CN102439273A - System and method for operating power generation systems - Google Patents

System and method for operating power generation systems Download PDF

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Publication number
CN102439273A
CN102439273A CN201080007842XA CN201080007842A CN102439273A CN 102439273 A CN102439273 A CN 102439273A CN 201080007842X A CN201080007842X A CN 201080007842XA CN 201080007842 A CN201080007842 A CN 201080007842A CN 102439273 A CN102439273 A CN 102439273A
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China
Prior art keywords
fuel
stream
gas
carbon
gas stream
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CN201080007842XA
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Chinese (zh)
Inventor
R·D·斯蒂尔
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General Electric Co
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General Electric Co
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/002—Removal of contaminants
    • C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
    • C10K1/004—Sulfur containing contaminants, e.g. hydrogen sulfide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46—Gasification of granular or pulverulent flues in suspension
    • C10J3/48—Apparatus; Plants
    • C10J3/50—Fuel charging devices
    • C10J3/506—Fuel charging devices for entrained flow gasifiers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/002—Removal of contaminants
    • C10K1/003—Removal of contaminants of acid contaminants, e.g. acid gas removal
    • C10K1/005—Carbon dioxide
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L3/00—Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
    • C10L3/06—Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
    • C10L3/10—Working-up natural gas or synthetic natural gas
    • C10L3/101—Removal of contaminants
    • 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
    • F01K23/068—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 in combination with an oxygen producing plant, e.g. an air separation plant
    • 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
    • F02C3/24—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 liquid at standard temperature and pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K1/00—Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
    • F23K1/04—Heating fuel prior to delivery to combustion apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00—Feeding or distributing other fuel to combustion apparatus
    • F23K5/02—Liquid fuel
    • F23K5/14—Details thereof
    • F23K5/20—Preheating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0903—Feed preparation
    • C10J2300/0909—Drying
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0959—Oxygen
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0973—Water
    • C10J2300/0976—Water as steam
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
    • C10J2300/1643—Conversion of synthesis gas to energy
    • C10J2300/1653—Conversion of synthesis gas to energy integrated in a gasification combined cycle [IGCC]
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1678—Integration of gasification processes with another plant or parts within the plant with air separation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
    • C10J2300/1861—Heat exchange between at least two process streams
    • C10J2300/1884—Heat exchange between at least two process streams with one stream being synthesis gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/86—Other features combined with waste-heat boilers
    • 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
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
    • F02C3/30—Adding water, steam or other fluids for influencing combustion, e.g. to obtain cleaner exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/20—Drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2201/00—Pretreatment of solid fuel
    • F23K2201/50—Blending
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2300/00—Pretreatment and supply of liquid fuel
    • F23K2300/10—Pretreatment
    • F23K2300/103—Mixing with other fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/05004—Mixing two or more fluid fuels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2900/00—Special features of, or arrangements for fuel supplies
    • F23K2900/05083—Separating watery fractions from liquid fuel
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

A method and system for supplying fuel are provided. The fuel supply system includes a supply of a flow of fuel wherein the fuel includes an amount of moisture in a first predetermined range, a supply of a flow of gas wherein the gas includes an amount of moisture in a second predetermined range and wherein the second predetermined range is less than the first predetermined range. The fuel supply system further includes a vessel configured to receive the flow of fuel and the flow of gas, mix the flow of fuel and the flow of gas, and separate the flow of fuel from the flow of gas wherein moisture is transferred from the flow of fuel to the flow of gas.

