E., Hydrocarbon combustion power generation system with CO2 sequestration.
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Lindner,Friederike; Eisele,Ulrich; Ahmed,Jasim; Kojic,Aleksandar; Hathout,Jean Pierre, Ignition system of an internal combustion engine.
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Binion W. Sidney, In-cylinder water injection engine.
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Kang Doohee (Macungie PA) Srinivasan Rajagopalan S. (Allentown PA) Thorogood Robert M. (Cary NC) Foster Edward P. (Wescosville PA), Integrated high temperature method for oxygen production.
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Donauer, Georg; Schneemann, Arne; Speetzen, Ralf, Internal combustion engine.
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Gaertner,Uwe; Koch,Thomas, Internal combustion engine with an air separator and methods for realizing such an internal combustion engine.
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Poola Ramesh B. (Woodridge IL) Sekar Ramanujam R. (Naperville IL) Stork Kevin C. (Chicago IL), Method and apparatus for reducing cold-phase emissions by utilizing oxygen-enriched intake air.
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Arthur J. Jacobsen, Method and apparatus for reducing oxides of nitrogen in the exhaust gas of an internal combustion engine.
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Poola Ramesh B. ; Sekar Ramanujam R., Method and apparatus for reducing particulates and NO.sub.X emissions from diesel engines utilizing oxygen enriched combustion air.
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Renlund Gary M. (Salt Lake City UT) Mackerell Richard R. (Salt Lake City UT) Syammach Mustafa A. (Salt Lake City UT), Method and apparatus for separating oxygen from a gaseous mixture.
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Beckmann, Markus, Method for operating an internal combustion engine of a vehicle, especially a motor vehicle, and device for implementing said method.
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Fan, Zhen; Seltzer, Andrew, Method of and apparatus for CO.
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Poola Ramesh B. ; Sekar Ramanujam R., Method to reduce diesel engine exhaust emissions.
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Drnevich Raymond Francis ; Shah Minish Mahendra ; Gottzmann Christian Friedrich, Oxygen separator designed to be integrated with a gas turbine and method of separating oxygen.
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Renlund Gary M. (2094 E. Worchester Dr. Salt Lake City UT 84121) Syammach Mustafa A. (1156 E. Browning Ave. Salt Lake City UT 84105) Mackerell Richard R. (8150 S. Stonehill La. Salt Lake City UT 8412, Oxygen supply and removal method and apparatus.
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Botti, Jean Joseph; Grieve, Malcolm James; Miller, Carl Elmer, Power generation system and method.
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Botti,Jean Joseph; Grieve,Malcolm James; Miller,Carl Elmer, Power generation system and method.
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McNeill John M. (14021 Marquesas Way Marina Del Rey CA 90292), Production of membrane-derived nitrogen from combustion gases.
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Primlani, Indru J., System and method of waste heat recovery and utilization.
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