JP5618451B2 - Liquid fuel processing device for fuel cell power generation system - Google Patents

Description

  The present invention relates to a burner unit and a reformer in a liquid fuel processing apparatus of a fuel cell power generation system having a multi-cylindrical structure or a rectangular laminated structure that reforms a liquid fuel desulfurized by a desulfurizer to purify a hydrogen-rich gas. The present invention relates to a liquid fuel processing apparatus of a fuel cell power generation system in which the amount of heat released from the outside is recovered and liquid fuel supplied to a desulfurizer is maintained within a predetermined temperature range.

  In recent polymer electrolyte fuel cell systems, there are many examples in which a hydrocarbon-based gaseous fuel such as city gas or propane is used as a raw fuel and power is generated using reformed hydrogen.

  On the other hand, petroleum-based liquid fuels such as kerosene are attracting attention as raw fuels for fuel cells because of their low cost, storage, and safety advantages.

  Since petroleum-based liquid fuels such as kerosene contain sulfur, the reforming catalyst that performs the reforming reaction to purify hydrogen is exposed to the sulfur in the liquid fuel when used as a raw fuel. As a result, it is poisoned with sulfur and its life is shortened due to deterioration of performance. Therefore, in order to prevent sulfur poisoning of the reforming catalyst, it is necessary to remove sulfur in the liquid fuel by a desulfurizer before introducing the liquid fuel into the reforming catalyst.

  In general, desulfurization of liquid fuel at room temperature shortens the life of the desulfurization catalyst. Therefore, desulfurization performance is ensured at high temperatures. However, when the temperature of the liquid fuel is increased, a part of the liquid fuel is vaporized and the flow rate control becomes unstable. Therefore, it is necessary to keep the inside of the desulfurizer at a high pressure so that the liquid fuel does not vaporize.

  By the way, as a method of keeping the desulfurizer at a high temperature, the desulfurizer itself is heated with an electric heater, or the temperature of the desulfurizer is raised using burner combustion exhaust gas to maintain the liquid fuel at a high temperature. There is (for example, Patent Document 1).

Further, there is a method in which a liquid fuel preheater provided in the previous stage of the desulfurizer is heated with an electric heater or burner combustion exhaust gas, and the liquid fuel supplied to the desulfurizer is maintained at a high temperature. For example, a pipe through which liquid fuel flows is wound around the periphery of a desulfurizer and preheated together with the desulfurizer with an electric heater or superheated steam (for example, Patent Document 2).
JP 2005-255896 A JP 2004-263118 A

  As described above, the method of heating the desulfurizer with the electric heater or heating the liquid fuel preheater provided in the previous stage of the desulfurizer results in a decrease in the efficiency of the fuel cell system, and there are cases where superheated steam is used as a heat source. Depending on the operating condition of the fuel cell during a transient such as a load increase or load decrease, the temperature fluctuates significantly, so the expected exchange heat amount is unstable. If the heat amount is insufficient, it is compensated by an electric heater and vice versa. When heated too much, the temperature of the desulfurizer rises, and there is a problem that the flow rate cannot be controlled and sufficient desulfurization performance cannot be obtained.

  In addition, in order to reduce heat radiation around the high-temperature combustor and reformer, a fuel processing device having a multi-cylindrical structure or a rectangular laminated structure in which a low-temperature CO converter, CO remover, or evaporator is arranged. In this case, it is difficult to surround all of the surroundings of the high-temperature combustor and reformer with a low-temperature reactor due to the structure, and the heat radiation from the part not surrounded by the low-temperature reactor cannot be used, so that the performance of the fuel processor is reduced. There is a problem that leads to.

  The present invention has been made in order to solve the above-described problems, and from the combustor and the reformer up to now without giving an external heat amount that directly affects the output of the fuel cell such as an electric heater. It is an object of the present invention to provide a liquid fuel processing device for a fuel cell power generation system that can efficiently recover the amount of heat released to the fuel cell and can keep the temperature of the liquid fuel supplied to the desulfurizer optimally.

