KR102252149B1 - Ship - Google Patents

Abstract

The present invention is a fuel cell system for generating electricity using a raw material supply unit for supplying a raw material, a raw material water supply unit for supplying raw material water, a raw material supplied from the raw material supply unit, and the raw material water supplied from the raw material water supply unit, and It relates to a ship including a power conversion unit for converting a direct current (DC) output from the fuel cell system into an alternating current (AC).

Description

Ship{SHIP}

The present invention relates to an environmentally friendly ship.

In general, most of the total energy comes from fossil fuels. However, the reserves of fossil fuels are limited, and the use of fossil fuels has serious effects on the environment such as air pollution, acid rain, and global warming. In order to solve the problems associated with the use of fossil fuels, an environment-friendly power generation system is being developed.

Environmentally friendly power generation systems include power generation systems that generate electricity by converting renewable energy including sunlight, water, geothermal heat, precipitation, and biological organisms. In addition, environmentally friendly power generation systems include power generation systems that convert fossil fuels or generate electricity through chemical reactions such as hydrogen and oxygen.

A fuel cell system is a system including a fuel cell that directly produces electric energy through a reaction with an oxidizing agent such as oxygen using a fuel, for example, hydrogen contained in a hydrocarbon-based material. Hydrocarbon-based materials include, for example, NG (natural gas), LPG (liquefied petroleum gas), methanol (CH ₃ OH), ethanol (C ₂ H ₅ OH), gasoline, dimethyl ether, and the like.

Depending on the type of electrolyte used, fuel cells include alkaline fuel cells (AFCs), phosphoric acid fuel cells (PAFCs), molten carbonate fuel cells (MCFCs), and solid oxides. It is classified into a fuel cell (SOFC, Solid Oxide Fuel Cell), a Polymer Electrolyte Membrane Fuel Cell (PEMFC), and a Direct Methanol Fuel Cell (DMFC). Each of these fuel cells operates according to fundamentally the same principle, but differs in operating temperature, electrolyte, power generation efficiency, and power generation performance. The fuel cell may generate electricity by receiving fuel containing hydrogen from a reformer that reforms fuel and steam (H _{2 0).} The reformer receives raw materials such as NG (natural gas) and steam (H ₂ 0) from a steam separator that separates moisture from steam (H ₂ 0) and is heated by a combustor _{to reform fuel and steam (H 2} 0). You can react.

Meanwhile, in the fuel cell system according to the prior art, steam (H ₂ 0) supplied from the water separator to the reformer is heated using a separate heating device. Accordingly, the fuel cell system according to the prior art has the following problems.

First, the fuel cell system according to the prior art needs to supply fuel or electricity to a separate heating device in order to heat the _{steam (H 2 0) supplied to the reformer.} Accordingly, the fuel cell system according to the prior art has a problem in that electricity production efficiency is deteriorated because fuel or electricity must be supplied to a separate heating device in order to supply heat for generating fuel used in the fuel cell.

Second, in the fuel cell system according to the prior art, since a separate heating device must be installed to heat the _{steam (H 2 0) supplied to the reformer, the installation cost of the heating device is increased.} Accordingly, the fuel cell system according to the prior art has a problem that the construction cost for generating electricity increases.

Third, the fuel cell system according to the prior art requires a space for installing a heating device for heating _{steam (H 2 0) supplied to the reformer.} Accordingly, the fuel cell system according to the prior art has a problem in that the space of other devices for producing and storing electricity becomes narrow due to the installation of a heating device.

The present invention has been conceived to solve the above-described problems, and is to provide a ship that can reduce construction cost and increase space utilization for an installation space.

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In order to solve the problems as described above, the present invention may include the following configuration.

The ship according to the present invention includes a raw material supply unit for supplying raw materials; A raw material water supply unit for supplying raw material water; A fuel cell system for generating electricity by using the raw material supplied from the raw material supply unit and the raw material water supplied from the raw material water supply unit; And a power conversion unit for converting a direct current (DC) output from the fuel cell system into an alternating current (AC), wherein the fuel cell system comprises a hydrogen generating unit generating fuel containing hydrogen, from the hydrogen generating unit A raw material processing unit for pre-treating LNG supplied from an LNG storage tank storing LNG (liquefied natural gas), comprising a fuel cell for generating electricity using the supplied fuel, and a turbine unit for generating electricity, A raw material water treatment unit for pretreating the raw material water supplied from the raw material water supply unit, a reformer for reforming _{the pretreated fuel supplied from the raw material treatment unit and the steam (H 2 0) supplied from the raw material water treatment unit, and the reformer A combustor for heating, and the raw material water treatment unit separates moisture from the steam (H 2} 0) to pretreat the raw material water supplied from the raw material water supply unit, and the steam supplied from the steam (H ₂₎ 0), wherein the turbine unit _{generates electricity using steam (H 2} 0) supplied from the economizer, and the reformer generates a portion of the steam (H ₂ 0) passed through the turbine unit and the raw material supply unit. The supplied raw material is reformed to produce a fuel containing hydrogen, and the economizer uses the waste heat of the exhaust gas discharged from the gas engine that generates propulsion by burning NG (natural gas) supplied from the raw material processing unit as a heat source. Thus, the steam (H ₂ 0) supplied from the water separator may be heated and then supplied to the turbine unit.
A ship according to the present invention includes an air supply unit for supplying air to the fuel cell, the combustor, and the gas engine; And a first heat exchange unit for heat exchange between _{steam (H 2} 0) supplied from the turbine unit to the water separator and air supplied from the air supply unit so that air supplied to the fuel cell and the combustor is heated. .
The ship according to the present invention includes a second heat exchange unit for supplying _{heated water or steam (H 2} 0) to the water separator by exchanging the exhaust gas discharged from the raw material processing unit and condensed water in the exhaust gas of the fuel cell. I can.
In the ship according to the present invention, the raw material processing unit includes an LNG evaporator for evaporating LNG supplied from the LNG storage tank, and a carburetor installed in the LNG evaporator, wherein the carburetor is waste heat of exhaust gas discharged from the combustor. Can be used as a heat source for vaporizing LNG.

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According to the present invention, the following effects can be achieved.

The present invention is implemented to heat the _{steam (H 2} 0) supplied to the reformer and the turbine using the waste heat of the exhaust gas discharged from the gas engine, thereby being supplied to the conventional heating device for generating _{steam (H 2 0).} Since fuel or electricity can be used for electricity production, electricity production and electricity production efficiency can be improved.

The present invention is implemented to heat the _{steam (H 2} 0) supplied to the reformer and the turbine using the waste heat of the exhaust gas discharged from the gas engine, thereby omitting a separate heating device for generating the _{steam (H 2 0).} Therefore, not only can the construction cost consumed to produce electricity can be reduced, but also the versatility of the installation space can be increased.

