CN101238341B - Method for operating a gas turbine and a gas turbine for implementing the method - Google Patents

Method for operating a gas turbine and a gas turbine for implementing the method Download PDF

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Publication number
CN101238341B
CN101238341B CN2006800289706A CN200680028970A CN101238341B CN 101238341 B CN101238341 B CN 101238341B CN 2006800289706 A CN2006800289706 A CN 2006800289706A CN 200680028970 A CN200680028970 A CN 200680028970A CN 101238341 B CN101238341 B CN 101238341B
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Prior art keywords
turbine
combustion
synthesis gas
combustion gas
gas
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CN101238341A (en
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E·本茨
M·维尔萨姆
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Ansaldo Energia IP UK Ltd
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Alstom Technology AG
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    • 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
    • F02C3/26—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 the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension
    • F02C3/28—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 the fuel or oxidant being solid or pulverulent, e.g. in slurry or suspension using a separate gas producer for gasifying the fuel before combustion
    • 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
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/003—Gas-turbine plants with heaters between turbine stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
    • F25J3/04539—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the H2/CO synthesis by partial oxidation or oxygen consuming reforming processes of fuels
    • F25J3/04545—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the H2/CO synthesis by partial oxidation or oxygen consuming reforming processes of fuels for the gasification of solid or heavy liquid fuels, e.g. integrated gasification combined cycle [IGCC]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04563—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating
    • F25J3/04575—Integration with a nitrogen consuming unit, e.g. for purging, inerting, cooling or heating for a gas expansion plant, e.g. dilution of the combustion gas in a gas turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
    • F25J3/04593—The air gas consuming unit is also fed by an air stream
    • F25J3/046—Completely integrated air feed compression, i.e. common MAC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2200/00—Processes or apparatus using separation by rectification
    • F25J2200/20—Processes or apparatus using separation by rectification in an elevated pressure multiple column system wherein the lowest pressure column is at a pressure well above the minimum pressure needed to overcome pressure drop to reject the products to atmosphere
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/40—Processes or apparatus involving steps for increasing the pressure of gaseous process streams the fluid being air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2240/00—Processes or apparatus involving steps for expanding of process streams
    • F25J2240/80—Hot exhaust gas turbine combustion engine
    • 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
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • 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
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

The invention relates to a method for operating a gas turbine (11) in a combined-cycle power plant (40), in which method air is sucked in and compressed by the gas turbine (11), and the compressed air is fed to a combustion chamber (18, 19) for the combustion of a synthesis gas which is obtained from coal, wherein a part of the compressed air is decomposed into oxygen and nitrogen. An improved degree of efficiency is achieved by the use of a gas turbine (11) with reheating, which gas turbine (11) has two combustion chambers (18, 19) and two turbines (16, 17), wherein synthesis gas is burnt inthe first combustion chamber (18) with the compressed air and the hot gases which are produced are expanded in the first turbine (16). Synthesis gas is burnt in the second combustion chamber with thegases which come from the first turbine (16) and the hot gases which are produced are expanded in the second turbine (17), and the synthesis gas is generated in such a way that the generated synthesis gas can be fed directly to the first combustion chamber (18).

