JPS61190867A - Fuel cell power generating system - Google Patents

Abstract

PURPOSE:To increase the total heat efficiency of system by supplying heat generated by power generation to a hydrogen generating part for methanol decomposition. CONSTITUTION:The heat generated by power generation in a fuel cell 6 is given to a heating medium 10 through a cooler 9 and supplied to a heater 3 inside a reactor 1 with a pump 11 for methanol decomposition. The endothermic reaction in the reactor 1 is combined with exothermic in the fuel cell 6 for keeping heat balance, and the heat is effectively utilized to increase the total efficiency of a system.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a fuel cell power generation system that generates hydrogen using methanol and uses this hydrogen as fuel, and particularly relates to a fuel cell power generation system that uses this hydrogen as fuel, and in particular, to improve the overall thermal efficiency of the system. The present invention relates to a fuel cell power generation system.

[Technical background of the invention]

2. Description of the Related Art Fuel cells are conventionally known as devices that directly convert energy contained in fuel into electrical energy. This fuel cell usually consists of a pair of porous electrodes with an electrolyte sandwiched between them, and the back surface of one electrode is brought into contact with fuel, and the back surface of the other electrode is brought into contact with an oxidizing agent. Electrical energy is extracted from between the electrodes using a reaction, and as long as the fuel and oxidizer are supplied, electrical energy can be extracted with high conversion efficiency.

By the way, among the fuel cells based on the above principle,
Hydrogen-oxygen fuel cells using hydrogen as a fuel and oxygen as an oxidant are already known.

Hydrocarbons such as natural gas and LPG are generally used as hydrogen to be supplied to this type of fuel cell.

Moreover, as a hydrogen source, methanol can also be used instead of these hydrocarbons. In this case, hydrogen is obtained by steam reforming methanol.

That is, this is a method in which a reactor filled with a reforming catalyst is heated, and a mixed gas of methanol and steam is passed through the reactor to cause a reaction, thereby producing a mixed gas mainly consisting of hydrogen and carbon dioxide. Since this reforming reaction is an endothermic reaction,
It is necessary to supply the heat necessary for the endothermic reaction, but conventionally the raw material methanol is combusted, or the waste water discharged from the fuel electrode of the fuel cell is used as fuel.

[Problems with background technology]

As mentioned above, the conventional fuel cell power generation system requires a reactor to decompose methanol, and further requires fuel to heat the reactor. On the other hand, this type of fuel cell usually generates heat due to irreversible processes (ohmic heat, etc.) within the cell, and this must be removed by some method.

However, since this heat is usually recovered as water vapor at a temperature of about 150° C., its uses are limited in some cases, resulting in an unfavorable result from the viewpoint of the overall thermal efficiency of the system.

[Purpose of the invention]

The present invention was made in consideration of the above circumstances, and
The purpose is to provide a fuel cell power generation system that can improve the overall thermal efficiency of the system by combining endothermic reactions and heat generation within the battery to achieve heat balance and effectively utilize heat.

[Summary of the invention]

In order to achieve the above object, the present invention includes a hydrogen generating section that decomposes methanol to generate hydrogen, and hydrogen gas obtained in this hydrogen generating section is introduced into a fuel electrode as a fuel, and an oxidizing agent is introduced into an oxidizing electrode. and a fuel cell that generates electricity by electrochemically reacting them, and supplying the heat generated by the electricity generation in the fuel cell as the heat required for methanol decomposition in the hydrogen generation section. The hydrogen generation reaction necessary for fuel cells is an endothermic reaction, while fuel cells generate heat, so by combining the two, we are trying to balance the heat balance and use heat effectively within the system. It is characterized by what it did.

[Embodiments of the invention]

First, the concept of the present invention will be described. There are generally two methods for generating hydrogen from methanol:

CH30H-HCHO+H2 (ΔH= 28 cat mol) ------1CH30H
+H20-+CO2+3H2ku ΔH=11.9
cal mol) ---2 where 1 is a dehydrogenation reaction and 2 is a steam reforming reaction. In the case of reaction 1, since the reaction proceeds at a relatively low temperature compared to the temperature of the fuel cell (around 200° C.), it is possible to effectively utilize the heat generated in the fuel cell.

