WO2018208165A1 - Récupération d'eau et d'énergie de gaz d'échappement - Google Patents

Récupération d'eau et d'énergie de gaz d'échappement Download PDF

Info

Publication number
WO2018208165A1
WO2018208165A1 PCT/NO2017/050112 NO2017050112W WO2018208165A1 WO 2018208165 A1 WO2018208165 A1 WO 2018208165A1 NO 2017050112 W NO2017050112 W NO 2017050112W WO 2018208165 A1 WO2018208165 A1 WO 2018208165A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
water
engine
turbine
compressor
Prior art date
Application number
PCT/NO2017/050112
Other languages
English (en)
Inventor
Harald Underbakke
Jon Jakobsen
Tord URSIN
Original Assignee
Equinor Energy As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Equinor Energy As filed Critical Equinor Energy As
Priority to PCT/NO2017/050112 priority Critical patent/WO2018208165A1/fr
Publication of WO2018208165A1 publication Critical patent/WO2018208165A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
    • F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/26—Drying gases or vapours
    • B01D53/265—Drying gases or vapours by refrigeration (condensation)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/005—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for draining or otherwise eliminating condensates or moisture accumulating in the apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12—Cooling of plants
    • F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

Definitions

  • the present invention relates to the processing of exhaust gas from an engine, and particularly to the recovery of energy and/or water from the exhaust gas.
  • a gas turbine engine is a type of internal combustion engine. It comprises an upstream rotating compressor coupled to a downstream turbine, with a combustion chamber or combustor located in between the compressor and turbine.
  • gases undergo four thermodynamic processes: isentropic compression, isobaric combustion, isentropic expansion, and heat rejection.
  • the exhaust gas from the gas turbine engine is simply vented to atmosphere.
  • the present invention seeks to provide improved processing of the exhaust gas to provide useful outputs.
  • the present invention provides a method of processing exhaust gas from an engine, comprising: reducing the pressure of the exhaust gas; cooling the reduced-pressure exhaust gas; separating condensed water from the cooled exhaust gas to produce a water stream and a dried exhaust gas; and compressing the dried exhaust gas.
  • this method permits extraction of further energy from the gases because more energy is extracted from expansion of the hot gas than is required to compress the gas once cooled.
  • This processing extracts energy from the gas using the same effect as is applied in the gas turbine engine (where gas is compressed, heated and then expanded) but in reverse.
  • an additional Brayton cycle is added to the normal cycle of the engine.
  • the present invention effectively extends the range of the Brayton cycle of the gas turbine engine by expanding the gases to below the exhaust pressure before performing at least part of the heat rejection stage.
  • more energy is extracted from the exhaust gas, thereby increasing the fuel efficiency of the gas turbine engine.
  • the described method also further permits extraction of water from the exhaust gas.
  • combustion produces significant quantities of water (as steam due to the temperature).
  • this steam is often simply vented to atmosphere because it is not worthwhile to extract it from the exhaust gas.
  • the exhaust gases are first cooled by expansion and then further cooled by the cooling stage. This combined cooling effect is sufficient to condense a significant quantity of the steam from the exhaust gas, which may then be separated from the exhaust gas to be used elsewhere in the turbine system or for external use.
  • the engine is a gas turbine engine. Whilst it will be appreciated that the described technique is applicable to other types of engines, gas turbine engines in particular produce very hot exhaust gas that is well suited to generation of additional power in the described manner.
  • the pressure of the gas is reduced using a turbine.
  • the turbine is arranged to drive a power shaft.
  • the power shaft may be coupled to a generator and/or coupled to a power shaft of the engine. Hence, power is extracted from the expansion of the exhaust gas.
  • the pressure of the exhaust gas is reduced by at least 30%, and preferably between 50% and 70%.
  • the pressure of the exhaust gas may be reduced from approximately atmospheric pressure (e.g. an absolute pressure of 0.8 bar to 1.2 bar) and/or may be reduced to an absolute pressure of below 0.7 bar, and preferably to an absolute pressure of below 0.5 bar and/or above 0.3 bar.
  • the dried exhaust gas is compressed using a compressor.
  • the compressor may be driven by the power extracted by the turbine.
  • the turbine may be coupled to the compressor.
  • the turbine and/or compressor may be arranged on the same shaft as the host engineto even further simplify the system.
  • the exhaust gas may be cooled using an energy recovery system arranged to extract power from the residual heat of the exhaust gas.
  • energy recovery system may be a heat recovery steam generator or a thermoelectric generator.
  • the exhaust gas may be cooled by heat exchange with an ambient fluid, such as ambient air or sea water.
