EP1092084A1 - Centrale electrique amelioree equipee d'un dispositif de capture du dioxyde de carbone - Google Patents

Centrale electrique amelioree equipee d'un dispositif de capture du dioxyde de carbone

Info

Publication number
EP1092084A1
EP1092084A1 EP99925483A EP99925483A EP1092084A1 EP 1092084 A1 EP1092084 A1 EP 1092084A1 EP 99925483 A EP99925483 A EP 99925483A EP 99925483 A EP99925483 A EP 99925483A EP 1092084 A1 EP1092084 A1 EP 1092084A1
Authority
EP
European Patent Office
Prior art keywords
combustion
products
combustion products
oxygen
combustion chamber
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.)
Withdrawn
Application number
EP99925483A
Other languages
German (de)
English (en)
Inventor
Tord Peter Ursin
Aksel Sigmund Hoelland
Gjert Laading
Oscar Fredrik Graff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aker Technology AS
Original Assignee
Aker Engineering 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 Aker Engineering AS filed Critical Aker Engineering AS
Publication of EP1092084A1 publication Critical patent/EP1092084A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • 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
    • F02C3/34—Gas-turbine plants characterised by the use of combustion products as the working fluid with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle
    • 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
    • F23C9/08—Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/006—Layout of treatment plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/50—Carbon dioxide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/70—Condensing contaminants with coolers
    • 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
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07001—Injecting synthetic air, i.e. a combustion supporting mixture made of pure oxygen and an inert gas, e.g. nitrogen or recycled fumes
    • 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
    • Y02E20/32—Direct CO2 mitigation