1 is a conceptual configuration diagram of an entire system according to the present invention
2 is a conceptual configuration diagram of a fuel cell system according to a first embodiment of the present invention
3A and 3B are exemplary views for explaining the operation of a fuel cell used in the present invention, and FIG. 3A is a conceptual configuration diagram of a solid oxide fuel cell (SOFC)
3B is a conceptual diagram of a polymer electrolyte fuel cell (PEMFC)
4 is an exemplary view for explaining a hydrogen generating unit according to an embodiment of the present invention
5 and 6 are conceptual diagrams of a fuel cell system according to a second embodiment of the present invention
7 is a configuration diagram according to a first embodiment of the fuel cell system of FIG. 5
8 is a configuration diagram according to a second embodiment of the fuel cell system of FIG. 5
9 is a configuration diagram according to a third embodiment of the fuel cell system of FIG. 5
10 is a schematic diagram showing an example of a ship according to the present invention

Hereinafter, an embodiment of a fuel cell system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a conceptual configuration diagram of an overall system according to the present invention, FIG. 2 is a conceptual configuration diagram of a fuel cell system according to a first embodiment of the present invention, and FIGS. 3A and 3B are diagrams of a fuel cell used in the present invention. As an exemplary diagram for explaining the operation, FIG. 3A is a conceptual configuration diagram of a solid oxide fuel cell (SOFC), FIG. 3B is a conceptual configuration diagram of a polymer electrolyte fuel cell (PEMFC), and FIG. 4 is an embodiment of the present invention. It is an exemplary diagram for explaining the hydrogen generation unit according to.

Referring to FIG. 1, the fuel cell system 200 according to the present invention is applied to the power generation system 100 and serves to generate electricity. Prior to describing the fuel cell system 200 according to the present invention, a first look at the power generation system 100 is as follows.

The power generation system 100 includes a raw material supply unit 110, a raw material water supply unit 120, an air supply unit 130, a power conversion unit 140, and a fuel cell system 200 according to the present invention.

The raw material supply unit 110 includes a raw material storage tank, and supplies raw materials from the raw material storage tank. For example, raw materials are hydrocarbon-based materials, such as LNG (liquefied natural gas), LPG (liquefied petroleum gas), methanol (CH ₃ OH), ethanol (C ₂ H ₅ OH), gasoline, dimethyl ether, methane gas, It may be hydrogen purified off-gas, pure hydrogen, and the like.

For example, when the power generation system 100 is applied to a vehicle, the raw material supply unit 110 is implemented to include a gas storage tank and a device (eg, a pump) for supplying gas from the gas storage tank. As another example, when the power generation system 100 is applied to an LNG carrier, the raw material supply unit 110 includes an LNG storage tank and a device for providing boil-off gas generated from the LNG storage tank. As another example, when the power generation system 100 is applied to a diesel engine ship, the raw material supply unit 110 includes a diesel fuel storage tank and a device for supplying diesel fuel from the diesel fuel storage tank.

The raw material water supply unit 120 may include a raw material water storage tank and a device (eg, a pump) for supplying raw material water from the raw material water storage tank. The raw material water may be, for example, fresh water, or sea water. As another example, the raw material water may be water that has been treated to remove impurities or ion-removed from fresh water or sea water. As another example, the raw material water may be fresh water or water in which impurities have been removed from seawater.

The air supply unit 130 supplies air to the fuel cell system 200 according to the present invention. In general, air refers to a gas including nitrogen, oxygen, carbon dioxide, and the like, but in the present specification, all gases other than oxygen such as nitrogen, carbon dioxide, or two gases are removed from the air. The air supply unit 130 may include an air storage tank and a device (eg, a blower) supplying air from the air storage tank. As another example, the air supply unit 130 may be implemented to receive external air, compress it, and then supply compressed high-pressure air or supply it at normal pressure.

The power conversion unit 140 converts the direct current (DC) from the fuel cell system 200 according to the present invention into an alternating current (AC). The power conversion unit 140 includes a DC-DC converter for boosting or reducing the output voltage from the fuel cell system 200 according to the present invention, and a DC-AC for converting a direct current (DC) into an alternating current (AC). It may be composed of an inverter or the like. The power conversion unit 140 discharges electricity supplied from the fuel cell system 200 according to the present invention as a power load. In the case of a ship, for example, the power load may be an electrical facility in a ship such as basic electrical facilities of a ship and electrical facilities of a cargo system. Although not shown, the power conversion unit 140 may be implemented to transmit and store electricity to an energy storage device, for example, a battery.

The fuel cell system 200 according to the present invention _{generates electricity using fuel, water (H 2} O), and air. The fuel cell system 200 according to the present invention may be used in small structures such as homes or automobiles, and may be used in large structures such as ships. The fuel cell system 200 according to the present invention may be implemented to interlock with a diesel engine, a gas engine, a steam turbine, a gas turbine, or a Rankine Cycle using combustion energy of fuel.

Hereinafter, a fuel cell system 200 according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 2, the fuel cell system 200 according to the first embodiment of the present invention includes a fuel cell 210 and a hydrogen generator 400. The fuel cell system 200 according to the present invention may be implemented by including a control unit 250 for controlling the operation of all components including the fuel cell 210 and the hydrogen generator 400. In the present specification, raw materials and raw water flowing into the hydrogen generating unit 400 are defined as fuel, and what is generated in the hydrogen generating unit 400 and flowing into the fuel cell 210 is defined as fuel.

The fuel cell 210 is implemented including a fuel cell stack. In the fuel cell stack, an electrolyte layer is formed between a cathode and an anode, and a separator for supplying hydrogen, supplying air, and recovering heat is provided at the anode and cathode. It is composed of the installed unit cell modules connected in series as much as the required quantity.

The fuel cell 210 is a temperature sensor and a temperature maintenance device. That is, a heater, a cathode fan, an anode fan, and a cooling plate may be included. The temperature sensor senses the temperature of the fuel cell stack, the temperature of the cathode, and the temperature of the anode. The fuel cell may be heated by the heater to maintain a temperature required for operation. The cathode fan dissipates heat generated by the cathode of the fuel cell stack. The anode fan dissipates heat generated by an anode of the fuel cell stack. The cathode fan and the anode fan may be implemented as a part of a heat exchanger used in a fuel cell stack.

When the fuel cell system 200 according to the present invention includes the control unit 250, the control unit 250 controls the heater or cathode fan and the anode fan using a signal output from a temperature sensor to control the fuel cell 210 ) To properly maintain the operating temperature. For example, the control unit 250 maintains the operating temperature at 190 to 210°C in the case of a phosphoric acid fuel cell (PAFC), and maintains the operation temperature at 550 to 650°C in the case of a molten carbonate fuel cell (MCFC), and In the case of an oxide fuel cell (SOFC), the operating temperature is maintained at 650 to 1000°C, and in the case of a polymer electrolyte fuel cell (PEMFC), the operating temperature is maintained at 30 to 80°C.