  • the exhaust gas may be cooled using a refrigeration system or the like.
  • the exhaust gas may be used before the cooling to heat at least part of the water stream.
  • heating the water stream may cause the water stream to vaporise to produce steam.
  • the cooled water may be used to partially cool the gas stream. This may be advantageous where the temperature of the water does not affect its subsequent use and/or where steam is required.
  • the exhaust gas is cooled to a temperature below a water dew point of the gas (e.g. below about 75°C at 0.4 bar), and more preferably below about 50°C.
  • the exhaust gas may be cooled to a temperature between 15° and 35°C, and preferably between 20°C and 30°C.
  • the temperature is not reduced below 0°C so as to prevent the water from freezing.
  • the separating may comprise centrifugally separating the water from the exhaust gas. This is can be beneficial in terms of space/weight savings. However, it will be appreciated that other forms of separation may be used as appropriate.
  • the separation may separate only relatively large droplets and may allow relatively small droplets to be carried through the compressor. This will advantageously reduce the compression power required because, although a higher pressure drop results in smaller droplets, it will also require more pumping power.
  • the water may be subject to one or more water treatment processes, e.g. to remove impurities.
  • the one or more water treatment processes may include one or more of aeration, coagulation, sedimentation, filtration, desalination and acidity regulation.
  • the water stream may be used for various purposes within the engine system or externally of the system.
  • the respective part of the water stream may be pressurised as required for the respective purpose.
  • At least part of the water stream may be supplied to a combustion chamber of the engine generating the exhaust gas.
  • the part of the water stream may be vaporised to steam before supply to the combustor, as discussed above. It is known that injecting a small quantity of steam into the combustion chamber of an engine can improve the fuel efficiency of the engine and reduced the NOx emissions of the engine. This technique therefore provides a ready supply of water for this application.
  • At least part of the water stream may be mixed with the exhaust gas before reducing its pressure.
  • the part of the water stream may be vaporised to steam before mixing with the exhaust gas, as discussed above, such that the exhaust gas does not need to vaporise the water.
  • the injected steam can be expanded together with the exhaust gas to increase the efficiency of the energy extraction.
  • At least part of the water stream may be reintroduced into the exhaust gas before or during compression.
  • the water may be used to perform water washing of the exhaust gas to reduce compressor fouling.
  • the part of the water stream has been processed as discussed above, thereby reducing impurities in the water.
  • At least part of the water stream may be injected into upstream or into a compressor of the engine.
  • the water may be used to perform water washing of the inlet gas to reduce compressor fouling.
  • the part of the water stream has been processed as discussed above, thereby reducing impurities in the water.
  • At least part of the water may be supplied to a separate system, for example an adjacent engine.
  • the present invention provides a system, comprising: an engine that produces exhaust gas; a turbine for expanding the exhaust gas; at least one cooler for cooling the expanded exhaust gas; a separator for separating condensed liquid from the cooled exhaust gas; and a compressor for compressing the dried exhaust gas.
  • the engine is a gas turbine engine.
  • the turbine is preferably arranged to drive a power shaft.
  • the power shaft may be coupled to a power shaft of the engine.
  • the system may comprise a generator, wherein the power shaft is coupled to the generator.
  • the turbine is preferably arranged to reduce the pressure of the exhaust gas by at least 30%, and preferably between 50% and 70%.
  • the turbine may reduce the pressure of exhaust gas at approximately atmospheric pressure (e.g. an absolute pressure of 0.8 bar to 1.2 bar) to an intermediate pressure of below 0.7 bar, and preferably to an intermediate pressure of between 0.5 bar and 0.3 bar.
  • the compressor is preferably configured to be driven by the power extracted by the turbine.
  • the turbine may be coupled to the compressor.
  • At least one of the at least one cooler may be coupled to an energy recovery system arranged to extract power from the residual heat of the exhaust gas.
  • the energy recovery system may be a heat recovery steam generator or a
  • thermoelectric generator thermoelectric generator
  • the at least one cooler may comprise a heat exchanger for heat exchange with an ambient fluid, such as ambient air or sea water.
  • the heat exchanger may be a direct contact heat exchanger. That is to say, the cooling fluid may be sprayed directly into the exhaust gas.
  • the cooling fluid may be cooling water and the cooling water may be separated from the cooled exhaust gas at the same time as the condensed water.
  • the system may comprise a refrigeration system coupled to the heat exchanger.
  • the at least one cooler may comprise a water heater upstream of the at least one cooler.
