JP2017160790A - Power generating facility using nh3 as fuel - Google Patents

Power generating facility using nh3 as fuel Download PDF

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JP2017160790A
JP2017160790A JP2016043118A JP2016043118A JP2017160790A JP 2017160790 A JP2017160790 A JP 2017160790A JP 2016043118 A JP2016043118 A JP 2016043118A JP 2016043118 A JP2016043118 A JP 2016043118A JP 2017160790 A JP2017160790 A JP 2017160790A
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JP6717538B2 (en
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長谷川　武治
Takeji Hasegawa
武治 長谷川
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Central Research Institute of Electric Power Industry
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Abstract

PROBLEM TO BE SOLVED: To eliminate the need of denitration equipment even when using NHas fuel, and significantly suppress discharge of unburned NHand NOwithout a decline in power generation efficiency.SOLUTION: A power generating facility includes regenerating means 25 for oxidizing and decomposing unburned NHinto Nin an exhaust passage 21. The regenerating means 25 decomposes unburned NHinto Nto reduce the unburned NHeven when burning fuel containing NHby a combustor 3.SELECTED DRAWING: Figure 1

Description

本発明は、ＮＨ３を燃料とした発電設備に関する。 The present invention relates to a power generation facility using NH 3 as a fuel.

従来、燃料の燃焼によりガスタービンの動力を得る発電設備が知られている。例えば、天然ガスを燃料として燃焼ガスを得て、燃焼ガスをガスタービンで膨張させることで発電動力を得る発電設備が知られている（例えば、特許文献１参照）。一方、Ｈ２の輸送・貯蔵媒体（キャリア）としてＮＨ３が適用されており、Ｈ２に変換することなく発電設備の燃料としてＮＨ３を直接用いることができれば、熱効率の大幅な向上が期待できる。 2. Description of the Related Art Conventionally, power generation equipment that obtains power from a gas turbine by burning fuel is known. For example, a power generation facility is known in which combustion gas is obtained using natural gas as fuel, and power is generated by expanding the combustion gas with a gas turbine (see, for example, Patent Document 1). On the other hand, H NH 3 is applied as the second transportation and storage media (carriers), if it is possible to use NH 3 directly as a fuel for power generation equipment without converting the H 2, a significant improvement in thermal efficiency can be expected .

しかし、ＮＨ３は着火しにくく、燃焼速度が遅く、燃焼過程でＮＯＸが生成される等の問題があった。このため、未燃のＮＨ３の扱いや、ＮＯＸの処理などを行うために、特別な制御や特別な機器が必要となり、ＮＨ３を燃料にした発電設備は実用化には至っていないのが現状であった。 However, NH 3 is difficult to ignite, the combustion speed is slow, and NO X is generated in the combustion process. For this reason, special control and special equipment are required to handle unburned NH 3 , NO X treatment, etc., and power generation facilities using NH 3 as fuel have not been put into practical use. It was the current situation.

特開２００６−３４８７５５号公報JP 2006-348755 A

本発明は上記状況に鑑みてなされたもので、ＮＨ３を燃料として使用しても、発電効率を低下させることなく、未燃のＮＨ３、及び、ＮＯＸの排出を大幅に抑制することができるＮＨ３を燃料とした発電設備を提供することを目的とする。 The present invention has been made in view of the above situation, and even if NH 3 is used as a fuel, it is possible to significantly suppress the emission of unburned NH 3 and NO X without reducing the power generation efficiency. An object is to provide a power generation facility using NH 3 as a fuel.

上記目的を達成するための請求項１に係る本発明のＮＨ３を燃料とした発電設備は、Ｏ２含有ガス、及び、ＮＨ３燃料を含む燃料を燃焼させて燃焼ガスを得る燃焼器と、前記燃焼器で得られた前記燃焼ガスを膨張させて動力を得るガスタービンと、未燃状態のＮＨ３を酸化させてＮ２に分解する酸化手段とを備えたことを特徴とする。 In order to achieve the above object, a power generation facility using NH 3 as a fuel of the present invention according to claim 1 according to the present invention comprises an O 2 containing gas and a combustor for obtaining a combustion gas by burning a fuel containing NH 3 fuel, A gas turbine that obtains power by expanding the combustion gas obtained by the combustor, and an oxidizing means that oxidizes unburned NH 3 to decompose it into N 2 are provided.

請求項１に係る本発明では、未燃状態のＮＨ３を酸化させてＮ２に分解する酸化手段を備えたので、ＮＨ３を含む燃料を燃焼器で燃焼させても、未燃状態のＮＨ３をＮ２に分解することができる。このため、未燃状態のＮＨ３を減少させることができ、ＮＨ３を燃料として使用しても、脱硝設備が不要になり、発電効率を低下させることなく、未燃のＮＨ３、及び、ＮＯＸの排出を大幅に抑制することが可能になる。 In the present invention according to claim 1, since the oxidation means for oxidizing the unburned NH 3 and decomposing it into N 2 is provided, even if the fuel containing NH 3 is burned in the combustor, the unburned NH 3 3 can be decomposed into N 2 . For this reason, unburned NH 3 can be reduced, and even if NH 3 is used as fuel, denitration equipment is not required, and unburned NH 3 and NO are not reduced without reducing power generation efficiency. X emission can be greatly suppressed.

因みに、特開２０１５−９４４９６号公報には、多段の燃焼器の後段側にＮＨ３を投入するガスタービン発電装置が開示されている。特許文献に開示された技術は、ＮＨ３を燃焼器に供給しているが、ＮＨ３を燃料として燃焼器に供給する技術ではない。即ち、ＮＨ３を含まない燃料で燃焼ガスを得る技術であり、燃焼器の後段側にＮＨ３を供給することで、燃焼時に生成されたＮＯＸを低減する技術である。このため、請求項１に係る本願発明は、ＮＨ３を含む燃料を燃焼させて燃焼ガスを得る燃焼器を備えた設備であり、特許文献とは異なる技術である。 Incidentally, Japanese Patent Laying-Open No. 2015-94496 discloses a gas turbine power generator in which NH 3 is introduced to the rear stage side of a multistage combustor. The technology disclosed in the patent document supplies NH 3 to the combustor, but is not a technology that supplies NH 3 to the combustor as fuel. That is, this is a technique for obtaining combustion gas with a fuel that does not contain NH 3 , and a technique for reducing NO X generated during combustion by supplying NH 3 to the rear stage side of the combustor. For this reason, the present invention according to claim 1 is a facility including a combustor that burns a fuel containing NH 3 to obtain combustion gas, and is a technique different from the patent literature.

そして、請求項２に係る本発明のＮＨ３を燃料とした発電設備は、請求項１に記載のＮＨ３を燃料とした発電設備において、前記酸化手段は、前記ガスタービンの排気系統に備えられ、排気ガス中の未燃状態のＮＨ３が、ＮＯＸと反応して分解される再生手段であることを特徴とする。 The power generating plant of NH 3 of the present invention according to claim 2 as fuel in the power generating plant in which the NH 3 according to the fuel to claim 1, wherein the oxidation means is provided in an exhaust system of the gas turbine Further, it is a regenerating means in which unburned NH 3 in the exhaust gas reacts with NO X and is decomposed.

請求項２に係る本発明では、ガスタービンの排気系統で、排気ガス中の未燃状態のＮＨ３が、ＮＯＸと反応して分解される。 In the present invention according to claim 2, unburned NH 3 in the exhaust gas reacts with NO X and is decomposed in the exhaust system of the gas turbine.