In order to achieve the above object, the present invention provides a liquid fuel processing apparatus for purifying hydrogen-rich gas by reforming liquid fuel desulfurized by a desulfurizer, surrounded by a heat insulating material, and a burner section and a reforming catalyst a reformer layer is provided, this reformer is provided to reduce heat dissipation to the outside, and a low temperature reactor containing evaporating section, the liquid fuel supplied from the external preheated the desulfurizer and a liquid fuel preheater for introducing said liquid fuel preheater, wherein the reformer is disposed on the outer surface of the member facing the combustion space of the burner portion, the external heat dissipation from the member And the burner combustion exhaust gas after supplying the amount of heat necessary for the reaction in the reforming catalyst layer of the reformer and the amount of heat for generating steam in the evaporation section Heat with liquid fuel supplied from the outside By the performing the conversion, in which is configured to preheat the liquid fuel supplied from the outside.

  According to the present invention, the amount of heat released from the combustor and reformer to the atmosphere can be efficiently recovered, and the temperature of the liquid fuel supplied to the desulfurizer can be kept optimal.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
FIG. 1 is a system configuration diagram showing a first embodiment of a liquid fuel processing apparatus of a fuel cell power generation system according to the present invention, and FIG. 2 is a sectional view showing a configuration of a reformer including the liquid fuel preheater of FIG. It is.

  As shown in FIG. 1, the liquid fuel processing apparatus of this embodiment includes a liquid fuel preheater 1, a desulfurizer 2, a reformer 3, a CO converter 4, a CO remover 5, and a heat exchanger 6. It has a structure in which the reactor is combined.

  The reformer 3 has a multi-cylindrical structure as shown in FIG. 2 (a), and is a burner covered with a heat insulating material 13 to which fuel and air are supplied at the center of a bottomed cylindrical body 9 made of a heat insulating material. Part 12, a reforming catalyst layer 10 for purifying a hydrogen-rich gas by reforming liquid fuel on the outside, and an evaporation part 11 for generating steam necessary for reforming on the outermost periphery of the body 9. ing.

  Further, a catalyst layer side exhaust gas flow path is formed between the outer periphery of the reforming catalyst layer 10 and the inner periphery of the body 9 from the bottom side of the fuselage 9 below the burner part 12, and this catalyst layer side exhaust gas flow path An evaporation part side exhaust gas flow path is formed between the outer periphery of the body 9 and the inner periphery of the evaporation part 11 by making the upper part U-turn.

  Further, a liquid fuel preheater 1 is provided in close contact with a metal body (not shown) provided on the outer surface of the bottom of the body 9 and communicated with the exhaust gas passage on the evaporation unit side. A heat insulating material 18 is provided so as to cover the lower surface side and the peripheral portion of the material.

  In the reformer 3 having such a configuration, since the outermost periphery thereof is the evaporation portion 11, the temperature of this portion is about 100 to 200 ° C. and is relatively low, and the amount of heat radiation is small. The temperature of the metal provided in is set to a high state of 400 to 500 ° C. due to heat radiation from the combustion exhaust gas below the heat insulating material 13 exposed to the flame in the burner portion 12.

  The liquid fuel preheater 1 has a liquid fuel supply pipe 1b bent in a bellows shape in a case 1a as shown in FIG. 2 (b), and the liquid fuel inlet is provided via a liquid fuel pump 7. The liquid fuel tank 16 is connected, and the liquid fuel outlet is connected to the inlet of the bottom of the desulfurizer 2. Further, the case 1a is provided with an exhaust gas inlet and an exhaust gas outlet facing each other. The exhaust gas discharged from the exhaust gas inlet through the evaporation part side exhaust gas flow path is introduced into the case, and the exhaust gas flowing through the case is exhausted. It flows out from the exit.

  In this case, the heat exchange rate is increased by reversing the flow direction of the exhaust gas flowing in the case 1a of the liquid fuel preheater 1 and the flow direction of the liquid fuel flowing through the liquid fuel supply pipe 1b.

  The desulfurizer 2 is filled with a desulfurization catalyst 2a, and removes the sulfur content in the liquid fuel from which the liquid fuel heated by the liquid fuel preheater 1 flows from the bottom inlet, and this sulfur content is removed. The liquid fuel is supplied to the catalyst layer 10 of the reformer 3 together with the steam generated in the evaporator 11 on the reformer 3 side via the pressure control valve 8. A heating jacket 17 is provided around the container of the desulfurizer 2, and exhaust gas after heat exchange with the liquid fuel is introduced into the heating jacket 17 by the liquid fuel preheater 1.