  • the water heater may be configured to heat at least part of the water stream by heat exchange with the exhaust gas.
  • the heat exchange with the water stream may cause the water stream to vaporise to produce steam.
  • the at least one cooler is preferably sized so as to permit the exhaust gas to be cooled to a temperature below its water dew point, more preferably below about 50°C.
  • the exhaust gas may be cooled to a temperature between 15° and 35°C, and preferably between 20°C and 30°C.
  • the separator may comprise a centrifugal separator.
  • the separator may optionally be integrated with at least one of the at least one cooler.
  • the system may comprise one or more water treatment processing stages for processing the water stream from the separator, e.g. to remove impurities.
  • the one or more water treatment processing stages may be arranged to perform one or more of aeration, coagulation, sedimentation, filtration, desalination and acidity regulation.
  • the system may be arranged to supply the water stream for various purposes within the system or externally of the system.
  • the system may include on more pump arranged to pressurise the respective part of the water stream as required for the respective purpose.
  • the system may be arranged to supply at least part of the water stream to a combustion chamber of the engine.
  • the part of the water stream may be vaporised to steam before supply to the combustor.
  • the system may be arranged to supply at least part of the water stream to be mixed with the exhaust gas upstream of the turbine.
  • the part of the water stream may be vaporised to steam before mixing with the exhaust gas, as discussed above, such that the exhaust gas does not need to vaporise the water.
  • the system may be arranged to reintroduced at least part of the water stream into the exhaust gas upstream of the compressor and/or inside the compressor.
  • the part of the water stream has been processed as discussed above, thereby reducing impurities in the water.
  • the system may be arranged to supply at least part of the water to a separate system, for example an adjacent engine.
  • Figure 1 illustrates a system for extracting power and water from the exhaust gas of a gas turbine
  • Figure 2 illustrates the system in combination with the gas turbine.
  • Figure 1 illustrates a system 2 for extracting power and water from the exhaust gas 4 of a gas turbine 6.
  • the exhaust gas 4 is received from the gas turbine engine 6 at
  • the exhaust gas 4 is then supplied to a turbine 8, which extracts energy from the exhaust gas by expanding it.
  • the turbine 8 has an output shaft that is coupled to a generator 10, which converts the kinetic energy of the turbine 8 into electrical energy.
  • the energy of the turbine 8 may be used in other ways.
  • the output shaft of the turbine 8 could be coupled to the shaft of the gas turbine engine 6, directly or via a gearing
  • the output shaft may be connected to a gearbox to drive other components of the system.
  • the turbine 8 is also coupled to a compressor 12, as will be described in more detail later.
  • the turbine 8 expands the exhaust gas 4 from approximately atmospheric pressure to provide a reduced-pressure exhaust gas 14 a pressure of between about 0.3 bar and about 0.5 bar, such as about 0.4 bar.
  • the reduced-pressure exhaust gas 14 has a temperature of about 380°C.
  • the cycle intermediate pressure can be anywhere between vacuum and gas turbine exhaust pressure, which can be above atmospheric pressure.
  • An optional steam boiler 16 may be used to vaporise water using the heat from the reduced-pressure exhaust gas 14 to produce steam 17. This may slightly cool the reduced pressure exhaust gas 14, but does not significantly reduce the temperature of the exhaust gas 14. In other embodiments, the steam boiler 16 may be used to vaporise water to drive a heat recovery steam generator (not shown) in which the steam drives a turbine to extract energy from the heat of the reduced pressure exhaust gas 14.
  • the reduced-pressure exhaust gas 14 is supplied to a condenser 18.
  • the condenser 18 may for example use sea water at a temperature of about 10 degrees to cool the reduced pressure exhaust gas 14.
  • the condenser 18 may be wholly or partly a direct contact type using water spray nozzles.
  • the condenser 18 in this embodiment cools the reduced pressure exhaust gas 14 to a temperature of about 30°C.
  • the condenser 18 As the reduced-pressure exhaust gas is cooled by the condenser 18, water generated in the combustion process will condense.
  • This condenser 18 is configured to incorporate or act as a separator and comprises a drain to extract the liquid phase water 20, resulting in a dried reduced-pressure exhaust gas 22 having a temperature of about 30°C and a reduced water content.
  • the water/exhaust gas separator may be of centrifugal type, either static or rotating.
  • the dried reduced- pressure exhaust gas 22 is finally supplied to the compressor 12, which compresses the dried reduced-pressure exhaust gas 22 back to atmospheric pressure.
  • the atmospheric-pressure dried exhaust gas 24 is then vented from the system 2, for example to atmosphere.
  • the compression increases the temperature of the exhaust gas such that the atmospheric-pressure dried exhaust gas 24 is vented from the system 2 at a temperature of about 100°C.
  • the compressor 12 is driven by the turbine 8.