また、請求項３に係る本発明のＮＨ３を燃料とした発電設備は、請求項２に記載のＮＨ３を燃料とした発電設備において、前記再生手段にＯ２含有ガスを供給する酸化剤供給手段を備えたことを特徴とする。 Also, power generating plant and NH 3 of the present invention according to claim 3 as fuel is the power generating plant in which the NH 3 according to the fuel to claim 2, oxidant supply for supplying an O 2 containing gas to said reproducing means Means are provided.

請求項３に係る本発明では、酸化剤供給手段から再生手段にＯ２含有ガスを供給することで、Ｏ２の共存下で未燃状態のＮＨ３とＮＯＸを反応させることができる。燃焼条件等により、Ｏ２の量が減少するので、もしくは、Ｏ２がゼロになるので、酸化剤供給手段からＯ２含有ガスを供給し、Ｏ２の共存下で未燃状態のＮＨ３とＮＯＸを反応させることができる。 With the present invention according to claim 3, by supplying O 2 containing gas to the reproducing means from the oxidizing agent supply unit, it can be reacted with NH 3 and NO X in the unburned state in the presence of O 2. Since the amount of O 2 decreases due to combustion conditions or the like, or O 2 becomes zero, an O 2 -containing gas is supplied from the oxidant supply means, and NH 3 in an unburned state in the presence of O 2 NO X can be reacted.

また、請求項４に係る本発明のＮＨ３を燃料とした発電設備は、請求項３に記載のＮＨ３を燃料とした発電設備において、前記Ｏ２含有ガスを得る圧縮機を備え、前記酸化剤供給手段は、前記圧縮機で得られたＯ２含有ガスの一部を供給する手段であることを特徴とする。 According to a fourth aspect of the present invention, there is provided a power generation facility using NH 3 as a fuel of the present invention. The power generation facility using NH 3 as a fuel according to the third aspect includes a compressor for obtaining the O 2 -containing gas, and the oxidation The agent supply means is a means for supplying a part of the O 2 -containing gas obtained by the compressor.

請求項４に係る本発明では、発電設備の系内の圧縮機で得られたＯ２含有ガスの一部を再生手段に供給することができる。 In the present invention according to claim 4, a part of the O 2 containing gas obtained by the compressor in the system of the power generation facility can be supplied to the regeneration means.

また、請求項５に係る本発明のＮＨ３を燃料とした発電設備は、請求項１に記載のＮＨ３を燃料とした発電設備において、前記酸化手段は、前記燃焼器を複数段に構成し、後段側の燃焼器で、前段側での燃焼が行われない未燃状態のＮＨ３が、ＮＯＸと反応して分解されることを特徴とする。 Further, the NH 3 of the present invention power plant was fueled according to claim 5, the power generating plant in which the NH 3 according to the fuel to claim 1, wherein the oxidation means constitutes the combustor in a plurality of stages In the combustor at the rear stage, unburned NH 3 that is not combusted at the front stage reacts with NO X and is decomposed.

請求項５に係る本発明では、ガスタービンの燃焼器の系統で、燃焼ガス中の未燃状態のＮＨ３が、ＮＯＸと反応して分解される。 In the present invention according to claim 5, unburned NH 3 in the combustion gas is decomposed by reacting with NO X in the system of the combustor of the gas turbine.

また、請求項６に係る本発明のＮＨ３を燃料とした発電設備は、請求項５に記載のＮＨ３を燃料とした発電設備において、複数段に構成された前記燃焼器に、Ｏ２含有ガスを供給する酸化剤供給手段を備えたことを特徴とする。 Further, the NH 3 of the present invention power plant was fueled according to claim 6, the power generating plant in which the NH 3 according to the fuel to claim 5, said combustor configured in a plurality of stages, O 2 content An oxidant supply means for supplying a gas is provided.

請求項６に係る本発明では、酸化剤供給手段から複数段に構成された燃焼器にＯ２含有ガスを供給することで、Ｏ２の共存下で未燃状態のＮＨ３とＮＯＸを反応させることができる。燃焼条件等により、Ｏ２の量が減少するので、もしくは、Ｏ２がゼロになるので、例えば、量論比燃焼が実施される場合、酸化剤供給手段からＯ２含有ガスが供給される状態になり、Ｏ２の共存下で未燃状態のＮＨ３とＮＯＸを反応させることができる。 In the present invention according to claim 6, unburned NH 3 and NO X are reacted in the coexistence of O 2 by supplying an O 2 -containing gas from an oxidant supply means to a combustor configured in multiple stages. Can be made. Since the amount of O 2 decreases due to combustion conditions or the like, or O 2 becomes zero, for example, when stoichiometric combustion is performed, a state in which an O 2 -containing gas is supplied from the oxidant supply means Thus, NH 3 and NO X in an unburned state can be reacted in the presence of O 2 .

また、請求項７に係る本発明のＮＨ３を燃料とした発電設備は、請求項６に記載のＮＨ３を燃料とした発電設備において、前記Ｏ２含有ガスを得る圧縮機を備え、前記酸化剤供給手段は、前記圧縮機で得られたＯ２含有ガスの一部を供給する手段であることを特徴とする。 Also, power generating plant and NH 3 as fuel of the present invention according to claim 7, the power generating plant in which the NH 3 according to the fuel to claim 6, comprising a compressor for obtaining the O 2 containing gas, said oxidation The agent supply means is a means for supplying a part of the O 2 -containing gas obtained by the compressor.

請求項７に係る本発明では、発電設備の系内の圧縮機で得られたＯ２含有ガスの一部を複数段に構成された燃焼器に供給することができる。 With the present invention according to claim 7, it can be supplied to the combustor configured in a plurality of stages a part of the O 2 containing gas obtained in the compressor in the system of power generation equipment.

また、請求項８に係る本発明のＮＨ３を燃料とした発電設備は、請求項５もしくは請求項６のいずれか一項に記載のＮＨ３を燃料とした発電設備において、複数段に構成された前記燃焼器に、ＮＨ３を供給するＮＨ３供給手段を備えたことを特徴とする。 The power generation facility using NH 3 as fuel according to the present invention according to claim 8 is configured in a plurality of stages in the power generation facility using NH 3 as fuel according to any one of claim 5 or claim 6. in said combustor, characterized by comprising a NH 3 supply means for supplying NH 3.

請求項８に係る本発明では、ＮＨ３供給手段から、複数段に構成された燃焼器にＮＨ３を供給することができ、ＮＯＸの量が多くなっても（未燃状態のＮＨ３が相対的に減少しても）ＮＯＸを分解することができる。 In the present invention according to claim 8, the NH 3 supply unit, a plurality stages NH 3 can be supplied to the combustor configured to, even if a lot amount of NO X (NH 3 unburned NO X can be decomposed (even if relatively reduced).

また、請求項９に係る本発明のＮＨ３を燃料とした発電設備は、請求項８に記載のＮＨ３を燃料とした発電設備において、前記ＮＨ３供給手段は、燃焼ガスを得るためのＮＨ３燃料の一部を供給する手段であることを特徴とする。 Also, power generating plant and NH 3 as fuel of the present invention according to claim 9, the power generating plant which NH 3 was a fuel according to claim 8, wherein the NH 3 supply means, NH for obtaining combustion gases 3 A means for supplying a part of fuel.

