RSOC system-methanol reforming and synthesizing integrated system

Abstract

The utility model discloses an RSOC system-methanol reforming and synthesizing integrated system which comprises an RSOC system, a methanol synthesizing system and a methanol reforming system, the RSOC system comprises an RSOC electric pile, and the RSOC electric pile is provided with a fuel electrode inlet, a fuel electrode outlet, an air electrode inlet and an air electrode outlet. An outlet of the methanol reforming system is connected with an inlet of the fuel electrode, and an outlet of the fuel electrode is respectively connected with inlets of the water storage tank and the gas storage tank; the outlets of the water storage tank and the gas storage tank are also connected with the inlet of the fuel electrode, the outlet of the fuel electrode is connected with the inlet of the methanol synthesis system, the outlet of the methanol synthesis system is connected with the liquid storage tank, and the outlet of the liquid storage tank is connected with the inlet of the methanol reforming system. According to the scheme, the RSOC system is integrated with the methanol synthesis system and the methanol reforming system, and methanol is used as a hydrogen storage medium, so that the storage cost is reduced, and a hydrogen utilization and hydrogen production circulating system is formed.

Description

Technical Field

[0001] The utility model relates to the technical field of energy conversion and utilization, and more specifically, to an RSOC system - an integrated system for methanol reforming and synthesis. Background Art

[0002] The supply of renewable energy sources such as wind, solar, and tidal energy is affected by weather and natural conditions. Their energy supply is characterized by significant instability, intermittency, and randomness, making it difficult to maintain a stable power supply and significantly impacting the power grid. Hydrogen, as an efficient, clean, sustainable, and energy-dense secondary energy source, can serve as a bridge between the power grid and other energy sources. Hydrogen production and hydrogen power generation are two key nodes in the current development of hydrogen energy.

[0003] Methanol has a high hydrogen-to-carbon ratio and can be reformed to produce hydrogen at relatively low reaction temperatures (<300°C). It is also liquid at room temperature, making it easy to store and transport, making it an ideal fuel source. Three methods exist for producing hydrogen from methanol: steam reforming, partial oxidation, and autothermal reforming. Steam reforming (hereinafter referred to as methanol reforming) can achieve hydrogen concentrations as high as 75%. Therefore, steam reforming is considered the most promising hydrogen production process.

[0004] Among the many energy storage technologies currently under development, reversible solid oxide cells (RSOCs) can operate in both power generation mode (SOFC) and electrolysis mode (SOEC), enabling bidirectional energy conversion between hydrogen production and power generation. In SOFC mode, hydrogen, natural gas, and other fuels can be used to generate electricity. In SOEC mode, electricity can be used to electrolyze H2O and / or CO2 to produce H2 and / or CO. Therefore, in power generation mode, hydrogen must be continuously fed into the RSOC stack. However, hydrogen has a low density and high storage and transportation costs. Directly storing hydrogen and then feeding it into the RSOC stack would incur high costs.

[0005] However, issues such as how to integrate the RSOC battery system with the methanol reforming hydrogen production system still need to be considered. Utility Model Content

[0006] The utility model provides an RSOC-methanol reforming and synthesis integrated system, which couples and integrates the RSOC battery with the methanol reforming system and the methanol reforming synthesis system, and simultaneously realizes hydrogen production and hydrogen storage through methanol, and can operate in power generation mode during peak power consumption during the day and in electrolysis mode during low power consumption at night.

[0007] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0008] An RSOC-methanol reforming and synthesis integrated system, comprising an RSOC system, a methanol synthesis system and a methanol reforming system;

[0009] The RSOC system has a power generation mode and an electrolysis mode. The RSOC system includes an RSOC stack. The RSOC stack is provided with a fuel electrode inlet, a fuel electrode outlet, an air electrode inlet and an air electrode outlet. The fuel electrode inlet is used to input fuel gas into the RSOC stack, and the fuel electrode outlet is used to lead the reacted fuel gas out of the RSOC stack; the air electrode inlet is used to input air into the RSOC stack, and the air electrode outlet is used to lead the reacted or unreacted air out of the RSOC stack.

