JP2007291897A - Heavy oil reformed fuel burning gas turbine and method for operating heavy oil reformed fuel burning gas turbine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an efficient heavy oil reformed fuel burning gas turbine reducing draining of gas reformed fuel supplied to a combustor and a method for operating the heavy oil reformed fuel burning gas turbine. <P>SOLUTION: The heavy oil reformed fuel burning gas turbine is provided with a means separating liquid and gas at saturated vapor temperature or higher in a first gas liquid separating device 14a and supplying steam 19 of temperature higher than temperature of a gas reformed fuel 15 in gas reformed fuel system provided between the first gas liquid separating device 14a and the combustor 22. Consequently, draining of gas reformed fuel supplied to the combustor is reduced and efficiency can be kept at high. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a heavy oil reformed fuel-fired gas turbine and a method for operating a heavy oil reformed fuel-fired gas turbine.

  Low-grade fuel such as heavy oil contains a large amount of impurities such as heavy metals, sulfur, nitrogen and ash that adversely affect the gas turbine for power generation. In order to reform such a low-grade fuel, a technique using a hydrothermal reaction of high-temperature and high-pressure water such as 300 to 500 ° C. and 20 to 30 MPa is known. High-temperature high-pressure water easily dissolves organic substances such as heavy oil, and acts as a reaction solvent that thermally decomposes, hydrolyzes, or oxidatively decomposes in the presence of an oxidizing agent. In recent years, heavy oil reformed fuel-fired gas turbines have been developed that operate with a reformed fuel obtained by reforming heavy oil by the hydrothermal reaction of such high-temperature and high-pressure water.

  As an example of this heavy oil reformed fuel-fired gas turbine, heavy oil is mixed with water under high temperature and high pressure conditions (for example, about 300 to 500 ° C., about 20 to 30 MPa) to reform the reformed fuel. While reducing the pressure and cooling, it is allowed to stand in a separator to separate into a gas component and a liquid component (oil and moisture). The oil is distilled to separate a distillate having a low boiling point (light component) and a residue having a high boiling point, and the gas component and distillate are respectively supplied to the combustor and burned. To generate electricity. On the other hand, a technique is disclosed in which the remainder is supplied to a boiler and combusted, and a steam turbine is driven by steam generated in the boiler to generate electric power (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 11-80750

  In Patent Document 1, the reformed fuel is decompressed, cooled to room temperature (saturated water or less), and allowed to stand in a separator to be separated into a gas component and liquid components such as oil and moisture. However, since heavy oil is dissolved in high-temperature and high-pressure water, when the reformed fuel is decompressed and cooled, ultrafine oil droplets and water droplets are generated in a mixed state. Therefore, it becomes difficult to separate oil and moisture. Moreover, since it is necessary to cool the reformed fuel to room temperature, it is not preferable from the viewpoint of the efficiency of the entire system.

  Therefore, a method is considered in which the reformed fuel is not cooled to room temperature, but the reformed fuel is cooled to a temperature equal to or higher than the saturated steam temperature and separated into a gas component containing water vapor and an oil component. However, in a pipe that supplies a gas component containing water vapor to the combustor, there is a possibility that the temperature is lowered due to natural heat dissipation and drainage is generated. When fuel mixed with gas and liquid due to the generation of drain is supplied to the gas reforming fuel nozzle of the combustor, the gas injection holes may be clogged, vibrations due to intermittent combustion, and turbine load fluctuations may occur.

  An object of the present invention is to provide a heavy oil reformed fuel-fired gas turbine and a method of operating a heavy oil reformed fuel-fired gas turbine that reduce drainage of gas reformed fuel supplied to a combustor and have high efficiency. There is to do.

  In the first gas-liquid separator, the gas and liquid are separated into a liquid and a gas at a temperature equal to or higher than the saturated vapor temperature, and the gas reformed fuel system provided between the first gas-liquid separator and the combustor is gas-modified. A means for supplying water vapor having a temperature higher than that of the quality fuel is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the draining of the gas reformed fuel supplied to a combustor is reduced, and the heavy oil reformed fuel-fired gas turbine with high efficiency and the operation method of the heavy oil reformed fuel-fired gas turbine are provided. can do.