On the other hand, for reaction 2, two systems can be considered. That is, one of them is a case where the hydrogen generating section is placed outside the fuel cell system. In this case, by configuring the system so that the temperature of the heat generated in the fuel cell is raised by a heat pump and reaction 2 proceeds, it becomes possible to effectively utilize the heat. The other method is to place the hydrogen generating section within the fuel cell system, in other words, the hydrogen generating section and the fuel cell are integrated into a system, and the hydrogen generating section is placed adjacent to the fuel electrode of the fuel cell to conduct heat. By arranging a highly porous methanol steam reforming catalyst, the reaction 2 occurs, and the hydrogen obtained here is consumed in the fuel cell reaction, making it possible to generate electricity. The heat generated by this power generation is given to the adjacent methanol steam reforming catalyst by thermal conduction, and the hydrogen produced in 2 is consumed, so the reaction progresses in the right direction even at a relatively low temperature. Further, the heat generated inside the hydrogen-oxygen fuel cell is approximately 30 cal mol 2, although it depends on the cell performance, and is therefore sufficient to advance the reaction 2.

An embodiment of the present invention based on the above concept will be described below with reference to the drawings. First, FIG. 1 is a block diagram showing an example of the configuration of a fuel cell power generation system according to a first embodiment of the present invention in which the reaction 1 described above and a fuel cell are combined.

In the figure, numeral 1 is a reactor filled with a catalyst for decomposing methanol 2 to produce hydrogen and formaldehyde by the above-mentioned reaction 1, and a heater 3 is housed inside the reactor. Further, 4 is a formaldehyde separator that separates formaldehyde 5 from the product produced in the reactor 1, and these reactor 1 and formaldehyde separator 4 constitute a hydrogen generating section. On the other hand, 6 is a fuel cell in which hydrogen 7 from the formaldehyde separator 4 is introduced into the fuel electrode as a fuel, and air 8 is introduced into the oxidizer electrode as an oxidizer, and these are electrochemically reacted to generate electricity. be. Furthermore, a cooler 9 is provided inside the fuel cell 6, and heat generated by power generation is transferred to a heat medium 10.
By supplying this to the heater 3 in the reactor 1 using a pump 11, the heat required for decomposing the methanol is supplied.

In the fuel cell power generation system having such a configuration, methanol 2 is supplied to the reactor 1 and the above reaction 1 is caused to occur at a boiling point of 65°C. As a result, hydrogen and formaldehyde are generated in the reactor 1. Next, the formaldehyde 5 generated here is separated by a formaldehyde separator 4, and only hydrogen 2 is introduced into the fuel electrode of the fuel cell 6. On the other hand, oxygen necessary for the reaction can be obtained by introducing air 8 into the fuel cell 6 . In this fuel cell 6, hydrogen and oxygen react electrochemically to generate electricity, and the heat generated here is removed by heating a heat medium 10 in a cooler 9. This heat medium 10 is sent by a pump 11 to a heater 3 in the reactor 1, where it is supplied as heat for proceeding with the reaction 1 described above. Through the above cycle, electric power can be generated by supplying methanol 2.

As described above, the fuel cell power generation system according to this embodiment includes a reactor 1 which houses a heater 3 therein, is filled with a catalyst, and decomposes methanol 2 through a dehydrogenation reaction to produce hydrogen and formaldehyde, and this reactor. A hydrogen generation section includes a formaldehyde separator 4 that separates formaldehyde 5 from the product generated in step 1, and a cooler 9 inside, which introduces hydrogen 7 from the formaldehyde separator 4 into the fuel electrode as fuel, and also introduces air into the fuel electrode. 8 is introduced into the oxidizer electrode as an oxidant, and these are electrochemically reacted to generate electricity. By supplying the medium 10 and circulating it to the heater 3 in the reactor 1 using a pump 11, the heat required for decomposing the methanol 2 is supplied.

Therefore, it is possible to achieve a heat balance by combining the endothermic reaction in the reactor 1 and the heat generation in the fuel cell 6, and to effectively utilize the heat to significantly improve the overall thermal efficiency of the system.

Next, FIG. 2 is a block diagram showing an example of the configuration of a fuel cell power generation system according to a second embodiment of the present invention in which the reaction 2 described above and a fuel cell are combined, and is the same as FIG. 1. The same reference numerals are given to the parts, and the explanation thereof is omitted, and only the different parts will be described here. In other words, in FIG. 2, since reaction 2 is a steam reforming reaction, a mixed gas of the methanol 2 and steam 12 is introduced into the reactor 1, the pump 11 is deleted, and a heater ( - A pump 13 is provided.In this case, since formaldehyde is not generated, the formaldehyde separator 4 is unnecessary and is also omitted.