[0010] The outlet of the methanol reforming system is connected to the fuel electrode inlet, and the fuel electrode outlet is connected to the inlet of the water storage tank and the gas storage tank respectively;

[0011] The outlets of the water storage tank and the gas storage tank are also connected to the fuel electrode inlet, the fuel electrode outlet is connected to the inlet of the methanol synthesis system, the outlet of the methanol synthesis system is connected to the liquid storage tank, and the outlet of the liquid storage tank is connected to the inlet of the methanol reforming system.

[0012] In this solution, the RSOC system is integrated with the methanol synthesis system and the methanol reforming system. The RSOC system has both an electrolysis mode and a power generation mode, making it suitable for different operating modes. The products of the RSOC system's power generation reaction enter the gas tank and water tank, respectively. The materials in the gas tank and water tank are used as reaction raw materials in the electrolysis reaction. The hydrogen after the electrolysis reaction enters the methanol synthesis system to synthesize methanol for storage. By using methanol as a hydrogen storage medium, storage costs are reduced. The stored methanol then enters the methanol reforming system to produce hydrogen for the power generation reaction. The RSOC system is integrated with the methanol synthesis system and the methanol reforming system to form an internal circulation system, and the materials in the system can be recycled.

[0013] Furthermore, the air electrode inlet is connected to an air supply device, and the air electrode outlet is used to discharge exhaust gas after the reaction. During the power generation reaction, the air electrode provides O2 to the RSOC stack to participate in the power generation reaction. During the electrolysis reaction, the O2 provided by the air electrode to the RSOC stack does not participate in the electrolysis reaction and is used to regulate the temperature within the RSOC stack.

[0014] Furthermore, the RSOC system also includes a waste heat recovery device and an air heat exchanger, wherein the air supply device is connected to the inlet of the air heat exchanger, the outlet of the air heat exchanger is connected to the inlet of the air pole, the outlet of the air pole is connected to another inlet of the air heat exchanger, and the other outlet of the air heat exchanger is connected to the inlet of the waste heat recovery device. The air delivered by the air supply device and the exhaust gas discharged from the air pole outlet are heat-exchanged at the air heat exchanger, which can effectively recover and reuse the heat. The exhaust gas discharged from the air heat exchanger is further recycled and reused by the waste heat recovery device, so that the exhaust gas reaches a normal temperature state before being discharged.

[0015] Furthermore, the RSOC system also includes a gas heat exchanger, wherein the outlet of the methanol reforming system is connected to the inlet of the gas heat exchanger, and the outlet of the gas heat exchanger is connected to the inlet of the fuel electrode; the outlet of the fuel electrode is connected to another inlet of the gas heat exchanger, and the other outlet of the gas heat exchanger is connected to condenser 1. The gas heat exchanger is used to exchange heat between the reformed gas from the methanol reforming system and the fuel electrode tail gas from the fuel electrode outlet, preheating the reformed gas to a predetermined temperature and effectively recovering the heat of the gas discharged after the power generation reaction.

[0016] Furthermore, the fuel electrode outlet is connected to condenser 1, the liquid outlet of condenser 1 being connected to the water storage tank, and the gas outlet of condenser 1 being connected to a compressor, which is connected to the gas storage tank. Condenser 1 further cools the fuel electrode exhaust gas obtained by the gas heat exchanger, thereby separating the water in the fuel electrode exhaust gas for storage. The compressor is used to compress the gas for storage.

[0017] Furthermore, the outlet of the gas storage tank is also connected to the inlet of the water storage tank, so that the liquid water generated after compression by the compressor can be input into the water storage tank for storage.