Definitions

  • the present invention relates to a combustion proc- ess, of the kind indicated in the introduction of claim 1, yielding exhaust comprising mainly of water vapour and carbon dioxide and facilitating removal of carbon dioxide from the exhaust .
  • This cycle has an acceptable thermal efficiency with a combined cycle setup and will produce C0 2 that may be disposed of in an environmentally friendly manner.
  • Other pollutants normally present in the combustion products such as oxides of nitrogen, may be similarly disposed of.
  • a main technical obstacle for this cycle/process is that turbines optimized for this service presently do not exist.
  • the most important fluid property deviation in this respect is the increase of molecular weight relative to that of air. Other deviations are lower sonic velocity and different kappa-value.
  • US patent 5724805 by Golomb shows a method for low pollution power generation by combusting a fossil fuel with high concentration oxygen in a combustion chamber, to which a coolant is introduced, and the latent heat of the combustion products are used for heating purposes or converted to mechanical and/or electrical energy.
  • a part of the combustion products after cooling to an appropriate temperature is optionally used as a diluent for the fossil fuel and the oxygen, and is injected as a coolant to the combustion chamber.
  • the invention is primarily aimed at heat integration between the air separation unit and the C0 2 condensing unit, in a closed cycle with internal combustion.
  • US patent 5247791 and 3628332 recycle both the water and the gases in the combustion products.
  • the water is separated from the combustion products by condensation.
  • the water which is acidic, may cause corrosion problems.
  • the present invention seeks to minimize the above mentioned obstacles by keeping the service conditions for the turbine as close to conventional as possible.
  • the present invention also allows simpler and safer plants to be built.
  • the present invention is based on two well known main concepts. They are, the concept of combustion of fossil fuels with a supply of highly concentrated oxygen, and the use of the combustion prod- ucts, or parts of them, as the main part of the working fluid in a closed cycle.
  • the main technological challenge for current methods utilizing this concept is the development of a gas turbine with the required performance for the cycle fluid composition in question.
  • the most im- portant fluid property deviation in this respect is the increase of molecular weight relative to that of air. This deviation may be avoided by recirculating combustion products containing water vapor to the combustion chamber.
  • the present invention proposes to do this by raising the suction temperature of the compressor (s) such that no or only small amounts of water vapor will condense in the main cycle loop.
  • Disposal of the C0 2 produced from a large scale power plant will most likely be achieved by injection into an underground reservoir. This will require an injection pressure higher than the combustion pressure.
  • a compressor and combustion chamber that allows the excess parts of the recirculated combustion products to be extracted downstream the compressor and upstream the combustion chamber is proposed. Combustion products removed at said location will not require separate compressors for com- pression from compressor suction pressure to combustion pressure. This will allow the plant to be built with fewer components and reduced cost .
  • the present invention proposes to mix oxygen with part of the recirculated combustion products and compress this in parallel with the rest of the recirculated com- bustion products.
  • the compression of combustion products and of oxygen diluted with combustion products may be performed in any number of parallel compressors. With this method, the flexibility when mixing the streams into the combustion chamber will be good. Adjustment of flow division between the compressors in order to obtain a practical design, e.g. with respect to compressor drivers, will be possible .
  • the present invention relates to a combustion process which facilitates removal of C0 2 from its ex- haust.
  • Highly concentrated oxygen from for instance an air separation unit (ASU) or other apparatus for the production of oxygen from air, is mixed with a fossil fuel, e.g. natural gas in a combustion chamber.
  • ASU air separation unit
  • the resulting combustion prod- ucts comprise mainly water vapour and C0 2 .
  • Part of the exhaust is cooled and recycled back to the feed gases and/or combustion chamber to control the combustion zone and combustion exit temperature.
  • the exhaust consists mainly of C0 2 , H 2 0, N 2 , Argon and 0 2 .
  • the C0 2 can be disposed of as gas, liquid or hydrates into subterranean formations, into producing formations, onto the seabed, or used commercially.
  • the present invention improves the combustion proc- ess by keeping vapor from condensing to water in the system, optionally using parts of the combustion products as a diluent for the oxygen before compressing and using the oxidant in the combustion chamber, and optionally withdrawing parts of the combustion products from the cycle after having been compressed to combustion pressure, but before being fed to the combustion chamber.
  • the advantages of this improved combustion process can be summarised as follows :
  • Fig. 1 is a schematic diagram showing the principles of burning fossil fuels with highly concentrated oxygen and recycling of combustion products.
  • Fig. 2 is a schematic diagram showing a closed steam cycle heat engine .
  • Fig. 3 is a schematic diagram showing an open cycle gas turbine type heat engine .
  • Fig. 4 is a schematic diagram showing a closed cycle gas turbine type heat engine with the combustion external to the heat engine cycle.
  • Fig. 5 is a schematic diagram showing a closed cycle gas turbine type heat engine with the combustion internally in the heat engine cycle .
  • Fig. 6 is a schematic diagram showing one alternative for the disposal of combustion products generated,
  • Fig. 7 is a schematic diagram showing a first embodiment of the present invention.
  • Fig. 8 is a schematic diagram showing a second em- bodiment of the present invention.
  • Fig. 9 is a schematic diagram showing a third embodiment of the present invention.
  • Fig. 10 is a schematic diagram showing a fourth embodiment of the present invention.
  • Fig. 1 shows the principle of burning fossil fuels with pure oxygen and recycling of exhaust with heat transfer to the working fluid of the heat engine.
  • a fuel is supplied through inlet line 101, its flow rate controlled by the control valve 103 and going to the burner arrangement 113 in the combustion chamber 114.
  • Highly concentrated oxygen for instance from an air separation unit, is supplied through inlet line 102, its flow rate being controlled by a control valve 104.
  • the oxygen then enters a mixer 109 wherein it is mixed with a suita- bly large portion of the combustion product which has been cooled by giving off heat to the working fluid of the heat engine cycle in heat transfer unit 115.
  • the admixture of cooled combustion products to the oxygen gives control of flame temperature levels.
  • the temperature is controlled at levels acceptable to the combustion chamber design and materials.
