Liquid organic hydrogen storage material dehydrogenation reactor and dehydrogenation device

Abstract

The present invention discloses a liquid organic hydrogen storage material dehydrogenation reactor, comprising a microreactor upper cover plate, an upper hot flow coil plate, an upper heat exchange plate, a first-level impact dispersion reaction plate, a second-level impact dispersion reaction plate, a partition plate, a first-level impact convergence reaction plate, a second-level impact convergence reaction plate, a lower heat exchange plate, a lower hot flow coil plate and a lower cover plate; further disclosed is a dehydrogenation device formed by connecting a plurality of liquid organic hydrogen storage material dehydrogenation reactors in parallel; the reactors of the present invention are convenient for parallel use and easy to scale up, and can also match the number of different impact splitting channels, accelerated impact convergence channels and reaction units as required to meet different reaction conversion rate requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage and production facilities, and in particular to a liquid organic hydrogen storage material dehydrogenation reactor and a dehydrogenation device based on the dehydrogenation reactor. Background Art

[0002] Hydrogen energy is the medium for converting various energy types, such as electricity, heat, and liquid fuels, and is the only way to achieve coordinated optimization across energy networks in the future. Currently, common hydrogen storage technologies include compressed hydrogen storage, liquid hydrogen storage, physical adsorption hydrogen storage on porous materials, chemical adsorption hydrogen storage on metal hydrides, and chemical adsorption hydrogen storage on chemical hydrides. Organic liquid hydrogen storage is an ideal solution for the safe and efficient storage of hydrogen. In the "Future of Hydrogen" report released by the International Energy Agency, organic liquid hydrogen storage technology is considered the best method for international hydrogen trade and long-distance hydrogen transportation. Liquid organic hydrogen storage materials have a high hydrogen storage density, with a volumetric hydrogen storage density of up to 58g / L and a weight hydrogen storage capacity of up to 5.8wt%. They are highly safe, do not burn in the presence of open flames, are non-corrosive, and are recyclable. At the dock, existing gasoline pipelines, tank trucks, gas stations, and other equipment can be used to quickly complete material replenishment.

[0003] At present, the main problem in the dehydrogenation application of liquid hydrogenated organic hydrogen storage materials is that a large amount of high-quality heat source is required from the outside to release hydrogen, which accounts for more than 20% of the calorific value of hydrogen. The reaction rate is slow, the heat and mass transfer efficiency of the reactor is not high, the reactor volume is large, and it is not easy to control and scale up the conversion rate.

[0004] Patent CN114917841A discloses a horizontal U-tube heat exchange reactor for dehydrogenation of hydrogenated organic hydrogen storage materials. The reactor structure is similar to that of a U-tube heat exchanger. The hot fluid flows through the U-tube layer, the hydrogenated organic hydrogen storage material flows through the shell layer, and the catalyst is filled in the shell layer. The heat transfer efficiency is high, but the device structure is complex and the reaction mass transfer efficiency is low.

[0005] Patent CN110282600A discloses a dehydrogenation device based on hydrogen catalytic combustion heating. A reaction tube is wrapped with a catalytic combustion layer. The reaction tube is bent to enhance the reaction process. Part of the generated hydrogen is recycled for combustion to maintain the energy balance of the system and save energy. However, the reaction mass transfer efficiency of the reactor is not high, the equipment occupies a large area, the corresponding logistics flow is small, and the structure is not conducive to conversion rate control and amplification. Summary of the Invention

