EP2382378A2 - Système d'alimentation en gaz de synthèse et procédé pour faire fonctionner un système d'alimentation en gaz de synthèse - Google Patents

Système d'alimentation en gaz de synthèse et procédé pour faire fonctionner un système d'alimentation en gaz de synthèse

Info

Publication number
EP2382378A2
EP2382378A2 EP10700530A EP10700530A EP2382378A2 EP 2382378 A2 EP2382378 A2 EP 2382378A2 EP 10700530 A EP10700530 A EP 10700530A EP 10700530 A EP10700530 A EP 10700530A EP 2382378 A2 EP2382378 A2 EP 2382378A2
Authority
EP
European Patent Office
Prior art keywords
synthesis gas
fuel system
line
gas storage
storage tank
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Withdrawn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
EP10700530A
Other languages
German (de)
English (en)
Inventor
Jens Keyser
Christian Brunhuber
Oliver Reimuth
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Priority to EP10700530A priority Critical patent/EP2382378A2/fr
Publication of EP2382378A2 publication Critical patent/EP2382378A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/067—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion heat coming from a gasification or pyrolysis process, e.g. coal gasification
    • 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
    • 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]
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/85938—Non-valved flow dividers

Definitions

  • the invention relates to a synthesis gas fuel system, in particular for a gas and steam turbine plant, and relates to the problem of rapid load changes of the gas turbine, as caused for example by the requirements of the British Grid Code see.
  • the invention further relates to a method for operating a synthesis gas fuel system for rapid load changes of a gas turbine in the synthesis gas operation.
  • IGCC gasification combined cycle power plants
  • IGCC Integrated Gasification Combined Cycle
  • the aim of the synthesis gas fuel system is to provide a conditioned synthesis gas corresponding to the temperature and calorific value requirements of the downstream consumer, the gas turbine, and the air-integrated case, to provide compressed air for integrated use in the air separation plant.
  • the conditioning and thus calorific value adjustment of the crude synthesis gas present at the entrance to the synthesis gas fuel system takes place via the abovementioned individual components / systems.
  • the temperature of the conditioned synthesis gas is adjusted prior to exiting the synthesis gas fuel system with a heat exchanger.
  • the compressed air is at (partially) integrated air extraction the gas turbine compressor, with non-integrated air extraction taken from a separate compressor and adjusted by means of integrated heat exchangers to the temperature required by the air separation plant.
  • DE 100 02 084 C2 describes such a system.
  • the synthesis gas fuel system Due to the interaction with the participating main systems of the IGCC (air separation plant, gasification, gas scrubbing, GUD), the synthesis gas fuel system is currently designed as a base loadable subsystem of the complete system, whereby steep load gradients of the gas turbine can not be realized by means of pure synthesis gas flow increase.
  • IGCC air separation plant, gasification, gas scrubbing, GUD
  • Synthesis gas fuel system are adapted as independently as possible and with little effect on the adjacent main systems to these changed boundary conditions.
  • the object of the invention is therefore to specify a synthesis gas fuel system for rapid load changes of the gas turbine, and to specify a method for operating such a system.
  • the object directed to a synthesis gas fuel system is achieved by a synthesis gas fuel system having a main synthesis gas line branching off from a gasification device, wherein a synthesis gas storage vessel is connected to the main synthesis gas line via a first secondary line.
  • the invention is therefore based on the idea to provide an additional fuel mass flow through a synthesis gas storage.
  • This invention is a buffer of the conditioned synthesis gas in a dedicated storage tank.
  • the function of the synthesis gas storage tank is to provide the conditioned synthesis gas mass flow necessary for a rapid load increase provide a temporary syngas barrier due to a limited load gradient of the gasifier.
  • the synthesis gas storage vessel is arranged in the flow direction of a synthesis gas in a downstream part of the synthesis gas fuel system.
  • a fast load increase of the complete IGCC system is coupled to the fast availability of the additionally usable fuel mass flow (synthesis gas) in conjunction with a sufficient calorific value.