[0018] Furthermore, a water pump, a water vapor generator, a three-way valve, and a third heat exchanger are sequentially connected between the outlet of the water storage tank and the inlet of the fuel electrode. The outlet of the gas storage tank is also connected to the three-way valve. In electrolysis mode, the RSOC stack pumps water from the water storage tank, forming water vapor in the water vapor generator. The gas output from the gas storage tank and the water vapor are mixed at the three-way valve. The mixed gas undergoes heat exchange at the third heat exchanger before entering the RSOC stack for electrolysis.

[0019] Furthermore, the fuel electrode outlet is connected to the third heat exchanger, which is in turn connected to condenser 2. Both the liquid and gas outlets of condenser 2 are connected to the methanol synthesis system. In electrolysis mode, the gas after the electrolysis reaction carries a significant amount of heat, which is used to preheat the mixed gas from the three-way valve. This heat is recovered by the third heat exchanger, and the gas is then cooled to room temperature by condenser 2 before being fed into the methanol synthesis system.

[0020] In the present application, the structure of the RSOC system may be known to those skilled in the art, including but not limited to a heat preservation component and a control component, and will not be described in detail in the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is the integrated system flow chart of RSOC-methanol reforming and synthesis;

[0022] Figure 2 This is the layout diagram of the integrated system components of RSOC-methanol reforming and synthesis.

[0023] Description of labels:

[0024] 1. Waste heat recovery device; 2. Blower; 3. Air heat exchanger; 4. Condenser 1; 5. Compressor; 6. Gas heat exchanger;

[0025] 7. RSOC stack; 71. Fuel electrode inlet; 72. Fuel electrode outlet; 73. Air electrode inlet; 74. Air electrode outlet;

[0026] 8. Water storage tank; 9. Gas storage tank; 10. Third heat exchanger; 11. Three-way valve; 12. Condenser 2; 13. Steam generator; 14. Water pump; 15. Methanol synthesis system; 16. Liquid storage tank; 17. Methanol reforming system. DETAILED DESCRIPTION

[0027] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0028] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in this specification so as to facilitate understanding and reading by those familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size, without affecting the efficacy and objectives that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed in the present invention.

[0029] like Figure 1 and Figure 2As shown, this embodiment provides an RSOC system - an integrated system of methanol reforming and synthesis, including an RSOC system, a methanol synthesis system 15 and a methanol reforming system 17 , wherein the RSOC system includes an RSOC stack 7 .

[0030] The RSOC system, a reversible solid oxide cell (RSOC), consists of several RSOC stacks, BOP auxiliary equipment (such as heaters, compressors, voltage regulators, inverters, and heat exchangers), and a control system. An RSOC stack is formed by stacking several solid oxide cells in a specific orientation. The structure of a solid oxide cell is well known to those skilled in the art, including, for example, a fuel electrode, an electrolyte layer, and an air electrode.

[0031] The RSOC stack 7 has a power generation mode and an electrolysis mode. The RSOC stack is provided with a fuel electrode inlet 71, a fuel electrode outlet 72, an air electrode inlet 73 and an air electrode outlet 74, wherein the fuel electrode inlet 71 is used to input fuel gas into the RSOC stack, and the fuel electrode outlet 72 is used to lead the reacted fuel gas out of the RSOC stack; the air electrode inlet 73 is used to input air into the RSOC stack, and the air electrode outlet 74 is used to lead the reacted or unreacted air out of the RSOC stack.

[0032] The outlet of the methanol reforming system 17 is connected to the fuel electrode inlet 71, and the fuel electrode outlet 72 is connected to the inlets of the water storage tank 8 and the gas storage tank 9. The outlets of the water storage tank 8 and the gas storage tank 9 are also connected to the fuel electrode inlet 71, and the fuel electrode outlet 72 is connected to the inlet of the methanol synthesis system 15. The outlet of the methanol synthesis system 15 is connected to the liquid storage tank 16, and the outlet of the liquid storage tank 16 is connected to the inlet of the methanol reforming system 17.