  In Embodiment 1 of the present invention, the first gas-liquid separation device separates the liquid and gas at a temperature equal to or higher than the saturated vapor temperature, and the gas reformed fuel provided between the first gas-liquid separation device and the combustor. Means is provided for supplying steam with a temperature higher than that of the gas reforming fuel to the system.

  By making the internal temperature of the first gas-liquid separation device equal to or higher than the saturated vapor temperature, it is possible to prevent water from being mixed into the liquid reformed fuel. Further, by providing means for supplying water vapor having a temperature higher than the temperature of the gas reformed fuel to the gas reformed fuel system provided between the first gas-liquid separator and the combustor, the gas reformed fuel is provided. The temperature of the light organic matter in the inside is raised, and the gas reformed fuel naturally dissipates heat, and draining due to cooling can be suppressed as much as possible. Further, when the amount of water vapor mixed in the gas reformed fuel is increased, the thermal energy of the steam can be recovered by the combustor and NOx can be suppressed from being generated in the combustion chamber inside the combustor. Note that the steam is contained in the exhaust gas from the combustor and serves as a driving fluid for the turbine. Since the turbine output increases, the heat loss due to the steam can be reduced.

  Further, in the first embodiment of the present invention, the first gas-liquid separator separates the liquid and the gas at a temperature equal to or higher than the saturated vapor temperature, and between the manifold that supplies the gas reformed fuel and the first gas-liquid separator. A means for supplying steam having a temperature higher than that of the gas reformed fuel is provided, and a first gas-liquid separator is provided below the manifold of the gas reformed fuel.

  By providing each of the manifolds for supplying the liquid reformed fuel and the gas reformed fuel to the combustor, it is possible to suppress the supply of the reformed fuel in which the gas and the liquid are mixed to each of the combustors. Therefore, the supply flow rate deviation between the gas reforming fuel and the liquid reforming fuel can be reduced.

  Also, by providing the first gas-liquid separator on the lower side of the gas reforming fuel manifold, even if drain is generated in the gas reforming fuel manifold, the first gas-liquid separation device will be able to It is possible to suppress the drain from falling and flowing into the fuel nozzle that burns the gas reformed fuel.

  Furthermore, by providing means for supplying water vapor having a temperature higher than that of the gas reformed fuel between the gas reformed fuel manifold and the first gas-liquid separator, draining can be suppressed. By supplying the liquid reformed fuel directly from the first gas-liquid separator to the liquid reformed fuel manifold, it is not necessary to temporarily store the liquid reformed fuel in the tank. In addition, an auxiliary machine such as a compression pump for supplying from the tank to the combustor is unnecessary, and the cost can be reduced.

  In the first embodiment of the present invention, the first gas-liquid separator is provided with means capable of monitoring the amount of liquid reformed fuel.

  By providing the first gas-liquid separation device with means capable of monitoring the amount of the liquid reformed fuel, the liquid reformed fuel flow rate can be controlled in accordance with the amount of the liquid reformed fuel and the gas turbine load. The means can use a sensor capable of detecting the amount of liquid reformed fuel. By such a liquid reforming fuel monitoring means, the gas / liquid amount of the gas-liquid separator can be kept constant, and fluctuations in the supply amount of the gas reforming fuel can be suppressed.

  In the first embodiment of the present invention, the means for supplying water vapor to the gas reformed fuel system provided between the first gas-liquid separator and the combustor includes a heating device for heating water and a fuel reformer. The system is connected to a gas reformer, and is branched from this system and communicated with a system of gas reformed fuel.

  Thus, the cost can be reduced by sharing the first fuel reformer and the pump and heater, which are the supply sources of the steam supplied to the gas reformed fuel. Moreover, by making the said heating apparatus into the exhaust heat recovery boiler to which turbine exhaust gas is supplied, the heat of turbine exhaust gas can be utilized and the thermal efficiency of the whole gas turbine improves.