請求項９に係る本発明では、発電設備の系内のＮＨ３燃料の供給手段から、複数段に構成された燃焼器にＮＨ３を供給することができる。 In the present invention according to claim 9, the supply means of NH 3 fuel in the system of power generation equipment, it is possible to supply NH 3 to combustor configured in a plurality of stages.

本発明のＮＨ３を燃料とした発電設備は、ＮＨ３を燃料として使用しても、発電効率を低下させることなく、未燃のＮＨ３、及び、ＮＯＸの排出を大幅に抑制することが可能になる。 Power generating plant and NH 3 of the present invention is used as a fuel, the use of NH 3 as fuel, power generation without reducing the efficiency of the unburned NH 3, and, is possible to significantly suppress the emission of the NO X It becomes possible.

本発明の第１実施例に係るＮＨ３を燃料とした発電設備の概略図である。1 is a schematic view of a power generation facility using NH 3 as a fuel according to a first embodiment of the present invention. 本発明の第２実施例に係るＮＨ３を燃料とした発電設備の概略図である。The NH 3 according to the second embodiment of the present invention is a schematic diagram of a power generation plant as fuel. 本発明の第３実施例に係るＮＨ３を燃料とした発電設備の概略図である。It is the schematic of the power generation equipment which used NH3 as the fuel which concerns on 3rd Example of this invention. 本発明の第４実施例に係るＮＨ３を燃料とした発電設備の概略図である。The NH 3 according to the fourth embodiment of the present invention is a schematic diagram of a power generation plant as fuel.

図１から図４に基づいて本発明の第１実施例から第４実施例を説明する。図１から図４には、本発明の第１実施例から第４実施例に係るＮＨ３を燃料とした発電設備の概略系統を示してある。 The first to fourth embodiments of the present invention will be described with reference to FIGS. 1 to 4 show a schematic system of power generation equipment using NH 3 as fuel according to first to fourth embodiments of the present invention.

（第１実施例）
図１に基づいて、本発明の第１実施例に係るＮＨ３を燃料とした発電設備（以下「発電プラント」と記す）を説明する。図１に示すように、発電プラント１は、圧縮機２、燃焼器３、タービン４（ガスタービン）を備えたガスタービン設備５を備えている。ガスタービン設備５には発電機６が同軸状に設けられている。燃焼器３には圧縮機２で圧縮された圧縮空気（Ｏ２含有ガス）と、天然ガス等の燃料が供給される。そして、燃焼器３には、天然ガスに加えて、ＮＨ３燃料タンク７からのＮＨ３が燃料として供給される。 (First embodiment)
Based on FIG. 1, a power generation facility using NH 3 as fuel (hereinafter referred to as “power generation plant”) according to a first embodiment of the present invention will be described. As shown in FIG. 1, the power plant 1 is provided with the gas turbine equipment 5 provided with the compressor 2, the combustor 3, and the turbine 4 (gas turbine). The gas turbine facility 5 is provided with a generator 6 coaxially. The combustor 3 is supplied with compressed air (O 2 -containing gas) compressed by the compressor 2 and fuel such as natural gas. Then, in the combustor 3, in addition to natural gas, the NH 3 from the NH 3 fuel tank 7 is supplied as a fuel.

圧縮機２からの圧縮空気（ＨＡ１）、天然ガス等の燃料、ＮＨ３燃料タンク７からのＮＨ３が燃焼器３で燃焼されて燃焼ガスが得られ、燃焼ガスはタービン４で膨張されて動力が得られ、発電機６で発電が実施される。つまり、発電プラント１は、Ｏ２含有ガスによりＮＨ３燃料を含む燃料を燃焼させて燃焼ガスを得る燃焼器３と、燃焼器３で得られた燃焼ガスを膨張させて動力を得るタービン４（ガスタービン）とを備えている。 Compressed air (HA 1) from the compressor 2, fuel such as natural gas, and NH 3 from the NH 3 fuel tank 7 are combusted in the combustor 3 to obtain combustion gas, and the combustion gas is expanded by the turbine 4 to drive power. Is obtained, and power generation is performed by the generator 6. That is, the power plant 1 combusts a fuel containing NH 3 fuel with an O 2 containing gas to obtain combustion gas, and a turbine 4 to obtain power by expanding the combustion gas obtained by the combustor 3 ( Gas turbine).

天然ガスの燃料供給系統には第１開閉弁１１が設けられ、ＮＨ３燃料タンク７からの燃料供給系統には第２開閉弁１２が設けられている。第１開閉弁１１、及び、第２開閉弁１２の開閉はバルブ制御手段１３の指令により制御され、バルブ制御手段１３は負荷制御手段１４からの情報に基づいて第１開閉弁１１、及び、第２開閉弁１２に開閉指令を出力する。負荷制御手段１４には、負荷指令手段１５からの要求負荷の情報、及び、発電機６からの出力情報が入力され、所望の負荷の出力が得られる燃料状況になるように、バルブ制御手段１３に情報が送られる。 The natural gas fuel supply system is provided with a first on-off valve 11, and the fuel supply system from the NH 3 fuel tank 7 is provided with a second on-off valve 12. Opening / closing of the first on-off valve 11 and the second on-off valve 12 is controlled by a command of the valve control means 13, and the valve control means 13 is controlled based on information from the load control means 14. 2 An open / close command is output to the open / close valve 12. The load control means 14 receives the required load information from the load command means 15 and the output information from the generator 6, and the valve control means 13 so as to obtain a fuel condition in which a desired load output can be obtained. Information is sent to.

タービン４で仕事を終えた排気ガスは、排気経路２１を通って浄化処理された後、大気に放出される。例えば、排気経路２１にはＳＣＲ２２が備えられ、ＮＯＸ等が浄化処理される。 The exhaust gas that has finished work in the turbine 4 is purified through the exhaust path 21 and then released to the atmosphere. For example, the exhaust path 21 is provided with an SCR 22, and NO X or the like is purified.

上述した本実施例の発電プラント１は、ＮＨ３を燃焼器３に燃料として供給している。そして、排気経路２１には、未燃状態のＮＨ３を酸化させてＮ２に分解する酸化手段としての再生手段（再燃・再生手段）２５が備えられている。再生手段２５には、圧縮機２からの圧縮空気（Ｏ２含有ガス）の一部（ＨＡ２）が、酸化剤供給経路２６（酸化剤供給手段）を介して送られる。また、再生手段２５には、ＮＨ３燃料タンク７からのＮＨ３の一部が、ＮＨ３供給経路２７（ＮＨ３供給手段）を介して送られる。 The power plant 1 of the present embodiment described above supplies NH 3 as a fuel to the combustor 3. The exhaust passage 21 is provided with a regeneration means (reburning / regeneration means) 25 as an oxidation means that oxidizes unburned NH 3 and decomposes it into N 2 . A part (HA2) of compressed air (O 2 -containing gas) from the compressor 2 is sent to the regenerating unit 25 via an oxidant supply path 26 (oxidant supply unit). In addition, a part of NH 3 from the NH 3 fuel tank 7 is sent to the regeneration means 25 via the NH 3 supply path 27 (NH 3 supply means).