[0033] When the RSOC stack 7 operates in power generation mode, the reactions performed are:

[0034] CO+O2→CO2

[0035] H2+O2→H2O

[0036] When the RSOC stack 7 operates in electrolysis mode, the reactions performed are:

[0037] CO2→CO+O2

[0038] H2O→H2+O2

[0039] The integrated system provided herein can adjust its operating mode based on changes in the grid load. When the grid is experiencing peak demand, the RSOC stack 7 operates in power generation mode, replenishing the grid with electricity. At this time, the methanol reforming system 17 reforms methanol to produce hydrogen and carbon monoxide, which are then transported to the RSOC stack 7 for power generation.

[0040] During periods of low grid demand, when the grid is overloaded, the RSOC stack 7 operates in electrolysis mode. Electric energy and a mixed gas (water vapor and carbon dioxide) are fed into the RSOC stack 7 for an electrolysis reaction, which produces hydrogen and carbon monoxide. The hydrogen and carbon monoxide generated by the electrolysis are then fed into the methanol synthesis system 15 to react and produce methanol, which is then used to store excess grid electricity.

[0041] The methanol synthesized in the methanol synthesis system 15 enters the liquid storage tank 16 for storage. The methanol in the liquid storage tank 16 can be removed from the system and sold as a methanol product, or it can provide raw materials for the methanol reforming system 17.

[0042] The RSOC stack 7 is integrated with the methanol synthesis system 15 and the methanol reforming system 17. The hydrogen and CO generated by electrolysis of the RSOC stack 7 are synthesized into methanol through the methanol synthesis system 15, and the methanol is used as a storage medium for hydrogen and electricity storage.

[0043] When the power grid is experiencing peak demand, there is insufficient power load in the grid. RSOC can operate in power generation mode and replenish the grid. Methanol is reformed in methanol reforming system 17 to produce reformed gas, which is then fed into RSOC stack 7. RSOC stack 7, methanol synthesis system 15, and methanol reforming system 17 form a hydrogen production and utilization cycle, solving the problem of hydrogen consumption for RSOC stack 7. Furthermore, the production of methanol through hydrogenation of carbon oxides by electrolysis not only addresses the storage and redistribution of renewable electricity but also addresses the carbon emissions caused by fossil energy consumption.

[0044] In this embodiment, the RSOC system is integrated with the methanol synthesis system 15 and the methanol reforming system 17. The RSOC stack 7 performs power generation during peak daytime electricity demand and electrolysis during low nighttime electricity demand. This achieves an operational strategy that utilizes power generation during peak daytime demand and energy storage during low nighttime demand, providing a reference solution for power system regulation and peak-load shifting. Specifically, the RSOC stack 7 in this embodiment operates in alternating power generation and electrolysis modes. During the daytime power generation mode, methanol is reformed by the methanol reforming system 17. The resulting reformed gas (primarily hydrogen) enters the RSOC stack 7 for power generation. The resulting tail gas is separated and stored in a gas storage tank 9 and a water storage tank 8, respectively. At night, the contents of the gas storage tank 9 and the water storage tank 8 are discharged, mixed, and then fed into the RSOC stack 7 for electrolysis. The resulting gas enters the methanol synthesis system 15 for methanol synthesis. As a further improvement, a liquid storage tank 16 is further included, the inlet of the liquid storage tank 16 being connected to the outlet of the methanol synthesis system 15, and the outlet of the liquid storage tank 16 being connected to the inlet of the methanol reforming system 17. The liquid storage tank 16 is used to store the methanol synthesized by the methanol synthesis system 15. The gas storage tank 9 and the water storage tank 8 store the products after the power generation reaction of the RSOC stack 7, so as to be used as raw materials for the electrolysis reaction of the RSOC stack 7 at night; similarly, the liquid storage tank 16 stores the methanol synthesized by the gas entering the methanol synthesis system 15 after the electrolysis reaction of the RSOC stack 7, so as to be used as raw materials for reforming and producing hydrogen by the methanol reforming system 17 during the power generation reaction, so that the entire RSOC-methanol reforming and synthesis integrated system forms an internal circulation system for hydrogen production and use.