Description

The combustion gas turbine that is used for the method for operating gas turbine and is used to implement this method
Technical field
The present invention relates to the field of power station technology.It relates to a kind of method that is used for operation (fixing) combustion gas turbine as described in the preamble according to claim 1, and relates to a kind of combustion gas turbine that is used to implement this method.
Background technology
The combustion gas turbine (resuperheat formula combustion gas turbine) that has resuperheat is known (for example referring to US-A-5; 577; 378 or " the up-to-date brief introduction of the combustion gas turbine of prior art, " ABB comment 02/1997, Figure 15; Turbine type GT26), it will move flexibly with low-down toxic emission value and combine.
The machine construction of the combustion gas turbine of type GT26 be unique be suitable for realizing to be the design of theme of the present invention capitally because:
-in the sizable shunting that has just had the compressor air under intermediate compressor pressure under the situation of compressor,
-in order the burning design can realize the raising of combustion stability reduce simultaneously superfluous oxygen value and
-there is secondary ventilation system, it can realize air tapped from compressor, is used for cooling combustion chamber and turbine with this air cooling with the air that cools off.
Principle with known combustion gas turbine of resuperheat is shown among Fig. 1.Combustion gas turbine 11; It is the part of combined-cycle power generation plant 10, comprise two be arranged on the public axle 15 each other before latter linked compressor, i.e. low pressure compressor 13 and high pressure compressor 14; And two combustion chambers; Be high compression combustion chamber 18 and the resuperheat combustion chamber 19 and the turbine of being attached troops to a unit, i.e. high pressure turbine 16 and low pressure turbine 17.Axle 15 drives generator 12.
The working method of equipment is following: air sucks and is compressed to earlier intermediate pressure level (approximately 20bar) through air intake 20 by low pressure compressor 13.High pressure compressor 14 continues air is compressed to high-pressure horizontal (approximately 32bar) then.The cooling air not only intermediate pressure level and also under high-pressure horizontal by shunting and the OTC cooler (OTC=that attached troops to a unit ONce THrough COoler (once through-flow cooler or direct current cooler)) to be cooled in 23 and 24 and to be continued to be directed to combustion chamber 18,19 and turbine 16,17 in order cooling off through cooling pipe 25 and 26.The air that stays from high pressure compressor 14 is drawn towards high compression combustion chamber 18, and the fuel that is infeeded by fuel feed pipe line 21 through burning there is heated.The waste gas that forms then expand into the intermediate voltage level under acting in high pressure turbine 16 subsequently.After waste expansion, it in low pressure turbine 17 subsequently, doing expand under the additional merit before, the fuel that it is infeeded by fuel feed pipe line 22 through burning in resuperheat combustion chamber 19 and by heating once more.
The cooling air that flow through cooling pipeline 25,26 are injected to the suitable place of combustion chamber 18,19 and turbine 16,17, so that material temperature is limited on the rational yardstick.The waste gas that comes out from low pressure turbine 17 passes through waste heat steam generator 27 (HRSG= HEat REcovery STeam GEnerator) transmission is used to produce steam, and this steam flows through steam turbine 29 in water-steam-return line and makes additional merit there.After waste gas flow through waste heat steam generator 27, waste gas discharged through waste line 28 at last.OTC cooler 23,24th, the part of water-steam-return line; Exit at them produces overheated steam.
Through the twice combustion in the combustion chamber 18 and 19 that is provided with in succession in separate front and back, realized big operational flexibility; Temperature in the combustion chamber can be regulated in this wise, makes in the limit that exists, to reach maximum efficient.The low waste gas value of combustion system produces through intrinsic low discharge value in order, and this low discharge value can be realized (burn the second time under certain conditions even cause the consumption of Nox) under the resuperheat situation.