Description

Be used for the system and method that operand power produces system
Technical field
The present invention relates generally to power generation system, and relates more particularly to be used to the method and system that the Integrated gasification combined cycle power generation system provides fuel.
Background technique
The gas of the moistening entering gas turbine engine of at least some known power generation systems.Moisture in the humid gas tends to increase the quality that infeeds gas turbine engine, makes the increase of efficient of gas turbine engine be achieved.The moistening energy that utilizes of gas is added to the water in the gas stream with evaporation.In addition, power generation system also can dry be fed into the solid fuel in the vaporizer.Drying is typically carried out through before injecting vaporizer, inert gas flow is contacted with fuel.Water utilization in the fuel evaporates from the energy of fuel.Being used for the energy of humid gas is the efficient that loss and this loss of system are tended to reduce system with being used for the energy of dry fuel.
Summary of the invention
In one embodiment; Fuel system comprises the supply of fuel stream and the supply of gas stream; Wherein, fuel is included in a certain amount of moisture in first prespecified range, and a certain amount of moisture and second prespecified range that gas is included in second prespecified range are littler than first prespecified range.Fuel system also comprises container, and it is configured to receive fuel stream and gas stream, fuel combination stream and gas stream and fuel stream and gas flow point left, and wherein, moisture circulates from fuel and moves to gas stream.
In another embodiment; The method of operation fuel system comprises that receiving carbon-containing fuel flows; This fuel comprises the moisture of first quantity, and mix carbon-containing fuel stream and gas stream make the moisture of first quantity in the fuel reduce and gas in the moisture increase of second quantity.Gas stream comprise a certain amount of heat and during mixing at least some in this a certain amount of heat be transferred to fuel stream.
In another embodiment, the Integrated gasification combined cycle power system comprises the fuel exsiccator, and it is configured to receive fuel stream, receives fluid stream, moisture is transferred to gas and heat is transferred to fuel from gas from fuel.
Description of drawings
Fig. 1-3 illustrates the example embodiment of method and system described herein.
Fig. 1 is the schematic representation of demonstration Integrated gasification combined-circulation (IGCC) power generation system;
Fig. 2 is the schematic block diagram according to the part of Integrated gasification combined-circulation (IGCC) power generation system of one embodiment of the invention; And
Fig. 3 is the schematic block diagram of the part of Integrated gasification combined-circulation (IGCC) power generation system according to another embodiment of the present invention.
Embodiment
The mode of below describing in detail by way of example rather than limiting illustrates embodiments of the invention.Be contemplated that the present invention has extensive use with through in the application of industry, commerce and family, being used to come conserve energy from the waste heat of the part of technology with the heat of the other part of replacement technology.
With regard to used herein, propose and the preceding element of wearing word " " or " one " or step are construed as and do not get rid of a plurality of elements or step with odd number, only if this eliminatings is by proposition clearly.In addition, the reference to " embodiment " of the present invention is not intended to be interpreted as the existence that eliminating also has the other embodiment of the characteristic that proposes.
Fig. 1 is the schematic diagram of demonstration Integrated gasification combined-circulation (IGCC) power generation system 10.IGCC system 10 generally include air gas separation unit (ASU) 14 that main air compressor 12, fluid be connected to compressor 12 with being communicated with, vaporizer 16 that fluid is connected to ASU 14 with being communicated with, syngas cooler 18 that fluid is connected to vaporizer 16 with being communicated with, the fluid connection be connected to syngas cooler 18 gas turbine engine 20 and fluid connection be connected to the steamturbine 22 of syngas cooler 18.In various embodiment, vaporizer 16 is unified into single whole container with syngas cooler 18.