酸化剤供給経路２６には酸化剤の流量を制御する第３開閉弁１８が設けられ、ＮＨ３供給経路２７にはＮＨ３の流量を制御する第４開閉弁１９が設けられている。再生手段２５とＳＣＲ２２の間の排気経路２１には排ガス組成検出手段２８が備えられ、排ガス組成検出手段２８で検出された排ガス組成の情報に基づいて第３開閉弁１８、第４開閉弁１９の開閉が制御される。つまり、排ガス組成の情報に基づいて、再生手段２５に供給される酸化剤の量、ＮＨ３の量が制御される。 The oxidant supply path 26 is provided with a third on-off valve 18 that controls the flow rate of the oxidant, and the NH 3 supply path 27 is provided with a fourth on-off valve 19 that controls the flow rate of NH 3 . Exhaust gas composition detection means 28 is provided in the exhaust path 21 between the regeneration means 25 and the SCR 22, and based on the information of the exhaust gas composition detected by the exhaust gas composition detection means 28, the third on-off valve 18 and the fourth on-off valve 19 Opening and closing is controlled. That is, based on the information on the exhaust gas composition, the amount of oxidant and NH 3 supplied to the regeneration means 25 are controlled.

尚、ＳＣＲ２２の後流側の排気経路２１に排ガス組成検出手段２８を備えることも可能である。また、再生手段２５には、酸化剤供給経路２６、及び、ＮＨ３供給経路２７が接続されているが、酸化剤供給経路２６、及び、ＮＨ３供給経路２７いずれか一方のみを設け、Ｏ２含有ガスの一部、もしくは、ＮＨ３を再生手段２５に供給する構成にすることも可能である。 It is also possible to provide the exhaust gas composition detection means 28 in the exhaust path 21 on the downstream side of the SCR 22. Further, the reproducing means 25, the oxidizing agent supply path 26 and, although NH 3 supply path 27 is connected, the oxidant supply path 26, and, one NH 3 supply path 27 one only provided, O 2 A configuration in which a part of the contained gas or NH 3 is supplied to the regeneration means 25 is also possible.

上記構成の再生手段２５では、未燃状態で排出されたＮＨ３と燃焼の過程で生成されたＮＯＸとを反応させ、未燃状態のＮＨ３をＮ２に分解している。例えば、反応を適正に実施するため、再燃手段を備えたり、通路面積を広くして容積部を形成したりすることができる。 In the regeneration means 25 having the above-described configuration, NH 3 discharged in an unburned state reacts with NO X generated in the course of combustion to decompose the unburned NH 3 into N 2 . For example, in order to carry out the reaction properly, it is possible to provide a reburning means or to widen the passage area to form a volume portion.

未燃状態のＮＨ３をＮ２に分解する再生手段２５を備えたので、ＮＨ３を含む燃料を燃焼器３で燃焼させても、未燃状態のＮＨ３をＮＯＸと反応させてＮ２に分解する（Ｈ２ＯとＮ２）ことができる。このため、未燃状態のＮＨ３を減少させることができ、ＮＨ３を燃料として使用しても、脱硝設備が不要になり、発電効率を低下させることなく、未燃のＮＨ３、及び、ＮＯＸの排出を大幅に抑制することが可能になる。 Since the regeneration means 25 for decomposing unburned NH 3 into N 2 is provided, even if the fuel containing NH 3 is burned in the combustor 3, the unburned NH 3 is reacted with NO X to react with N 2. Can be decomposed into (H 2 O and N 2 ). For this reason, unburned NH 3 can be reduced, and even if NH 3 is used as fuel, denitration equipment is not required, and unburned NH 3 and NO are not reduced without reducing power generation efficiency. X emission can be greatly suppressed.

上述した発電プラント１における具体的な運転状況の例を説明する。   The example of the specific driving | running condition in the power plant 1 mentioned above is demonstrated.

燃焼器３で酸化剤（空気）が過剰な状態で燃焼ガスを得る運転の場合、未燃のＮＨ３は少量で、生成されるＮＯＸは多くなる。 In the operation of obtaining combustion gas with the oxidizer (air) being excessive in the combustor 3, the amount of unburned NH 3 is small and the amount of NO X produced is large.

再生手段２５への酸化剤供給経路２６からの圧縮空気（Ｏ２含有ガス）の一部（ＨＡ２）の供給を停止し、再生手段２５で、Ｏ２共存下で未燃のＮＨ３とＮＯを反応させてＮ２に分解する（Ｈ２ＯとＮ２）。排ガス組成検出手段２８で排ガスにＮＯＸが多く含まれていることが検出された場合、ＮＨ３供給経路２７からＮＨ３を再生手段２５に供給し、ＮＯの分解反応を補う。このため、脱硝設備が不要になり、熱効率を向上させることができる。 The supply of a part (HA2) of compressed air (O 2 -containing gas) from the oxidant supply path 26 to the regeneration means 25 is stopped, and the regeneration means 25 removes unburned NH 3 and NO in the presence of O 2. React to decompose to N 2 (H 2 O and N 2 ). When the exhaust gas composition detection means 28 detects that the exhaust gas contains a large amount of NO X , NH 3 is supplied from the NH 3 supply path 27 to the regeneration means 25 to supplement the NO decomposition reaction. For this reason, a denitration facility becomes unnecessary, and thermal efficiency can be improved.

一方、Ｏ２が残らない量論比で燃焼ガスを得る運転の場合、未燃のＮＨ３は多くなり、生成されるＮＯＸはやや多くなる。 On the other hand, in the operation of obtaining the combustion gas at a stoichiometric ratio in which no O 2 remains, unburned NH 3 increases and NO X produced slightly increases.

酸化剤供給経路２６から圧縮空気（Ｏ２含有ガス）の一部（ＨＡ２）を再生手段２５に供給し、Ｏ２共存下で未燃のＮＨ３とＮＯを反応させてＮ２に分解する（Ｈ２ＯとＮ２）。このため、脱硝設備が不要になり、熱効率を向上させることができる。 Some of the compressed air from the oxidant supply path 26 (O 2 containing gas) (HA2) was supplied to the reproduction unit 25, decomposing the N 2 by reacting NH 3 and NO unburned in O 2 presence ( H 2 O and N 2). For this reason, a denitration facility becomes unnecessary, and thermal efficiency can be improved.

（第２実施例）
図２に基づいて、本発明の第２実施例に係るＮＨ３を燃料とした発電設備（以下「発電プラント」と記す）を説明する。第１実施例の発電プラント１と同一構成部材には同一符号を付して具体的な説明は省略してある。 (Second embodiment)
A power generation facility using NH 3 as fuel (hereinafter referred to as “power generation plant”) according to a second embodiment of the present invention will be described with reference to FIG. The same reference numerals are given to the same components as those of the power plant 1 of the first embodiment, and a specific description is omitted.

図２に示した発電プラント３０は、酸化手段として、複数段（２段）の燃焼器を備えている。即ち、圧縮機２で圧縮された圧縮空気（Ｏ２含有ガス）と、天然ガス等の燃料が供給される前段燃焼器３１が備えられ、前段燃焼器３１には、天然ガスに加えて、ＮＨ３燃料タンク７からのＮＨ３が燃料として供給される。 The power plant 30 shown in FIG. 2 includes a plurality of (two-stage) combustors as oxidizing means. That is, a pre-stage combustor 31 to which compressed air (O 2 -containing gas) compressed by the compressor 2 and fuel such as natural gas are supplied is provided. The pre-stage combustor 31 includes NH in addition to natural gas. 3 NH 3 from the fuel tank 7 is supplied as fuel.

