Methanol hydrogen production generator integrating evaporation, overheating and reaction
By integrating evaporation, superheating, and reaction into a single methanol-to-hydrogen generator, and employing designs such as top-inlet and bottom-outlet heat transfer oil and gas distributors, the complexities and high energy consumption of traditional methanol-to-hydrogen equipment have been solved, achieving efficient and low-cost hydrogen production.
Patent Information
- Application Number
- CN202423147551.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Traditional methanol-to-hydrogen technology requires multiple pieces of equipment, resulting in high energy consumption, complex equipment, and low efficiency.
Design a methanol-to-hydrogen generator that integrates evaporation, superheating, and reaction. It uses heat transfer oil to maintain high temperature by entering from the top and exiting from the bottom. Combined with a gas distributor and baffles, it improves the uniformity of gas dispersion and heating effect. Automated control is achieved through a temperature control valve, eliminating the need for a superheater.
It simplifies the equipment structure, reduces energy consumption, improves reaction efficiency and product purity, and reduces energy loss.
Smart Images
Figure CN223530403U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a methanol-to-hydrogen generator that integrates evaporation, superheating, and reaction, and belongs to the field of methanol-to-hydrogen technology. Background Technology
[0002] Hydrogen, as a multifunctional chemical substance, has a wide range of applications. In agriculture, hydrogen can promote seed germination, regulate flowering time, improve stress resistance, enhance resistance to pests and diseases, improve the quality of agricultural products, reduce the use of chemical fertilizers, and preserve agricultural products. Hydrogen also has important applications in the chemical, electronics, metallurgical, and oil and fat industries. For example, it is one of the main raw materials for the synthesis of ammonia and methanol; in the oil refining industry, hydrogen is widely used for desulfurization of naphtha, crude diesel, fuel oil, and heavy oil, as well as in petroleum refining, catalytic cracking, and the hydrorefining of unsaturated hydrocarbons to improve oil quality; in the electronics industry, hydrogen is mainly used as a protective gas; in the metallurgical industry, hydrogen is used as a reducing agent and protective gas; in the oil and fat industry, hydrogen is used to produce margarine or hardened oils for the soap industry. Hydrogen is also an important fuel.
[0003] Current hydrogen production technologies mainly include: water electrolysis, methane cracking, petroleum cracking, coal-to-hydrogen, low-pressure methanol production, biomass production, photochemical production, thermochemical production, and solar photocatalytic production. Each technology has its own problems and drawbacks. Among these, methanol-to-hydrogen technology is widely used in practice due to its simple process and low production cost. However, traditional methanol-to-hydrogen technology requires numerous equipment such as water evaporators, superheaters, and converters, resulting in high energy consumption. Utility Model Content
[0004] This invention provides a methanol-to-hydrogen generator that integrates evaporation, superheating, and reaction. It features a simple structure, low cost, high integration, shortened path, and reduced energy consumption.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A methanol-to-hydrogen generator integrating evaporation, superheating and reaction includes a synthesis tower, a catalyst column, an evaporation superheating device, a feed pipe, a discharge pipe and a steam conveying device.
[0007] The synthesis tower includes a top cover, a top sealing plate, a cylinder, a bottom sealing plate, and a bottom cover; the top cover and bottom cover are respectively located at the top and bottom of the cylinder; the top sealing plate is located on the top of the cylinder inside the top cover, and a cavity is left between the top sealing plate and the top cover as a feed chamber; the bottom sealing plate is located on the bottom of the cylinder inside the bottom cover, and a cavity is left between the bottom sealing plate and the bottom cover as a discharge chamber; a sealed first heat transfer oil chamber is formed between the top sealing plate, the cylinder, and the bottom sealing plate; a first heat transfer oil inlet is provided at the top of the cylinder sidewall, and a first heat transfer oil outlet is provided at the bottom (cylinder sidewall); the top cover has a feed inlet, and the bottom cover has a discharge outlet;
[0008] The catalyst column is located inside the cylinder. The top of the catalyst column passes through the top sealing plate and communicates with the feed chamber; the bottom of the catalyst column passes through the bottom sealing plate and communicates with the discharge chamber.