In operation, compressor 12 compressions are introduced into the ambient air of ASU 14 subsequently.In example embodiment, except that pressurized air, also be fed to ASU 14 from the pressurized air of the compressor 24 of gas turbine engine from compressor 12.Alternatively; Pressurized air from the compressor 24 of gas turbine engine is fed to ASU 14; Rather than be fed to ASU 14 from the pressurized air of compressor 12, in example embodiment, ASU 14 utilizes pressurized air to produce by the used oxygen of vaporizer 16.More specifically, ASU 14 separates into independent oxygen (O with pressurized air 2) stream and byproduct gas stream, byproduct gas stream is known as " process gas " sometimes.O 2Stream is introduced into the gas that vaporizer 16 is used to produce the part after-flame, is called " synthetic gas " among this paper, and it acts as a fuel and is used by gas turbine engine 20, will describe in more detail like hereinafter.
The process gas that is produced by ASU 14 comprises nitrogen and will be known as " nitrogen process gas " in this article (NPG).NPG also can comprise other gas, such as but be not limited to oxygen and/or argon gas.For example, in example embodiment, NPG is included in the nitrogen between about 95% and about 100%.In example embodiment; At least some NPG streams are discharged to atmosphere from ASU 14; And at least some NPG streams are infused in the burner 26 interior zone of combustion (not shown) of gas turbine engine so that control the discharging of motor 20, and more specifically so that reduce FT and the discharging that reduces from the nitrogen oxide of motor 20.In example embodiment, IGCC system 10 comprises the compressor 28 that is used for compressed nitrogen flow of process gas before the nitrogen flow of process gas is injected the zone of combustion of burner 26 of gas turbine engine.
In example embodiment, vaporizer 16 will be from supply of fuel 30 supplied fuel, by the O of ASU 14 supply 2, the mixture that constitutes of steam and/or limestone converts the output of synthetic gas to, it acts as a fuel and is used by gas turbine engine 20.Though vaporizer 16 any fuels capable of using, in example embodiment, vaporizer 16 utilizes coal, petroleum coke, Residual oil, oil emu, tar sand and/or other similar fuel.In addition, in example embodiment, the synthetic gas that is produced by vaporizer 16 comprises carbon dioxide.Vaporizer 16 can be fixed bed gasifiers, fluidized-bed gasifier and/or entrained flow gasifiers (entrained gasifier).
In example embodiment, the synthetic gas that is produced by vaporizer 16 is introduced into syngas cooler 18 so that cooling down forming gas will be described as hereinafter in more detail.The synthetic gas of cooling is incorporated into washing machine from syngas cooler 18, and gets into cleaning equipment 32 through extra cooling, and the burner 26 that is used for being introduced in gas turbine engine at synthetic gas is to be used for cleaning synthetic gas before its burning.Hydrogen sulfide (H 2S) during purifying, separate and be transported to processing unit, convert product to, typically be sulphur or sulfuric acid at this processing unit place hydrogen sulfide from synthetic gas.Carbon dioxide (CO 2) also can during purifying, separate from synthetic gas, and in example embodiment, also can be discharged to atmosphere.Gas turbine engine 20 drives the generator 34 of supplied with electric power to the electrical network (not shown).Exhaust from gas turbine engine 20 is incorporated into heat recovery steam generator 36, and it produces steam and makes steam superheating to drive steamturbine 22.The power drive that is produced by steamturbine 22 provides the generator 38 of electric power to electrical network.
In addition, in example embodiment, system 10 comprises pump 40, and it will be fed to syngas cooler 18 from the water of the preheating of steam generator 36 so that the synthetic gas that cooling is introduced from vaporizer 16.The water that boils is introduced through syngas cooler 18, and wherein water converts steam to.Get back to steam generator 36 subsequently in vaporizer 16, syngas cooler 18 and/or steamturbine 22, to use from the steam of syngas cooler 18.