In a fuel cell power generation system with such a configuration, reaction 2
is a slightly higher temperature than that of reaction 1 above, 250 to 270
℃ is required, the heat pump 13 is used to increase the temperature of the heat medium 10. This allows cooler 9
The heat absorbed in 2 is supplied to the reactor 1 by the heater 3, reaction 2 proceeds, and hydrogen 7 is supplied to the fuel cell 6, making it possible to generate electricity.

Next, FIG. 3 is a block diagram showing a configuration example of a fuel cell power generation system that effectively utilizes reaction heat according to a third embodiment of the present invention, in which the reaction 2 described above and a fuel cell are combined. , the same parts as in FIG. 1 are designated by the same reference numerals. In other words, FIG. 3 shows a system in which the hydrogen generating section is provided within the fuel cell system and the hydrogen generating section and the fuel cell are integrated.

In the figure, a fuel electrode 15 and an oxidizer electrode 16 are arranged with an electrolyte 14 in between to form a fuel cell main body. Further, on the opposite side of the fuel electrode 15 from the electrolyte 14 in the fuel cell main body, a porous material 17 with good thermal conductivity supporting a methanol steam reforming catalyst is provided as a hydrogen generating part, and an oxidizing agent 4f! An air flow path 18 is provided on the opposite side of the 16 electrolyte 14. Further, a mixed gas of methanol 2 and steam 12 is introduced into the methanol steam reforming catalyst 17, and hydrogen 7 obtained by steam reforming is introduced here.
is introduced into the fuel electrode 15, and the air flow path 18 is
Air 8 is introduced into the oxidizing agent electrode 16 through the oxidizing agent electrode 16, and the oxidizing agent electrode 16 is caused to react electrochemically to generate electricity.

In the fuel cell power generation system having such a configuration, the mixed gas of methanol 2 and steam 12 as raw materials undergoes the steam reforming reaction 2 described above in the methanol steam reforming catalyst 17, and hydrogen 7 is generated. In this case, the steam reforming reaction occurs at a temperature lower than the normal temperature, that is, the temperature of the fuel cell (200°C
This will occur at a slightly lower temperature than before and after. The reason for this is that the generated hydrogen 7 is consumed in the fuel cell reaction as described below. This hydrogen 7 becomes a hydrogen ion (2H'') 19 through a reaction of H2-+28''+2e----3 at the fuel electrode 15 of the fuel cell, moves within the electrolyte 14, and reaches the oxidizer electrode 16.

On the other hand, oxygen <1202) 20 in air 8 is
8, passes through the fuel electrode 16 to reach the electrolyte [14, and the electrolyte 1
4 and the fuel electrode 16, the electrons (
2e-) Reacts with 21 to produce water.

2H” +1202 +2e-4H20−−・−4 In other words, electricity is generated by the movement of electrons (2e−)21 through the external circuit, while hydrogen <2H+)19
Water is produced from oxygen (1202) 20 and a fuel cell reaction is formed.

Note that the present invention is not limited to the above embodiments,
The present invention can be modified and implemented in various ways without changing the gist thereof.

(Effects of the Invention) As explained above, according to the present invention, there is a hydrogen generating section that decomposes methanol to generate hydrogen, and hydrogen gas obtained in this hydrogen generating section is introduced into the fuel electrode as fuel and oxidized. It consists of a fuel cell that generates electricity by introducing an oxidizing agent into an oxidizer electrode and electrochemically reacting the two, and the heat generated by the electricity generation in the fuel cell is used as the heat required for methanol decomposition in the hydrogen generation section. As a result, we have created an extremely reliable fuel cell power generation system that combines endothermic reactions and heat generation within the battery to balance heat and effectively utilize heat to improve the overall thermal efficiency of the system. Can be provided.