そして、前段燃焼器３１からの燃焼ガスが送られる後段燃焼器３２が備えられ、後段燃焼器３２には、圧縮機２からの圧縮空気（Ｏ２含有ガス）の一部（ＨＡ２）が、酸化剤供給経路３３（酸化剤供給手段）を介して送られる。酸化剤供給経路３３には酸化剤の流量を制御する第３開閉弁１８が設けられ、第３開閉弁１８はバルブ制御手段１３の指令により開閉される。ＳＣＲ２２の下流側の排気経路２１には排ガス組成検出手段２８が備えられ、バルブ制御手段１３には、排ガス組成検出手段２８で検出された排ガス組成の情報が送られる。 A rear stage combustor 32 to which the combustion gas from the front stage combustor 31 is sent is provided, and a part (HA2) of the compressed air (O 2 -containing gas) from the compressor 2 is oxidized in the rear stage combustor 32. It is sent via the agent supply path 33 (oxidant supply means). The oxidant supply path 33 is provided with a third on-off valve 18 for controlling the flow rate of the oxidant, and the third on-off valve 18 is opened and closed according to a command from the valve control means 13. Exhaust gas composition detection means 28 is provided in the exhaust passage 21 downstream of the SCR 22, and information on the exhaust gas composition detected by the exhaust gas composition detection means 28 is sent to the valve control means 13.

尚、排ガス組成検出手段２８をＳＣＲ２２の上流側の排気経路２１に設けることも可能である。   It is also possible to provide the exhaust gas composition detection means 28 in the exhaust passage 21 upstream of the SCR 22.

上記構成の前段燃焼器３１、後段燃焼器３２を備えた燃焼器では、酸化剤供給経路３３から後段燃焼器３２にＯ２含有ガスを供給することで、Ｏ２の共存下で未燃状態のＮＨ３とＮＯＸを反応させることができる。 In the combustor including the front-stage combustor 31 and the rear-stage combustor 32 having the above-described configuration, the O 2 -containing gas is supplied from the oxidant supply path 33 to the rear-stage combustor 32, so that the unburned state is present in the presence of O 2 . NH 3 and NO X can be reacted.

後段燃焼器３２で、未燃状態のＮＨ３をＮ２に分解するので、ＮＨ３を含む燃料を燃焼器で燃焼させても、未燃状態のＮＨ３をＮＯＸと反応させてＮ２に分解する（Ｈ２ＯとＮ２）ことができる。このため、未燃状態のＮＨ３を減少させることができ、ＮＨ３を燃料として使用しても、脱硝設備が不要になり、発電効率を低下させることなく、未燃のＮＨ３、及び、ＮＯＸの排出を大幅に抑制することが可能になる。 Since the unburned NH 3 is decomposed into N 2 in the post-stage combustor 32, even if the fuel containing NH 3 is burned in the combustor, the unburned NH 3 is reacted with NO X to become N 2 . Can decompose (H 2 O and N 2 ). For this reason, unburned NH 3 can be reduced, and even if NH 3 is used as fuel, denitration equipment is not required, and unburned NH 3 and NO are not reduced without reducing power generation efficiency. X emission can be greatly suppressed.

上述した発電プラント３０における具体的な運転状況の例を説明する。   The example of the specific driving | running condition in the power plant 30 mentioned above is demonstrated.

前段燃焼器３１で酸化剤（空気）が過剰な状態で（ＨＡ１ａ：多）、後段燃焼器３２で酸化剤（空気）が過剰な状態で（ＨＡ１ｂ：多）、燃焼ガスを得る運転の場合、前段燃焼器３１、後段燃焼器３２では未燃のＮＨ３は少量で、生成されるＮＯＸはやや多くなる。 In the case of an operation in which combustion gas is obtained with the oxidant (air) being excessive in the front stage combustor 31 (HA1a: many) and the oxidant (air) being excessive in the rear stage combustor 32 (HA1b: many), In the front-stage combustor 31 and the rear-stage combustor 32, the amount of unburned NH 3 is small, and the generated NO X is slightly increased.

後段燃焼器３２への酸化剤供給経路３３からの圧縮空気（Ｏ２含有ガス）の一部（ＨＡ２）の供給を停止し、後段燃焼器３２で、Ｏ２共存下で未燃のＮＨ３とＮＯを反応させてＮ２に分解する（Ｈ２ＯとＮ２）。このため、脱硝設備が不要になり、燃焼器での完全燃焼が可能になる。 Supply of a portion (HA2) of compressed air (O 2 -containing gas) from the oxidant supply path 33 to the post-stage combustor 32 is stopped, and unburned NH 3 and O 3 coexist in the post-stage combustor 32 in the presence of O 2. NO is reacted to decompose into N 2 (H 2 O and N 2 ). This eliminates the need for denitration equipment and enables complete combustion in the combustor.

前段燃焼器３１で酸化剤（空気）が不足する還元状態で（ＨＡ１ａ：少）、後段燃焼器３２で酸化剤（空気）が過剰な状態で（ＨＡ１ｂ：多）、燃焼ガスを得る運転の場合、前段燃焼器３１では未燃のＮＨ３が多くて生成されるＮＯＸが少なく、後段燃焼器３２では未燃のＮＨ３が少なくて生成されるＮＯＸが多くなる。 In the reduction state where the oxidant (air) is insufficient in the front stage combustor 31 (HA1a: low), and in the state where the oxidant (air) is excessive (HA1b: high) in the rear stage combustor 32, the combustion gas is obtained. The front-stage combustor 31 generates a large amount of unburned NH 3 and generates less NO X , and the rear-stage combustor 32 generates a larger amount of unburned NH 3 and generated NO X.

後段燃焼器３２への酸化剤供給経路３３からの圧縮空気（Ｏ２含有ガス）の一部（ＨＡ２）の供給を停止し、前段燃焼器３１から送られる未燃のＮＨ３とＮＯに加え、後段燃焼器３２で生成されるＮＯＸを反応させてＮ２に分解する（Ｈ２ＯとＮ２）。このため、脱硝設備が不要になり、燃焼器での完全燃焼が可能になる。 The supply of a part (HA2) of compressed air (O 2 -containing gas) from the oxidant supply path 33 to the post-stage combustor 32 is stopped, and in addition to unburned NH 3 and NO sent from the pre-stage combustor 31, NO X produced in the post-stage combustor 32 is reacted and decomposed into N 2 (H 2 O and N 2 ). This eliminates the need for denitration equipment and enables complete combustion in the combustor.

前段燃焼器３１で酸化剤（空気）が不足する還元状態で（ＨＡ１ａ：少）、後段燃焼器３２でＯ２が残らない量論比で燃焼ガスを得る運転の場合、前段燃焼器３１では未燃のＮＨ３が多くて生成されるＮＯＸがやや多く、排ガス中のＯ２がゼロになり、後段燃焼器３２では未燃のＮＨ３が多くて生成されるＮＯＸが少なくなり、後段燃焼器３２に酸化剤が供給され（量論比の燃焼のためＨＡ１ｂが多く供給される）、前段燃焼器３１から送られる未燃のＮＨ３とＮＯに加え、後段燃焼器３２で生成されるＮＯＸを反応させてＮ２に分解する（Ｈ２ＯとＮ２）。このため、脱硝設備が不要になり、燃焼器での完全燃焼が可能になる。 In a reduction state where the oxidizer (air) is insufficient in the pre-stage combustor 31 (HA1a: low), and in the operation of obtaining combustion gas at a stoichiometric ratio in which O 2 does not remain in the post-stage combustor 32, the pre-stage combustor 31 does not little is NO X produced by a number of NH 3 combustion often results in O 2 is zero in the exhaust gas, NO X which is a subsequent stage combustor 32 in unburned NH 3 of which produced many fewer, subsequent combustion In addition to unburned NH 3 and NO sent from the pre-stage combustor 31, the oxidizer is supplied to the combustor 32 (more HA 1 b is supplied for stoichiometric combustion), and NO produced in the post-stage combustor 32 X is reacted to decompose into N 2 (H 2 O and N 2 ). This eliminates the need for denitration equipment and enables complete combustion in the combustor.