  Further, in Embodiment 2 of the present invention, a control valve for controlling pressure is provided in a system between the fuel reformer and the first gas-liquid separator, and the second gas-liquid separator is provided upstream of the control valve. And the liquid reformed fuel separated by the second gas-liquid separator is supplied to the first gas-liquid separator.

  When lightening of the reformed fuel is insufficient, it is conceivable that the gas-liquid mixed phase fluid is supplied to the control valve after depressurizing the fuel, and the fuel control becomes unstable. Therefore, a second gas-liquid separator is installed on the upstream side of each control valve. By supplying the liquid reformed fuel separated by the gas-liquid separator to the first gas-liquid separator, the liquid reformed fuel can be prevented from flowing into the control valve.

  In the third and fourth embodiments of the present invention, a pump for pressurizing the liquid reformed fuel separated by the gas-liquid separator, and heating the pressurized liquid reformed fuel downstream of the pump. The liquid reformed fuel heated by the heating means is supplied to the system between the fuel reformer and the gas-liquid separator.

  With such a structure, the fuel supply to the gas turbine is possible only with the gas reformed fuel, the control is simplified, the cost is reduced, and the control reliability is improved. Further, when the waste heat of the gas turbine is used as the heating means for the liquid reformed fuel, the system efficiency can be improved.

  As an embodiment using the present invention, a system configuration of a heavy oil reforming fuel-fired gas turbine is shown in FIG. The system has a heavy oil and water supply system, a reformer, a gas-liquid separator, a combustor, a compressor, a turbine, a generator, a waste heat recovery boiler, and a startup fuel system.

  Heavy oil 7 and water 6 stored in the heavy oil tank 2 and the water tank 1 are pressurized by the oil pump 4 and the water pump 3, respectively, and then heated by the waste heat recovery boiler 5 which is a heating device. The The heated water and heavy oil are supplied to a reformer 8 that is a fuel reformer. At this time, when the heavy oil 7 is reformed with the high-temperature and high-pressure water, the pressure of the heavy oil 7 and the water 6 supplied to the reformer 8 is set to 22 MPa and the temperature condition is set to 374 ° C. It is preferable to use high-temperature high-pressure water close to temperature conditions.

  In the reformer 8 that is a fuel reformer, the heavy oil 7 is lightened, and impurities 9 such as heavy metals and sulfur are further removed to produce a reformed fuel 10. The reformed fuel 10 is decompressed by the pressure-holding valve 11 and passes through the pressure regulating valve 12 and the flow regulating valve 13 for regulating the fuel flow rate. By passing through these regulating valves, the reformed fuel 10 whose flow rate is controlled in accordance with the gas turbine load is cooled to the vicinity of the saturated steam temperature in the cooler 21 and is the gas-liquid that is the first gas-liquid separator. It is supplied to the separator 14a.

  In the gas-liquid separator 14 a, the reformed fuel is cooled to near the saturated steam temperature, so that it is separated into the gas reformed fuel 15 and the liquid reformed fuel 16. Between the gas-liquid separator 14a and the combustor 22, two systems through which the gas reformed fuel and the liquid reformed fuel respectively flow are provided, and the gas reformed fuel and the liquid reformed fuel are separately combustor. 22 is supplied.

  The gas-liquid separator 14a is provided with means for monitoring the storage amount of the liquid reformed fuel 16. As the means, a sensor 36 for determining the liquid level can be used. The flow path of the liquid reformed fuel provided between the reformer 8 and the combustor 22 controls the storage amount of the liquid reformed fuel stored in the gas-liquid separator 14a and A liquid reforming fuel control valve 18 for adjusting the supply amount of the liquid reforming fuel to be supplied is installed. The opening degree of the control valve is controlled according to the sensor output 17 provided in the gas-liquid separator 14a.