[Brief explanation of drawings]

FIG. 1 is a configuration block diagram showing one embodiment of the present invention, and FIG.
3 and 3 are block diagrams showing other embodiments of the present invention, respectively. DESCRIPTION OF SYMBOLS 1...Reactor, 2...Methanol, 3...Heater, 4...Formaldehyde separator, 5...Formaldehyde, 6...Fuel cell, 7...Hydrogen, 8...
・Air, 9... Cooler, 10... Heat medium, 11.
...Pump, 12...Steam, 13...Heat pump, 14...Electrolyte, 15...Fuel electrode, 16...
Oxidizer electrode, 17... Methanol steam reforming catalyst, 18
...Air passage, 19...Hydrogen ion, 20...Oxygen, 21...Electron. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Procedural amendment □1 (0゜4A15B Commissioner of the Patent Office Manabu Shiga ■, Indication of case Patent application No. 15Q-31012 No. 2, Invention Name of fuel cell power generation system 3. Relation to Gu'I Kui which uses 1 [:, Patent applicant (307) Toshiba Corporation (and 1 other person) 4. Attorney's statement 1. Name of invention Fuel Battery Power Generation System 2, Claims A hydrogen generating section that decomposes methanol to generate hydrogen, and introducing the hydrogen obtained in the hydrogen generating section into a fuel electrode as a fuel and introducing an oxidizing agent into the oxidizing agent electrode. , and a fuel cell that generates electricity by electrochemically reacting these, and the heat generated by the electricity generation in the fuel cell is supplied as the heat required for methanol decomposition in the hydrogen generation section. 3. Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a fuel cell power generation system that generates hydrogen using methanol and uses this hydrogen as fuel, and particularly relates to a system for generating hydrogen. The present invention relates to a fuel cell power generation system that can improve the overall thermal efficiency of a fuel cell. [Technical background of the invention] Conventionally, fuel cells have been known as devices that directly convert energy contained in fuel into electrical energy. This fuel cell typically consists of a pair of porous electrodes sandwiching an electrolyte between them. Fuel is brought into contact with the back of one electrode, and an oxidizing agent is brought into contact with the back of the other electrode. Electrical energy is extracted from between the electrodes using an electrochemical reaction, and electrical energy can be extracted with high conversion efficiency as long as the fuel and oxidizer are supplied. By the way, among the fuel cells based on the above principle,
Hydrogen-oxygen fuel cells using hydrogen as a fuel and oxygen as an oxidant are already known. Natural gas is the hydrogen that is supplied to this type of fuel cell. Hydrocarbons such as LPG are commonly used. Furthermore, as a hydrogen source, methanol can also be used in place of these hydrocarbons. In this case, the hydrogen is dissolved in a manner that allows the methanol to be steam reformed. That is, a reactor filled with a reforming catalyst is heated, and a mixed gas of methanol and steam is passed through the reactor to cause a reaction, thereby producing a mixture of gas mainly consisting of hydrogen and carbon dioxide. Since this reforming reaction is an endothermic reaction,
It is necessary to supply the heat necessary for the endothermic reaction, but conventionally the raw material methanol is combusted, or the waste water discharged from the fuel electrode of the fuel cell is used as fuel. [Problems with Background Art] As described above, the conventional fuel cell power generation system requires a reactor to decompose methanol, and also requires fuel to heat the reactor. On the other hand, this type of fuel cell usually generates heat due to irreversible processes (ohmic heat, etc.) within the cell, and this must be removed by some method. However, since this heat is usually recovered as water vapor at about 150° C., its uses are limited in some cases, resulting in an unfavorable result from the viewpoint of the overall thermal efficiency of the system. [Object of the invention] The present invention was made in consideration of the above circumstances, and
The purpose is to provide a fuel cell power generation system that can improve the overall thermal efficiency of the system by combining endothermic reactions and heat generation within the battery to improve the heat balance and effectively utilize the heat. [Summary of the Invention] In order to achieve all of the above objects, the present invention includes a hydrogen generating section that decomposes methanol to generate hydrogen, and hydrogen gas obtained in this hydrogen generating section is introduced into the fuel electrode as a fuel and oxidized. It is composed of a fuel cell that generates electricity by introducing an oxidizing agent into an oxidizer electrode and electrochemically reacting the two, and the heat generated by the electricity generation in the fuel cell is used to decompose methanol in the hydrogen generation section. By supplying it as heat, the hydrogen generation reaction necessary for fuel cells is an endothermic reaction, while fuel cells generate heat, so by combining the two, it is possible to control the heat balance within the system. It is characterized by being designed to effectively utilize heat. [Embodiments of the Invention] First, the concept of the present invention will be described. There are generally two methods for generating hydrogen from methanol: CH,0H-HCHO-1-H2 (ΔH= 28 K