Hereinafter, the operation of the fuel cell 210 provided in the fuel cell system 200 according to the present invention will be described with reference to FIGS. 3A and 3B. 3A is a conceptual configuration diagram of a solid oxide fuel cell (SOFC), and FIG. 3B is a conceptual configuration diagram of a polymer electrolyte fuel cell (PEMFC).

First, referring to FIG. 3A, in a solid oxide fuel cell (SOFC) 310, oxygen ions generated by a reduction reaction of oxygen in a cathode 311 are transferred through an electrolyte 312 to an anode 313. Go to. A fuel electrode (anode) (313) In there is fuel is introduced, through the electrolyte 312. The oxygen ions move to the fuel electrode (anode) (313) containing hydrogen (H ₂₎ (O ^{2 -)} and hydrogen (H ₂₎ reacts electrochemically with water (H ₂ 0) and the electron (e ^-) is generated. Since electrons are consumed in the cathode 311, electricity flows when the cathode 311 and the anode 313 are connected to each other.

The solid oxide fuel cell (SOFC) 310 includes electrochemical unreacted substances such as _{carbon monoxide (CO) and carbon dioxide (CO 2} ) that may be included in the fuel supplied to the anode 313 _{and unreacted hydrogen (H 2 ).} ) And the reaction product water (liquid or gaseous H ₂ 0). In addition, unreacted oxygen and nitrogen are discharged from the cathode 311 of the solid oxide fuel cell (SOFC) 310.

Referring to Figure 3b a polymer electrolyte fuel cell (PEMFC), (320) is a fuel electrode (anode) (321), the catalyst layer 322, the hydrogen (H ₂₎ is a hydrogen ion (H ⁺⁾ and electrons (e ^-) in the formed in the generation by do. Hydrogen ions (H ⁺ ) move to the cathode 324 through the polymer membrane 323. In the polymer electrolyte fuel cell (PEMFC) 320, hydrogen ions (H ⁺ ) and oxygen (O ₂ ) react in the catalyst layer 325 formed on the cathode 324 to produce water (H ₂ 0). When the catalyst layer 322 formed on the anode 321 and the catalyst layer 325 formed on the cathode 324 are connected to each other, electricity flows.

The polymer electrolyte fuel cell (PEMFC) 320 discharges residual substances such as _{unreacted hydrogen (H 2) from the catalyst layer 322 of the anode 321.} In addition, the polymer electrolyte fuel cell (PEMFC) 320 _{discharges unreacted oxygen and water (H 2} 0) from the cathode 324.

Other molten carbonate fuel cell (MCFC) is a fuel electrode (anode) of hydrogen (H ₂₎ and carbonate ions (CO ₃ ^{2 -)} in the reaction water (H ₂ O) and carbon dioxide (CO _2), electron (e ^-) Is created. The generated carbon dioxide (CO ₂ ) is sent to a cathode, and carbon dioxide (CO ₂ ) and oxygen (O ₂ ) react at the cathode to produce _{carbonate ions (C0 3} ^{-2 ).} Carbonate ions (C0 ₃ ^-2 ) move to the anode through the electrolyte. In the molten carbonate fuel cell (MCFC), carbon dioxide (CO ₂ ) generated in the process of generating electricity may be circulated inside the fuel cell without discharging to the outside.

Referring to FIGS. 2 and 4, the hydrogen generating unit 400 includes a device for generating _{fuel, that is, hydrogen (H 2} ) gas required for an anode of the fuel cell 210 by using a raw material. In the present specification, raw materials and raw water flowing into the hydrogen generating unit 400 are defined as fuel, and what is generated in the hydrogen generating unit 400 and flowing into the fuel cell 210 is defined as fuel.

The hydrogen generation unit 400 may be designed in various ways according to the type of the fuel cell 210 or to improve electricity generation efficiency. For example, when the fuel cell 210 is a molten carbonate fuel cell (MCFC) or a solid oxide fuel cell (SOFC), the hydrogen generation unit 400 may be implemented including a reformer and a combustor. . As another example, when the fuel cell 210 is a phosphoric acid fuel cell (PAFC) or a polymer electrolyte fuel cell (PEMFC), the hydrogen generating unit 400 is a water gas shift reactor in addition to a reformer and a combustor. , WGS) may be further included and implemented.

The water gasification reactor (WGS) is a high temperature water gasification reactor (HTS, High-Temperature Shift Reactor), a medium temperature water gasification reactor (MTS, Mid-Temperature Shift Reactor), a low temperature water gasification reactor (LTS, Low-Temperature Shift Reactor), Or it may include a carbon monoxide remover. The carbon monoxide remover may include a selective oxidation reactor (Preferential Oxidation, PROX) for removing only carbon monoxide (CO) by burning, or a methanation reactor for reducing the concentration by reacting _{carbon monoxide (CO) with hydrogen (H 2 ).} .

Referring to FIG. 4, in the fuel cell system 200 according to the present invention, an example of the hydrogen generating unit 400 will be described as follows.

The hydrogen generation unit 400 may be implemented by including a raw material processing unit 410, a raw material water treatment unit 420, a reformer 430, and a combustor 440.

The raw material processing unit 410 preprocesses raw materials supplied from a raw material supply unit including a raw material storage tank. For example, the raw material processing unit 410 may be implemented by including an LNG evaporator that evaporates the liquefied natural gas supplied from the LNG storage tank. When the raw material is a liquid raw material having a relatively high molecular weight such as marine gas oil (MGO), marine diesel oil (MDO), heavy fuel oil (HFO), etc., the raw material processing unit ( 410) includes a heater that applies heat to offshore gas oil (MGO), offshore diesel oil (MDO), or general heavy oil (HFO) and a methanizer that generates _{methane (CH 4) by catalytic reaction of the heated raw material.} Can be implemented. In addition, the raw material processing unit 410 may include a filter for removing impurities contained in the raw material or a desulfurization device for removing sulfides.

The raw material water treatment unit 420 pre-treats raw material water supplied from a raw material water supply unit including a raw material water storage tank. _{The raw material water treatment unit 420 generates steam (H 2} O) by heating raw material water, for example, and supplies the steam (H ₂ O) to a reformer. The raw material water treatment unit 420 may include, for example, a heat exchanger for heating the raw material water with waste heat of the exhaust gas generated from the combustor 440. In addition, the raw material water treatment unit 420 may include a steam separator for separating moisture (water droplets) contained in exhaust gas or steam of the fuel cell system. In addition, the raw material water treatment unit 420 may use activated carbon, a resin for removing ions, etc. to maintain the purity required by the fuel cell system, and may include a sensor and a control system for measuring the raw material water. As another example, the raw material water treatment unit 420 may include an external water supply line and system for maintaining a predetermined level of water.