  • a compressor for establishing the required pressure and a first control valve for regulating the volume of the synthesis gas or for regulating the pressure of the synthesis gas storage container are connected in the first secondary line.
  • the synthesis gas storage tank is connected via a second secondary line to the main synthesis gas line and a second control valve for the defined and rapid volume and pressure control of the effluent from the synthesis gas storage tank via the second secondary line in the synthesis gas main line synthesis gas, is connected in the second secondary line.
  • a closable drainage line branches off from the synthesis gas storage tank, so that in the case of a shutdown of the synthesis gas storage tank, it can be emptied of liquid condensates.
  • the synthesis gas reservoir is connected via a pressure monitor device with a torch.
  • the pressure monitor device with safety fitting secures the maximum permissible pressure of the synthesis gas in the synthesis gas storage tank against overflow. If the pressure in the synthesis gas storage tank rises, the safety valve allows the synthesis gas to escape to the flare, which burns the excess gases.
  • the inventive synthesis gas fuel system is connected in a gas and steam turbine with a gas turbine combustion chamber of the gas turbine, wherein the main synthesis gas line opens into the combustion chamber and wherein a saturator is connected in the main synthesis gas line and the synthesis gas storage tank between the saturator and the combustion chamber is switched.
  • a synthesis gas provided in excess is introduced into a synthesis gas storage tank and removed again from the synthesis gas storage tank as needed until a gasification facility can completely provide a required synthesis gas mass flow.
  • the conditioned synthesis gas is buffered in a dedicated storage tank.
  • the synthesis gas is conditioned prior to introduction into the synthesis gas storage tank, so that it at Need can be provided immediately in the right conditioning.
  • FIG. 1 shows a known synthesis gas fuel system and FIG. 2 shows a synthesis gas fuel system according to the invention with a synthesis gas storage tank.
  • a known gas and steam turbine plant comprises a gas turbine plant 1 according to FIG. 1 and a steam turbine plant (not shown).
  • the gas turbine plant 1 comprises a gas turbine 2 with a coupled air compressor 3 and a gas turbine 2 upstream combustion chamber 4, which is connected to a compressed air line 5 of the compressor 3.
  • the gas turbine 2 and the air compressor 3 and a generator 6 sit on a common shaft. 7
  • the gas turbine plant 1 is designed for operation with a degassed raw gas or synthesis gas SG, which is generated by the gasification of a fossil fuel B.
  • synthesis gas for example, gasified coal or gasified oil can be provided.
  • the gas turbine plant 1 comprises a synthesis gas fuel system 8, via which the combustion chamber 4 of the gas turbine 2 synthesis gas can be fed.
  • the synthesis gas fuel system 8 comprises a main synthesis gas line 9, which connects a gasification device 10 with the combustion chamber 4 of the gas turbine 2.
  • the gasification device 10 can be supplied via a feed system 11, for example coal, natural gas, oil or biomass, as fossil fuel B.
  • the synthesis gas fuel system 8 comprises components which are located between the gasification device 10 and the combustion chamber 4 of the Gas turbine 2 are connected in the main synthesis gas line 9.
  • the gasification device 10 is preceded by an air separation plant 13 via an oxygen line 12.
  • the air separation plant 13 can be acted upon on the inlet side with an air flow L, which is composed of a first partial flow Tl and a second partial flow T2.
  • the first partial flow Tl is the air compressed in the air compressor 3 removed.
  • the air separation plant 13 is connected on the input side to a bleed air line 14, which branches off at a branch point 15 from the compressed air line 5.
  • the total airflow L flowing in to the air separation plant 13 is composed of the partial flow Tl branched off from the compressed air line 5 (minus a subset T 'explained below) and of the air flow T2 conveyed by the additional air compressor 17.
  • Such a circuit concept is also referred to as a partially integrated system concept.
  • the so-called fully integrated system concept the further air line 16 together with the additional air compressor 17 can be dispensed with, so that the air separation plant 13 is supplied with air completely via the partial stream T 1 taken from the compressed air line 5.
  • a heat exchanger 31 is connected to recover heat from the extraction air again, whereby a particularly high efficiency of the gas and steam turbine plant can be achieved.