c a l/ino l ) =・−(1) temperature (
(around 200℃), it progresses at a relatively low temperature.
The heat generated by fuel cells can be used effectively. That is, one of them is a case where the hydrogen generating section is placed outside the fuel cell system. In this case, by configuring the system so that the heat generated by the fuel cell is raised by a heat pump and the reaction proceeds, it is possible to make effective use of the heat. , the hydrogen generation section is placed within the fuel cell system, in other words, the hydrogen generation section and the fuel cell are integrated to form a system, and the hydrogen produced by the hot plate is placed adjacent to the fuel electrode of the fuel cell. is consumed in the fuel cell reaction, making it possible to generate electricity.Then, as the generated electricity is consumed, the reaction proceeds in the right direction even at relatively low temperatures.In addition, inside this hydrogen-oxygen fuel cell, The heat generated depends on the performance of the battery, but it is about 30 Kcal/r11oIH2 (sufficient to carry out the entire 2% reaction). This is a block diagram showing an example of the configuration of a fuel cell power generation system according to a first embodiment of the present invention.It is a reactor for producing lumaldehyde, and a heater 3 is housed inside the reactor. 6 is a formaldehyde separator that separates formaldehyde 5 from the product produced in the reactor 1, and these reactor 1 and formaldehyde separator 4 constitute a hydrogen generating section. This is a fuel cell in which hydrogen 7 from the vessel 4 is introduced into the fuel electrode as a fuel, and air 8 is introduced into the oxidizer electrode as an oxidizer, and these are electrochemically reacted to generate electricity. A cooler 9 is provided inside the reactor I, and the heat generated by power generation is supplied as a heat medium 10&C, and this is circulated and supplied to the heater 3 in the reactor I using a T-pump 1), thereby reducing the amount of methanol. In a fuel cell power generation system with such a configuration, hydrogen and formaldehyde are generated in the vessel 1.Next, the formaldehyde 5 generated here is sent to the formaldehyde separator 4. Separated, only hydrogen 2 is sent to fuel cell 6
is introduced into the fuel electrode. on the other hand. Oxygen necessary for the reaction is obtained by introducing air 8f into the fuel cell 6. In this fuel cell 6, hydrogen and oxygen react electrochemically to generate electricity, and the heat generated here is removed by heating a heat medium 10 in a cooler 9. Supplied as. Through the above cycle, electric power can be generated by supplying methanol 2y&-. As mentioned above, the fuel cell power generation system according to the present embodiment houses a heater 3 inside and a reactor 1% filled with a catalyst to decompose methanol 2f (dehydrogenation reaction) to produce hydrogen and formaldehyde. a hydrogen generating section comprising a formaldehyde separator 4 that separates formaldehyde 5 from the product produced in the reactor 1;
□ A cooler 9 is provided inside, and when 71 ft of hydrogen from the formaldehyde separator 4 is introduced into the fuel electrode as fuel, the busy air 8 is introduced into the oxidizer electrode as an oxidizer, and these are electrochemically reacted to generate electricity. The heat generated by the power generation in the fuel cell 6 is applied to a heat medium 10 via a cooler 9t, and the heat is circulated and supplied to the heater 3 in the reactor 1 by a pump 11. By doing so, the heat required for decomposing the methanol 2 is supplied. Therefore, according to the present invention, the heat balance is taken by combining the endothermic reaction in the reactor 1 and the heat generated in the fuel cell 6, and the heat is used effectively to significantly improve the overall thermal efficiency of the system. 2
This is a block diagram showing an example of the configuration of a fuel cell power generation system according to an embodiment of the present invention, and the same parts as in FIG. While introducing the mixed gas into the reactor 1, the above ? Fill. The heat pump 1st was deleted and a heat pump 1st was installed in its place. Further, in this case, since formaldehyde is not generated, the formaldehyde separator 4 is unnecessary and is also omitted. (250 to 270°C), the reaction of increasing the temperature of the heat medium 10 using the heat pump 13 proceeds,
