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WO2017050459A1 - Centrale à turbine à vapeur avec combustion d'hydrogène et à dispositif de gazéification intégré - Google Patents

Centrale à turbine à vapeur avec combustion d'hydrogène et à dispositif de gazéification intégré Download PDF

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Publication number
WO2017050459A1
WO2017050459A1 PCT/EP2016/067429 EP2016067429W WO2017050459A1 WO 2017050459 A1 WO2017050459 A1 WO 2017050459A1 EP 2016067429 W EP2016067429 W EP 2016067429W WO 2017050459 A1 WO2017050459 A1 WO 2017050459A1
Authority
WO
WIPO (PCT)
Prior art keywords
steam turbine
power plant
combustion chamber
turbine power
hydrogen
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.)
Ceased
Application number
PCT/EP2016/067429
Other languages
German (de)
English (en)
Inventor
Olaf Hein
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2017050459A1 publication Critical patent/WO2017050459A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/003—Methods of steam generation characterised by form of heating method using combustion of hydrogen with oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
    • F01K25/005—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for the working fluid being steam, created by combustion of hydrogen with oxygen

Definitions

  • the present invention relates to a steam turbine power plant which is typically provided for power generation.
  • Such power plant equipment is subject to increasingly stringent economic requirements as well as environmental regulations.
  • the economic requirements not only concern efficient provision of electrical energy, but must also take into account resource availability over the life of a power plant.
  • fossil energy sources will continue to be considered as a power plant raw material for energy generation in the future.
  • C0 2 emission limit values must not be exceeded more than ⁇ or cause disproportionate cost to additives.
  • nachträg ⁇ handy reduction of the carbon dioxide contained in an exhaust gas
  • the challenge is to propose a power plant concept that will continue to enable the use of fossil fuels, but which can also ensure a reduced emission of pollutants and harmful gases.
  • This object of the invention is achieved by a steam ⁇ turbine power plant according to claim 1.
  • a steam turbine power plant comprising a
  • Gasification means for providing a hydrogen-containing fuel gas the gasifier to the combustion chamber is also fluidly connected so that the hydrogen-containing fuel gas to the combustion chamber can be supplied ⁇ leads further umfas ⁇ transmitted.
  • the gasification device serves to provide hydrogen-containing fuel gas, which is supplied to a combustion chamber for combustion.
  • a steam turbine is supplied in the combustion chamber of the hydrogen with either oxygen, an oxygen-rich be ⁇ th gas or combusted with air and the combustion products, mainly water vapor.
  • a steam turbine is supplied in this steam turbine. In this steam turbine, in particular the vaporous
  • the relevant power plant concept of the present invention thus makes a subsequent C0 2 ⁇ laundry superfluous, since in the hydrogen combustion primarily water is released as exhaust gas. Since virtually no carbon-containing gases get burned during hydrogen combustion, subsequent C0 2 scrubbing is not necessary.
  • the carbon dioxide released during the gasification of fossil fuels can be separated by suitable processes and fed to future use.
  • carbon dioxide is in particular a raw material in the herstel ⁇ development of methane or methanol.
  • the carbon dioxide can be pressed into underground caverns, for example be used for future use, or to be made harmless in geological processes largely harmless.
  • the gasification device is a coal gasification device.
  • a low temperature source to provide about the coal drying ⁇ thermally.
  • a low-temperature source can be provided, for example, by the intercooling of a compressor.
  • the coal drying can also by a compressor intercooling a
  • GmR plant can be realized, which is also provided approximately on the Ge ⁇ countries of the coal gasification. In addition, even the residual exhaust heat can be used for coal drying.
  • the combustion chamber of the present invention is also capable of burning hydrogen and oxygen to water.
  • the combustion chamber is thus preferably designed as a hydrogen combustion chamber with a hydrogen burner.
  • a pure aussch Strukturli ⁇ che hydrogen combustion can take place, namely when hydrogen is burned with oxygen in appropriate stoichiometric amounts or also be a partial hydrogen ⁇ burns when about other gases or
  • Main combustion gases are not reacted in stoichiometric ratio zueinan ⁇ .
  • the combustion chamber is also supplied water in the vapor state as moderator.
  • the water vapor can also be mixed with the oxygen before being fed to the combustion chamber.
  • a separation device is connected fluidly, which is a separation of Wasserstoff Anlagenm Fuel gas from the product gas of the gasification achieved.
  • the outgoing from the gasifier product gas stream ⁇ here includes large amounts of hydrogen and Koh ⁇ dioxide in addition to possibly other substances, and no particle which can be separated also suitable separation methods.
  • a membrane separation device the low molecular weight hydrogen can be separated from the higher molecular ⁇ ren substances. The thus separated hydrogen in turn can be supplied to the combustion chamber below to supply the hydrogen combustion.