[0006] One of the purposes of the present invention is to provide a liquid organic hydrogen storage material dehydrogenation reactor to solve the problems of low heat and mass transfer efficiency, large system volume, difficulty in scale-up and complex structure in the dehydrogenation reaction of hydrogenated organic hydrogen storage materials.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a liquid organic hydrogen storage material dehydrogenation reactor, comprising a microreactor upper cover plate, a lower cover plate, and an upper hot flow coil plate, an upper heat exchange plate, a primary impact dispersion reaction plate, a secondary impact dispersion reaction plate, a partition, a primary impact convergence reaction plate, a secondary impact convergence reaction plate, a lower heat exchange plate and a lower hot flow coil plate arranged in sequence between the upper cover plate and the lower cover plate from top to bottom, the upper cover plate is sequentially provided with a hydrogenated organic liquid feed pipe and a hot flow outlet pipe, and the lower cover plate is correspondingly provided with a hydrogen storage carrier discharge pipe and a hot flow inlet pipe; the upper cover plate, the flow coil plate, the upper heat exchange plate, the primary impact dispersion reaction plate, the secondary impact convergence reaction plate, the lower heat exchange plate and the lower hot flow coil plate are all provided with a central hydrogenated organic liquid feed pipe connected to the hydrogen storage carrier discharge pipe. Hydrogen storage material holes and non-central thermal fluid holes connecting the hot flow outlet pipe and the hot flow inlet pipe; the upper hot flow coil plate and the lower hot flow coil plate have the same structure, and a spiral flow channel is opened on the surface of the plate and surrounds the hydrogenated organic hydrogen storage material hole, and thermal fluid holes are respectively opened at both ends of the spiral flow channel; the surfaces of the first-level impact dispersion reaction plate and the second-level impact convergence reaction plate are both provided with a plurality of direct current channels extending radially outward along the hydrogenated organic hydrogen storage material hole, and the hydrogenated organic hydrogen storage material hole is opened at the end of the direct current channel; the surfaces of the second-level impact dispersion reaction plate and the first-level impact convergence reaction plate are both provided with a plurality of independent intersecting direct current channels, the end points and intersections of the direct current channels are both provided with hydrogenated organic hydrogen storage material holes, and thermal fluid holes are opened in the blank spaces between the intersecting direct current channels; the partition is correspondingly provided with a plurality of hydrogenated organic hydrogen storage material holes and a thermal fluid hole;

[0008] The flow channels, chambers and through holes of the dehydrogenation reaction unit composed of the first and second impact dispersion reaction plates, the first and second impact convergence reaction plates and the partition are coated or filled with dehydrogenation catalyst.

[0009] In the liquid organic hydrogen storage material dehydrogenation reactor, the straight flow paths on the surfaces of the first-stage impact dispersion reaction plate and / or the second-stage impact convergence reaction plate have two paths forming a cross shape or three paths forming a rice grain shape.

[0010] In the liquid organic hydrogen storage material dehydrogenation reactor, the cross-flow channels on the surfaces of the secondary impact dispersion reaction plate and / or the primary impact convergence reaction plate are in the shape of a 4-strand cross or an 8-strand rice seed.

[0011] The straight flow path of the liquid organic hydrogen storage material dehydrogenation reactor is a thin path with a constant inner diameter or a thin path with an inner diameter gradually decreasing from the outside to the inside.

[0012] In the liquid organic hydrogen storage material dehydrogenation reactor, the hydrogenated organic hydrogen storage material holes at the end of the straight flow channel with equal inner diameter and small diameter are perpendicular to the secondary impact dispersion reaction plate, the partition plate and the primary impact convergence reaction plate.

[0013] The liquid organic hydrogen storage material dehydrogenation reactor has an upper heat exchange plate and a lower heat exchange plate with the same structure, and adopts high thermal conductivity materials such as copper and silver to achieve efficient heat transfer.

[0014] A second object of the present invention is to provide a dehydrogenation device composed of a plurality of liquid organic hydrogen storage material dehydrogenation reactors connected in parallel.

[0015] The advantages and positive effects of the present invention are:

[0016] 1. The present invention is based on the principles of splitting and recombination and impinging flow. During the reaction process of the hydrogenated organic hydrogen storage material entering the reactor, the fluid undergoes impact splitting and accelerated impact convergence, which improves the flow disturbance and increases the contact between the molecules and the catalyst and the heat transfer plate, resulting in high mass and heat transfer efficiency.