On the other hand; Combined-cycle power generation plant with the single-stage burning in combustion gas turbine be known (for example referring to US-A-4,785,622 or US-B2-6; 513; 317), wherein combination has the coal vaporising device, so that the fuel of the synthesis gas of the needed form of combustion gas turbine for from coal, obtaining is provided.This combined-cycle power generation plant be called as IGCC ( INtegrated GAsification COmbined CYcle (combined cycle of comprehensively vaporizing)) equipment.
The present invention is from such understanding, promptly owing in IGCC equipment, use the combustion gas turbine with resuperheat, can the advantage of such combustion gas turbine be used for this equipment with special mode.
Summary of the invention
Task of the present invention is to propose a kind of method that is used to move with the cooperative combustion gas turbine of coal gasifier; The method is characterized in that and improved efficient and can utilize existing parts advantageous particularly ground to realize, and a kind of combustion gas turbine that is used to implement this method is provided.
This task solves through the integral body of the characteristic of claim 1 and 6.The combustion gas turbine that main is has a resuperheat is used in in the combustion gas turbine equipment from the synthesis gas work of coal gasifier; It comprises two combustion chambers and two turbines, and wherein in first combustion chamber, synthesis gas is using burning under the compressed air; Expand in first turbine with the hot combustion gas that produces; Wherein in second combustion chamber, synthesis gas under using from the combustion gas of first turbine, burns and the hot combustion gas of generation is expanded in second turbine; Implement the generation of synthesis gas in this wise, the synthesis gas that promptly produces can directly flow to first combustion chamber.
Be characterised in that according to an embodiment of method of the present invention air separation carries out under pressure＞40bar; Or coal gasification is carried out under pressure＞40bar; Or the combustion gas that under coal gasification, forms filtered and the filtration of combustion gas is carried out, or CO is carried out in the combustion gas that under coal gasification, forms under pressure＞40bar 2Removal, and CO 2Removal under pressure＞40bar, carry out.
Be characterised in that according to an embodiment of combustion gas turbine of the present invention the equipment that is used to produce synthesis gas comprises air separation equipment; Work under pressure＞40bar with air separation equipment; Or the equipment that is used to produce synthesis gas comprises that coal gasifier and coal gasifier work under pressure＞40bar; Or the equipment that is used to produce synthesis gas comprises that filter plant and filter plant work under pressure＞40bar, or the equipment that is used to produce synthesis gas comprises CO 2Separator and CO 2Separator is worked under pressure＞40bar.
Description of drawings
Below the present invention according to embodiment and combine accompanying drawing to be elaborated.Shown in the accompanying drawing
Fig. 1 is the combined-cycle power generation plant rough schematic view that has the combustion gas turbine of resuperheat or burn in order of the prior art;
Fig. 2 according to one embodiment of the present of invention, have the combustion gas turbine of resuperheat or the rough schematic view of IGCC equipment of burning in order.
The specific embodiment
In having the combustion gas turbine of resuperheat, as by type GT26 representative and Fig. 1 illustrates, air intermediate voltage (11-20bar (crust)) and high pressure (＞30bar) under from compressor 13,14 taking-ups.
First combustion chamber 18 need have final pressure corresponding to compressor 13,14 add in the pipeline with the combustion chamber in the pressure of the pressure loss under synthesis gas.In the IGCC of the routine with the combustion gas turbine that only has combustion chamber equipment, the pressure in the coal gasifier is approximately 30bar.If in this equipment, use combustion gas turbine to replace only having the combustion gas turbine of a combustion chamber with resuperheat, then from the synthesis gas of coal gasifier must by means of one or more compressors by the final pressure (approximately 30bar) from coal gasifier be compressed to first combustion chamber＞stress level of 45bar.