  • the execution proper separation device allows a controllable What ⁇ serstoffVerbrennung in the combustion chamber to entertain.
  • a separating device which carries out a separation of carbon dioxide from the product gas of the gasification device, to be connected fluidly between the gasification device and the combustion chamber.
  • the remaining product gas, which was separated from Kohlendio ⁇ oxide, in this case comprises a high proportion of hydrogen and carbon monoxide and may also be supplied to the internal chamber ⁇ for the entertainment of hydrogen combustion.
  • the so separated carbon dioxide is a storage and possibly subsequently a Methanmaschinesstrom, or even bypassing the memory, the methanation system is fed directly to supply them with the raw material Kohlendio ⁇ xid.
  • the separation device serves to remove carbon dioxide and at the same time hydrogen-containing gas from the product gas. Since in the United ⁇ gasungs adopted typically the product gas is produced from a mixture of hydrogen-containing gas and carbon dioxide, a particularly efficient use of all substances can be achieved in the product gas by the simultaneous removal of both tubular fabrics.
  • a connection point to a gas pipeline network is fluidly connected between the gasification device and the combustion chamber, so that hydrogen can be fed into this and possibly also removed from it.
  • the gas pipeline network serves primarily for temporary storage of the generated hydrogen, in order to then possibly remove it from the gas pipeline network in the future as well.
  • the gas pipeline network may, for example, be a hydrogen pipeline network into which
  • the gas pipeline network may also be a natural gas pipeline network in which, due to the composition of natural gas, typically a relatively small amount of hydrogen is also encountered.
  • the increase in this proportion of hydrogen in the gas of the gas line ⁇ network may in this case only to certain upper limits ⁇ SUC gene in order not to jeopardize the function of activity which are supplied from the gas line network, other devices, the.
  • the gas pipeline network is a natural gas pipeline network, extraction of natural gas from this gas pipeline network is no longer possible in the context of the present invention, since hydrogen combustion would no longer be possible in the combustion chamber, but at least partial natural gas combustion would take place.
  • hydrogen as a high-energy raw material is suitable for increasing the overall chemical energy in the gas pipeline network. If the gas pipeline network is a natural gas pipeline network, only a portion of the hydrogen should be stored in this, so that a residual part is still available for combustion in the combustion chamber.
  • a storage device is connected in a fluid-operated manner between the gasification device and the combustion chamber, which is designed for a temporal storage of hydrogen-containing fuel gas from the gasification device.
  • a temporal storage is given when the hydrogen containing fuel gas can be stored for at least one hour.
  • the storage device allows the time-independent maintenance of hydrogen combustion, namely, even if, for example, the gasification device no longer promotes hydrogen-containing fuel gas.
  • the storage device thus serves the temporal flexibility of the operation of the present steam turbine power plant.
  • the memory device can be powered by different sources of hydrogen gas, allowing even when not suffi ⁇ chender supply of hydrogen-containing fuel gas, for example from the gasifier, the mixture with hydrogen-containing fuel gas from other sources.
  • the storage device thus serves as a process-technical buffer.
  • an electrolysis plant which is designed for the decomposition of water into hydrogen and oxygen, and which is also fluidly connected to the Brennkam ⁇ mer, in order to conduct to this oxygen.
  • the electrolysis system is preferred at times exaggerated ⁇ be, exist to which current peaks in the electrical supply network, and the current can be taken relatively inexpensive off.
  • the electrolysis system is operated in this case the special ⁇ with excess energy and wind turbine or photovoltaic systems. Since the gasification in the gasifier requires oxygen as the reactant gas, which is purely ⁇ ses produce largely.
  • the electrolysis in an electrolysis system can hereby provide oxygen at high purity in order to supply the gasification process in the Verga ⁇ sungs announced.
  • a buffer can be fluidly connected between the electrolysis plant and the combustion chamber, which is designed to temporarily store oxygen which was generated by the electrolysis plant.
  • the buffer is designed as a membrane layer memory, in which there are approximately two volumetrically coupled storage spaces, which are separated by a displaceable membrane.
  • the separating tray may also be designed to be displaceable, wherein the separating tray does not have to be completely gastight and is also not a membrane.
  • the buffer is also fluidly connected to the gasification device, so that the gasification device can be supplied with oxygen with the intermediate buffer.
  • the supply of the gasification device by means of oxygen from the buffer thus also allows gasification at times when, for example, the electrolysis plant itself is not operated.
  • the electrolysis system with the storage device fluidly is connected, so that hydrogen, which was generated in the Elektro ⁇ lysestrom, the storage device can be fed.