Fig. 2 is the schematic block diagram according to the part of Integrated gasification combined-circulation (IGCC) power generation system 10 (shown in Fig. 1) of one embodiment of the invention.In example embodiment, IGCC power generation system 10 comprises fuel exsiccator 200, and its serial fluid between supply of fuel 30 and vaporizer 16 is communicated with.Also serial fluid connection between syngas cooler 18 and cleaning equipment 32 of fuel exsiccator 200.Fuel exsiccator 200 is configured to receive from the cold and moist relatively fuel stream of supply of fuel 30 with from the relatively hot of syngas cooler 18 and dry synthetic gas stream.Synthetic gas stream and fuel stream are impelled in fuel exsiccator 200 to mix, and make synthetic gas and fuel be able to closely contact each other.At tight period of contact, heat is transferred to fuel from synthetic gas, thereby is drawn fuel exsiccator 200 and enter vaporizer 16 dry fuel before at fuel.At tight period of contact, moisture is transferred to synthetic gas from fuel equally, thereby before synthetic gas is drawn fuel exsiccator 200 and entered cleaning equipment 32 and burner 26, makes synthetic gas moist.In one embodiment, be provided at the auxiliary cleaning equipment 202 that the serial fluid is communicated with between fuel exsiccator 200 and the cleaning equipment 32.The tight period of contact that auxiliary cleaning equipment 202 is configured to remove at fuel and synthetic gas is entrained in solid and particulate in the synthetic gas in the fuel exsiccator 200.
Fig. 3 is the schematic block diagram of the part of Integrated gasification combined-circulation (IGCC) power generation system 10 (shown in Fig. 1) according to another embodiment of the present invention.In this example embodiment, IGCC power generation system 10 is included in the fuel exsiccator 200 that the serial fluid is communicated with between supply of fuel 30 and the vaporizer 16.Also serial fluid connection between air gas separation unit (ASU) 14 and burner 26 of fuel exsiccator 200.Fuel exsiccator 200 is configured to receive from the cold and moist relatively fuel stream of supply of fuel 30 with from the relatively hot of ASU 14 and dry nitrogen process gas (NPG) stream.NPG stream and fuel stream are impelled in fuel exsiccator 200 to mix, and make NPG and fuel be able to closely contact each other.At this tight period of contact, heat is transferred to fuel from NPG, thereby is drawn fuel exsiccator 200 and enter vaporizer 16 pre-heating fuel before at fuel.At this tight period of contact, moisture is transferred to NPG from fuel equally, thereby before NPG is drawn fuel exsiccator 200 and enters burner 26, makes NPG moist.In one embodiment, be provided at the auxiliary cleaning equipment 202 that the serial fluid is communicated with between fuel exsiccator 200 and the burner 26.The tight period of contact that subsequent use auxiliary cleaning equipment 202 is configured to remove at fuel and NPG is entrained in solid and particulate in the NPG in the fuel exsiccator 200.In various embodiment, if utilize, compressor 28 serial fluids are positioned between fuel exsiccator 200 and the auxiliary cleaning equipment 202 with being communicated with.Compressor 28 is used for before the zone of combustion of the burner 26 of NPG stream injection gas turbine engine, compressing NPG stream.
Though preheating of fuel is described as synthetic gas and/or NPG hereinbefore with dry source, should be appreciated that the gas source of any relatively dry can get into the fuel stream of vaporizer 16 in order to drying and/or preheating.In addition, fuel is stored in funnel or jar before can and injecting vaporizer 16 after drying.In example embodiment, fuel exsiccator 200 comprises fixed container.In optional embodiment, fuel exsiccator 200 comprises can be around the removable container of longitudinal axis rotation.
The embodiment of the method and system of above-described power generation system can be that heat to the loss of system is carried out useful work through utilizing originally, provides and practices thrift cost and reliable means, thereby increase the efficient of power generation system.More specifically, method and system described herein be convenient to utilize the energy that originally will be used to from system cool off with moistening relatively hot and dry technology in gas come dry moist relatively fuel.In addition, above-described method and system is convenient to utilize and originally will be come humid gas from the moisture that system emits.Therefore, method and system described herein is convenient to increase with saving cost and reliable mode the efficient of power generation system.
Above-detailed demonstration methods and device, it is used to utilize the gas of the gas turbine engine that infeeds power generation system to come the fuel in the dry power generation system, to increase the mass flow through gas turbine engine.The system that illustrates is not limited to specific embodiment described herein, and on the contrary, each embodiment's member can the independent and use respectively with other member described herein.Each component of a system also can be united use with other component of a system.
Though the disclosure is described according to different specific embodiments, should be realized that the disclosure can be implemented having under the situation of the spirit of claim and the modification in the scope.