The reformer 430 performs a reforming reaction of the pretreated fuel supplied from the raw material treatment unit 410 and the steam (H ₂ 0) supplied from the raw material water treatment unit 420 to generate hydrogen (H ₂ ). It generates a reformed gas containing. In performing such a reforming reaction, the reformer 430 may use heat energy provided from the combustor 440. Hereinafter, in the present specification, the reformed gas emitted from the reformer 330 is defined as a fuel.

The reformer 430 is implemented including a reforming catalyst layer that triggers a reforming reaction. The reforming catalyst layer has a structure in which the reforming catalyst is loaded with a catalyst supported on a carrier. The reforming catalyst is made of nickel (Ni), ruthenium (Ru), platinum (Pt), and the like, and the shape of the carrier supporting the catalyst may be, for example, a granular shape, a pellet shape, and a honeycomb shape, and the material constituting the support May be ceramic, heat-resistant metal, or the like, such as alumina (Al ₂ O ₃ ) or titania (TiO ₂ ).

In the fuel cell system 200 according to the present invention, the reformer 330 may be installed outside the fuel cell 210. In this case, the fuel cell 210 is implemented in an external reforming type. In the fuel cell system 200 according to the present invention, the reformer 330 may be installed in the form of a reforming catalyst layer inside the fuel cell 210. In this case, the fuel cell 210 is implemented in an internal reforming type.

The combustor 440 provides heat so that the reforming reaction proceeds smoothly in the reformer 430. When the heating temperature of the reformer by the combustor 440 is low, the reforming reaction by the endothermic reaction of the reformer 430 does not proceed well, and moisture (water droplets) is generated in the reformer 430 . When the heating temperature of the combustor 440 is high, the catalytic activity of the reforming catalyst layer of the reformer 430 may decrease.

In order to improve the overall efficiency of the system, the combustor 440 includes raw materials pretreated by the raw material processing unit 410, exhaust gas discharged from an anode of the fuel cell stack of the fuel cell 210, or both. A mixture of can be used as fuel. The combustor 440 may use air supplied from the air supply unit 130 (shown in FIG. 1 ). In the fuel cell system 200 according to the present invention, the combustor 440 may additionally use air discharged from a cathode of the fuel cell stack of the fuel cell 210.

Although not shown, the hydrogen generation unit 400 may further include one or more temperature sensors, and the temperature sensor detects the temperature of the reformer 430. The temperature of the reformer 430 is the optimum temperature depending on _{the configuration of the reformer 430 and the mixing ratio of the fuel and steam (H 2} O) pretreated in the raw material processing unit 410 The range changes. When the fuel cell system 200 according to an embodiment of the present invention includes the control unit 250 (shown in FIG. 2), the control unit 250 uses a signal output from a temperature sensor to determine the combustor 440. ) To control the temperature of the reformer 430 by increasing or decreasing the amount of raw material combustion. For example, the controller 250 may be implemented to control within a range of about ±20°C with respect to the optimum temperature range.

Here, the gas generated through the reforming reaction in the reformer 430 includes _{not only hydrogen (H 2} ) but also carbon monoxide (CO) and carbon dioxide (CO ₂ ). When the fuel cell 210 is a polymer electrolyte fuel cell (PEMFC), carbon monoxide (CO) poisons the electrode catalyst of the fuel cell stack of the polymer electrolyte fuel cell (PEMFC) to shorten the life of the fuel cell 210. Accordingly, in order to reduce the concentration of carbon monoxide (CO) to 10 to 20 ppm or less, the hydrogen generation unit 400 may further include a water gasification reactor (WGS) 450.

The water gasification reactor (WGS) 450 produces carbon dioxide (CO ₂ ) and hydrogen (H ₂ ) _{by reacting carbon monoxide (CO) and steam (H 2 0).} The water gasification reactor (WGS) 450 may include a high temperature water gasification reactor (HTS) and a low temperature water gasification reactor (LTS) as shown in FIG. 4.

The optimum temperature of the high-temperature water gasification reactor (HTS) and the low-temperature water gasification reactor (LTS) varies depending on the type of catalyst used, and the composition of the discharged gas is determined by the equilibrium of the control temperature. Although not shown in FIG. 4, a cooler and a temperature sensor may be installed in the high-temperature water gasification reactor (HTS) and the low-temperature water gasification reactor (LTS), respectively. When the fuel cell system 200 according to the present invention includes a control unit 250 (shown in FIG. 2), the control unit 250 controls the cooler using a signal output from a temperature sensor to control the high-temperature water gasification reactor. (HTS) and the temperature of the low-temperature water gasification reactor (LTS) are controlled. For example, the high temperature water gasification reactor (HTS) is controlled within the range of 300 to 430 °C, the low temperature water gasification reactor (LTS) is controlled within the range of 200 to 250 °C.

Although not shown, the water gasification reactor (WGS) 450 may include a carbon monoxide remover. The carbon monoxide remover removes a very small amount of carbon monoxide (CO) that has not been completely treated in the low-temperature water gasification reactor (LTS) after the low-temperature water gasification reactor (LTS). The carbon monoxide remover receives air from the air supply unit and burns and removes only carbon monoxide (CO) among gases discharged from the low-temperature water gasification reactor (LTS). It may include a methanation reactor for reducing the concentration by reacting with H _{2 ).}

The selective oxidation reactor (PROX) is equipped with a cooler and a temperature sensor. When the fuel cell system 200 according to an embodiment of the present invention includes the control unit 250 (shown in FIG. 2), the control unit 250 controls the cooler using a signal output from a temperature sensor. Controls the temperature of the selective oxidation reactor (PROX). For example, the selective oxidation reactor (PROX) is controlled within the range of 120 ~ 160 ℃. However, the optimum temperature of the selective oxidation reactor (PROX) is set differently depending on conditions such as the type of catalyst to be used and the method of use.

The catalyst layer of the selective oxidation reactor (PROX) has a structure filled with a carrier supporting a selective oxidation catalyst. The selective oxidation catalyst is made of platinum (Pt), and the shape of the carrier supporting the catalyst may be, for example, granular, pellet, honeycomb, and the like, and the material constituting the carrier is, for example, alumina (Al ₂ O ₃ ). , Magnesium oxide (MgO), etc.

Hereinafter, a fuel cell system 200 according to a second embodiment of the present invention will be described in detail with reference to the accompanying drawings.