  • the compressor consumes approximately 55% of the power extracted by the turbine 8, whilst the remaining power can be converted to useful electric power by the generator 10.
  • the power output may be further increased if a heat recovery steam generator is used as discussed above.
  • the system 2 can extract around 4 MW power from the exhaust of a General Electric ® LM2500 base engine (22 MW) when the system 2 operates at an intermediate pressure of around 0.4 bar.
  • a General Electric ® LM2500 base engine 22 MW
  • an additional 2 MW can be extracted without adding extra fuel. If additional power is not required in the gas turbine, the steam injected can reduce fuel consumption accordingly.
  • the proposed system 2 thus takes exhaust gas 4 from the gas turbine engine 6 (or another combustion engine) at close to atmospheric pressure, expands it to a pressure level below atmospheric, cools it and then recompresses to atmospheric pressure for disposal to surrounding air.
  • This part of the cycle is a variant of the commonly used Brayton cycle.
  • the new concept further provides water production as a result of cooling the exhaust gas 4 to below its water dewpoint to allow condensing and collecting of the water from the combustion products.
  • This water can be used to further augment the cycle by injecting the water in the host engine 6 and/or to produce steam by a steam boiler 16 located at the outlet of the turbine 8 (alternatively the steam boiler 16 may use the exhaust gas 4 of the engine 6 or the the dried exhaust gas 24 from the system 2).
  • the produced steam or water can be used for many purposes, as will be described below.
  • Figure 2 illustrates the energy and water extraction system 2 in combination with the gas turbine engine 6, including a compression stage 26, a combustion stage 28 and a turbine stage 30.
  • the gas turbine engine 6 including a compression stage 26, a combustion stage 28 and a turbine stage 30.
  • the produced/recovered water 20 can be utilized in the following ways as illustrated in Figure 2.
  • the stream of water may be subject to one or more water processing stages 32, 34 and may be pressurised using a pump 36 to provide sufficiently pure water at the required pressure for use within the engine system.
  • the water processing stages 32, 34 and the pump 36 may be used in any order and may optionally provide multiple outputs for different uses, such as having been refined to different standards and/or pressurised to different pressures.
  • a part of the purified and pressurised water may be supplied to the steam boiler 16 so as to generate steam 17, which may be advantageous for various applications.
  • Exemplary applications for the water 20 and/or steam 17 include the following.
  • the steam 17 may be injected in the combustor 28 of the host gas turbine engine 6 to increase cycle efficiency and power output and to reduce NOx emissions.
  • the steam 17 may be injected into the exhaust gas 4 upstream of the turbine 8 of the energy and water extraction system 2 to increase cycle efficiency and power output of the energy and water extraction system 2.
  • the steam 17 may be used outside of the combined system, for
  • the water 20 may be injected into the combustor 28 of the host gas turbine engine 6 to increase cycle efficiency and power output and to reduce NOx emissions
  • the water 20 may be used outside of the combined system, for
  • the water 20 may be injected into the compressor 12 or upstream of a compressor inlet of the host gas turbine 6 to increase power and cycle efficiency.
  • the water can also have an online water washing effect to improve power and efficiency due to reduced compressor fouling.
  • VI 11. The water 20 may be injected into the compressor 26 or upstream of a compressor inlet of the water extraction system 2. to increase power and cycle efficiency.
  • the water can also have an online water washing effect to improve power and efficiency due to reduced compressor fouling.
  • Options I through VI II can be applied independently or in combination.
  • surplus fresh water can be drawn from the system 2 for other plant use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Un système (2) pour extraire de l'énergie et de l'eau à partir du gaz d'échappement (4) d'un moteur (6) comprend une turbine (8) pour réduire la pression du gaz d'échappement (4), un condenseur (18) pour refroidir le gaz d'échappement à pression réduite (14) au-dessous de son point de rosée de l'eau et séparer l'eau condensée (20) du gaz d'échappement (14), et un compresseur (12) pour comprimer le gaz d'échappement séché (22). Éventuellement, l'eau (20) peut être vaporisée dans une chaudière (16) par échange de chaleur avec le gaz d'échappement (14) en amont du condenseur (18). L'eau (20) peut être utilisée pour améliorer l'efficacité du moteur (6) par injection dans un compresseur (26) ou une chambre de combustion (28) du moteur (6), ou pour améliorer l'efficacité du système d'extraction d'énergie et d'eau (2) par injection dans le compresseur (8) ou la turbine (12) du système (2).
PCT/NO2017/050112 2017-05-08 2017-05-08 Récupération d'eau et d'énergie de gaz d'échappement WO2018208165A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/NO2017/050112 WO2018208165A1 (fr) 2017-05-08 2017-05-08 Récupération d'eau et d'énergie de gaz d'échappement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/NO2017/050112 WO2018208165A1 (fr) 2017-05-08 2017-05-08 Récupération d'eau et d'énergie de gaz d'échappement