  • the SpeI ⁇ chervoriques the temporal buffering of water-serstoff Anlagenm fuel gas, which is supplied to the combustion chamber serves nachfol ⁇ quietly.
  • the hydrogen-containing fuel gas was produced here for the most part initially from the gasification device. However, if this can not provide sufficient amounts of hydrogen, the hydrogen can also from the
  • Electrolysis system can be used additionally. Also no other groove ⁇ wetting of the hydrogen from the electrolysis system is provided in the context of the present power plant concept, so that this also the memory device can advantageously be fed additionally for energetic reasons. Nevertheless, it should be noted that the hydrogen obtained in the Elektrolyseanla ⁇ ge is typically of high purity, and possibly may be provided for other methods which provide a high demand on the purity of the hydrogen.
  • the electrolysis system can also be connected to a gas line network so that the hydrogen can be supplied to it from the electrolysis system. This could then be removed again for combustion in the combustion chamber.
  • the gas pipeline network may be a hydrogen pipeline network or the like, as already explained above.
  • an air separation plant is additionally included, which is designed to separate oxygen from the air, and the air separation plant is fluidly connected to the gasification ⁇ device, and forward this oxygen to the gasification.
  • this air separation plant similar to the electrolysis ⁇ plant operated at times, at which peak power in the electrical supply network exist.
  • the air separation plant can be fluidically interconnected with the intermediate storage, so that the oxygen produced by means of the air separation plant can be transferred into the intermediate storage. Consequently, the air separation plant serves to assist the provision of oxygen to the gasifier, such as when it can not be provided in sufficient quantities by the electrolysis plant.
  • the air separation plant can here also be operated, for example, as required by the oxygen to be supplied.
  • a heat storage is included, which is fluidly connected to the output of the steam turbine, and the Wär ⁇ me Grande is adapted to transfer heat to the steam turbine ⁇ discharged water.
  • this so thermally recycled water is added to the oxygen flow, which is supplied to the combustion chamber.
  • the water serves as a moderator to keep the combustion in the combustion chamber in a controlled combustion regime.
  • the heat accumulator can also be used for thermal conditioning (especially for reheating) of the steam before it is fed to the next part of the steam turbine.
  • the heat storage can also be additionally charged by an electric heater with heat.
  • the charging of the heat accumulator should then take place in particular during periods of standby operation of the steam turbine power plant.
  • a CLOSED ⁇ sener, or largely closed exhaust gas circulation can be created by the recirculation of the water from the steam turbine into the combustion chamber.
  • the heat accumulator is connected thermally in such a manner with the gasifier that heat from the Vergasungsein ⁇ direction can be supplied to the heat accumulator. These towards the heat produced can be utilized by the steam preparation ⁇ processing thus again, whereby the thermal energy we iquess ⁇ partially combustion in the combustion chamber is resupplied. This form of utilization of the thermal energy from the gasification device thus significantly increases the efficiency of the steam turbine power plant.
  • the heat storage can that be ⁇ conducts a power plant operations and industrial processes, supply them with heat and other processes.
  • the output of the steam turbine is fluidly connected to the combustion chamber, so that water can be redirected from the output of the steam turbine into the combustion chamber.
  • the output of the steam turbine may provide for the flow transport of water in this case also a feed pump ⁇ , wherein the feed pump is provided approximately at the output of the steam turbine to a condenser.
  • the oxygen can also be admixed from the exhaust gas flow of the steam turbine before being fed into the combustion chamber, so that only a total flow of the combustion chamber has to be supplied.
  • the water used in this case as already stated above, as Mo ⁇ derator of combustion in the combustion chamber. The re-opening of from the discharged water from the steam turbine is thus raw material gently and allows an efficient wetting of the groove ⁇ incurred as part of the power plant concept thermal energies.
  • Methanolization device can also as
  • Methanization be formed.
  • Other forms of fuel production are also conceivable and known in the art.
  • According to the execution of the steam turbine power plant can also be designed such that waste heat from the Methanolticians founded is supplied to the heat storage.
  • the methanolizer is preferably operated only at times of standby of the steam turbine power plant at full power.
  • the Methanolticians convinced enables the fabrication of a more valuable product, which et ⁇ wa can be used in the chemical industry or in power plant technology industry.
  • Methane and methanol are also suitable as fuels for gas turbines particularly well. Even more advantageously, the fuel can be used in fuel cells, since in these methanol can be burned directly and they have a high Wir ⁇ kungsgrad.