尚、第２実施例の構成に加え、第１実施例で示した再生手段２５（図１参照）を追加し、圧縮機２からの圧縮空気（Ｏ２含有ガス）の一部、または（及び）、ＮＨ３燃料タンク７からのＮＨ３の一部を再生手段（再燃・再生手段）２５に供給することも可能である。 In addition to the configuration of the second embodiment, the regeneration means 25 (see FIG. 1) shown in the first embodiment is added, and a part of the compressed air (O 2 containing gas) from the compressor 2 or (and It is also possible to supply a part of NH 3 from the NH 3 fuel tank 7 to the regeneration means (reburning / regeneration means) 25.

（第３実施例）
図３に基づいて、本発明の第３実施例に係るＮＨ３を燃料とした発電設備（以下「発電プラント」と記す）を説明する。第１実施例、第２実施例の発電プラント１、３０と同一構成部材には同一符号を付して具体的な説明は省略してある。 (Third embodiment)
Based on FIG. 3, a power generation facility using NH 3 as fuel (hereinafter referred to as “power generation plant”) according to a third embodiment of the present invention will be described. The same components as those of the power plants 1 and 30 of the first embodiment and the second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図３に示した発電プラント４０は、第２実施例と同様に、酸化手段として、複数段（２段）の燃焼器を備えている。即ち、圧縮機２で圧縮された圧縮空気（Ｏ２含有ガス）と、天然ガス等の燃料が供給される前段燃焼器３１が備えられ、前段燃焼器３１には、天然ガスに加えて、ＮＨ３燃料タンク７からのＮＨ３が燃料Ｆ１として供給される。 As in the second embodiment, the power plant 40 shown in FIG. 3 includes a plurality of stages (two stages) of combustors as the oxidizing means. That is, a pre-stage combustor 31 to which compressed air (O 2 -containing gas) compressed by the compressor 2 and fuel such as natural gas are supplied is provided. The pre-stage combustor 31 includes NH in addition to natural gas. 3 NH 3 from the fuel tank 7 is supplied as the fuel F1.

そして、前段燃焼器３１からの燃焼ガスが送られる後段燃焼器３２が備えられ、後段燃焼器３２には、ＮＨ３燃料タンク７からのＮＨ３が燃料Ｆ２として送られる（ＮＨ３供給手段）。燃料Ｆ１、燃料Ｆ２の流量の制御は、第２開閉弁１２、及び、第５開閉弁２０の開閉により制御される。 Then, a post-stage combustor 32 to which combustion gas from the pre-stage combustor 31 is sent is provided, and NH 3 from the NH 3 fuel tank 7 is sent to the post-stage combustor 32 as fuel F2 (NH 3 supply means). Control of the flow rates of the fuel F1 and the fuel F2 is controlled by opening and closing the second on-off valve 12 and the fifth on-off valve 20.

第２開閉弁１２、及び、第５開閉弁２０はバルブ制御手段１３の指令により開閉される。ＳＣＲ２２の下流側の排気経路２１には排ガス組成検出手段２８が備えられ、バルブ制御手段１３には、排ガス組成検出手段２８で検出された排ガス組成の情報が送られる。   The second on-off valve 12 and the fifth on-off valve 20 are opened and closed according to a command from the valve control means 13. Exhaust gas composition detection means 28 is provided in the exhaust passage 21 downstream of the SCR 22, and information on the exhaust gas composition detected by the exhaust gas composition detection means 28 is sent to the valve control means 13.

尚、排ガス組成検出手段２８をＳＣＲ２２の上流側の排気経路２１に設けることも可能である。   It is also possible to provide the exhaust gas composition detection means 28 in the exhaust passage 21 upstream of the SCR 22.

上記構成の前段燃焼器３１、後段燃焼器３２を備えた燃焼器では、前段燃焼器３１からの燃焼ガスが送られる後段燃焼器３２が備えられ、ＮＨ３燃料タンク７からのＮＨ３が燃料Ｆ２として送られるので、Ｏ２の共存下で未燃状態のＮＨ３とＮＯＸを反応させることができる。 The combustor including the front stage combustor 31 and the rear stage combustor 32 having the above configuration includes the rear stage combustor 32 to which the combustion gas from the front stage combustor 31 is sent, and NH 3 from the NH 3 fuel tank 7 is used as the fuel F2. Therefore, unburned NH 3 and NO X can be reacted in the presence of O 2 .

後段燃焼器３２で、未燃状態のＮＨ３をＮ２に分解するので、ＮＨ３を含む燃料を燃焼器で燃焼させても、未燃状態のＮＨ３をＮＯＸと反応させてＮ２に分解する（Ｈ２ＯとＮ２）ことができる。このため、未燃状態のＮＨ３を減少させることができ、ＮＨ３を燃料として使用しても、脱硝設備が不要になり、発電効率を低下させることなく、未燃のＮＨ３、及び、ＮＯＸの排出を大幅に抑制することが可能になる。 Since the unburned NH 3 is decomposed into N 2 in the post-stage combustor 32, even if the fuel containing NH 3 is burned in the combustor, the unburned NH 3 is reacted with NO X to become N 2 . Can decompose (H 2 O and N 2 ). For this reason, unburned NH 3 can be reduced, and even if NH 3 is used as fuel, denitration equipment is not required, and unburned NH 3 and NO are not reduced without reducing power generation efficiency. X emission can be greatly suppressed.

上述した発電プラント４０における具体的な運転状況の例を説明する。   The example of the specific driving | running condition in the power plant 40 mentioned above is demonstrated.

前段燃焼器３１で酸化剤（空気）が過剰な状態で、且つ、後段燃焼器３２で酸化剤（空気）が過剰な状態で、燃焼ガスを得る運転の場合、前段燃焼器３１、後段燃焼器３２では未燃のＮＨ３は少量で、生成されるＮＯＸはやや多くなる。 In the case of an operation in which combustion gas is obtained in a state where the oxidant (air) is excessive in the front stage combustor 31 and in a state where the oxidant (air) is excessive in the rear stage combustor 32, the front stage combustor 31 and the rear stage combustor In 32, the amount of unburned NH 3 is small, and the amount of NO x produced is slightly increased.

後段燃焼器３２では、前段燃焼器３１から送られる未燃のＮＨ３とＮＯに加え、後段燃焼器３２で生成されるＮＯＸを反応させてＮ２に分解する（Ｈ２ＯとＮ２）。このため、脱硝設備が不要になり、燃焼器での完全燃焼が可能になる。 In the post-stage combustor 32, in addition to unburned NH 3 and NO sent from the pre-stage combustor 31, NO X generated in the post-stage combustor 32 is reacted to decompose into N 2 (H 2 O and N 2 ). . This eliminates the need for denitration equipment and enables complete combustion in the combustor.