  The gas reformed fuel 15 separated by the gas-liquid separator 14a is mixed with the steam 19 from the means for supplying steam at a temperature higher than the temperature of the gas reformed fuel and supplied to the combustor 22. As means for supplying water vapor to the gas reformed fuel 15 system provided between the gas-liquid separator 14a and the combustor 22, it is also possible to supply water vapor from the outside. However, the number of facilities can be reduced by supplying the steam heated by the waste heat recovery boiler 5 as in this embodiment. The flow rate of the steam 19 is controlled by the steam flow rate control valve 20 and is supplied to the gas reformed fuel.

  In the combustor 22, the compressed air 24 from the compressor 23 and the gas / liquid reformed fuel or the starting fuel 29 are burned to generate the combustion gas 25. In the combustion chamber that burns fuel and compressed air, NOx is generated when a local high-temperature combustion region occurs. However, in the present embodiment, the steam 19 supplied together with the gas reforming fuel 15 can reduce the temperature in the high temperature region in the combustion chamber and suppress the generation of NOx.

  The generated combustion gas 25 rotates the turbine 26 and drives the generator 27. The exhaust gas discharged from the turbine 26 is supplied to the waste heat recovery boiler 5 as the exhaust gas 28. The waste heat recovery boiler 5 plays a role of heating heavy oil / water supplied to the reformer 8 by the exhaust gas 28 from the turbine 26.

  Here, FIG. 2 shows a detailed structure of the manifold and the gas-liquid separator 14a in the gas turbine in which the combustor 22 includes a plurality of cans. The reformed fuel 10 cooled to the saturated vapor temperature in the cooler 21 is supplied to a gas-liquid separator 14a that is a first gas-liquid separator. In the gas-liquid separator 14 a, the reformed fuel 10 is separated into a gas reformed fuel 15 and a liquid reformed fuel 16. Then, the gas reformed fuel 15 flows into the gas reformed fuel manifold 33 provided on the upper side of the gas-liquid separator 14a, and the liquid reformed fuel 16 is supplied to the liquid reformer provided on the lower side of the gas-liquid separator 14a. It flows into the manifold 34 for quality fuel. Each manifold is provided with as many branch pipes 35 as the number of combustor cans, and the combustors 22 are connected to the respective branch pipes 35. In this embodiment, a combustor suitable for gas reformed fuel is connected to the branch pipe 35 of the gas reformed fuel manifold 33, and the liquid reformer is connected to the branch pipe 35 of the liquid reformed fuel manifold 34. A combustor suitable for quality fuel is connected. In this way, the gas reforming fuel 15 and the liquid reforming fuel 16 can be supplied to each combustor 22 via the branch pipe 35 of the manifold.

Further, a sensor 36 capable of monitoring the storage amount of the liquid reformed fuel 16 is installed in the gas-liquid separator 14a. The liquid reforming is performed by the output 17 of the sensor 36 and the control output 39 of the signal processor 37. The liquid reformed fuel control valve 18 installed in the pipe between the quality fuel manifold 34 and the gas-liquid separator 14a can be controlled to keep the stored amount of the liquid reformed fuel 16 constant. Further, the liquid reforming fuel control valve 18 receives a fuel control command 38 for fuel switching at the time of load operation and can be controlled according to the operation conditions.

  FIG. 3 shows a gas turbine using the system of FIGS. 1 and 2 that heats the starting fuel 29, the gas reforming fuel 15, the liquid reforming fuel 16, and the gas reforming fuel 15 in response to changes in the gas turbine load. It is the figure which showed the flow volume change of the water vapor | steam 19 for a heating. In the figure shown in the upper part of FIG. 3, the vertical axis indicates the temperature, and the horizontal axis indicates the gas turbine load. Moreover, in the figure shown at the lower part of FIG. 3, the flow rate is shown on the vertical axis, and the gas turbine load is shown on the horizontal axis.