[0009] The evaporation superheater includes an annular cavity and a hydrogen coil. The annular cavity is fitted around the outer periphery of the cylinder. The hydrogen coil is located inside the annular cavity and is coiled around the outer periphery of the cylinder along the height direction. One end of the feed pipe is located inside the annular cavity and communicates with the bottom of the hydrogen coil, while the other end of the feed pipe extends from the bottom of the annular cavity as a hydrogen inlet. One end of the discharge pipe is located inside the annular cavity and communicates with the top of the hydrogen coil, while the other end of the discharge pipe extends from the top of the annular cavity as a hydrogen outlet. The inner periphery of the annular cavity serves as a second heat transfer oil chamber. A second heat transfer oil inlet is located at the top of the side wall of the annular cavity, and a second heat transfer oil outlet is located at the bottom of the side wall of the annular cavity.
[0010] The steam conveying device includes a conveying pipe, a temperature tester, and a control valve. One end of the conveying pipe is connected to the hydrogen outlet, and the other end is connected to the feed inlet on the top cover. The temperature tester and the control valve are both located on the conveying pipe, with the temperature tester located upstream of the control valve.
[0011] The upstream-to-downstream direction of this application is consistent with the direction of material flow.
[0012] Traditional methanol-to-hydrogen production requires water evaporators, superheaters, converters, etc., which involves a lot of equipment and is inefficient.
[0013] The generator of this application integrates evaporation, superheating and reaction. When the temperature is ≥200℃, the control valve on the delivery pipe is opened, and when the temperature is <200℃, the control valve on the delivery pipe is closed, without the need for a separate superheater.
[0014] The temperature tester and control valve on the delivery pipe can be linked and controlled using existing linkage control technology. When the temperature is ≥200℃, the control valve will automatically open, and when the temperature is <200℃, the control valve will automatically close.
[0015] In this application, the heat transfer oil in the first and second heat transfer oil chambers is fed from top to bottom, which can ensure that the upper section is maintained at a higher temperature, thereby ensuring the reaction efficiency.
[0016] Hydrogen is a mixture of methanol and pure water in a mass ratio of (1.40 to 1.76):1. Hydrogen contains 0.150 to 0.500‰ hydrogen peroxide, with a mass concentration of 25-30%.
[0017] In operation, heat transfer oil is introduced into the first and second heat transfer oil chambers to raise the temperature. Once the catalyst column reaches 250–260°C and the temperature in the second heat transfer oil chamber exceeds 200°C, hydrogen is introduced. The hydrogen enters through the hydrogen inlet, passes through the hydrogen coil, and is converted into steam (raw material gas). This steam then flows from the outlet pipe through the conveying pipe into the feed chamber, and then into each catalyst column for pyrolysis. The resulting products flow out from the bottom of the catalyst column into the outlet chamber and finally out from the outlet. The material flowing out of the outlet is condensed and separated to obtain hydrogen and carbon dioxide. When the material temperature in the conveying pipe is ≥200°C, the control valve on the conveying pipe is opened; when it is <200°C, the control valve on the conveying pipe is closed. No additional superheater is required.
[0018] The catalyst column includes a catalyst tube and a methanol cracking catalyst for hydrogen production packed inside the catalyst tube. Gas and other raw materials enter from the top of the catalyst column, and after being catalytically cracked by the catalyst, they flow out from the bottom of the catalyst column.
[0019] This application only relates to improvements to the generator structure, and does not involve improvements to the chemical composition of catalysts, etc. Existing catalysts are used.
[0020] To improve the uniformity of raw material gas dispersion, the methanol-to-hydrogen generator, which integrates evaporation, superheating, and reaction, also includes a gas distributor. The gas distributor is located inside the feed chamber and is connected to the feed inlet on the top cover. In this way, the raw material gas is dispersed by the gas distributor and then enters the feed chamber.
[0021] To improve product purity, the methanol-to-hydrogen generator, which integrates evaporation, superheating, and reaction, also includes a ceramic ring layer. This ceramic ring layer is located at the bottom of the bottom sealing plate, and the bottom of the catalyst column rests on the ceramic ring layer. This facilitates the assembly and disassembly of the catalyst column and also filters and purifies the product, thus improving its purity.