  • a further admixture of recirculating cooled combustion products takes place through a control valve 107 which is connected to the combustion chamber 114 outer wall by the line 111; this admixture flow is distributed into the space between the combustion chamber outer wall and the combustion chamber inner liner 112 which is suitably perforated for admission of more cooled combustion products, the purpose being reduction of hot combustion products temperatures to levels acceptable to downstream equipment such as the heat transfer surfaces 121 of the heat transfer unit 115.
  • the combustion products are, after their cool-down in the heat transfer unit 115, taken through a duct 118 to a motor driven recirculation fan 119 and is discharged through a duct 120 back to the control valves 106 and 107 and also to a control valve 105 controlling flow through the duct 108.
  • Heat from the combustion products passing through the heat transfer unit 115 is transferred to the heat engine working medium which enters the unit 115 through a connection 116 and discharged through a connection 117.
  • An integrated control system for the control of the control valves 103, 104, 105, 106, 107, of the recirculation fan 119 is required but not shown in fig. 1. Likewise not shown are the sensors giving inputs to the integrated control system.
  • the flow through the duct 108 goes to a combustion products disposal system (not shown) wherein the products, mainly water vapor and C0 2 gas, can be separated and liquefied through compression and cooling.
  • the C0 2 can then be disposed of in a man- ner preventing its entering the atmosphere.
  • Fig. 2 shows one alternative system in which the principle of burning fossil fuels with pure oxygen and recycling of exhaust can be used, namely in a steam cycle.
  • the fuel enters through inlet line 201 and the high concentration oxygen enters through inlet line 202.
  • Recirculating cooled combustion products supplied through line 210 are mixed with the supplied oxygen before going to a combustion chamber 214 where combustion of the fuel takes place with flame zone temperatures controlled by the admixture of the cooled combustion products.
  • the steam turbine 230 drives the load 240. Con- densed steam returns to the steam generator 215 through the line 216.
  • the combustion products cooled by giving off heat in the steam generator, are recirculated by the re- cirulation fan 219, most of the flow going through lines 210 and 211 back to the combustion chamber 214.
  • a mass flow rate equal to the combined supply of combustion reactants supplied through the lines 201 and 202 is let out of the recirculation loop through the line 208 and goes to disposal.
  • the combustion products contain mainly C0 2 and water vapor which through compression and cooling can be separated and disposed of as liquids .
  • Fig. 3 shows another alternative usage of the principle of burning fossil fuels with pure oxygen and recycling of exhaust, in this case as an external combustion chamber with transfer of heat into the working medium of an open cycle gas turbine .
  • Air enters the gas turbine 330 through the inlet line 321 and is compressed in the compressor sections 322A and B with an intercooler 323 in between the two compressors.
  • the compressed air flows to the heat exchanger 315 and receives heat from the hot combustion products emanating from the combustion chamber 314.
  • the heated air is next expanded in the turbine section 330 of the gas turbine.
  • Power generated in the turbine drives the compressor sections 322A and B and a load 340.
  • Some of the energy remaining in the exhaust from the turbine can be recovered in a waste heat recovery unit 331 before the air is disposed to the atmosphere through the exhaust duct 332.
  • the fuel is supplied to a combustion chamber system though the inlet line 301; the high concentration oxygen enters through the line 302. Recirculating cooled combustion products supplied through the line 310 mixes with the supplied oxygen before going to the combustion chamber 314 where combustion of the fuel takes place with flame zone tempera- tures controlled by the admixture of the cooled combustion products.
  • the combustion products contain mainly C0 2 and water vapor which through compression and cooling are separated and disposed of as liquids.
  • Fig. 4 shows yet another alternative system in which the principle of burning fossil fuels with pure oxygen and recycling of exhaust can be used, namely in an closed cycle gas turbine with an external combustion chamber.
  • the recirculating work- ing medium of the gas turbine enters the cycle through line 421 and is compressed in the compressor sections 422A and B.
  • the working medium is led through the in- tercooler 423 in order to reduce the compressor work and the compressor discharge temperature.
  • the working medium passes from the compressor to a recuperator/regenerator 424 receiving some heat from the working medium exhausting from the expander turbine 430.
  • the working medium being heated next goes to the heat exchanger 415 where heat emanating from a com- bustion chamber 414 is added.
  • the working medium is then expanded in the turbine 430 which drives the compressor section 422A,B and also the load 440.
  • the turbine exhaust then passes to the recupera- tor/regenerator 424 where heat is given off to the working medium coming from the compressor section 422A,B.
  • the working medium which has been through the expander turbine and the recuperator/regenerator next goes to the precooler 427 where its temperature is taken down as low as practically possible before the working medium is led back into the line 421 and re-enters the compressor section.
  • the fuel is supplied to the combustion chamber system through the inlet line 401; the high concentration oxygen enters through the inlet line 402. Recirculating cooled combustion products supplied through the line 410 mixes with the supplied oxygen before going to the combustion chamber 414 where combustion of the fuel takes place with flame zone temperatures controlled by the admixture of the cooled combustion products.
  • the cooled combustion products are recirculated by a recirulation fan 419, most of the flow going through the lines 410 and 411 back to the combustion chamber 414.
  • a mass flow rates equal to the combined supply of combustion reactants supplied through the inlet lines 401 and 402 is let out of the combustion products recirculation loop through the line 408 and goes to a disposal system, as the one suggested in Fig. 6.
  • the combustion products contain mainly C0 2 and water vapor which through compression and cooling can be separated and disposed of as liquids.
  • Valves controlling the flows of fuel, oxygen and recirculating cooled combustion products are not shown in fig. 4.
  • Fig. 5 shows still another alternative system in which the principle of burning fossil fuels with pure oxygen and recycling of exhaust can be used, in this case consisting of a closed cycle gas turbine, but with internal combustion.
  • the recircu- lating working medium of the gas turbine enters the compressor sections through a line 521, wherein it is compressed in a compressor sections 522A and B with intercooling in 523 to reduce compressor work and the compressor discharge temperature .
  • the working medium then passes from the compressor section 522B to the recuperator/regenerator 524 re- ceiving some heat from the working medium exhausting from the expander turbine 530.