Publications (1)

Publication Number Publication Date
WO2018208165A1 true WO2018208165A1 (fr) 2018-11-15

Family

ID=64105558

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2017/050112 WO2018208165A1 (fr) 2017-05-08 2017-05-08 Récupération d'eau et d'énergie de gaz d'échappement

Country Status (1)

Country Link
WO (1) WO2018208165A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010029732A1 (en) * 2000-01-13 2001-10-18 Rolf Bachmann Process for the recovery of water from the flue gas of a combined cycle power station, and combined cycle power station for performing the process
US20010052228A1 (en) * 1998-09-25 2001-12-20 Anatoly Rakhmailov Method of operation of gas turbine engine
US20020023423A1 (en) * 2000-05-12 2002-02-28 Fermin Viteri Semi-closed brayton cycle gas turbine power systems
US20060272331A1 (en) * 2003-12-23 2006-12-07 Alstom Technology Ltd Thermal power plant with sequential combustion and reduced-CO2 emission, and a method for operating a plant of this type
US20080104958A1 (en) * 2006-11-07 2008-05-08 General Electric Company Power plants that utilize gas turbines for power generation and processes for lowering co2 emissions
US20140007590A1 (en) * 2011-03-22 2014-01-09 Richard A. Huntington Systems and Methods For Carbon Dioxide Capture In Low Emission Turbine Systems
US20140250945A1 (en) * 2013-03-08 2014-09-11 Richard A. Huntington Carbon Dioxide Recovery