[0022] To improve the heating effect of the heat transfer oil, the cylinder is equipped with two or more baffles arranged along the height direction. One end of the baffle is connected to the inner wall of the cylinder, and the other end is spaced apart from the inner wall. The baffles are arranged alternately on both sides of the cylinder. That is, for example, if the first baffle at the top is connected to the left side of the inner wall of the cylinder and has a gap between it and the right side, then the second baffle is connected to the right side of the inner wall of the cylinder and has a gap between it and the left side, and so on. This can extend the residence time of the heat transfer oil and improve its heating effect.
[0023] The top and bottom covers are connected to the top and bottom of the cylinder via flanges, respectively.
[0024] The aforementioned annular cavity and cylindrical body are either an integral structure or welded together. The inner ring of the annular cavity shares a sidewall with the cylindrical body.
[0025] To provide support for the device and facilitate its use, the methanol-to-hydrogen generator, which integrates evaporation, superheating, and reaction, also includes a support frame located at the bottom of the annular cavity.
[0026] To improve reaction efficiency, there are three or more catalyst columns, which are evenly distributed inside the cylinder. Spacing is left between adjacent catalyst columns and between the catalyst columns and the cylinder to facilitate the heating of the catalyst columns by heat transfer oil and improve heating uniformity. The top of each catalyst column passes through the top sealing plate and is connected to the feed chamber; the bottom of each catalyst column passes through the bottom sealing plate and is connected to the discharge chamber.
[0027] To increase the feed rate, the number of hydrogen coils is three or more sets arranged sequentially from the inside to the outside, with gaps between adjacent hydrogen coils to improve heating uniformity. The bottom of each hydrogen coil is connected to the feed pipe, and the top of each hydrogen coil is connected to the discharge pipe.
[0028] To reduce energy loss, a first insulation layer is provided around the outer perimeter of the aforementioned cylinder; a second insulation layer is provided around the outer perimeter of the conveying pipe.
[0029] Any technologies not mentioned in this utility model are based on existing technologies.
[0030] This utility model relates to a methanol-to-hydrogen generator that integrates evaporation, superheating, and reaction. It features a simple structure, low cost, high integration, shortened path, and reduced energy consumption. The heat transfer oil adopts a top-in, bottom-out configuration, ensuring the upper section maintains a higher temperature to better meet reaction requirements. Furthermore, the inclusion of a gas distributor improves the uniformity of raw material gas dispersion. The ceramic ring layer facilitates the assembly and disassembly of the catalyst column and also filters and purifies the product, improving product purity. The baffle plate enhances the heating effect of the heat transfer oil, saving energy. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of the methanol-to-hydrogen generator that integrates evaporation, superheating, and reaction according to this utility model;
[0032] In the diagram, 1 is the synthesis tower, 11 is the top cover, 12 is the top sealing plate, 13 is the cylinder, 14 is the bottom sealing plate, 15 is the bottom cover, 16 is the first insulation layer, 17 is the baffle plate, 18 is the first heat transfer oil inlet, 19 is the first heat transfer oil outlet, 2 is the catalyst column, 21 is the catalyst, 3 is the evaporation superheater, 31 is the annular cavity, 32 is the hydrogen coil, 33 is the second heat transfer oil inlet, 34 is the second heat transfer oil outlet, 4 is the feed pipe, 5 is the discharge pipe, 6 is the steam conveying device, 61 is the conveying pipe, 62 is the temperature tester, 63 is the control valve, 64 is the second insulation layer, 7 is the gas distributor, 8 is the ceramic ring layer, and 9 is the support. Detailed Implementation
[0033] To better understand this utility model, the following embodiments further illustrate the content of this utility model, but the content of this utility model is not limited to the following embodiments.
[0034] The directional terms used in this application, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” are based on the orientation or positional relationship shown in the accompanying drawings or in the usage state, and are used only for the convenience of describing this application. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this application.
[0035] Example 1
[0036] like Figure 1 As shown, a methanol-to-hydrogen generator integrating evaporation, superheating and reaction is provided, including a synthesis tower, a catalyst column, an evaporation superheating device, a feed pipe, a discharge pipe and a steam conveying device.