[0045] Recombination Figure 2 As shown, the air electrode is provided with an air electrode inlet 73 and an air electrode outlet 74. The air electrode inlet 73 is connected to the air supply device, and the air electrode outlet 74 is used to discharge the exhaust gas after the reaction. The air electrode inlet 73 is connected to the air supply device to provide O2 to the RSOC stack 7 for participating in the power generation reaction.

[0046] Furthermore, the RSOC system also includes a waste heat recovery device 1 and an air heat exchanger 3, wherein the air heat exchanger 3 is located between the air supply device and the air electrode inlet 73 and between the air electrode outlet 74 and the waste heat recovery device 1. Specifically, the air supply device is connected to the inlet of the air heat exchanger 3, the outlet of the air heat exchanger 3 is connected to the air electrode inlet 73, the air electrode outlet 74 is connected to another inlet of the air heat exchanger 3, and the other outlet of the air heat exchanger 3 is connected to the inlet of the waste heat recovery device 1. The air heat exchanger 3 is used to exchange heat between the air electrode exhaust gas discharged from the air electrode outlet 74 and the air. On the one hand, it can preheat the air entering the RSOC stack, and on the other hand, it can utilize the heat in the air electrode exhaust gas, which can effectively recover and reuse the heat.

[0047] The operating temperature of a reversible solid oxide cell (RSOC) is typically 600-800°C. In power generation mode, the exhaust gas after the reaction is completed reaches approximately 750°C. Air supplied by the air supply device exchanges heat with the exhaust gas discharged from the air electrode outlet 74 at the air heat exchanger 3, effectively recovering the heat. The exhaust gas discharged from the air heat exchanger 3 is further recovered and reused in the waste heat recovery unit 1, bringing the exhaust gas to a normal temperature before discharge. A conventional blower can be used as the specific air supply device.

[0048] Preferably, the fuel electrode outlet 72 is also connected to condenser 4, the liquid outlet of condenser 4 is connected to water storage tank 8, the gas outlet of condenser 4 is connected to compressor 5, and compressor 5 is connected to gas storage tank 9. Furthermore, a gas heat exchanger 6 is included, located between the fuel electrode inlet 71 and the methanol reforming system 17, and between the fuel electrode outlet 72 and condenser 4. Specifically, the outlet of the methanol reforming system 17 is connected to the inlet of the gas heat exchanger 6, and the outlet of the gas heat exchanger 6 is connected to the fuel electrode inlet 71; the fuel electrode outlet 72 is connected to the other inlet of the gas heat exchanger 6, and the other outlet of the gas heat exchanger 6 is connected to condenser 4.

[0049] The reformed gas formed by methanol reforming system 17 primarily consists of H₂. This reformed gas exchanges heat with the gas after the power generation reaction through gas heat exchanger 6, effectively recovering the heat. The fuel electrode tail gas flowing out of fuel electrode outlet 72 after the power generation reaction primarily consists of CO₂, H₂O, unreacted H₂, and a small amount of CO. After condensation in condenser 4, a large amount of H₂O condenses into liquid water, which enters water storage tank 8 for storage. The remaining gas is compressed by compressor 5 and then enters gas storage tank 9 for storage.

[0050] Condenser 1 4 adopts water cooling. The temperature of the exhaust gas at the outlet after the power generation reaction is relatively high. Even after heat exchange through the gas heat exchanger 6, there is still a lot of heat. Condenser 1 4 adopts water cooling to quickly cool the outlet gas to room temperature.

[0051] In addition, the outlet of the gas tank 9 is also connected to the inlet of the water tank 8. After passing through the condenser 4, a small amount of gaseous H2O will remain, which will be compressed by the compressor 5 to form liquid water and enter the gas tank 9. The gas tank 9 is also connected to the inlet of the water tank 8 to transport this water into the water tank 8 for storage.