  A case where the gas turbine load is in section 1 in FIG. 3 will be described. When starting the gas turbine, the starting fuel 29 such as light oil boosted by the starting fuel pump 30 is supplied to the combustor 22 by adjusting the fuel flow rate by the starting fuel flow rate control valve 31 and ignited. The starting fuel 29 is used during partial load operation, which is the starting acceleration of the gas turbine from the ignition of the combustor 22. During this gas turbine load operation, the temperature of the exhaust gas 28 discharged from the gas turbine is low, so the heavy oil 7 and the water 6 heated by the waste heat recovery boiler 5 are at a temperature lower than the temperature required for the reforming reaction. It is.

In section 2 of FIG. 3, when the temperature of the exhaust gas 28 at the gas turbine outlet rises and the heavy oil 7 and water 6 can be sufficiently heated by the waste heat recovery boiler 5, the water 6 is reformed. The fuel pipe of the reformed fuel 10 is warmed as hot water or steam. At this time, water liquefied in each pipe is discharged to the outside as a drain, and only water vapor is supplied to the combustor 22 from a pipe that supplies the gas reformed fuel 15.

  In section 3 of FIG. 3, the supply of heavy oil 7 is started, and when the temperature and pressure of the reformer 8 reach predetermined reforming conditions, the heating steam 19 is supplied and the combustor 22 is modified. Supply quality fuel. In the initial stage of supplying the reformed fuel 10, only the gas reformed fuel 15 is supplied to the combustor 22.

  In the section 4 of FIG. 3, when the liquid reformed fuel 16 is sufficiently stored in the gas-liquid separator 14 a and the storage amount monitoring sensor 36 becomes operable, the combustor 22 receives the liquid reformed fuel 16. Start supplying. The start-up fuel 29 is decreased in accordance with an increase in the supply amount of the gas reforming fuel and the liquid reforming fuel and an increase in the gas turbine load.

  In section 5 of FIG. 3, only the reformed fuel 10 is operated from a predetermined gas turbine load. As the gas turbine load increases, the flow rate of the reformed fuel and the supply amount of the steam 19 for raising the temperature of the gas reformed fuel 15 are increased.

  FIG. 4 shows a system configuration of the gas turbine in Embodiment 2 of the present invention. This system is different from the system shown in FIG. 1 in that a gas-liquid separator 14b is installed on the downstream side of the pressure holding valve 11 and on the upstream side of the pressure regulating valve 12, and on the downstream side of the pressure regulating valve 12 The gas-liquid separator 14c is installed on the upstream side. And the 1st gas-liquid separator which has installed the liquid reformed fuel 16 isolate | separated by the gas-liquid separators 14b and 14c which are 2nd gas-liquid separators in the upstream of the manifold 33 for gas reformed fuels It is set as the structure supplied to the gas-liquid separator 14a which is.

  This embodiment is effective when the heavy oil 7 is not sufficiently lightened by the reforming conditions of the reformer 8. In that case, there is a possibility of gas-liquid separation in the system between the reformer 8 and the gas-liquid separator 14a due to a pressure drop of the reformed fuel 10 and a temperature drop due to heat loss of piping and the like. In particular, when a valve for changing the pressure of the reformed fuel is provided in the system between the reformer 8 and the gas-liquid separator 14a, the reformed fuel that has passed through the valve may be gas-liquid separated. Therefore, by providing the gas-liquid separators 14b and 14c in the upstream pipe of the valve through which the reformed fuel 10 passes, there is a problem in controlling the pressure regulating valve 12 and the flow regulating valve 13 by the gas-liquid mixed phase fuel. Can be avoided.

Further, the gas-liquid separator 14b installed on the downstream side of the pressure holding valve 11 and the liquid reformed fuel 16 separated from the gas-liquid separator 14c installed on the downstream side of the pressure regulating valve 12 are used as the gas-reformed fuel. By supplying the gas-liquid separator 14 a provided on the upstream side of the manifold 33, the amount of the liquid reformed fuel 16 supplied to the combustor 22 can be controlled.