This is a block diagram showing a configuration example of a fuel cell power generation system that effectively uses reaction heat according to a third embodiment of the present invention when a fuel cell 6 VC hydrogen 7 is supplied.
Components that are the same as those in the figures are designated by the same reference numerals. 3 shows a system in which a hydrogen generating section is provided within a fuel cell system, and the hydrogen generating section and the fuel cell are integrated. In the figure, a fuel electrode 15 and an oxidizer electrode 16 are arranged with an electrolyte 14 in between to form a fuel cell main body. Further, on the opposite side of the fuel electrode 15 from the electrolyte 14 in the fuel cell main body, a porous material 17 with good thermal conductivity supporting a methanol steam reforming catalyst is provided as a hydrogen generating part, and a porous material 17 with good thermal conductivity supporting a methanol steam reforming catalyst is provided as a hydrogen generating part. An air flow path 18 is provided on the opposite side from the electrolyte 14. Further, a mixed gas of methanol 2 and steam 12 is introduced into the methanol steam reforming catalyst 17, where 1 t- of hydrogen obtained by steam reforming is introduced.
Air 8'f is introduced into the fuel electrode 15, and is also introduced into the oxidizer electrode 16 through the air passage 18, so that they are electrochemically reacted to generate electricity. In a fuel cell power generation system with such a configuration, the steam reforming reaction when the raw materials methanol 2 and steam 12 are mixed is carried out at a temperature lower than the normal temperature, that is, the temperature of the fuel cell (around 200°C), which is slightly lower than the normal temperature. This will occur at lower temperatures. The reason for this is that the generated hydrogen 1 is consumed in the fuel cell reaction as shown below. This hydrogen 7 is converted to H2→2H++2e− (3) at the fuel cell fuel electrode 15.
Due to the reaction of hydrogen ion (2H+) 19, Shimi solute I
4 and reaches the oxidizer electrode 16. On the other hand, oxygen (1/20□) 20 in the air 8 reaches the electrolyte 14 from the air passage 18 through the fuel electrode 16, and at the interface between the electrolyte 14 and the fuel electrode 16, the electrons (2・-) Reacts with 2 to produce water. 2H+ 1/202' + 2 @ 4 H2O・・−
...-(4) That is, electricity is generated by the movement of electrons (2e-) 21 through the external circuit, while water is generated from hydrogen (2H'') 19 and oxygen (1/202) 20. The reaction of the fuel cell is formed. Note that the present invention is not limited to the above embodiments.
The present invention can be modified and implemented in various ways without changing the gist thereof. [Effects of the Invention] As explained above, according to the present invention, there is provided a hydrogen generating section that decomposes methanol and generates hydrogen. The hydrogen gas obtained in this hydrogen generation section is used as a fuel to fuel an oxidizing agent, and an oxidizing agent is introduced into the oxidizing agent electrode, and these are electrochemically reacted to generate electricity. The heat generated by the battery's power generation is supplied as the heat required for methanol decomposition in the hydrogen generation section, so the system combines the endothermic reaction and the heat generated within the battery to balance the heat and effectively utilize the heat. An extremely reliable fuel cell power generation system that can improve the overall thermal efficiency of the system can be provided. 4. Brief description of the drawings Figure 1 is a block diagram showing one embodiment of the present invention, Figure 2 is a block diagram showing an embodiment of the present invention.
3 and 3 are block diagrams showing other embodiments of the present invention, respectively. DESCRIPTION OF SYMBOLS 1...Reactor, 2...Methanol, 3...Heater, 4...Formaldehyde separator, 5...Formaldehyde, 6...Fuel cell, 7...Hydrogen, 8...
・Air, 9... Cooler, 10... Heat medium, 11.
... Bonde, 12... Steam, 13... Heat pump, 14... Electrolyte, 15... Fuel electrode, 16... Oxidizer electrode, 17... Methanol steam reforming catalyst, 18...
・Air passage, 19...Hydrogen ion, 20...Oxygen,
2.Electron. Applicant's agent Patent attorney Takehiko Suzue Figure 2

Claims (1)

[Claims] There is a hydrogen generating section that decomposes methanol to generate hydrogen, and the hydrogen obtained in this hydrogen generating section is introduced into the fuel electrode as fuel, and an oxidizing agent is introduced into the oxidizing electrode, and these are electrochemically reacted. 1. A fuel cell power generation system comprising: a fuel cell that generates power using a fuel cell; and the fuel cell power generation system is configured to supply heat generated by the power generation of the fuel cell as heat required for methanol decomposition in the hydrogen generating section.