  The reformer 3 purifies hydrogen-rich gas (hereinafter referred to as reformed gas) by passing the desulfurized liquid fuel and steam through the reforming catalyst layer 10, and this reformed gas is supplied to the CO converter 4. be introduced.

  The CO converter 4 is for reducing the concentration of CO contained in the reformed gas, and the heat exchanger 6 is for reducing the temperature of the reformed gas flowing into the subsequent stage CO remover 5 to a predetermined value. Further, the CO remover 5 is supplied to the fuel electrode of the fuel cell by reducing the CO concentration to about several ppm by a selective oxidation reaction with the air mixed from the outside in the previous stage.

In this case, the heat exchanger 6 using the modified water as a heat exchange medium, wherein the temperature elevated reforming water by heat exchange with the reformed gas is supplied to the evaporation portion 11 of the reformer 3.

  Next, the operation of the liquid fuel processing apparatus configured as described above will be described.

  When petroleum-based liquid fuel such as kerosene is fed from the liquid fuel tank 16 to the liquid fuel preheater 1 by the liquid fuel pump 7, the liquid fuel is preheated by the heat of the burner exhaust gas, which will be described in detail later, to the desulfurizer 2. be introduced. In this case, in order to maintain the desulfurization performance in the desulfurizer 2, the liquid fuel is pressurized by the liquid fuel pump 7 to such an extent that it does not vaporize even when the temperature becomes high.

  The liquid fuel introduced into the desulfurizer 2 is desulfurized by the desulfurization catalyst 2a. The liquid fuel desulfurized by the desulfurizer 2 is depressurized to normal pressure by the pressure control valve 8, and then mixed with the steam supplied from the evaporation unit 11 of the reformer 3 and introduced into the reformer 3. The hydrogen-rich gas is purified in the process of passing through the reforming catalyst layer 10.

  The reformed gas purified by the reformer 2 is supplied to the fuel cell after the CO concentration contained in the gas is reduced to several ppm by the CO converter 4 and the CO remover 5.

  Here, in the reformer 3, the exhaust gas combusted in the burner section 12 escapes upward while heating the reforming catalyst layer 10 through the catalyst layer side exhaust gas passage from below the fuselage 9 made of a heat insulating material. After making a U-turn and flowing into the case 1a through the combustion exhaust gas inlet of the liquid fuel preheater 1 through the evaporating part side exhaust gas flow path and exchanging heat with the liquid fuel flowing through the liquid fuel supply pipe 1b, the heating jacket of the desulfurizer 2 17 flows in.

  In this case, after the liquid fuel flowing through the liquid fuel preheater 1 supplies the reforming catalyst layer 10 of the reformer 3 with the amount of heat necessary for the reaction and the amount of heat for generating steam at the evaporator 11 to the reforming water side. The amount of heat that is exchanged with the burner combustion exhaust gas and is dissipated from the metal existing on the outer surface of the bottom of the fuselage 9 is recovered to a temperature of about 200 ° C. to 260 ° C. and flows into the desulfurizer 2.

  The burner combustion exhaust gas heat-exchanged with the liquid fuel preheater 1 flows through a heating jacket 17 provided around the desulfurizer 2 in order to reduce heat radiation mainly from the desulfurizer, and then is discharged to the outside. Is done.

Thus, in the first embodiment, the burner portion 12 covered with the heat insulating material 13 at the center of the bottomed cylindrical body 9 made of heat insulating material, the reforming catalyst layer 10 on the outer side, and the outermost periphery of the body 9 A catalyst layer side exhaust gas flow path and an evaporation part side exhaust gas flow path that are composed of an evaporation section 11 for generating water vapor necessary for reforming and that allow combustion exhaust gas to flow from the bottom side of the fuselage 9 below the burner section 12. Is formed, and the heat exchanger exchanges with the burner combustion exhaust gas flowing in through the evaporation part side exhaust gas flow channel by disposing the liquid fuel preheater 1 on the outer surface of the bottom part of the body 9. Since the liquid fuel is preheated and recovered into the desulfurizer 2 by recovering heat radiation from the bottom side of the reformer 3, the exhaust gas burned in the burner unit 12 is transferred from the reformer 3 to the liquid fuel preheater 1. Efficient recovery is possible, desulfurization Temperature of the liquid fuel supplied to the 2 can be optimally maintain. The liquid fuel preheater 1 since they are disposed on the bottom side of the reformer 3 to the low-temperature reactor is not provided, also eliminates the Ru directly affects the amount of heat is applied to the output of the fuel cell from the outside.