前段燃焼器３１で酸化剤（空気）が過剰な状態で、後段燃焼器３２でＯ２が残らない量論比で燃焼ガスを得る運転の場合、前段燃焼器３１では未燃のＮＨ３が少なくて生成されるＮＯＸがやや多く、後段燃焼器３２では未燃のＮＨ３が多くて生成されるＮＯＸが少なくなり、後段燃焼器３２では、前段燃焼器３１から送られる未燃のＮＨ３とＮＯに加え、後段燃焼器３２で生成されるＮＯＸを反応させてＮ２に分解する（Ｈ２ＯとＮ２）。このため、脱硝設備が不要になり、燃焼器での完全燃焼が可能になる。 In an operation in which combustion gas is obtained at a stoichiometric ratio in which O 2 does not remain in the post-stage combustor 32 in a state where the oxidizer (air) is excessive in the pre-stage combustor 31, the unburned NH 3 is small in the pre-stage combustor 31. NO X is slightly more generated Te, NO X which is a subsequent stage combustor 32 in unburned NH 3 of which produced many fewer, the subsequent combustor 32, the unburned sent from the previous stage combustor 31 NH 3 In addition to NO, NO X produced in the post-combustor 32 is reacted to decompose into N 2 (H 2 O and N 2 ). This eliminates the need for denitration equipment and enables complete combustion in the combustor.

尚、第３実施例の構成に加え、第１実施例で示した再生手段２５（図１参照）を追加し、圧縮機２からの圧縮空気（Ｏ２含有ガス）の一部、または（及び）、ＮＨ３燃料タンク７からのＮＨ３の一部を再生手段（再燃・再生手段）２５に供給することも可能である。 In addition to the configuration of the third embodiment, the regeneration means 25 (see FIG. 1) shown in the first embodiment is added, and a part of the compressed air (O 2 containing gas) from the compressor 2 or (and It is also possible to supply a part of NH 3 from the NH 3 fuel tank 7 to the regeneration means (reburning / regeneration means) 25.

また、第３実施例の発電プラント４０に対し、第２実施例の発電プラント３０に備えられたＨＡ１ａ、ＨＡ１ｂ、ＨＡ２の圧縮空気の経路を追加することも可能である。この場合も、第１実施例で示した再生手段２５（図１参照）を追加し、圧縮機２からの圧縮空気（Ｏ２含有ガス）の一部、または（及び）、ＮＨ３燃料タンク７からのＮＨ３の一部を再生手段（再燃・再生手段）２５に供給することも可能である。 Moreover, it is also possible to add the compressed air path of HA1a, HA1b, HA2 provided in the power plant 30 of the second embodiment to the power plant 40 of the third embodiment. Also in this case, the regeneration means 25 (see FIG. 1) shown in the first embodiment is added, and a part of compressed air (O 2 -containing gas) from the compressor 2 or (and) the NH 3 fuel tank 7 It is also possible to supply a part of NH 3 to the regeneration means (reburning / regeneration means) 25.

（第４実施例）
図４に基づいて、本発明の第４実施例に係るＮＨ３を燃料とした発電設備（以下「発電プラント」と記す）を説明する。第３実施例の発電プラント４０と同一構成部材には同一符号を付して具体的な説明は省略してある。 (Fourth embodiment)
Based on FIG. 4, a power generation facility using NH 3 as fuel (hereinafter referred to as “power generation plant”) according to a fourth embodiment of the present invention will be described. The same components as those of the power plant 40 of the third embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

図４に示した発電プラント５０は、前段燃焼器３１と後段燃焼器３２の間、後段燃焼器３２の後側にそれぞれタービン（膨張タービン）５１、５２を配設してタービン設備としたものである。膨張タービンを２段とすることで、燃焼ガスの温度を高くすることができ、熱効率を一層高めることが可能になる。   The power plant 50 shown in FIG. 4 is a turbine facility in which turbines (expansion turbines) 51 and 52 are disposed between the front-stage combustor 31 and the rear-stage combustor 32 and on the rear side of the rear-stage combustor 32, respectively. is there. By setting the expansion turbine to two stages, the temperature of the combustion gas can be increased, and the thermal efficiency can be further increased.

尚、燃焼器を３段以上の複数段で構成した場合、膨張タービンも燃焼器の段数に合わせて複数段に構成することが可能である。   When the combustor is composed of a plurality of stages including three or more stages, the expansion turbine can be composed of a plurality of stages in accordance with the number of stages of the combustor.

また、第４実施例の構成に加え、第１実施例で示した再生手段２５（図１参照）を追加し、圧縮機２からの圧縮空気（Ｏ２含有ガス）の一部、または（及び）、ＮＨ３燃料タンク７からのＮＨ３の一部を再生手段（再燃・再生手段）２５に供給することも可能である。 Further, in addition to the configuration of the fourth embodiment, the regeneration means 25 (see FIG. 1) shown in the first embodiment is added, and a part of the compressed air (O 2 containing gas) from the compressor 2 or (and It is also possible to supply a part of NH 3 from the NH 3 fuel tank 7 to the regeneration means (reburning / regeneration means) 25.

以上実施例を挙げて説明したように、本発明のＮＨ３を燃料とした発電設備は、ＮＨ３を燃料として使用しても、発電効率を低下させることなく、未燃のＮＨ３、及び、ＮＯＸの排出を大幅に抑制することが可能になる。 As described by way of above embodiments, the power generation equipment and NH 3 as fuel of the present invention, be used NH 3 as fuel, power generation without reducing the efficiency of the unburned NH 3 and, it is possible to greatly suppress the emission of NO X.

本発明は、ＮＨ３を燃料とした発電設備の産業分野で利用することができる。 The present invention can be used in the industrial field of power generation facilities using NH 3 as fuel.

１、３０、４０、５０ ＮＨ３を燃料とした発電設備（発電プラント）
２ 圧縮機
３ 燃焼器
４、５１、５２ タービン
５ タービン設備
６ 発電機
７ ＮＨ３燃料タンク
１１ 第１開閉弁
１２ 第２開閉弁
１３ バルブ制御手段
１４ 負荷制御手段
１５ 負荷指令手段
１８ 第３開閉弁
１９ 第４開閉弁
２０ 第５開閉弁
２１ 排気経路
２２ ＳＣＲ
２５ 再生手段（再燃・再生手段）
２６、３３ 酸化剤供給経路
２７ ＮＨ３供給経路
２８ 排ガス組成検出手段
３１ 前段燃焼器
３２ 後段燃焼器
３３ 酸化剤供給経路
1, 30 , 40, 50 Power generation facility using NH 3 as fuel (power generation plant)
2 compressor 3 combustor 4,51,52 turbine 5 turbine equipment 6 generator 7 NH 3 fuel tank 11 first on-off valve 12 second on-off valve 13 the valve control means 14 The load control means 15 load command means 18 third on-off valve 19 4th on-off valve 20 5th on-off valve 21 Exhaust path 22 SCR
25 Regeneration means (reburning / regeneration means)
26, 33 Oxidant supply path 27 NH 3 supply path 28 Exhaust gas composition detection means 31 Pre-stage combustor 32 Post-stage combustor 33 Oxidant supply path

Claims (9)