5 and 6 are conceptual diagrams of a fuel cell system according to a second embodiment of the present invention, FIG. 7 is a configuration diagram of the fuel cell system of FIG. 5 according to a first embodiment, and FIG. 8 is A configuration diagram of a fuel cell system according to a second embodiment, and FIG. 9 is a configuration diagram of the fuel cell system of FIG. 5 according to a third embodiment. Here, the same configuration as in FIGS. 1 to 4 uses the same reference numerals.

5 to 7, the fuel cell system 200 according to the second embodiment of the present invention includes a fuel cell 210, a hydrogen generator 400, and a turbine 500. The fuel cell system 200 according to the second embodiment of the present invention is implemented to interlock with a gas engine exhaust system including the gas engine 1000. The fuel cell system 200 according to the present invention includes a control unit 250 for controlling the operation of all components including the fuel cell 210, the hydrogen generation unit 400, and the turbine unit 500. It can also be implemented.

The fuel cell system 200 and the gas engine 1000 according to the second embodiment of the present invention are implemented to receive raw materials from a raw material supply unit 110 including an LNG storage tank.

5 to 7, the fuel cell 210 may receive fuel containing hydrogen from the hydrogen generator 400 and generate electricity through an electrochemical reaction. For example, the fuel cell 210 may receive fuel containing hydrogen from the reformer 430 and generate electricity through an electrochemical reaction. The fuel cell 210 may be composed of one or a plurality of fuel cell modules. For example, the fuel cell 210 includes an alkali fuel cell (AFC), a phosphoric acid fuel cell (PAFC), a molten carbonate fuel cell (MCFC), a solid oxide fuel cell (SOFC), a polymer electrolyte fuel cell (PEMFC), and a direct It may include at least one fuel cell among methanol fuel cells (DMFC). The fuel cell 210 may supply exhaust gas generated through an electrochemical reaction to the hydrogen generating unit 400. For example, the fuel cell 210 may supply exhaust gas to the combustor 440 of the hydrogen generating unit 400.

5 to 7, the hydrogen generation unit 400 may include a raw material processing unit 410, a raw material water treatment unit 420, a reformer 430, and a combustor 440. The hydrogen generation unit 400 receives NG (natural gas) from the raw material processing unit 410 for pretreating LNG (liquefied natural gas) from the raw material supply unit 110 (eg, an LNG storage tank), and the raw material water supply unit Water is supplied from 120 to generate fuel containing hydrogen required for the fuel cell 210.

Specifically, the raw material processing unit 410 includes an LNG evaporator 4101 for evaporating LNG (liquefied natural gas) supplied from the raw material supply unit 110 including an LNG storage tank and a vaporizer 4102 installed in the LNG evaporator ) Can be included.

5 to 7, the raw material water treatment unit 420 includes a water separator 4201 and an economizer 4203.

The water separator 4201 separates moisture from _{steam (H 2 0).} For example, the water separator 4201 may circulate water supplied from the raw material water supply unit 120 to the economizer 4203 to separate moisture from _{the phase-changed steam H 2 0.} The water separator 4201 may separate moisture using a centrifuge, a metal mesh, a baffle plate, or the like. The water separated by the water separator 4201 may be discharged to the outside or may be supplied to the raw material water supply unit 120 and stored. _{Steam (H 2} 0) from which water is separated by the water separator 4201 may be heated by the economizer 4203 and supplied to the turbine unit 500. Although not shown, a by-pass line may be installed in the recovery pipe circulating from the economizer 4203 to the water separator 4201 to use steam (H ₂ 0) for other purposes.

_{The economizer 4203 heats the steam (H 2} 0) supplied from the water separator 4201. The economizer 4203 may heat water supplied from the raw material water supply unit 120 through the water separator 4201. _{Here, the economizer 4203 may heat water or steam (H 2} 0) supplied from the water separator 4201 as a heat source using waste heat of the exhaust gas discharged from the gas engine 1000. The gas engine 1000 may be installed to be connected to the LNG evaporator 4101 and receive fuel including hydrogen generated by the LNG evaporator 4101 of the raw material processing unit 410 to generate a driving force. In this case, the fuel containing hydrogen may be NG (natural gas) vaporized by the vaporizer 4102. Although not shown, the economizer 4203 is installed between the exhaust pipe and the exhaust outlet of the gas engine 1000. The economizer 4203 includes an inlet pipe, a high pressure evaporator, an intermediate pipe, a low pressure evaporator, and an outlet pipe. The inlet pipe is connected to the exhaust pipe of the gas engine 1000 to guide the exhaust gas discharged from the gas engine 1000 to the high pressure evaporator. The intermediate pipe guides the exhaust gas after heat exchange in the high pressure evaporator to the low pressure evaporator. The outlet pipe guides the exhaust gas after heat exchange in the low pressure evaporator to the exhaust outlet. _{Steam (H 2} 0) supplied from the water separator 4201 is heat-exchanged with the high-temperature exhaust gas discharged from the gas engine 1000 while passing through the high-pressure evaporator and the low-pressure evaporator. _{Steam (H 2} 0) heat-exchanged by the economizer 4203 may be supplied to the turbine unit 500 and used to generate electricity. _{Steam (H 2} 0) discharged from the turbine part 500 may be partially branched and then supplied to the reformer 430 to undergo a reforming reaction with NG (natural gas) supplied from the LNG evaporator 4101.

5 to 7, the turbine part 500 is installed between the economizer 4203 and the reformer 430. The turbine unit 500 generates electricity _{from steam (H 2} 0) discharged from the economizer 4203. For example, the turbine unit 500 may be a steam turbine. Although not shown, the turbine unit 500 may be implemented including a diaphragm, a rotor, a bucket, and a generator. The diaphragm is provided with a fixed blade, and the bucket is provided with a rotary blade. _{The fixed blade changes the direction of the steam (H 2} 0) discharged from the economizer 4203 and guides the rotor to the rotor, and the rotor rotates the rotor by generating a rotational force by _{the steam (H 2} 0) induced from the fixed blade. Let it. The rotor is installed to be connected to the generator. The generator may generate electricity as the rotor rotates. Accordingly, the turbine unit 500 may generate electricity _{from steam (H 2 0) discharged from the economizer 4203.} Electricity produced by the turbine unit 500 may be supplied to an electric facility or an energy storage device, for example, a battery. The amount of electricity produced in the turbine part 500 is changed according to the temperature and pressure of the _{steam H 2} 0 supplied from the economizer 4203. _{For example, when the pressure of the steam H 2} 0 supplied from the economizer 4203, that is, the steam pressure is high, the turbine unit 500 may increase the amount of electricity produced by rotating the rotor faster. _{Steam (H 2} 0) passing through the turbine part 500 is partially branched and then supplied to the reformer 430 and supplied from the raw material supply unit 110 so that fuel containing hydrogen is supplied to the fuel cell 210 It can be reformed and reacted with raw materials.

Accordingly, the first embodiment of the fuel cell system 200 according to the present invention can achieve the following operational effects.