(Second Embodiment)
FIG. 3 is a sectional view showing a configuration of a reformer including a liquid fuel preheater in a second embodiment of the liquid fuel processing apparatus according to the present invention. The same parts as those in FIG. The description is omitted, and different parts are described here.

In the second embodiment, as shown in FIG. 3, in the reformer 3 having a multi-cylindrical structure, a liquid fuel inlet and a metal body (not shown) provided on the outer surface of the bottom of the body 9 are brought into close contact with each other. A liquid fuel preheater 21 comprising a circular case 21a having a liquid fuel outlet is disposed, and the bottom surface of the body 9 is covered with a high-performance heat insulating material 18 so as to cover the lower surface and the peripheral side of the liquid fuel preheater 21. It is intended to recover the heat released from. In this case, the combustion exhaust gas flowing in the evaporation unit side exhaust gas passage is introduced directly into the heating jacket 17 of desulfurizer 2 Ri by flue gas outlet.

  In the liquid fuel processing apparatus having such a configuration, the burner portion 12 is covered with the high-temperature heat insulating material 13 in the metal portion provided on the outer surface of the bottom portion of the body 9 made of the heat insulating material of the reformer 3 during operation. Therefore, although it is not directly exposed to a flame, the surface temperature becomes 400-500 degreeC. Further, by covering the lower surface and the peripheral side of the liquid fuel preheater 21 with the high-performance heat insulating material 18, heat radiation to the outside can be greatly reduced.

  Accordingly, by disposing the liquid fuel preheater 21 made of the case 21a on the outer surface of the bottom of the body 9 and circulating the liquid fuel at room temperature in the case 21a, the amount of heat discharged to the outside as in the past is recovered. The temperature of the liquid fuel supplied to the desulfurizer 2 can be kept optimal.

  In addition, since the liquid fuel preheater 21 is composed of the case 21a alone, it is possible to change the heat recovery rate by adjusting the position of the case installed on the outer surface of the bottom of the body 9. The temperature of the liquid fuel flowing into the desulfurizer 2 can be adjusted, and it can be preheated to an optimum temperature without using the burner combustion exhaust gas.

(Third embodiment)
FIG. 4 is a sectional view showing a configuration of a reformer including a liquid fuel preheater in a third embodiment of the liquid fuel processing apparatus according to the present invention. The same parts as those in FIG. The description is omitted, and different parts are described here.

  In the third embodiment, as shown in FIG. 4 (a), in the reformer 3 having a multi-cylindrical structure, the reformer 3 is in close contact with a metal body (not shown) provided on the outer surface of the bottom of the body 9. As shown in (b), the liquid fuel supply pipe 22a is bent in a bellows shape and disposed as the liquid fuel preheater 22, and the lower surface and the peripheral side of the liquid fuel preheater 22 are provided with a high-performance heat insulating material 18. The heat radiation from the bottom of the body 9 is collected so as to cover it.

  In this case, the combustion exhaust gas flowing through the evaporation part side exhaust gas passage is directly introduced into the heating jacket 17 of the desulfurizer 2 from the combustion exhaust gas outlet.

  Therefore, with such a configuration, by disposing the liquid fuel preheater 22 composed of the liquid fuel supply pipe 22a on the outer surface of the bottom portion of the body 9, and circulating the liquid fuel at room temperature through the liquid fuel supply pipe 22a, The amount of heat that has been discharged to the outside as in the past can be efficiently recovered.

  Further, since the liquid fuel preheater 22 can be configured by simply bending the liquid fuel supply pipe 22a into a bellows shape so as to fit in the outer surface of the bottom of the body 9, the liquid fuel can be efficiently used with a simpler and less expensive structure. It becomes possible to preheat well, and the inlet temperature of the desulfurizer 2 can be kept optimal.

(Fourth embodiment)
FIG. 5 is a sectional view showing a configuration of a reformer including a liquid fuel preheater in a fourth embodiment of the liquid fuel processing apparatus according to the present invention. The same parts as those in FIG. The description is omitted, and different parts are described here.