Ｏ２含有ガス、及び、ＮＨ３燃料を含む燃料を燃焼させて燃焼ガスを得る燃焼器と、
前記燃焼器で得られた前記燃焼ガスを膨張させて動力を得るガスタービンと、
未燃状態のＮＨ３を酸化させてＮ２に分解する酸化手段とを備えた
ことを特徴とするＮＨ３を燃料とした発電設備。 A combustor for obtaining a combustion gas by burning a fuel containing an O 2 -containing gas and NH 3 fuel;
A gas turbine that obtains power by expanding the combustion gas obtained in the combustor;
And an oxidizing means for oxidizing unburned NH 3 to decompose it into N 2. A power generation facility using NH 3 as fuel. 請求項１に記載のＮＨ３を燃料とした発電設備において、
前記酸化手段は、
前記ガスタービンの排気系統に備えられ、排気ガス中の未燃状態のＮＨ３が、ＮＯＸと反応して分解される再生手段である
ことを特徴とするＮＨ３を燃料とした発電設備。 The power generation facility using NH 3 as a fuel according to claim 1,
The oxidizing means includes
A power generation facility using NH 3 as fuel, which is provided in the exhaust system of the gas turbine and is a regenerating means in which unburned NH 3 in the exhaust gas reacts with NO X to be decomposed. 請求項２に記載のＮＨ３を燃料とした発電設備において、
前記再生手段にＯ２含有ガスを供給する酸化剤供給手段を備えた
ことを特徴とするＮＨ３を燃料とした発電設備。 The power generation facility using NH 3 as a fuel according to claim 2,
A power generation facility using NH 3 as fuel, comprising an oxidant supply means for supplying an O 2 -containing gas to the regeneration means. 請求項３に記載のＮＨ３を燃料とした発電設備において、
前記Ｏ２含有ガスを得る圧縮機を備え、
前記酸化剤供給手段は、
前記圧縮機で得られたＯ２含有ガスの一部を供給する手段である
ことを特徴とするＮＨ３を燃料とした発電設備。 In the power generation facility using NH 3 as a fuel according to claim 3,
A compressor for obtaining the O 2 -containing gas;
The oxidizing agent supply means includes
A power generation facility using NH 3 as fuel, which is means for supplying a part of the O 2 -containing gas obtained by the compressor. 請求項１に記載のＮＨ３を燃料とした発電設備において、
前記酸化手段は、
前記燃焼器を複数段に構成し、後段側の燃焼器で、前段側での燃焼が行われない未燃状態のＮＨ３が、ＮＯＸと反応して分解される
ことを特徴とするＮＨ３を燃料とした発電設備。 The power generation facility using NH 3 as a fuel according to claim 1,
The oxidizing means includes
Constitute the combustor in a plurality of stages, in the subsequent stage of the combustor, NH 3 which is NH 3 unburned combustion is not performed in the preceding stage, characterized in that it is decomposed by reacting with NO X Power generation equipment using fuel. 請求項５に記載のＮＨ３を燃料とした発電設備において、
複数段に構成された前記燃焼器に、Ｏ２含有ガスを供給する酸化剤供給手段を備えた
ことを特徴とするＮＨ３を燃料とした発電設備。 The power generation facility using NH 3 as a fuel according to claim 5,
An oxidant supply means for supplying an O 2 -containing gas to the combustor configured in a plurality of stages is provided. A power generation facility using NH 3 as fuel. 請求項６に記載のＮＨ３を燃料とした発電設備において、
前記Ｏ２含有ガスを得る圧縮機を備え、
前記酸化剤供給手段は、
前記圧縮機で得られたＯ２含有ガスの一部を供給する手段である
ことを特徴とするＮＨ３を燃料とした発電設備。 The power generation facility using NH 3 as a fuel according to claim 6,
A compressor for obtaining the O 2 -containing gas;
The oxidizing agent supply means includes
A power generation facility using NH 3 as fuel, which is means for supplying a part of the O 2 -containing gas obtained by the compressor. 請求項５もしくは請求項６のいずれか一項に記載のＮＨ３を燃料とした発電設備において、
複数段に構成された前記燃焼器に、ＮＨ３を供給するＮＨ３供給手段を備えた
ことを特徴とするＮＨ３を燃料とした発電設備。 In the power generation facility using NH 3 as a fuel according to any one of claims 5 and 6,
The combustor configured in a plurality of stages, power generating plant with NH 3, characterized in that it comprises a NH 3 supply means for supplying NH 3 as fuel. 請求項８に記載のＮＨ３を燃料とした発電設備において、
前記ＮＨ３供給手段は、
燃焼ガスを得るためのＮＨ３燃料の一部を供給する手段である
ことを特徴とするＮＨ３を燃料とした発電設備。
The power generation facility using NH 3 as a fuel according to claim 8,
The NH 3 supply means includes
A power generation facility using NH 3 as fuel, which is means for supplying a part of NH 3 fuel for obtaining combustion gas.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112902163A (en) * 2021-03-08 2021-06-04 山东大学 Hydrogen-doped low-nitrogen combustion system and method based on ammonia decomposition
CN115614778A (en) * 2022-11-04 2023-01-17 北京理工大学 Ammonia-hydrogen mixed combustion chamber and ammonia-hydrogen mixed combustion method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0275821A (en) * 1988-09-08 1990-03-15 Toshiba Corp Gas-turbine burner
JPH05195757A (en) * 1991-08-27 1993-08-03 Osaka Gas Co Ltd Natural gas cogeneration system
WO2010082360A1 (en) * 2009-01-14 2010-07-22 トヨタ自動車株式会社 Engine
JP2012255420A (en) * 2011-06-10 2012-12-27 Nippon Shokubai Co Ltd Gas turbine system
JP2014134369A (en) * 2013-01-11 2014-07-24 Central Research Institute Of Electric Power Industry Combustion method of gas turbine combustion system and gas turbine combustion system
JP2015031215A (en) * 2013-08-02 2015-02-16 一般財団法人電力中央研究所 Reheating type ammonia gas turbine
JP2015094496A (en) * 2013-11-11 2015-05-18 株式会社Ihi Combustion system, gas turbine, and power generation system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0275821A (en) * 1988-09-08 1990-03-15 Toshiba Corp Gas-turbine burner
JPH05195757A (en) * 1991-08-27 1993-08-03 Osaka Gas Co Ltd Natural gas cogeneration system
WO2010082360A1 (en) * 2009-01-14 2010-07-22 トヨタ自動車株式会社 Engine
JP2012255420A (en) * 2011-06-10 2012-12-27 Nippon Shokubai Co Ltd Gas turbine system
JP2014134369A (en) * 2013-01-11 2014-07-24 Central Research Institute Of Electric Power Industry Combustion method of gas turbine combustion system and gas turbine combustion system
JP2015031215A (en) * 2013-08-02 2015-02-16 一般財団法人電力中央研究所 Reheating type ammonia gas turbine
JP2015094496A (en) * 2013-11-11 2015-05-18 株式会社Ihi Combustion system, gas turbine, and power generation system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112902163A (en) * 2021-03-08 2021-06-04 山东大学 Hydrogen-doped low-nitrogen combustion system and method based on ammonia decomposition
CN115614778A (en) * 2022-11-04 2023-01-17 北京理工大学 Ammonia-hydrogen mixed combustion chamber and ammonia-hydrogen mixed combustion method
CN115614778B (en) * 2022-11-04 2023-08-15 北京理工大学 Ammonia-hydrogen mixed combustion chamber and ammonia-hydrogen mixed combustion method

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