  • the nitrogen N2 obtained in the air separation plant 13 during the decomposition of the air flow L in addition to the oxygen O2 is fed to a mixing device 19 via a nitrogen line 18 connected to the air separation plant 13 and admixed there with the synthesis gas SG.
  • the mixing device 19 is designed for a particularly uniform and strand-free mixing of the nitrogen N2 with the synthesis gas SG.
  • the synthesis gas SG flowing away from the gasification device 10 first passes via the main synthesis gas line 9 into a synthesis gas waste heat steam generator 20 in which cooling of the synthesis gas SG takes place by heat exchange with a flow medium.
  • High-pressure steam generated in this heat exchange can be supplied in a manner not shown in detail to a high-pressure stage of a water-steam cycle of a steam turbine plant.
  • a dedusting device 21 for the synthesis gas SG Viewed in the flow direction of the synthesis gas SG behind the syngas heat recovery steam generator 20 and before a mixing device 19 are in the main synthesis gas 9 a dedusting device 21 for the synthesis gas SG and a
  • Desulfurization 22 switched.
  • a soot washing device instead of the dedusting device 21, in particular when gasifying oil as fuel, a soot washing device may also be provided.
  • a loading of the gasified fuel with water vapor before entering the combustion chamber 4 is provided.
  • This can be done in a particularly advantageous manner in terms of heat technology in a saturator system.
  • a saturator 23 is connected in the main synthesis gas line 9, in which the gasified fuel is passed in countercurrent to heated saturator water.
  • the Saturating water circulates in a saturator circuit 24 connected to the saturator 23 into which a circulating pump is circulated
  • a feed line 27 is connected to the saturator circuit 24.
  • a heat exchanger 28 which acts as a synthesis gas mixed gas heat exchanger is connected on the secondary side in the main synthesis gas line 9.
  • the heat exchanger 28 is also connected on the primary side at a point in front of the dedusting device 21 into the main synthesis gas line 9, so that the synthesis gas SG flowing in to the dedusting device 21 transfers part of its heat to the synthesis gas SG flowing out of the saturator 23.
  • the guidance of the synthesis gas SG via the heat exchanger 28 before entering the desulfurization system 22 can also be provided in the case of a modified circuit concept with regard to the other components.
  • the heat exchanger may preferably be arranged downstream of the soot washing device on the synthesis gas side.
  • a further heat exchanger 29 is connected in the main synthesis gas line 9 on the secondary side, which may be heated by feed water on the primary side or else may be steam-heated.
  • a saturator water heat exchanger 30th provided, the primary side with feed water from a feedwater tank, not shown, can be acted upon.
  • FIG. 2 describes the synthetic gas fuel system 8 according to the invention, in which conditioned synthesis gas is withdrawn before the combustion chamber 4 via a first secondary line 34 of the main synthesis gas line 9 during the synthesis gas operation, compressed to the accumulator pressure by means of a compressor 35 and into the synthesis gas storage vessel 33 is initiated.
  • Synthesis gas is withdrawn from the synthesis gas storage tank 33 via a second secondary line 37 via which the synthesis gas storage tank 33 is connected to the main synthesis gas line 9 and by means of a second control valve 38, which is connected in the second secondary line 37, to the defined and rapid quantity flow. and pressure control of the synthesis gas flowing from the synthesis gas storage tank 33 into the main synthesis gas pipe 9 to the predetermined gas turbine inlet pressure. To avoid condensation of the conditioned synthesis gas in the synthesis gas storage tank 33, it is heated during operation by means of heating and cooling
  • Isolation kept at a temperature with sufficient distance to the saturation line of the water in the synthesis gas. In the case of a shutdown of the synthesis gas storage tank 33, this is emptied via lockable drainage lines 39 of liquid condensates.
  • the pressure monitoring of the synthesis gas storage tank 33 for filling, storage and emptying with synthesis gas via a pressure monitor device 40 with safety fitting for blowing on the torch 41 when exceeding the allowable pressure.
  • the pressure in and the storage volume of the synthesis gas storage container 33 is defined by the required synthesis gas mass flow for rapid load changes of the gas turbine 2 until the gasification device 10 due to their limited Lastgradienten can completely provide the synthesis gas mass flow.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Industrial Gases (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