[0052] As a preferred embodiment, a water pump 14, a steam generator 13, a three-way valve 11, and a third heat exchanger 10 are sequentially connected between the outlet of the water storage tank 8 and the fuel electrode inlet 71. The outlet of the gas storage tank 9 is also connected to the three-way valve 11. The fuel electrode outlet 72 is also connected to the third heat exchanger 10, which is further connected to the second condenser 12. The liquid outlet and gas outlet of the second condenser 12 are both connected to the methanol synthesis system 15.

[0053] Specifically, the outlet of the water storage tank 8 is connected to the water pump 14, and the water pump 14 pumps water into the steam generator 13. The steam generator 13 converts water into water vapor, and the water vapor enters the three-way valve 11; the gas in the gas storage tank 9 enters the three-way valve 11, and the water vapor is mixed with the gas in the gas storage tank 9 in the three-way valve 11, and then passes through the third heat exchanger 10 for heat exchange, and then enters the RSOC stack 7 through the fuel electrode inlet 71, wherein CO2 and H2O undergo electrolysis reaction, and then the electrolyzed gas enters the third heat exchanger 10 through the fuel electrode outlet 72 for heat exchange and then enters the condenser 2 12. After cooling, the liquid water is input into the methanol synthesis system 15, and other cooled gases also enter the methanol synthesis system 15. The synthesized methanol is stored in the liquid storage tank 16.

[0054] The overall operational scheme of the integrated RSOC-methanol reforming and synthesis system in this utility model is as follows: during the day, the fuel electrode of RSOC stack 7 undergoes a power generation reaction, and methanol in liquid storage tank 16 enters methanol reforming system 17. Methanol reforming system 17 reforms methanol and water to produce reformed gas, the main components of which are CO2, H2, and some CO. The H2 and CO in the reformed gas enter RSOC stack 7 for a power generation reaction, producing CO2 and H2O, the fuel electrode tail gas, which is described as Gas 2. The CO2 in the reformed gas that does not participate in the power generation reaction and the remaining CO and H2 in the unreacted gas enter condenser 1 4 with Gas 2. The H2O is liquefied and then stored in water storage tank 8, while the remaining gases enter gas storage tank 9 for storage.

[0055] At night, the RSOC stack 7 still performs electrolysis reaction at the fuel electrode. The water in the water storage tank 8 is converted into gaseous H2O through the water vapor generator 13. The H2O is mixed with the gas in the gas storage tank 9 and enters the RSOC stack 7. The CO2 and H2O therein undergo electrolysis reaction. The exhaust gas after the electrolysis reaction (mainly composed of CO, H2 and O2) enters the methanol synthesis system 15. The methanol synthesis system 15 uses CO2 and hydrogen to synthesize methanol. The synthesized methanol is stored in the liquid storage tank 16.

[0056] The power generation and electrolysis reactions in the RSOC stack 7 alternate. The fuel inlet shares a common fuel electrode inlet 71, and the fuel outlet shares a common fuel electrode outlet 72. During the power generation reaction, the air electrode provides oxygen to the RSOC stack 7, which participates in the power generation reaction. During the electrolysis reaction, the oxygen provided by the air electrode to the RSOC stack 7 does not participate in the electrolysis reaction, but is used to regulate the temperature within the RSOC stack 7.

[0057] The integrated system operates in two phases: daytime and nighttime. During the day, methanol enters the methanol reforming system 17 for reforming. The reformed gas enters the RSOC stack 7 for power generation. The exhaust gas from power generation is separated and enters the gas storage tank 9 and water storage tank 8, respectively. At night, the materials in the gas storage tank 9 and water storage tank 8 are mixed and then enter the RSOC stack 7 for electrolysis. The electrolyzed gas enters the methanol synthesis system 15 for methanol synthesis, and the product enters the methanol-water storage tank 16. The system is integrated with the methanol synthesis system 15 and the methanol reforming system 17 through the RSOC system. The materials in the system can be recycled, reducing operating costs. The entire system also has zero carbon emissions, making it more environmentally friendly. The integrated system can operate continuously throughout the day. The RSOC system has both an electrolysis mode and a power generation mode, adapting to different operating modes required during the day and night.