  • the starting materials for the methanolization are present in any case within the scope of the present power plant concept, such can also be operated particularly economically by incorporating these starting materials.
  • the case of heat liberated can be re-integrated into the vorlie ⁇ constricting cycle power plant to thereby Errei ⁇ chen a particularly efficient form of power plant operation.
  • the supply of the methanolization device from the storage device or the buffer also allows a time largely independent operation of
  • the single figure shows a schematic Wennan ⁇ view of an embodiment of the steam turbine power plant 1 according to the invention.
  • FIG. 1 shows a schematic representation of an embodiment of the steam turbine power plant 1 according to the invention, which in addition to a two-part steam turbine 10 also has a fluidically connected thereto combustion chamber 11.
  • the water-containing exhaust gases 15 of the combustion chamber 10 are in this case fed to the steam turbine 10 and serve there the conversion of thermal energy into rotational mechanical energy.
  • the electric power generation is by means of a Genera ⁇ sector (G, not provided in this case with reference numerals) he ⁇ ranges.
  • a hydrogen-containing fuel gas 25 is taken from a storage device 22.
  • oxygen is taken from an intermediate storage device 31, wherein the oxygen is supplied to the oxygen just before feeding into the combustion chamber 11 vaporous water, wel ⁇ Ches was thermally processed by means of heat from a heat storage 60. It is also conceivable that only part of the oxygen stream is supplied with vaporous water and the other part is supplied unmixed to the combustion chamber 11. The mixture of hydrogen-containing fuel gas 25 and oxygen 24 in conjunction with the vaporous water serving as a moderator in the combustion chamber 11 is burned in this combustion chamber 11 and generates a large amount of thermal heat present in the hydrous exhaust gas 15. This thermal heat is according to the steam turbine 10 in rotational mechanical energy, at least partially ⁇ example implemented.
  • the thermal heat is present also provided that the water-containing exhaust gas 15 after exiting the first part of the steam turbine 10 the Heat storage 60 is supplied, which ensures an intermediate superheating of the water-containing exhaust gas 15.
  • the water-containing exhaust gas 15 derived from this part is fed to a condenser 16, which serves as a cold source for lowering the turbine pressure.
  • the liquid water generated by means of the condenser 16 can be supplied to the heat accumulator 60 by means of a feed pump 17 for renewed thermal conditioning, which allows steam to be produced.
  • the storage device 22 which serves for the intermediate storage time of hydrogen-containing fuel gas can be supplied by various sources of hydrogen or water ⁇ stoff ambiencem fuel gas.
  • one hydrogen can be transferred from an electrolysis plant 30 in this memory ⁇ device 22, such as
  • the hydrogen in order to have present in the gasifier 20 in sufficiently pure form hydrogen from egg ⁇ ner gasification device 20, the hydrogen, this is to be separated accordingly by means of a separating device ,
  • separation device 21 and storage device 22 may alternatively or additionally be provided a connection point to a gas line network 50, wherein the removed from the gasification device 20
  • Hydrogen-containing fuel gas can be supplied to the gas pipeline network for the time ⁇ union caching. If required, a corresponding gas can also be withdrawn from this gas line network, which gas can be supplied to the storage device 22.
  • the storage device 22 as well as the connection point to the gas line ⁇ network 50 may be additionally or alternatively provided to each other in this case.
  • the buffer 31, from which the oxygen 24 is taken, and with which the combustion chamber 11 is supplied, can also be fed from different sources. So on the one hand is the oxygen from the electrolysis in the electrolysis system 30 useful in this horrspei ⁇ manuals, as well as oxygen from an air separation plant 40, which can be disassembled by means of electrical energy air 41 into its constituent parts and ⁇ also provide oxygen.
  • the buffer 31 as in this case, designed as a membrane layer memory, so is also a further storage space available, which corresponds to the intended for oxygen first storage space by printing technology.
  • This second storage space is presently provided for the storage of carbon dioxide CO 2 , which can also be separated and provided by means of the separation device 21.
  • the latch 31 may be approximately sufficiently filled, further generated überschüs ⁇ SiGe CO 2 can still be possibly discharged via a stack 26 to the environment, and are preferably pressed into underground reservoir (not shown here).
  • the gasification device 20 in turn requires for carrying out the gasification of fossil fuels oxygen 24, which is to be provided in sufficient quantities. This can be provided approximately directly via the air separation plant 40 or via the electrolysis plant 30, or in ⁇ directly via the buffer 31.
  • the resulting in the gasification in the gasification device 20 thermal energy (Q) can be removed from the product gas 23 of the gasification and for temporary storage in the heat storage 60 are introduced.
  • the heat accumulator can also be supplied with thermal energy from a methanolizing device 70, which can additionally be provided and allows the raw material methanol to be produced from the raw materials hydrogen and carbon dioxide in suitable catalytic processes.