[0017] 2. The heat exchange plates of the reactor of the present invention are made of high thermal conductivity materials. The high-viscosity heat transfer oil heat flow flows in the spiral heat flow coil. The heat fluid uses a heat transfer oil medium with a certain viscosity. Under the action of centrifugal force, it is easy to form Dean flow in the bend, thereby improving the heat transfer performance.

[0018] 3. The reactor of the present invention is convenient for parallel use and easy to scale up. It can also match the number of different impact splitting channels, accelerated impact converging channels, and reaction units to meet different reaction conversion requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 A top view of the hot flow coil plate of the present invention;

[0021] Figure 3 A top view of the first-level impact dispersion reaction plate of the present invention;

[0022] Figure 4 A top view of the secondary impact dispersion reaction plate of the present invention;

[0023] Figure 5 A top view of the separator of the present invention;

[0024] Figure 6 A top view of the first-level impact convergence reaction plate of the present invention;

[0025] Figure 7 It is a top view of the secondary impact convergence reaction plate of the present invention.

[0026] The figures are marked as follows: 1—hydrogenated organic liquid feed pipe, 2—hot flow outlet pipe, 3—upper cover plate, 3a—hydrogenated organic hydrogen storage material hole, 3b—hot fluid hole, 4—upper hot flow coil plate, 4a—hydrogenated organic hydrogen storage material hole, 4b—spiral flow channel, 4c—hot fluid hole, 4d—hot fluid hole, 5—upper heat exchange plate, 5a—hydrogenated organic hydrogen storage material hole, 5b—hot fluid hole, 6—first-stage impact dispersion reaction plate, 6a—hydrogenated organic hydrogen storage material hole, 6b—straight channel, 6c—hydrogenated organic hydrogen storage material hole, 6d—hot fluid hole, 7—secondary impact dispersion reaction plate, 7a—hydrogenated organic hydrogen storage material hole, 7b—straight channel, 7c—hydrogenated organic hydrogen storage material hole, 7d—hot fluid hole, 8—partition plate, 8a—hydrogenated organic hydrogen storage material hole , 8b—thermal fluid hole, 9—first-stage impact convergence reaction plate, 9a—hydrogenated organic hydrogen storage material hole, 9b—straight channel, 9c—hydrogenated organic hydrogen storage material hole, 9d—thermal fluid hole, 10—secondary impact convergence reaction plate, 10a—hydrogenated organic hydrogen storage material hole, 10b—straight channel, 10c—hydrogenated organic hydrogen storage material hole, 10d—thermal fluid hole, 11—lower heat exchange plate, 11a—hydrogenated organic hydrogen storage material hole, 11b—thermal fluid hole, 12—lower hot flow coil plate, 12a—hydrogenated organic hydrogen storage material hole, 12b—spiral flow channel, 12c—thermal fluid hole, 12d—thermal fluid hole, 13—lower cover plate, 13a—hydrogenated organic hydrogen storage material hole, 13b—thermal fluid hole, 14—hydrogen storage carrier discharge pipe, 15—hot flow inlet pipe. Implementation Method

[0027] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0028] Reference Figure 1 As shown, in order to improve the heat and mass transfer efficiency of liquid-solid and gas-solid reactions, miniaturize the reaction equipment, and facilitate scale-up, the present invention provides a heat exchange reaction integrated reactor.

[0029] The present invention discloses a liquid organic hydrogen storage material dehydrogenation reactor, comprising: a microreactor upper cover plate 3, an upper hot flow coil plate 4, an upper heat exchange plate 5, a first-level impact dispersion reaction plate 6, a second-level impact dispersion reaction plate 7, a partition plate 8, a first-level impact convergence reaction plate 9, a second-level impact convergence reaction plate 10, a lower heat exchange plate 11, a lower hot flow coil plate 12 and a lower cover plate 13.