[0058] The terms "installed," "disposed," "equipped with," and "connected" in this application should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0059] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the inventive purpose of the present invention, designs a structure and embodiment similar to the technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A RSOC system - an integrated system for methanol reforming and synthesis, characterized by: Including RSOC system, methanol synthesis system (15) and methanol reforming system (17); The RSOC system includes an RSOC stack (7), the RSOC stack (7) has a power generation mode and an electrolysis mode, and the RSOC stack is provided with a fuel electrode inlet (71), a fuel electrode outlet (72), an air electrode inlet (73) and an air electrode outlet (74); The outlet of the methanol reforming system (17) is connected to the fuel electrode inlet (71), and the fuel electrode outlet (72) is connected to the inlets of the water storage tank (8) and the gas storage tank (9) respectively; The outlets of the water storage tank (8) and the gas storage tank (9) are also connected to the fuel electrode inlet (71), the fuel electrode outlet (72) is connected to the inlet of the methanol synthesis system (15), the outlet of the methanol synthesis system (15) is connected to the liquid storage tank (16), and the outlet of the liquid storage tank (16) is connected to the inlet of the methanol reforming system (17).

2. The RSOC system - an integrated system for methanol reforming and synthesis according to claim 1, characterized in that: The air electrode inlet (73) is connected to an air supply device, and the air electrode outlet (74) is used to discharge tail gas after the reaction.

3. The RSOC system - an integrated system for methanol reforming and synthesis according to claim 2, characterized in that: The RSOC system further comprises a waste heat recovery device (1) and an air heat exchanger (3), wherein the air supply device is connected to the inlet of the air heat exchanger (3), the outlet of the air heat exchanger (3) is connected to the air pole inlet (73), the air pole outlet (74) is connected to the other inlet of the air heat exchanger (3), and the other outlet of the air heat exchanger (3) is connected to the inlet of the waste heat recovery device (1).

4. The RSOC system - an integrated system for methanol reforming and synthesis according to any one of claims 1 to 3, characterized in that: The fuel electrode outlet (72) is also connected to condenser one (4), the liquid outlet of condenser one (4) is connected to the water storage tank (8), the gas outlet of condenser one (4) is connected to the compressor (5), and the compressor (5) is connected to the gas storage tank (9).

5. The RSOC system - an integrated system for methanol reforming and synthesis according to claim 4, characterized in that: The RSOC system further includes a gas heat exchanger (6), the outlet of the methanol reforming system (17) is connected to the inlet of the gas heat exchanger (6), and the outlet of the gas heat exchanger (6) is connected to the fuel electrode inlet (71); the fuel electrode outlet (72) is connected to the other inlet of the gas heat exchanger (6), and the other outlet of the gas heat exchanger (6) is connected to the condenser (4).

6. The RSOC system - an integrated system for methanol reforming and synthesis according to claim 4, characterized in that: The outlet of the gas storage tank (9) is also connected to the inlet of the water storage tank (8).

7. The RSOC system - an integrated system for methanol reforming and synthesis according to claim 1, characterized in that: A water pump (14), a steam generator (13), a three-way valve (11) and a third heat exchanger (10) are sequentially connected between the outlet of the water storage tank (8) and the fuel electrode inlet (71), and the outlet of the gas storage tank (9) is also connected to the three-way valve (11).

8. The RSOC system - an integrated system for methanol reforming and synthesis according to claim 7, characterized in that: The fuel electrode outlet (72) is also connected to the third heat exchanger (10), and the third heat exchanger (10) is also connected to the second condenser (12). The liquid outlet and the gas outlet of the second condenser (12) are both connected to the methanol synthesis system (15).

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