[0037] The synthesis tower includes a top cover, a top sealing plate, a cylinder, a bottom sealing plate, and a bottom cover. The top cover and bottom cover are connected to the top and bottom of the cylinder respectively via flanges. The top sealing plate is located on the top of the cylinder inside the top cover, and a cavity is left between the top sealing plate and the top cover as a feed chamber. The bottom sealing plate is located on the bottom of the cylinder inside the bottom cover, and a cavity is left between the bottom sealing plate and the bottom cover as a discharge chamber. A sealed first heat transfer oil chamber is formed between the top sealing plate, the cylinder, and the bottom sealing plate. A first heat transfer oil inlet is provided at the top of the cylinder sidewall, and a first heat transfer oil outlet is provided at the bottom (cylinder sidewall). The heat transfer oil enters the first heat transfer oil chamber from the first heat transfer oil inlet, heats the catalyst column, and then flows out from the first heat transfer oil outlet. The top cover has a feed inlet, and the bottom cover has a discharge outlet.
[0038] The catalyst column is located inside the cylinder. The top of the catalyst column passes through the top sealing plate and communicates with the feed chamber (a seal is set between the catalyst column and the top sealing plate to prevent material leakage); the bottom of the catalyst column passes through the bottom sealing plate and communicates with the discharge chamber (a seal is set between the catalyst column and the bottom sealing plate to prevent material leakage; a stepped hole can be set on the bottom sealing plate to support the catalyst column).
[0039] The evaporation superheating device includes an annular cavity and a hydrogen coil. The annular cavity is fitted around the outer periphery of the cylinder. The hydrogen coil is located inside the annular cavity and is coiled around the outer periphery of the cylinder along the height direction. One end of the feed pipe is located inside the annular cavity and communicates with the bottom of the hydrogen coil, while the other end of the feed pipe extends from the bottom of the annular cavity as a hydrogen inlet. One end of the discharge pipe is located inside the annular cavity and communicates with the top of the hydrogen coil, while the other end of the discharge pipe extends from the top of the annular cavity as a hydrogen outlet. The inner side of the annular cavity serves as a second heat transfer oil chamber. The top of the side wall of the annular cavity has a second heat transfer oil inlet, and the bottom of the side wall of the annular cavity has a second heat transfer oil outlet. The heat transfer oil enters the second heat transfer oil chamber from the second heat transfer oil inlet, heats the hydrogen coil, and then flows out from the second heat transfer oil outlet.
[0040] The steam conveying device includes a conveying pipe, a temperature tester, and a control valve. One end of the conveying pipe is connected to the hydrogen outlet, and the other end is connected to the feed inlet on the top cover. The temperature tester and the control valve are both located on the conveying pipe, with the temperature tester located upstream of the control valve.
[0041] The generator described above integrates evaporation, superheating, and reaction. When the temperature is ≥200℃, the control valve on the delivery pipe is opened; when the temperature is <200℃, the control valve on the delivery pipe is closed. No additional superheater is required.
[0042] In operation, heat transfer oil is introduced into the first and second heat transfer oil chambers to raise the temperature. Once the catalyst columns reach 250–260°C and the temperature in the second heat transfer oil chamber exceeds 200°C, hydrogen is introduced. The hydrogen enters through the hydrogen inlet, passes through the hydrogen coil, flows from the outlet pipe through the conveying pipe, and then enters the feed chamber. It then enters each catalyst column for pyrolysis, and the resulting products flow out from the bottom of the catalyst columns into the outlet chamber, finally exiting from the outlet. The material exiting the outlet undergoes condensation and separation to yield hydrogen and carbon dioxide. When the material temperature in the conveying pipe is ≥200°C, the control valve on the conveying pipe is opened; when it is <200°C, the control valve is closed. No additional superheater is required.
[0043] Example 2
[0044] Based on Example 1, the following improvements were made: In order to improve the uniformity of raw material gas dispersion, the methanol-to-hydrogen generator that integrates evaporation, superheating and reaction also includes a gas distributor, which is located in the feed chamber and is connected to the feed port on the top cover.