  In the fourth embodiment, as shown in FIG. 5, in the reformer 3 having a multi-cylindrical structure, the metal body (not shown) provided on the outer surface of the bottom of the body 9 is closely attached and bent in a bellows shape. The first liquid fuel supply pipe 23a is disposed, and the second liquid fuel supply pipe 23b bent in a bellows shape with the heat insulating material 19 interposed therebetween is disposed, and the first liquid fuel supply pipe 23a and Both ends of the second liquid fuel supply pipe 23b are made common, and one of them is connected to the liquid fuel inlet pipe, and the other is connected to the liquid fuel outlet pipe to constitute the liquid fuel preheater 23. The heat dissipation from the bottom of the body 9 is collected in the vessel 23.

  In this case, the liquid fuel flowing through the first liquid fuel supply pipe 23a close to the outer surface of the bottom of the body 9 is recovered by preheating the heat from the bottom of the body 9, and the second liquid fuel located below the liquid fuel. The liquid fuel flowing through the supply pipe 23b has a smaller amount of heat recovered from the bottom of the body 9, but can be preheated.

  The control valve 15 is provided on the liquid fuel inlet side of the second liquid fuel supply pipe 23b, and the liquid fuel outlet is connected to the first liquid fuel supply pipe 23a and the second liquid fuel supply pipe 23b in common. A temperature sensor 14 is provided in the pipe, and a control signal is controlled to open and close by the controller 20 so that the temperature of the liquid fuel becomes a preset temperature value by giving a detection signal of the temperature sensor 14 to the controller 20. I have to do it.

  In the liquid fuel processing apparatus having such a configuration, during operation, when the detected value of the temperature sensor 14 provided on the outlet side of the liquid fuel preheater 23 is a set temperature, the liquid fuel inlet of the second liquid fuel supply pipe 23b. The control valve 15 provided on the side opens and the liquid fuel flows through both the first liquid fuel supply pipe 23a and the second liquid fuel supply pipe 23b, but the detected value of the temperature sensor 14 is lower than the set temperature. When it is low, the control valve 15 is closed. Accordingly, the liquid fuel is close to the bottom of the body 9 and flows toward the first liquid fuel supply pipe 23a in a higher temperature atmosphere than the second liquid fuel supply pipe 23b, so that a large amount of heat can be recovered. Thus, the temperature of the liquid fuel can be raised to the set temperature.

  Therefore, even with such a configuration, the amount of heat discharged from the reformer to the outside can be efficiently recovered, and the inlet temperature of the desulfurizer 2 can be kept optimal.

  Although the control valve 15 is provided on the liquid fuel inlet side of the second liquid fuel supply pipe 23b in the above description, it may be provided on the liquid fuel outlet side of the second liquid fuel supply pipe 23b.

(Fifth embodiment)
FIG. 6 is a sectional view showing a configuration of a reformer including a liquid fuel preheater in a fifth embodiment of the liquid fuel processing apparatus according to the present invention. The same parts as those in FIG. The description is omitted, and different parts are described here.

  In the fifth embodiment, as shown in FIG. 6, in the reformer 3 having a multi-cylindrical structure, a hole of an appropriate size is provided through the center of the bottom of the body 9, and an upper opening end is provided in the hole. A tubular body 25 made of a closed heat insulating material is installed with its longitudinal direction facing the space below the burner portion 12, and a pipe 24 a that is processed into a coil shape inside the tubular body from the lower opening end of the tubular body 25. The liquid fuel supply side pipe 24b is connected to the lower end of the coiled pipe 24a, and the liquid fuel discharge side pipe 24c is connected to the upper end of the coiled pipe 24a to insert the liquid fuel preheater 24. It comprises, and the heat insulating material 18 is provided so that the lower surface side and surrounding part may be covered.

  Even with such a configuration, the amount of heat discharged from the reformer to the outside can be efficiently recovered, and the inlet temperature of the desulfurizer 2 can be kept optimal. Further, since the liquid fuel preheater 24 is provided in the space in the fuselage 9 existing below the burner portion 12 of the reformer 3, the space can be used effectively and the equipment can be made compact. it can. Furthermore, by having a liquid fuel preheater 24 in the space inside the fuselage 9 and narrowing the fuel exhaust gas flow path, it becomes possible to increase the flow rate of the combustion exhaust gas and increase the heat transfer rate, and the reforming catalyst layer 10 The amount of heat transfer to can be increased and the reforming rate can be improved.