  • the working medium being heated next goes to the combustion chamber 514 but is divided into two streams before entering.
  • the stream through line 510 is mixed with the supply of high concentration oxygen, which is supplied at 502.
  • the admixture of working medium to the oxygen is used to control combustion flame temperature at levels acceptable to combustion chamber design and materials.
  • the second supply of working medium to the combustion chamber enters through line 511 and is used to control the combustion chamber exit temperature at levels acceptable to the expander turbine 530 which is next in the working medium loop.
  • Fuel is supplied to the combustion chamber through connection 501.
  • Working medium exhausting from the expander turbine 530 next flows to the recuperator/regenerator' s 524 hot side and gives off heat to the working medium coming from in the compressor section 522B.
  • Total disposal mass flow rates equals total rate of supplying fuel and high concentration oxygen into connections 501 and 502, respectively.
  • Valves controlling the flows of fuel, oxygen and the distribution of working medium flow through the combustion chamber 514 are not shown in fig. 5.
  • Fig. 6 shows a method for separation of in which C0 2 and water vapor are disposed. Surplus combustion products released from the combustion products recirculation loop through lines 108, 208, 308, 408, 508 shown on Figs. 1, 2, 3, 4, 5, respec- tively, are led into the disposal system through line 608.
  • the disposal system main components are compressors 652, 653, 654, coolers/condensers 655, 656, 657, 661 and scrubbers 665, 666, 667.
  • the main ingredients of the combustion products are C0 2 and water vapor; with minor components, such as nitrogen, oxygen, and argon, present.
  • the surplus combustion products supplied to the disposal system through line 608 is compressed in the compressor stage 652, cooled with condensation of water vapor in cooler 655.
  • the condensed water is separated out from the rest of the combustion products in the scrubber 658 and disposed of through line 665.
  • the pressure is further increased and more water vapor condensed out as the combustion products passes through compressor 653, cooler/condenser 656 and scrubber 659 producing further water drainage through line 666.
  • Fig. 6 is based on the assumption that 3 steps of compression is required to take the pressure up to approximately 72 bara out of the last compressor stage 654.
  • the compressor stages are driven by the driver unit 664, normally a motor with a speed- increasing gear.
  • More water vapor may be taken out by cooling the combustion products in cooler 657 and taking condensed water out in scrubber 660 through the drain 667.
  • the pressure of the remaining combustion products going into the next cooler 661 is assumed to be kept to 70 bara.
  • the main ingredient is C0 2 , additionally small amounts of nitrogen, oxygen and ar- gon; the water vapor content is very small after the preceding condensation/removal of water. If advantagous with respect to corrosion in downstream lines, a dehydration package for removal of water vapor may easily be installed at an appropriate point between compressor 652 and pump 663.
  • cooler 661 Taking the temperature of the remaining combustion product down in cooler 661 causes the C0 2 to condense to C0 2 liquid which is then removed in scrubber 662, drained out through a line to a pump 663 where the C0 2 liquid can be pumped up to a pressure suitable for injection of the liquid into a geological formation, thus avoiding the release of the C0 2 to the atmosphere .
  • the remaining gaseous ingredients mostly nitrogen and argon which entered the system as contaminants in the oxygen or fuel are disposed via line 669 together with any excess oxygen remaining in the combustion products after combustion of the fuel.
  • Fuel line 701 fuel, e.g. natural gas, an oxidant stream 710 primarily composed of oxygen mixed with combustion products, and a coolant stream of recirculated combustion products 711 are supplied to the combustion chamber 714.
  • the combustion chamber 714 may be constructed as two functionally similar combustion chambers, one installed on each of the two gas turbines, 730A and 730B.
  • the flow rates of streams 701, 710 and 711 are selected to give appropriate temperatures both in the flame and in the products exiting the combustion chamber.
  • the products After leaving combustion chamber 714, the products are split into two streams, one passing through turbine 730A and one passing through turbine 730B, the turbines driving generators 740A and 740B.
  • said product streams After passing through the tur- bines, said product streams are mixed and passed through a waste heat recovery unit 727 where the products are cooled. This may be done in a heat recovery steam generator for supply to a steam turbine and/or for use for district heating. If a heat recovery steam generator is used, further cooling to the appropriate compressor suction temperature may have to be applied. It is advantageous to utilize as much of the heat removed in the heat recovery unit 727 in a steam system (not shown on the figure) as possible. Furthermore it is advantageous to cool as much as possible without condensing water vapor.
  • the stream of cooled combustion products coming out of the heat recovery unit 727 is split into two streams, 721A and 721B. Stream 721B is compressed in compressor 722B, a suitable flow of combustion products 708 is withdrawn from stream
  • Stream 721A is mixed with an appropriate amount of oxygen coming through line 702 in mixer 715.
  • the oxygen may be produced in a cryogenic or membrane air separation unit .
  • the mixed oxygen and combustion products coming out of the mixer is compressed in compressor 722A and introduced in the combustion chamber 714 as oxidant.
  • fig. 8 the present invention is shown used in a parallel shaft configuration, one compressor driven by a gas turbine and one compressor driven by a steam turbine.
  • the combustion products are fed to turbine 830A and then passed to the waste heat recovery 83 OA driving generator 840 and then passed to the waste heat recovery unit 827.
  • the steam turbine 83OB is fed with steam (not shown on the fig- ure) generated in the waste heat recovery unit,
  • Compressor 922A and 922B are both driven by turbine 930 which also drives generator 940. Otherwise this configuration is similar to the one shown in fig. 8.
  • fig. 10 the present invention is shown in a one- axle configuration driven by a turbine.
  • the combustion products exiting waste heat recovery unit 1027 are fed to a compressor 1022 driven by turbine 1030 through line 1021.
  • a suitable flow of combustion products 1008 is withdrawn from stream 1011 downstream the compressor exit.
  • These high pressure products 1008 may be cooled, condensed water separated out, and the rest, mostly C0 2 , may be com- pressed and injected into an underground reservoir.
  • Stream 1011 is split into two, one is mixed with stream 1002, which contains highly concentrated oxygen and the other is injected into the combustion chamber as a coolant stream.
  • the split ratio of stream 1011, the flow rates of streams 1001 and 1011 are selected to give appropriate temperatures in the flame and in the products exiting the com- bustion chamber. Otherwise this configuration is similar to the one shown in fig. 9.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Air Supply (AREA)