[0045] Example 3
[0046] Based on Example 2, the following improvements were made: the methanol-to-hydrogen generator, which integrates evaporation, superheating, and reaction, further includes a ceramic ring layer. The ceramic ring layer is located at the bottom of the bottom sealing plate, and the bottom of the catalyst column rests on the ceramic ring layer. A cavity is left between the ceramic ring layer and the bottom sealing plate as a discharge chamber. This facilitates the disassembly and assembly of the catalyst column and also filters and purifies the product, improving its purity.
[0047] Example 4
[0048] Based on Example 3, the following improvements were made: Four baffles are arranged along the height direction inside the cylinder. One end of each baffle is connected to the inner wall of the cylinder, while the other end is spaced apart from the inner wall. The baffles are arranged alternately on both sides of the cylinder. At the top, the first baffle is connected to the left side of the inner wall of the cylinder, with a gap between it and the right side. The second baffle is connected to the right side of the inner wall of the cylinder, with a gap between it and the left side, and so on. This extends the residence time of the heat transfer oil and improves its heating effect.
[0049] Example 5
[0050] Based on Example 4, the following improvements were made: the annular cavity and the cylindrical body are an integral structure or welded together. The inner ring of the annular cavity shares a sidewall with the cylindrical body. A support is welded to the bottom of the annular cavity.
[0051] Example 6
[0052] Based on Example 5, the following improvements were made: To improve reaction efficiency, the number of catalyst columns is 6 (3 are shown in the figure). The catalyst columns are evenly distributed inside the cylinder, with gaps between adjacent catalyst columns and between the catalyst columns and the cylinder. The top of each catalyst column passes through the top sealing plate and communicates with the feed chamber; the bottom of each catalyst column passes through the bottom sealing plate and communicates with the discharge chamber. To increase the feed rate, three sets of hydrogen coils are arranged sequentially from the inside to the outside, with gaps between adjacent hydrogen coils. The bottom of each hydrogen coil communicates with the feed pipe, and the top of each hydrogen coil communicates with the discharge pipe. To reduce energy loss, a first insulation layer is provided around the cylinder; a second insulation layer is provided around the conveying pipe. The hydrogen is a mixture of methanol and pure water in a mass ratio of 1.75:1, containing 0.2‰ hydrogen peroxide with a mass concentration of 27.5%. The catalyst column consists of a catalyst tube (outer diameter 32 mm, tube wall thickness 7.5 mm, height 3 m) and a methanol cracking hydrogen production catalyst packed inside the catalyst tube. Gas and other raw materials enter from the top of the catalyst column, and after being catalytically cracked by the catalyst, they flow out from the bottom of the catalyst column.
[0053] The methanol-to-hydrogen generators described above, which integrate evaporation, superheating, and reaction, feature a simple structure, low cost, high integration, shortened path, and reduced energy consumption. The heat transfer oil uses a top-in, bottom-out configuration, ensuring the upper section maintains a higher temperature to better meet reaction requirements. Furthermore, the inclusion of gas distributors improves the uniformity of raw material gas dispersion. The ceramic ring layer facilitates the assembly and disassembly of the catalyst column and also filters and purifies the product, improving product purity. The baffle plate enhances the heating effect of the heat transfer oil, saving energy.