First, the first embodiment of the fuel cell system 200 according to the present invention is steam supplied to the turbine unit 500 and the reformer 430 by using waste heat of exhaust gas discharged from the gas engine 1000. by being arranged to heat the (H ₂ 0), because the fuel supplied to the heating apparatus for generating a conventional steam (H ₂ 0) can be used for electricity production may increase the electrical output.

Second, the first embodiment of the fuel cell system 200 according to the present invention is steam supplied to the turbine unit 500 and the reformer 430 using waste heat of exhaust gas discharged from the gas engine 1000. By implementing to heat (H ₂ 0), it is _{possible to omit a separate heating device for generating steam (H 2} 0), so not only can the construction cost consumed to generate electricity can be reduced, but also the versatility of the installation space. You can increase it.

Third, in the first embodiment of the fuel cell system 200 according to the present invention, by disposing the turbine unit 500 between the economizer 4203 and the reformer 430, separate from the fuel cell 210 Since additional electricity can be produced, the efficiency of electricity production can be improved.

Referring to FIG. 8, the second embodiment of the fuel cell system 200 according to the present invention may further include an air supply unit 130 and a first heat exchange unit 600.

The air supply unit 130 is installed to supply air to the fuel cell 210, the combustor 440, and the gas engine 1000. In general, air refers to a gas including nitrogen, oxygen, carbon dioxide, and the like, but in the present specification, nitrogen, carbon dioxide, or all gases other than oxygen are removed from the air. The air supply unit 130 may include an air storage tank and a device (eg, a blower) supplying air from the air storage tank. As another example, the air supply unit 130 may be implemented to receive external air, compress it, and then supply compressed high-pressure air or supply it at normal pressure.

The first heat exchange unit 600 heat-exchanges the steam (H ₂ O) circulated from the turbine unit 500 to the water separator 4201 and the air supplied from the air supply unit 130. _{In this case, the steam (H 2} O) circulated from the turbine part 500 to the water separator 4201 becomes a heat source for heating the air supplied to the fuel cell 210 and the combustor 440. Accordingly, the first heat exchange unit 600 may heat the air supplied to the fuel cell 210 and the combustor 440. The fuel cell 210 improves electricity production efficiency at an appropriate operating temperature. For example, in the case of a phosphoric acid fuel cell (PAFC), the operating temperature is maintained at 190 to 210°C, in the case of a molten carbonate fuel cell (MCFC), the operating temperature is maintained at 550 to 650°C. In this case, the operating temperature is maintained at 650 to 1000°C, and in the case of a polymer electrolyte fuel cell (PEMFC), the operating temperature is maintained at 30 to 80°C. Accordingly, the first heat exchange unit 600 may preheat the air supplied to the fuel cell 210 so that the fuel cell 210 reaches an appropriate operating temperature within a short time. _{Although not shown, the control unit 250 controls the amount of steam (H 2} 0) supplied from the turbine unit 500 to the first heat exchange unit 600 to reduce the amount of air supplied to the fuel cell 210. You can adjust the temperature. For example, the control unit 250 increases the temperature of the air supplied to the fuel cell 210 by increasing the amount of _{steam (H 2} 0) supplied to the first heat exchange unit 600 so that the fuel cell 210 The operating temperature of the can be increased. The control unit 250 lowers the temperature of the air supplied to the fuel cell 210 by reducing the amount of _{steam (H 2} 0) supplied to the first heat exchange unit 600 to operate the fuel cell 210 You can also lower the temperature. The control unit 250 may adjust the operating temperature of the fuel cell 210 by adjusting the amount of air supplied to the first heat exchange unit 600.

Accordingly, the second embodiment of the fuel cell system 200 according to the present invention can achieve the following operational effects.

First, the second embodiment of the fuel cell system 200 according to the present invention is implemented to control the temperature of air supplied to the fuel cell 210, thereby heating air compared to the case of using air supplied at room temperature. Since the heat source for the fuel cell 210 may be omitted, the efficiency of electricity production of the fuel cell 210 may be improved.

Second, the second embodiment of the fuel cell system 200 according to the present invention is implemented to heat air supplied to the combustor 440, thereby reducing heat loss generated by fuel combustion in the combustor 440 It is possible to shorten the time for preheating to the temperature required for the reforming reaction in the reformer 430.

Referring to FIG. 9, a third embodiment of the fuel cell system 200 according to the present invention may further include a second heat exchange unit 700.

The second heat exchange unit 700 is installed between the LNG evaporator 4101 and the water separator 4201. The second heat exchange unit 700 heat-exchanges the exhaust gas discharged from the fuel cell 210 and condensed water in the exhaust gas supplied from the combustor 440 and discharged to the LNG evaporator 4101. For example, the second heat exchange unit 700 closes a pipe through which exhaust gas flows from the LNG evaporator 4101 to the water separator 4201 and a pipe through which the exhaust gas discharged from the fuel cell 210 flows. By doing so, heat exchange can be performed. In this case, the waste heat of the exhaust gas discharged from the fuel cell 210 becomes a heat source for heating the condensed water in the exhaust gas discharged to the LNG evaporator 4101. Accordingly, the second heat exchange unit 700 vaporizes LNG in the LNG evaporator 4101 and then heats the water condensed in the condenser 4202 as the temperature is lowered. Alternatively, gaseous water) can be supplied. When the amount of water required in the fuel cell system 200 is insufficient, water may be supplied from the raw material water supply unit 120 (eg, a water tank) to the front end of the second heat exchange unit 700 to supplement it. In addition, a by-pass is installed in the pipeline through which the exhaust gas of the fuel cell 210 is supplied to the second heat exchange unit 700, so that the exhaust gas of the fuel cell 210 is directly supplied to the combustor 440. You can do it.

Although not shown, steam supplied from the LNG evaporator 4101 to the water separator 4201 including the second heat exchange unit 700 in the second embodiment including the first heat exchange unit 600 (H ₂ You can increase the temperature of 0).

7 to 9, the second and third embodiments of the fuel cell system 200 according to the present invention may further include an LNG evaporator 4101 and a vaporizer 4102.

The LNG evaporator 4101 may receive naturally vaporized NG (natural gas) from the LNG storage tank 110 or LNG forcibly transferred by a pump. The LNG evaporator 4101 may vaporize LNG (liquefied natural gas) by installing the vaporizer 4102 therein.