Abstract

On décrit un procédé de production d'énergie à pollution réduite, qui consiste à brûler un combustible avec un apport d'oxygène très concentré dans une chambre de combustion (714) dans laquelle des produits de combustion recirculés sont introduits pour réguler la température. Le procédé se caractérise en ce que tout ou partie des produits de combustion sont refroidis (727) à une température appropriée qui empêche tout ou la majeure partie de la vapeur d'eau de se condenser à partir desdits produits, avant que ces produits ne soient comprimés et recirculés vers la chambre de combustion.
EP99925483A 1998-06-02 1999-06-02 Centrale electrique amelioree equipee d'un dispositif de capture du dioxyde de carbone Withdrawn EP1092084A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO982504 1998-06-02
NO982504A NO982504D0 (no) 1998-06-02 1998-06-02 Fjerning av CO2 i r°kgass
PCT/NO1999/000177 WO1999063210A1 (fr) 1998-06-02 1999-06-02 Centrale electrique amelioree equipee d'un dispositif de capture du dioxyde de carbone

Publications (1)

Publication Number Publication Date
EP1092084A1 true EP1092084A1 (fr) 2001-04-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99925483A Withdrawn EP1092084A1 (fr) 1998-06-02 1999-06-02 Centrale electrique amelioree equipee d'un dispositif de capture du dioxyde de carbone

Country Status (6)

Country Link
EP (1) EP1092084A1 (fr)
JP (1) JP2002517656A (fr)
AU (1) AU4174899A (fr)
CA (1) CA2333357A1 (fr)
NO (1) NO982504D0 (fr)
WO (1) WO1999063210A1 (fr)

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WO1999063210A1 (fr) 1999-12-09
AU4174899A (en) 1999-12-20

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