Claims
1. A methanol-to-hydrogen generator integrating evaporation, superheating, and reaction, characterized in that: It includes a synthesis tower (1), a catalyst column (2), an evaporation superheater (3), a feed pipe (4), a discharge pipe (5), and a steam conveying device (6); The synthesis tower (1) includes a top cover (11), a top sealing plate (12), a cylinder (13), a bottom sealing plate (14), and a bottom cover (15); the top cover (11) and the bottom cover (15) are respectively located at the top and bottom of the cylinder (13); the top sealing plate (12) is located on the top of the cylinder (13) inside the top cover (11), and a cavity is left between the top sealing plate (12) and the top cover (11) as a feed cavity; the bottom sealing plate (14) is located at the bottom. The bottom of the cylinder (13) inside the cover (15) has a cavity between the bottom cover (14) and the bottom cover (15) as a discharge cavity; a sealed first heat-conducting oil cavity is formed between the top cover (12), the cylinder (13) and the bottom cover (14); the top of the side wall of the cylinder (13) is provided with a first heat-conducting oil inlet (18) and the bottom is provided with a first heat-conducting oil outlet (19); the top cover (11) is provided with a feed port and the bottom cover (15) is provided with a discharge port; The catalyst column (2) is located inside the cylinder (13). The top of the catalyst column (2) passes through the top sealing plate (12) and communicates with the feed chamber; the bottom of the catalyst column (2) passes through the bottom sealing plate (14) and communicates with the discharge chamber. The evaporation superheating device (3) includes an annular cavity (31) and a hydrogen coil (32); the annular cavity (31) is sleeved around the outer periphery of the cylinder (13), the hydrogen coil (32) is located inside the annular cavity (31) and is coiled around the outer periphery of the cylinder (13) along the height direction, one end of the feed pipe (4) is located inside the annular cavity (31) and communicates with the bottom of the hydrogen coil (32), and the other end passes through the bottom of the annular cavity (31) as a hydrogen inlet, and one end of the discharge pipe (5) is located inside the annular cavity (31) and communicates with the top of the hydrogen coil (32), and the other end passes through the top of the annular cavity (31) as a hydrogen outlet; The inner side of the annular cavity (31) serves as the second heat-conducting oil cavity. The top of the side wall of the annular cavity (31) is provided with a second heat-conducting oil inlet (33), and the bottom is provided with a second heat-conducting oil outlet (34). The steam conveying device (6) includes a conveying pipe (61), a temperature tester (62) and a control valve (63). One end of the conveying pipe (61) is connected to the hydrogen outlet and the other end is connected to the feed inlet on the top cover (11). The temperature tester (62) and the control valve (63) are both located on the conveying pipe (61), with the temperature tester (62) located upstream of the control valve (63).
2. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction as described in claim 1, characterized in that: It also includes an air distributor (7), which is located in the feed chamber and is connected to the feed port on the top cover (11).
3. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction as described in claim 1 or 2, characterized in that: It also includes a ceramic ring layer (8), which is located at the bottom of the bottom sealing plate (14), and the bottom of the catalyst column (2) rests on the ceramic ring layer (8).
4. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction as described in claim 1 or 2, characterized in that: The cylinder (13) is provided with two or more baffles (17) arranged along the height direction. One end of the baffle (17) is connected to the inner wall of the cylinder (13), and the other end is separated from the inner wall of the cylinder (13). The baffles (17) are arranged alternately on both sides of the cylinder (13).
5. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction as described in claim 1 or 2, characterized in that: The top cover (11) and the bottom cover (15) are connected to the top and bottom of the cylinder (13) respectively via flanges.
6. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction as described in claim 1 or 2, characterized in that: The annular cavity (31) and the cylindrical body (13) are an integral structure or welded together.
7. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction as described in claim 1 or 2, characterized in that: It also includes a support (9), which is located at the bottom of the annular cavity (31).
8. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction according to claim 1 or 2, characterized in that: There are three or more catalyst columns (2). The catalyst columns (2) are evenly distributed inside the cylinder (13). There are gaps between adjacent catalyst columns (2) and between the catalyst columns (2) and the cylinder (13). The top of each catalyst column (2) passes through the top sealing plate (12) and communicates with the feeding chamber. The bottom of each catalyst column (2) passes through the bottom sealing plate (14) and communicates with the discharge chamber.
9. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction according to claim 1 or 2, characterized in that: The number of hydrogen coils (32) is three or more sets arranged sequentially from the inside to the outside. There is a gap between adjacent hydrogen coils (32). The bottom of each hydrogen coil (32) is connected to the feed pipe (4), and the top of each hydrogen coil (32) is connected to the discharge pipe (5).
10. The methanol-to-hydrogen generator integrating evaporation, superheating, and reaction according to claim 1 or 2, characterized in that: The outer periphery of the cylinder (13) is provided with a first insulation layer (16); the outer periphery of the conveying pipe (61) is provided with a second insulation layer (64).