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010052228A1 (en) * 1998-09-25 2001-12-20 Anatoly Rakhmailov Method of operation of gas turbine engine
US20010029732A1 (en) * 2000-01-13 2001-10-18 Rolf Bachmann Process for the recovery of water from the flue gas of a combined cycle power station, and combined cycle power station for performing the process
US20020023423A1 (en) * 2000-05-12 2002-02-28 Fermin Viteri Semi-closed brayton cycle gas turbine power systems
US20060272331A1 (en) * 2003-12-23 2006-12-07 Alstom Technology Ltd Thermal power plant with sequential combustion and reduced-CO2 emission, and a method for operating a plant of this type
US20080104958A1 (en) * 2006-11-07 2008-05-08 General Electric Company Power plants that utilize gas turbines for power generation and processes for lowering co2 emissions
US20140007590A1 (en) * 2011-03-22 2014-01-09 Richard A. Huntington Systems and Methods For Carbon Dioxide Capture In Low Emission Turbine Systems
US20140250945A1 (en) * 2013-03-08 2014-09-11 Richard A. Huntington Carbon Dioxide Recovery

Similar Documents

Publication Publication Date Title
CN108368750B (zh) 使用嵌入式co2循环发电的系统和方法
EP2240675B1 (fr) Centrale electrique a cycle combine a faible emission de carbone et procede
US6178735B1 (en) Combined cycle power plant
US6449954B2 (en) Process and apparatus for the recovery of water from the flue gas of a combined cycle power station
US8286431B2 (en) Combined cycle power plant including a refrigeration cycle
US6964168B1 (en) Advanced heat recovery and energy conversion systems for power generation and pollution emissions reduction, and methods of using same
EP1553264B1 (fr) Cycle de Rankine amelioré et centrale thermique à vapeur utilisant ce cycle
RU2594096C2 (ru) Устройство для компрессии диоксида углерода
KR20170086135A (ko) 가스 터빈 에너지 보조 시스템 및 가열 시스템, 그리고 그 제작 및 이용 방법
KR101705657B1 (ko) 전기 발생 장치 및 방법
CA2263036C (fr) Cycle combine pour turbine a gaz
KR20150145198A (ko) 복합 사이클 발전소의 전력을 증가시키는 방법, 및 상기 방법을 실시하는 복합 사이클 발전소
JPH0713474B2 (ja) 燃焼ガスタービンを使用する動力発生方法、及び動力発生用の気体の燃焼方法
RU2273741C1 (ru) Газопаровая установка
CA3158402A1 (fr) Installation fondee sur des cycles de joule-brayton et de rankine combines fonctionnant avec des machines a mouvement alternatif accouplees directement
RU2412359C1 (ru) Способ работы парогазовой установки
RU2409746C2 (ru) Парогазовая установка с паротурбинным приводом компрессора и регенеративной газовой турбиной
WO2010086897A1 (fr) Installation utilisant de la vapeur, procédé d'exploitation de l'installation, appareil d'alimentation de vapeur et procédé d'alimentation de vapeur
WO2018208165A1 (fr) Récupération d'eau et d'énergie de gaz d'échappement
CN102046929A (zh) 空气分离设备和蒸汽再热循环的集成
EP0605159A1 (fr) Méthode pour utiliser le carburant, gaz naturel liquifié comme ayant réfrigérateur pour l'air entrant dans une turbine à gaz
RU2174615C2 (ru) Способ работы газопаровой установки
RU2791638C1 (ru) Газопаровая энергетическая установка
RU2810854C1 (ru) Способ производства электроэнергии на основе закритического СО2-цикла
CA2479985A1 (fr) Systeme ameliore de conversion energetique a partir d'un flux de fluide thermique

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17908965

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17908965

Country of ref document: EP

Kind code of ref document: A1