  As a third embodiment using the present invention, a system configuration of a gas turbine is shown in FIG. This embodiment is provided with a liquid reforming fuel tank 41 for temporarily storing the liquid reforming fuel 16 separated from the gas-liquid separator 14a in the embodiment shown in FIG. The liquid reformed fuel 16 stored in the liquid reformed fuel tank 41 is pressurized by the pump 42, reheated by the heating means and vaporized, and then supplied to the upstream side of the pressure regulating valve 12. Yes. Further, a return system that branches from the downstream system of the pump 42 and sends the liquid reformed fuel 16 to the liquid reformed fuel tank 41 is provided, and a return valve 43 that adjusts the flow rate is installed in the system. The flow rate of the liquid reformed fuel supplied from the liquid reformed fuel tank 41 to the heating means is controlled by the discharge pressure of the pump 42. A flow rate control valve 44 is installed downstream of the heating means to control the flow rate of the vaporized reformed fuel 45.

  By setting it as such a system, only the gas reforming fuel 15 can be supplied to the combustor 22, and the structure and control of the combustor 22 can be simplified. Further, the system efficiency can be improved by using the waste heat recovery boiler 5 as a heating means for reheating and vaporizing the liquid reformed fuel 16.

  When the liquid reformed fuel 16 is stored in the liquid reformed fuel tank 41, there is a possibility that the fuel will be separated vertically in the liquid reformed fuel tank 41 according to the fuel density. Therefore, it is preferable to install a stirrer or the like in the liquid reforming fuel tank 41 and keep the components of the liquid reforming fuel 16 constant. Depending on the reforming conditions, as shown in FIG. 4, gas-liquid separators 14b and 14c are installed on the downstream side of the pressure-holding valve 11 and on the downstream side of the pressure regulating valve 12, respectively. The liquid reforming fuel tank 41 may be supplied.

  FIG. 6 shows a system configuration of a gas turbine as Example 4 using the present invention. In the present embodiment, a heater 46 is installed as a heating means with respect to the embodiment shown in FIG. 5, and the liquid reformed fuel 16 pressurized by the pump 42 is heated and vaporized.

  Even when the exhaust gas 28 of the waste heat recovery boiler 5 is insufficient for increasing the temperature of the liquid reformed fuel, the liquid reformed fuel 16 can be heated. Further, the capacity of the liquid reforming fuel tank 41 can be reduced and the responsiveness of the fuel supply control is improved.

The figure which showed Example 1 of the fuel supply system using this invention. The figure which showed arrangement | positioning and structure of the gas-liquid separator in the system of FIG. The figure which showed flow volume and temperature, such as a load of the system of FIG. 1, and fuel. The figure which showed Example 2 of the system using this invention. The figure which showed Example 3 of the system using this invention. The figure which showed Example 4 of the system using this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Water tank, 2 ... Heavy oil tank, 3 ... Water pump, 4 ... Oil pump, 5 ... Waste heat recovery boiler, 6 ... Water, 7 ... Heavy oil, 8 ... Reformer, 9 ... Impurity, 10 ... reformed fuel, 11 ... holding pressure valve, 12 ... pressure regulating valve, 13 ... flow regulating valve, 14a, 14b, 14c ... gas-liquid separator, 15 ... gas reformed fuel, 16 ... liquid reformed fuel, 17 ... output , 18 ... Liquid reforming fuel control valve, 19 ... Steam, 20 ... Steam flow control valve, 21 ... Cooler, 22 ... Combustor, 23 ... Compressor, 24 ... Compressed air, 25 ... Combustion gas, 26 ... Turbine, 27 ... Generator, 28 ... Exhaust gas, 29 ... Starting fuel, 30 ... Starting fuel pump, 31 ... Starting fuel flow rate control valve, 33 ... Gas reforming fuel manifold, 34 ... Liquid reforming fuel manifold, 35 ... branch pipe, 36 ... sensor, 37 ... signal processor, 38 ... fuel control command, 3 ... control output 41 ... liquid reformed fuel tank, 42 ... pump, 43 ... return valve, 44 ... flow control valve, 45 ... vaporized reformed fuel, 46 ... heater.