L'invention concerne un système d'alimentation en gaz de synthèse (8) qui comprend une conduite principale de gaz de synthèse (9) partant d'un dispositif de gazéification (10). Selon l'invention, un réservoir de gaz de synthèse (33) est relié à la conduite principale de gaz de synthèse (9) par une première conduite de dérivation (34). L'invention concerne en outre un procédé pour faire fonctionner ce système d'alimentation en gaz de synthèse (8).
EP10700530A 2009-01-26 2010-01-11 Système d'alimentation en gaz de synthèse et procédé pour faire fonctionner un système d'alimentation en gaz de synthèse Withdrawn EP2382378A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10700530A EP2382378A2 (fr) 2009-01-26 2010-01-11 Système d'alimentation en gaz de synthèse et procédé pour faire fonctionner un système d'alimentation en gaz de synthèse

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20090151350 EP2230389A1 (fr) 2009-01-26 2009-01-26 Système de combustible de gaz de synthèse et procédé de fonctionnement d'un système de combustible de gaz de synthèse
EP10700530A EP2382378A2 (fr) 2009-01-26 2010-01-11 Système d'alimentation en gaz de synthèse et procédé pour faire fonctionner un système d'alimentation en gaz de synthèse
PCT/EP2010/050186 WO2010084042A2 (fr) 2009-01-26 2010-01-11 Système d'alimentation en gaz de synthèse et procédé pour faire fonctionner un système d'alimentation en gaz de synthèse

Publications (1)

Publication Number Publication Date
EP2382378A2 true EP2382378A2 (fr) 2011-11-02

Family

ID=42356261

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20090151350 Withdrawn EP2230389A1 (fr) 2009-01-26 2009-01-26 Système de combustible de gaz de synthèse et procédé de fonctionnement d'un système de combustible de gaz de synthèse
EP10700530A Withdrawn EP2382378A2 (fr) 2009-01-26 2010-01-11 Système d'alimentation en gaz de synthèse et procédé pour faire fonctionner un système d'alimentation en gaz de synthèse

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20090151350 Withdrawn EP2230389A1 (fr) 2009-01-26 2009-01-26 Système de combustible de gaz de synthèse et procédé de fonctionnement d'un système de combustible de gaz de synthèse

Country Status (5)

Country Link
US (1) US20110277440A1 (fr)
EP (2) EP2230389A1 (fr)
CN (1) CN102292522A (fr)
RU (1) RU2011135565A (fr)
WO (1) WO2010084042A2 (fr)

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US20140130509A1 (en) * 2012-11-13 2014-05-15 Raymond Francis Drnevich Combined gasification and power generation
US9377202B2 (en) 2013-03-15 2016-06-28 General Electric Company System and method for fuel blending and control in gas turbines
US9382850B2 (en) 2013-03-21 2016-07-05 General Electric Company System and method for controlled fuel blending in gas turbines
DE102014212996A1 (de) * 2014-07-04 2016-01-07 Siemens Aktiengesellschaft Aufbau eines integrierten Kraftwerks zum Betrieb mit Ameisensäure und Betrieb eines integrierten Kraftwerks mit Ameisensäure
DE102016103053B4 (de) 2016-02-22 2018-10-31 Deutsches Zentrum für Luft- und Raumfahrt e.V. Gasbereitstellungsvorrichtung, Verfahren zum Bereitstellen von Synthesegas und Kraftwerk
CN113606869A (zh) * 2021-08-20 2021-11-05 中国联合重型燃气轮机技术有限公司 用于igcc的空分系统、igcc和igcc的控制方法
CN113671875B (zh) * 2021-08-20 2023-05-12 中国联合重型燃气轮机技术有限公司 Igcc和igcc的控制方法
CN113606868A (zh) * 2021-08-20 2021-11-05 中国联合重型燃气轮机技术有限公司 Igcc、igcc的控制方法和用于igcc的空分系统

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Also Published As

Publication number Publication date
WO2010084042A2 (fr) 2010-07-29
RU2011135565A (ru) 2013-03-10
WO2010084042A3 (fr) 2010-11-11
EP2230389A1 (fr) 2010-09-22
CN102292522A (zh) 2011-12-21
US20110277440A1 (en) 2011-11-17

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