The vaporizer 4102 is installed to be connected to the combustor 440 to vaporize LNG. For example, the vaporizer 4102 may vaporize LNG (liquefied natural gas) using waste heat of exhaust gas discharged from the combustor 440 as a heat source. The LNG evaporator 4101 is installed to be connected to the reformer 430, the combustor 440, and the gas engine 1000. Accordingly, NG (natural gas) vaporized in the LNG evaporator 4101 is supplied to the reformer 430, the combustor 440 and the gas engine 1000 through an impeller, a blower, etc. Can be. The exhaust gas of the combustor 440 that has passed through the vaporizer 4102 may be supplied to a condenser 4202. The condenser 4202 may condense the exhaust gas of _{the combustor 440 so that the steam (H 2} 0) contained in the exhaust gas of the combustor 440 is phase-changed to water. Water condensed in the condenser 4202 may be supplied to the water separator 4201. Residual gas other than water condensed in the condenser 4202 may be discharged to the outside.

Accordingly, the third embodiment of the fuel cell system 200 according to the present invention is implemented to vaporize LNG (liquefied natural gas) by using the waste heat of the exhaust gas discharged from the combustor 440. Since the heating device can be omitted, the construction cost consumed to generate electricity can be reduced.

Hereinafter, an embodiment of a ship according to the present invention will be described in detail with reference to the accompanying drawings.

10 is a schematic diagram showing an example of a ship according to the present invention.

Referring to Figures 1 to 10, the ship 900 according to the present invention is a power generation system 100 is installed in the hull 910. The power generation system 100 includes a fuel cell system 200 and a gas engine 1000. The fuel cell system 200 includes a fuel cell 210, a hydrogen generation unit 400, a turbine unit 500, a first heat exchange unit 600 and a second heat exchange unit 700. The gas engine 1000 is installed to be connected to the hydrogen generating unit 400. The fuel cell system 200 includes the fuel cell 210, the hydrogen generation unit 400, the turbine unit 500, the first heat exchange unit 600, the second heat exchange unit 700, etc. It may be implemented by including the control unit 250 that controls the operation of all components.

The fuel cell 210 may receive fuel containing hydrogen from the hydrogen generator 400 and generate electricity through an electrochemical reaction. For example, the fuel cell 210 may receive fuel containing hydrogen from the reformer 430 and generate electricity through an electrochemical reaction. The fuel cell 210 includes an alkali fuel cell (AFC), a phosphoric acid fuel cell (PAFC), a molten carbonate fuel cell (MCFC), a solid oxide fuel cell (SOFC), a polymer electrolyte fuel cell (PEMFC), and a direct methanol fuel. It may be implemented by including at least one fuel cell among the cells DMFC.

The hydrogen generation unit 400 may be implemented by including a raw material processing unit 410, a raw material water treatment unit 420, a reformer 430, and a combustor 440. The raw material processing unit 410 may include an LNG evaporator 4101 and a vaporizer 4102. The raw material water treatment unit 420 may include a water separator 4101, a condenser 4202, and an economizer 4203. The hydrogen generation unit 400 receives LNG from the raw material supply unit 110 and receives steam (H ₂ 0) from the raw material water supply unit 120 to provide fuel containing hydrogen required for the fuel cell 210. Create _{In this case, the economizer 4203 may heat the steam H 2} 0 supplied to the turbine unit 500 by using waste heat of the exhaust gas discharged from the gas engine 1000.

The turbine unit 500 generates electricity _{from steam (H 2} O) discharged from the economizer 4203. For example, the turbine unit 500 may be a steam turbine. Electricity produced by the turbine unit 500 may be supplied to an electric facility or an energy storage device, for example, a battery. _{Steam (H 2} O) passing through the turbine part 500 may be supplied to the reformer 430 and used for a reforming reaction. _{Some of the steam (H 2} O) supplied from the turbine part 500 to the reformer 430 may be supplied to the heat exchange part 600 and used as a heat source for heating the air supplied from the air supply part 130. have.

The first heat exchange unit 600 heat-exchanges steam (H ₂ O) supplied from the turbine unit 500 to the water separator 4201 and air supplied from the air supply unit 130. In this case, the steam (H ₂ O) discharged from the turbine part 500 becomes a heat source for heating the air supplied from the air supply part 130. Accordingly, the first heat exchanger 600 may heat air supplied to the fuel cell 210 and the combustor 440. Accordingly, the first heat exchange unit 600 may improve the efficiency of electricity production of the fuel cell 210. The first heat exchange part 600 is implemented to heat the air supplied to the combustor 440, so that heat loss generated by fuel combustion in the combustor 440 is reduced, so that the reforming reaction in the reformer 430 is required. The time to preheat to temperature can be shortened.

The second heat exchange unit 700 is installed between the LNG evaporator 4101 and the water separator 4201. The second heat exchange unit 700 heat-exchanges the exhaust gas discharged from the fuel cell 210 and condensed water in the exhaust gas supplied from the combustor 440 and discharged to the LNG evaporator 4101. Accordingly, the second heat exchange unit 700 vaporizes LNG in the LNG evaporator 4101 and then heats the water condensed in the condenser 4202 as the temperature is lowered. Or gaseous water) can be supplied.

Therefore, the ship 900 according to the present invention can achieve the following operational effects.

_{First, the ship 900 according to the present invention is implemented to heat the steam (H 2} 0) supplied to the reformer 430 using waste heat of the exhaust gas discharged from the gas engine 1000, so that the conventional heating device Since the supplied fuel can be used for electricity production, electricity production can be increased.

_{Second, the ship 900 according to the present invention is implemented to heat the steam (H 2} 0) supplied to the reformer 430 by using the waste heat of the exhaust gas discharged from the gas engine 1000, so that a separate heating device Since can be omitted, not only can the construction cost consumed to produce electricity can be reduced, but also the versatility of the installation space can be increased.

Third, the ship 900 according to the present invention can additionally produce electricity separately from the fuel cell 210 by arranging the turbine unit 500 between the economizer 4203 and the reformer 430, thereby generating electricity. Efficiency can be improved.

Third, the ship 900 according to the present invention is implemented to vaporize LNG (liquefied natural gas) as a heat source using waste heat of the exhaust gas discharged from the combustor 440, so that a separate for vaporizing LNG (liquefied natural gas) Since the heating device of can be omitted, the construction cost consumed to generate electricity can be reduced.

Fourth, the ship 900 according to the present invention is implemented to control the temperature of the air supplied to the fuel cell 210 and the combustor 440, thereby improving the electricity production efficiency of the fuel cell 210, The efficiency of the reformer 430 may be improved.

1 to 10, the hull 910 forms the overall appearance of the ship 900 according to the present invention. The hull 910 is provided with an engine generating propulsion for moving the hull 910 and a raw material supply unit 110 supplying raw materials to the engine. For example, raw materials are hydrocarbon-based materials, such as NG (natural gas), LPG (liquefied petroleum gas), methanol (CH ₃ OH), ethanol (C ₂ H ₅ OH), gasoline, dimethyl ether, methane gas, hydrogen. Liquid raw materials with relatively high molecular weight, such as refined off-gas, pure hydrogen, and marine gas oil (MGO), marine diesel oil (MDO), heavy fuel oil (HFO), etc. I can.