Claims (20)

1. fuel system comprises:
The supply of fuel stream, said fuel is included in a certain amount of moisture in first prespecified range;
The gas stream supply, said gas is included in a certain amount of moisture in second prespecified range, and said second prespecified range is littler than said first prespecified range; With
Container, it is configured to:
Receive said fuel stream and said gas stream;
Mix said fuel stream and said gas stream; With
Said fuel stream is separated with said gas stream;
Wherein, moisture moves to said gas stream from said fuel circulation.
2. system according to claim 1 is characterized in that, heat is transferred to said fuel stream from said gas stream.
3. system according to claim 1 is characterized in that said container comprises longitudinal axis, and said container can be around said longitudinal axis rotation.
4. system according to claim 1 is characterized in that, said gas stream comprises nitrogen stream.
5. system according to claim 1 is characterized in that, said fuel stream comprises carbon-containing fuel stream.
6. system according to claim 1 is characterized in that, said fuel stream comprises at least one the stream in solid carbon-containing fuel and the liquid carbon-containing fuel.
7. system according to claim 1 is characterized in that, said gas stream comprises synthetic gas stream.
8. system according to claim 1 is characterized in that, also comprises said container downstream purification equipment, and said cleaning equipment is configured to remove from the gas stream that leaves said container the particulate of fuel.
9. method of operating fuel system, said method comprises:
Reception carbon-containing fuel stream, said fuel comprises the moisture of first quantity; With
Mix said carbon-containing fuel stream and gas stream; Make the moisture of first quantity in the said fuel reduce and said gas in the moisture of second quantity increase; Said gas stream comprises a certain amount of heat; Wherein, at least some in said a certain amount of heat are transferred to said fuel stream between said mixing period.
10. method according to claim 9 is characterized in that, receives carbon-containing fuel stream and comprises that receiving coal flows.
11. method according to claim 9 is characterized in that, mixes said carbon-containing fuel stream and comprises said carbon-containing fuel stream of mixing and nitrogen stream.
12. method according to claim 9 is characterized in that, mixes said carbon-containing fuel stream and gas stream and comprises said carbon-containing fuel stream of mixing and synthetic gas stream.
13. method according to claim 9 is characterized in that, mixes said carbon-containing fuel stream and gas stream and is included in said carbon-containing fuel stream of mixing and gas stream in the container.
14. method according to claim 9 is characterized in that, mixes said carbon-containing fuel stream and gas stream mixing and is included in said carbon-containing fuel stream of mixing and gas stream in the container, said container can be around the longitudinal axis rotation of said container.
15. an Integrated gasification combined cycle power system, it comprises the fuel exsiccator, and the said fuel exsiccator of stating is configured to:
Reception fuel stream;
Reception fluid stream;
Moisture is transferred to said gas from said fuel; And
Heat is transferred to said fuel from said gas.
16. system according to claim 15 is characterized in that, also comprises separator, it is configured at least a portion and the said fluid flow point of said fuel stream are left.
17. system according to claim 15 is characterized in that, said fuel exsiccator comprises longitudinal axis, and said fuel exsiccator can be around said longitudinal axis rotation.
18. system according to claim 15 is characterized in that, said fluid stream comprises at least one the stream in solid carbon-containing fuel and the liquid carbon-containing fuel.
19. system according to claim 15 is characterized in that, said fluid stream comprises synthetic gas stream.
20. system according to claim 15 is characterized in that, said separator is positioned at the downstream of said fuel exsiccator, and said separator is configured to drift except that the particulate of fuel from the fluid that leaves said fuel exsiccator.
CN201080007842XA 2009-02-10 2010-01-25 System and method for operating power generation systems Pending CN102439273A (en)

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US12/368,631 US20100199558A1 (en) 2009-02-10 2009-02-10 System and method for operating power generation systems
PCT/US2010/021918 WO2010093512A2 (en) 2009-02-10 2010-01-25 System and method for operating power generation systems

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