On the other hand,, just must use decompressor, so that synthesis gas expand into the stress level of combustion chamber if will there not be the pressure in the coal gasifier of combustion gas turbine of resuperheat to bring up to for example 60bar.
Design of the present invention is, in the IGCC equipment of the combustion gas turbine with band resuperheat, makes the coal gasification branch of equipment, and it generally includes air separation equipment, coal gasifier, combustion gas filter plant, and CO 2Separator is that be complementary, that be positioned at 40 to 65bar scopes with the stress level of first combustion chamber of combustion gas turbine and on the stress level of the stress level of the combustion gas turbine that does not have resuperheat, move thus.Avoid the use of additional compressor thus and come compressed synthesis gas.
Illustrated in the sketch map of the strong simplification in Fig. 2 a kind of according to the combustion gas turbine with resuperheat of one embodiment of the present of invention or in order the burning IGCC equipment, it is suitable for being used to realize the present invention.Combined-cycle power generation plant 30 comprises combustion gas turbine 11, and it has low pressure compressor 13, high pressure compressor 14 subsequently, high compression combustion chamber 18 and high pressure turbine subsequently 16 and resuperheat combustion chamber 19 and low pressure turbine subsequently 17. Compressor 13,14 is supported on the public axle 15 with turbine 16,17, is driven through this shaft generator 12.Through supply pipeline 31, the synthesis gas that acts as a fuel is supplied with in combustion chamber 18 and 19, it produces through coal gasification in coal gasifier 34 (coal input 33).Be connected with the cooling device 35 that is used for synthesis gas, filter 36 and CO after the coal gasifier 34 2 Separator 37, the latter has and is used to give off CO 2CO 2Outlet 38.
In order in coal gasifier 34, coal to be gasified, used the oxygen (O2) that in air separation equipment 32, obtains and pass through oxygen channel 32a conveying.Air separation equipment 32 low pressure compressors 13,14 obtain compressed air.Nitrogen (the N that also in separation, produces 2) for example flow to low-pressure burner 19 through nitrogen pipeline 32b.
For cooling combustion chamber 18; 19 with turbine 16; 17 the parts that are exposed to hot combustion gas; The cooling air of compression is emitted in the outlet of two compressors 13 and 14, is cooled in the OTC cooler 23 or 24 that connects in the back and is transported to the position that will cool off through corresponding cooling pipeline 25 and 26 then.
Waste heat steam generator 27 is arranged in exit at low pressure turbine 17, and it is parts of water-steam-return line with the steam turbine 29 that connects.The waste gas that comes out from waste heat steam generator 27 is discharged into the outside through waste line 28.
In this equipment configuration, be used to produce the equipment branch of synthesis gas, it comprises air separation equipment 32, coal gasifier 34, filter plant 36, and CO 2Separator 37 is designed in this wise and is moved now, makes the synthesis gas that produces can directly be transported to first combustion chamber 18.For this reason, perhaps air separator 32 or coal gasifier 34, perhaps filter plant 36 or CO 2Separator 37 can be worked under pressure＞40bar.In order to reach desired stress level, an additional compressor 39 can be set in suitable place through the combustion gas of this equipment diverted flow.
The Reference numeral table
10,30,40 combined-cycle power generation plants
11 combustion gas turbines
12 generators
13 low pressure compressors
14 high pressure compressors
15 (combustion gas turbine)
16 high pressure turbines
17 low pressure turbines
18 high compression combustion chambers
19 resuperheat combustion chambers
20 air intakes
21,22 fuel feed pipe lines
23,24 OTC coolers
25,26 cooling pipelines
27 waste heat steam generators
28 waste lines
29 steam turbines (vapor recycle)
31 synthesis gas supply pipelines
32 air separation equipments
The 32a oxygen pipeline
The 32b nitrogen pipeline
33 coals are supplied with
34 coal gasifiers
35 cooling devices
36 filters
37 CO 2Separator
38 CO 2Outlet
39 compressors