[0030] The upper cover plate 3 is sequentially provided with a hydrogenated organic liquid feed pipe 1 and a hot flow outlet pipe 2, as well as corresponding hydrogenated organic hydrogen storage material holes 3a and hot fluid holes 3b. The upper cover plate 3 is connected to the hydrogenated organic liquid feed pipe 1 through the hydrogenated organic hydrogen storage material hole 3a, and is connected to the hot flow outlet pipe 2 through the hot fluid hole 3b; the lower cover plate 13 is sequentially provided with a hydrogen storage carrier discharge pipe 14 and a hot flow inlet pipe 15. The lower cover plate 13 is connected to the hydrogen storage carrier discharge pipe 14 through the hydrogenated organic hydrogen storage material hole 13a, and is connected to the hot flow inlet pipe 15 through the hot fluid hole 13b.

[0031] Reference Figure 2 As shown, the upper heat flow coil plate 4 has a central hole 4a for the hydrogenated organic hydrogen storage material. A spiral flow channel 4b is formed on its surface, extending through the plate and surrounding the hole 4a. Thermal fluid holes 4c and 4d are respectively formed at the ends of spiral flow channel 4b. The lower heat flow coil plate 12 has the same structure as the upper heat flow coil plate 4. Similarly, the lower heat flow coil plate 12 has a central hole 12a for the hydrogenated organic hydrogen storage material. A spiral flow channel 12b is formed on its surface, extending through the plate and surrounding the hole 12a. Thermal fluid holes 12c and 12d are respectively formed at the ends of spiral flow channel 12b. The thermal fluid flows along the abcd spiral path. High-viscosity thermal fluids tend to generate Dean flow, achieving efficient heat transfer, and the hydrogenated organic hydrogen storage material passes through the plate.

[0032] Reference Figure 3 As shown, the center of the first-level impact dispersion reaction plate 6 is provided with a hydrogenated organic hydrogen storage material hole 6c, and the surface is provided with a plurality of straight flow channels 6b extending radially outward along the hydrogenated organic hydrogen storage material hole 6c, wherein the straight flow channels 6b can be two to form a cross-shaped impact dispersion chamber, or three to form a rice-shaped impact dispersion chamber, and the straight flow channels 6b can also be four or more, which are used for the hydrogenated organic hydrogen storage material to pass through the plate and disperse and flow, and the straight flow channels 6b are thin diameters with a constant inner diameter, and a hydrogenated organic hydrogen storage material hole 6a is provided at the end of the straight flow channel 6b, and a hot fluid hole 6d is provided between the two straight flow channels 6b, and the hydrogenated organic hydrogen storage material impacts the first-level impact dispersion reaction plate 6 in the chamber and diffuses in a rice shape in 4 or 8 directions.

[0033] Reference Figure 7As shown, the secondary impact convergence reaction plate 10 can have the same structure as the primary impact dispersion reaction plate 6. The secondary impact convergence reaction plate 10 has a hydrogenated organic hydrogen storage material hole 10c in the center, and a plurality of direct current channels 10b extending radially outward along the hydrogenated organic hydrogen storage material hole 10c are provided on the surface, wherein the direct current channels 10b can be two to form a cross-shaped impact dispersion chamber, or three to form a rice-shaped impact dispersion chamber, and the direct current channels 10b can also be four or more, for the hydrogenated organic hydrogen storage material to pass through the plate and disperse and flow, and the direct current channels 10b are The inner diameter of the dispersed flow path gradually decreases from the outside to the inside, so that the hydrogenated organic hydrogen storage material can be gradually accelerated when flowing along the straight channel 10b. A hydrogenated organic hydrogen storage material hole 10a is set at the end of the straight channel 10b, and a hot fluid hole 10d is opened between the two straight channels 10b. The hydrogenated organic hydrogen storage material impacts the first-level impact dispersion reaction plate 6 in the chamber and diffuses in 4 or 8 directions in a cross shape. After the impact and dispersion, the hydrogenated organic hydrogen storage material flows through the dispersed flow path and is pressurized and then impacts the inner wall of the chamber, forming a vortex under the guidance of each flow channel, and the impact of the flow streams causes strong disturbance of the fluid.

[0034] Depending on the number of straight channels 6b and 10b, a cross-shaped or rice-shaped impact dispersion chamber can be formed on the surface of the first-stage impact dispersion reaction plate 6 and the second-stage impact convergence reaction plate 10, as well as a cross-shaped or rice-shaped dispersion flow path for the hydrogenated organic hydrogen storage material to pass through the plate.