The hull 910 is provided with a raw material water storage tank for storing raw material water and a raw material water supply unit 120 for supplying raw material water from the raw material water storage tank. The raw material water may be, for example, fresh water or sea water. As another example, the raw material water may be water that has been treated to remove impurities or remove ions from fresh water, or seawater.

An air supply unit 130 for supplying air to the fuel cell system 200 is installed in the hull 910. In general, air refers to a gas including nitrogen, oxygen, carbon dioxide, and the like, but in the present specification, all gases other than oxygen such as nitrogen, carbon dioxide, or two gases are removed from the air. The air supply unit 130 may include an air storage tank and a device (eg, a blower) supplying air from the air storage tank. As another example, the air supply unit 130 may be implemented to supply compressed high-pressure air after receiving and compressing external air, or supplying it at normal pressure after removing impurities from the external air.

The hull 910 includes a DC-DC converter for boosting or reducing the output voltage from the fuel cell system 200 and a DC-AC inverter for converting a DC current (DC) into an AC current (AC). The conversion unit 140 is installed. The power conversion unit 140 discharges electricity supplied from the fuel cell system 200 to a power load. In the case of a ship, for example, the power load may be an electrical facility in a ship such as basic electrical facilities of a ship and electrical facilities of a cargo system. Although not shown, the power conversion unit 140 may be implemented to supply electricity to an energy storage device, for example, a battery.

In this specification, the term “ship” is not limited to a structure sailing on the water, as well as a structure that sails on the water, as well as a floating crude oil production storage and handling facility (FPSO) that floats on the water and performs work. Includes the same marine structure.

Until now, the present specification has been described with reference to the embodiments shown in the drawings so that those of ordinary skill in the art to which the present invention pertains can easily understand and reproduce the present invention. Those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible from the embodiments of the present invention. Therefore, the true technical protection scope of the present invention should be determined only by the appended claims.

100: power generation system
110: raw material supply unit 120: raw material water supply unit
130: air supply unit 140: power conversion unit
200: fuel cell system
210: fuel cell 250: control unit
400: hydrogen generation unit 500: turbine unit
600: first heat exchange unit 700: second heat exchange unit
1000: gas engine

Claims (5)

As a ship,
A raw material supply unit for supplying raw materials;
A raw material water supply unit for supplying raw material water;
A fuel cell system for generating electricity by using the raw material supplied from the raw material supply unit and the raw material water supplied from the raw material water supply unit; And
Including a power conversion unit for converting the direct current (DC) output from the fuel cell system into an alternating current (AC),
The fuel cell system includes a hydrogen generation unit for generating fuel containing hydrogen, a fuel cell for generating electricity using fuel supplied from the hydrogen generation unit, and a turbine unit for generating electricity,
The hydrogen generating unit is a raw material processing unit for pretreating LNG supplied from an LNG storage tank storing LNG (liquefied natural gas), a raw material water treatment unit for pretreating the raw material water supplied from the raw material water supply unit, and a pretreatment supplied from the raw material processing unit. A reformer for reforming the converted fuel and steam (H ₂ 0) supplied from the raw material water treatment unit, and a combustor for heating the reformer,
The raw material processing unit uses waste heat of exhaust gas discharged from the combustor as a heat source for vaporizing LNG,
The raw material water treatment unit includes a water separator for separating water from _{the steam (H 2} 0) to pretreat the raw material water supplied from the raw water supply unit, and an economizer for heating the _{steam (H 2 0) supplied from the water separator.} Includes,
The turbine unit generates electricity from steam (H _{2 0) supplied from the economizer,
The reformer produces a fuel containing hydrogen by reforming a part of the steam (H 2} 0) passing through the turbine part and the raw material supplied from the raw material supply part,
The economizer heats the _{steam (H 2} 0) supplied from the water separator by using waste heat from the exhaust gas discharged from the gas engine generating propulsion by burning NG (natural gas) supplied from the raw material processing unit as a heat source. Later supplied to the turbine unit,
An air supply unit for supplying air to the fuel cell and the combustor;
A first heat exchange unit heat-exchanging steam (H20) supplied from the turbine unit to the water separator and air supplied from the air supply unit so that the air supplied to the fuel cell and the combustor is heated; And
Further comprising a second heat exchange unit for supplying heated water or steam (H20) to the steam separator by exchanging condensed water in the exhaust gas passing through the raw material processing unit after being discharged from the combustor with the exhaust gas discharged from the fuel cell. Ship, characterized in that. A hydrogen generator for generating fuel containing hydrogen;
A fuel cell for generating electricity using fuel supplied from the hydrogen generating unit; And
Including a turbine for generating electricity,
The hydrogen generation unit is a raw material processing unit for pre-treating LNG supplied from an LNG storage tank storing LNG (liquefied natural gas), a raw material water treatment unit for pretreating the raw material water supplied from the raw material water supply unit, and the pretreated pre-treated supplied from the raw material processing unit _{A reformer for reforming the fuel and steam (H 2} 0) supplied from the raw material water treatment unit, and a combustor for heating the reformer,
The raw material processing unit uses waste heat of exhaust gas discharged from the combustor as a heat source for vaporizing LNG,
The raw material water treatment unit includes a water separator for separating water from _{the steam (H 2} 0) to pretreat the raw material water supplied from the raw water supply unit, and an economizer for heating the _{steam (H 2 0) supplied from the water separator.} Including,
The turbine unit generates electricity from steam (H _{2 0) supplied from the economizer,
The reformer produces a fuel containing hydrogen by reforming a part of steam (H 2} 0) passing through the turbine part and a raw material supplied from the raw material supply part
The economizer heats the _{steam (H 2} 0) supplied from the water separator by using waste heat of the exhaust gas discharged from the gas engine generating propulsion by burning NG (natural gas) supplied from the raw material processing unit as a heat source. Later supplied to the turbine part,
An air supply unit for supplying air to the fuel cell and the combustor;
A first heat exchange unit for heat-exchanging steam (H20) supplied from the turbine unit to the water separator and air supplied from the air supply unit so that the air supplied to the fuel cell and the combustor is heated; And
Further comprising a second heat exchange unit for supplying heated water or steam (H20) to the steam separator by exchanging condensed water in the exhaust gas discharged from the combustor and passing through the raw material processing unit with exhaust gas discharged from the fuel cell A fuel cell system, characterized in that. delete delete The method of claim 2,
The raw material processing unit includes an LNG evaporator for evaporating LNG supplied from the LNG storage tank, and a vaporizer installed in the LNG evaporator,
The fuel cell system, wherein the vaporizer uses waste heat of exhaust gas discharged from the combustor as a heat source for vaporizing LNG.

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