  In the first to fifth embodiments of the present invention described above, the reformer having a multi-cylindrical structure is described as an example. However, the present invention is also applied to a reformer having a rectangular laminated structure as described above. be able to. In this case, the burner unit and the reformer are sandwiched by the low-temperature CO converter, the evaporation unit, etc. in the direction perpendicular to the stacking surface. The liquid fuel preheater is arranged around the periphery of the burner unit and the burner unit. This can be realized by collecting only the heat radiation of the combustion exhaust gas from the exhaust gas.

  In the first to fifth embodiments of the present invention, a configuration in which the burner portion 12 is installed on the upper portion of the reformer 3 and the liquid fuel preheater is disposed on the outer surface of the bottom portion of the fuselage 9 is described. However, the arrangement is reversed, and the burner unit 12 is installed below the reformer 3 and the liquid fuel preheater is arranged on the outer surface of the upper bottom of the fuselage 9 in the same manner as described above. can do.

Furthermore, in the first to fifth embodiments of the present invention, the configuration in which the evaporation section 11 is provided on the outermost periphery of the body 9 made of a heat insulating material has been described. However, the CO transformer 4 on the outermost periphery of the body 9, A configuration in which a low temperature reactor such as the CO remover 5 is provided can also be implemented in the same manner as described above.

1 is a system configuration diagram showing a first embodiment of a liquid fuel processing apparatus according to the present invention. FIG. Sectional drawing which shows the structure of the reformer containing the liquid fuel preheater of FIG. Sectional drawing which shows the structure of the reformer containing the liquid fuel preheater in 2nd Embodiment of the liquid fuel processing apparatus by this invention. Sectional drawing which shows the structure of the reformer containing the liquid fuel preheater in 3rd Embodiment of the liquid fuel processing apparatus by this invention. Sectional drawing which shows the structure of the reformer containing the liquid fuel preheater in 4th Embodiment of the liquid fuel processing apparatus by this invention. Sectional drawing which shows the structure of the reformer containing the liquid fuel preheater in 5th Embodiment of the liquid fuel processing apparatus by this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Liquid fuel preheater, 1a ... Case, 1b ... Liquid fuel supply pipe, 2 ... Desulfurizer, 2a ... Desulfurization catalyst, 3 ... Reformer, 4 ... CO converter, 5 ... CO remover, 6 ... Heat exchange 7 ... Liquid fuel pump, 8 ... Pressure control valve, 9 ... Body, 10 ... Reforming catalyst layer, 11 ... Evaporating part, 12 ... Burner part, 13 ... Heat insulating material, 14 ... Temperature sensor, 15 ... Control valve, DESCRIPTION OF SYMBOLS 16 ... Liquid fuel tank, 17 ... Heating jacket, 18 ... High performance heat insulating material, 19 ... Cylindrical body, 20 ... Controller, 21 ... Liquid fuel preheater, 21a ... Case, 22 ... Liquid fuel preheater, 22a ... Liquid Fuel supply pipe, 23 ... Liquid fuel preheater, 23a ... First liquid fuel supply pipe, 23b ... Second liquid fuel supply pipe, 24 ... Body fuel preheater, 24a ... Pipe processed into coil shape, 24b ... Liquid Piping on the fuel supply side, 24c ... pipe on the liquid fuel discharge side, 25 ... insulation material Consisting of the cylindrical body

Claims (1)

In a liquid fuel processing apparatus for purifying hydrogen-rich gas by reforming liquid fuel desulfurized by a desulfurizer,
A reformer surrounded by a heat insulating material and provided with a burner portion and a reforming catalyst layer inside thereof;
This was on the outside of the reformer is provided for reducing the heat radiation, and a low temperature reactor containing evaporating portion,
Preheating the liquid fuel supplied from the external unit and a liquid fuel preheater for introducing said desulfurizer,
The liquid fuel preheater is
Wherein arranged on the outer surface of the member facing the combustion space of the burner portion of the reformer, and recovering the heat radiation from the member to the liquid fuel supplied from the outside, the reforming of the reformer By performing heat exchange between the burner combustion exhaust gas after supplying the amount of heat necessary for the reaction in the catalyst layer and the amount of heat for generating steam in the evaporation section, and the liquid fuel supplied from the outside, A liquid fuel processing apparatus of a fuel cell power generation system, characterized in that the liquid fuel supplied from is preheated .

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