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

Abstract

L'invention concerne une centrale à turbine à vapeur (1) comprenant une turbine à vapeur (10) ainsi qu'une chambre de combustion (11) reliée à ladite turbine de manière à établir une communication fluidique, de sorte que les effluents gazeux (15) sortant de la chambre de combustion (11) peuvent être introduits dans la turbine à vapeur (10), et comprenant également un dispositif de gazéification (20) destiné à produire un gaz combustible hydrogéné (25), le dispositif de gazéification (20) étant également relié à la chambre de combustion (11) de manière à établir une communication fluidique, de telle sorte que le gaz combustible hydrogéné (25) peut être amené à la chambre de combustion (11).
PCT/EP2016/067429 2015-09-25 2016-07-21 Centrale à turbine à vapeur avec combustion d'hydrogène et à dispositif de gazéification intégré Ceased WO2017050459A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015218502.8 2015-09-25
DE102015218502.8A DE102015218502A1 (de) 2015-09-25 2015-09-25 Dampfturbinenkraftwerk mit Wasserstoffverbrennung unter Einbindung einer Vergasungseinrichtung

Publications (1)

Publication Number Publication Date
WO2017050459A1 true WO2017050459A1 (fr) 2017-03-30

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PCT/EP2016/067429 Ceased WO2017050459A1 (fr) 2015-09-25 2016-07-21 Centrale à turbine à vapeur avec combustion d'hydrogène et à dispositif de gazéification intégré

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DE (1) DE102015218502A1 (fr)
WO (1) WO2017050459A1 (fr)

Cited By (1)

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US11732617B2 (en) 2020-01-29 2023-08-22 Siemens Energy Global GmbH & Co. KG Installation comprising an auxiliary module

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DE102017210324A1 (de) * 2017-06-20 2018-12-20 Mtu Friedrichshafen Gmbh Energiewandlungseinrichtung zur Umwandlung elektrischer Energie in chemische Energie, Stromnetz mit einer solchen Energiewandlungseinrichtung, und Verfahren zum Betreiben einer solchen Energiewandlungseinrichtung
DE102021202617A1 (de) * 2021-03-18 2022-09-22 Siemens Energy Global GmbH & Co. KG Verfahren zur Erzeugung von Wasserdampf mit definierten Dampfparametern
DE102023108158A1 (de) 2023-03-30 2024-10-02 Thyssenkrupp Steel Europe Ag Verfahren zum Betreiben einer Direktreduktionsanlage

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US20100077766A1 (en) * 2007-01-10 2010-04-01 Panuccio Gregory J Asu nitrogen sweep gas in hydrogen separation membrane for production of hrsg duct burner fuel
WO2009106027A2 (fr) * 2008-02-28 2009-09-03 Forschungszentrum Jülich GmbH Centrale électrique igcc à recyclage de gaz de fumée et à gaz de lavage
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DE102010036056A1 (de) * 2010-09-01 2012-03-01 Forschungszentrum Jülich GmbH IGCC-Kraftwerk mit einem Wassergas-Shift-Membranreaktor (WGS-MR) sowie Verfahren zum Betreiben eines solchen IGCC-Kraftwerks mit Spülgas
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