Claims (11)

1. the method that is used for operating gas turbine (11), air is sucked and compression by combustion gas turbine (11) in the method, and air compressed is transported to first and second combustion chambers (18; 19) be used for the synthesis gas that burns and obtain, the hot combustion gas that in burning, produces acting and expanding in first and second turbines (16,17) subsequently from coal; Wherein the part of air compressed is separated into oxygen and nitrogen, oxygen be used in by means of coal gasification from coal, produce synthesis gas equipment (32 ...; 39) produce synthesis gas in; The part of air compressed is used to cool off the part of the hot combustion gas load of bearing of combustion gas turbine (11), it is characterized in that
-use combustion gas turbine (11) with resuperheat, it comprises said first and second combustion chambers (18,19) and said first and second turbines (16; 17); Wherein in first combustion chamber (18), use the combusting under pressure synthesis gas of compressed air in the scope of 40-65bar, the hot combustion gas of generation is expanded in first turbine (16), and wherein in second combustion chamber, uses the fuel gas buring synthesis gas from first turbine (16); The hot combustion gas that produces is expanded in second turbine (17), and
The generation of-synthesis gas is implemented in this wise, and the synthesis gas that promptly produces can directly be flowed to first combustion chamber (18) and come compressed synthesis gas to avoid the use of additional compressor under the pressure of the scope that is positioned at 40-65bar.
2. according to the described method of claim 1, it is characterized in that this combustion gas turbine is used in the combined-cycle power generation plant (30).
3. according to claim 1 or 2 described methods, it is characterized in that air separation is carried out under pressure＞40bar.
4. according to claim 1 or 2 described methods, it is characterized in that coal gasification is carried out under pressure＞40bar.
5. according to claim 1 or 2 described methods, it is characterized in that, the combustion gas that produces in the coal gasification is filtered, and the filtration of combustion gas is carried out under pressure＞40bar.
6. according to claim 1 or 2 described methods, it is characterized in that, from the combustion gas that coal gasification, produces, take out CO 2, CO 2Taking-up under pressure＞40bar, carry out.
7. be used to implement the combustion gas turbine (11) according to the described method of claim 1, this combustion gas turbine (11) is designed with the combustion gas turbine of resuperheat, and comprises the compressor (13 that is used to compress inhaled air; 14) and first and second combustion chambers (18,19) and first and second turbines (16,17); Wherein in first combustion chamber (18), use this air compressed and at the combusting under pressure fuel of 40-65bar scope, the hot combustion gas of generation is expanded in first turbine (16), and wherein in second combustion chamber use come combustion fuel from the combustion gas of first turbine (16); The hot combustion gas that produces is expanded in second turbine (17), it is characterized in that, is provided with the equipment (32 that is used to produce synthesis gas; ...; 39), it produces synthesis gas by means of coal gasification from coal, and in outlet side and said first and second combustion chambers (18; 19) connect and to said first and second combustion chambers (18; 19) supply with the synthesis gas act as a fuel, the said equipment that is used to produce synthesis gas (32 ...; 39) outlet directly is connected with first combustion chamber (18), and the synthesis gas of generation can directly be flowed to first combustion chamber (18) and come compressed synthesis gas to avoid the use of additional compressor under the pressure of the scope that is positioned at 40-65bar.
8. according to the described combustion gas turbine of claim 7, it is characterized in that, be used to produce synthesis gas equipment (32 ..., 39) comprise air separation equipment (32), this air separation equipment (32) is worked under pressure＞40bar.
9. according to the described combustion gas turbine of claim 7, it is characterized in that, be used to produce synthesis gas equipment (32 ..., 39) comprise coal gasifier (34), this coal gasifier (34) is worked under pressure＞40bar.
10. according to the described combustion gas turbine of claim 7, it is characterized in that, be used to produce synthesis gas equipment (32 ..., 39) comprise filter plant (36), this filter plant (36) is worked under pressure＞40bar.
11. according to the described combustion gas turbine of claim 7, it is characterized in that, be used to produce synthesis gas equipment (32 ..., 39) comprise CO 2Separator (37), this CO 2Separator (37) is worked under pressure＞40bar.
CN2006800289706A 2005-08-10 2006-08-07 Method for operating a gas turbine and a gas turbine for implementing the method Active CN101238341B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US70677505P 2005-08-10 2005-08-10
US60/706,775 2005-08-10
CH2023/05 2005-12-20
CH20232005 2005-12-20
PCT/EP2006/065110 WO2007017490A1 (en) 2005-08-10 2006-08-07 Method for operating a gas turbine, and gas turbine for carrying out the method

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CN101238341A CN101238341A (en) 2008-08-06
CN101238341B true CN101238341B (en) 2012-04-18

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JP (1) JP2009504967A (en)
CN (1) CN101238341B (en)
CA (1) CA2618030C (en)
DE (1) DE112006002028B4 (en)
WO (1) WO2007017490A1 (en)

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