Claims (7)

A compressor that compresses air to generate compressed air;
A fuel reformer that mixes heavy oil and water to produce reformed fuel;
A first gas-liquid separator for separating the reformed fuel from the fuel reformer into a liquid and a gas;
A combustor for burning the liquid reformed fuel and the gas reformed fuel separated by the first gas-liquid separator together with the compressed air;
Two systems respectively supplying liquid reformed fuel and gas reformed fuel between the first gas-liquid separator and the combustor;
A heavy oil reformed fuel-fired gas turbine comprising a turbine driven by combustion gas from the combustor,
In the first gas-liquid separator, the gas is separated into liquid and gas at a saturated vapor temperature or higher, and the gas is supplied to the gas reformed fuel system provided between the first gas-liquid separator and the combustor. A heavy oil reformed fuel-fired gas turbine comprising means for supplying steam having a temperature higher than that of the reformed fuel. A compressor that compresses air to generate compressed air;
A fuel reformer that mixes heavy oil and water to produce reformed fuel;
A first gas-liquid separator for separating the reformed fuel from the fuel reformer into a liquid and a gas;
A plurality of combustors for combusting the liquid reformed fuel and the gas reformed fuel separated by the first gas-liquid separator together with the compressed air;
A manifold for supplying a liquid reformed fuel and a gas reformed fuel between the first gas-liquid separator and the combustor,
A heavy oil reformed fuel-fired gas turbine comprising a turbine driven by combustion gas from the combustor,
In the first gas-liquid separation device, liquid and gas are separated at a temperature equal to or higher than a saturated vapor temperature, and the gas-reformed fuel is separated between a manifold that supplies the gas-reformed fuel and the first gas-liquid separator. A heavy oil reformed fuel-fired gas turbine characterized in that means for supplying steam at a temperature higher than the temperature is provided, and the first gas-liquid separator is provided below the manifold of the gas reformed fuel. A heavy oil reformed fuel-fired gas turbine according to claim 1,
A heavy oil reformed fuel-fired gas turbine provided with means capable of monitoring the amount of the liquid reformed fuel in the first gas-liquid separator. A heavy oil reformed fuel-fired gas turbine according to claim 1,
Means for supplying water vapor to the gas reformed fuel system provided between the first gas-liquid separator and the combustor is provided between a heating device for heating water and the fuel reformer. A heavy oil reformed fuel-fired gas turbine, characterized in that the system is branched from the system and communicates with the gas reformed fuel system. A heavy oil reformed fuel-fired gas turbine according to claim 1,
A control valve for controlling pressure is provided in a system between the fuel reformer and the first gas-liquid separator;
A second gas-liquid separator is provided upstream of the control valve;
A heavy oil reformed fuel-fired gas turbine configured to supply the liquid reformed fuel separated by the second gas-liquid separator to the first gas-liquid separator. A heavy oil reformed fuel-fired gas turbine according to claim 1,
A pump for pressurizing the liquid reformed fuel separated by the gas-liquid separator and a heating means for the pressurized liquid reformed fuel downstream from the pump; A heavy oil reformed fuel-fired gas turbine, characterized in that the liquid reformed fuel heated by the heating means is supplied to a system between the gas-liquid separator. A compressor that compresses air to generate compressed air;
A fuel reformer that mixes heavy oil and water to produce reformed fuel;
A first gas-liquid separator for separating the reformed fuel from the fuel reformer into a liquid and a gas;
A combustor for burning the liquid reformed fuel and the gas reformed fuel separated by the first gas-liquid separator together with the compressed air;
Two systems respectively supplying liquid reformed fuel and gas reformed fuel between the first gas-liquid separator and the combustor;
A method of operating a heavy oil reformed fuel-fired gas turbine comprising a turbine driven by combustion gas from the combustor,
In the first gas-liquid separation device, the gas reformed fuel system provided between the first gas-liquid separation device and the combustor is separated into liquid and gas at a saturated vapor temperature or higher, A method for operating a heavy oil reformed fuel-fired gas turbine, comprising supplying steam at a temperature higher than the temperature of the gas reformed fuel after the reforming reaction of the fuel reformer reaches a predetermined state.

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