[0035] Reference Figure 4 As shown, the surface of the secondary impact dispersion reaction plate 7 is provided with a plurality of intersecting direct current channels 7b. The direct current channels 7b can be two to form a cross-shaped impact dispersion chamber, or three to form a rice-shaped impact dispersion chamber. There can also be four or more direct current channels 7b, which are used for the hydrogenated organic hydrogen storage material to pass through the plate and disperse and flow. A hydrogenated organic hydrogen storage material hole 7c is provided at the intersection of the direct current channels 7b, and the direct current channels 7b are thin diameters with equal inner diameters. A hydrogenated organic hydrogen storage material hole 7a is provided at the end of the direct current channel 7b, and a hot fluid hole 7d is provided in the blank part of the direct current channel 7b. The hydrogenated organic hydrogen storage material impacts the partition 8 in the chamber and diffuses in a cross shape in 4 or 8 directions. After impact and dispersion, the hydrogenated organic hydrogen storage material flows through the dispersed flow thin diameter and is pressurized and then impacts the inner wall of the chamber, forming a vortex under the guidance of each flow channel, and the flow stream collision causes strong disturbance of the fluid.

[0036] Reference Figure 6As shown, the surface of the first-level impact convergence reaction plate 9 is provided with a plurality of cross-direction channels 9b. The direction channels 9b can be two to form a cross-shaped impact dispersion chamber, or three to form a rice-shaped impact dispersion chamber. There can also be four or more direction channels 9b, which are used for the hydrogenated organic hydrogen storage material to pass through the plate and disperse and flow. A hydrogenated organic hydrogen storage material hole 9c is provided at the intersection of the direction channels 9b, and the direction channels 9b are dispersed flow diameters with an inner diameter gradually decreasing from the outside to the inside, so that the hydrogenated organic hydrogen storage material can be gradually accelerated when flowing along the direction channels 9b. A hydrogenated organic hydrogen storage material hole 9a is provided at the end of the direction channel 9b, and a hot fluid hole 9d is provided in the blank part of the direction channel 9b. The hydrogenated organic hydrogen storage material impacts the partition 8 in the chamber and diffuses in a cross shape in 4 or 8 directions. After the impact and dispersion, the hydrogenated organic hydrogen storage material flows through the dispersed flow diameter and is pressurized and then impacts the inner wall of the chamber, forming a vortex under the guidance of each flow channel, and the flow stream collision causes a strong disturbance of the fluid.

[0037] Depending on the number of crossed direct current channels 7b and 9b, multiple cross-shaped or rice-shaped impact dispersion chambers can be formed on the surface of the secondary impact dispersion reaction plate 7 and the primary impact convergence reaction plate 9, as well as cross-shaped or rice-shaped dispersion flow paths of the hydrogenated organic hydrogen storage material passing through the plate. The hydrogenated organic hydrogen storage material flow streams are accelerated and collide with the central dispersion chamber, causing strong disturbance of the fluid.

[0038] Reference Figure 5 As shown, the separator 8 is provided with a plurality of hydrogenated organic hydrogen storage material holes 8a for the hydrogenated organic hydrogen storage material to be stored in the hydrogenated organic hydrogen storage material holes 3a, hydrogenated organic hydrogen storage material holes 4a, hydrogenated organic hydrogen storage material holes 5a, hydrogenated organic hydrogen storage material holes 6a, hydrogenated organic hydrogen storage material holes 6c, hydrogenated organic hydrogen storage material holes 7a, hydrogenated organic hydrogen storage material holes 7c, hydrogenated organic hydrogen storage material holes 9a, hydrogenated organic hydrogen storage material holes 9c, hydrogenated organic hydrogen storage material holes 10a, hydrogenated organic hydrogen storage material holes 10c, hydrogenated organic hydrogen storage material holes 11a, hydrogenated organic hydrogen storage material holes 12a, hydrogenated organic hydrogen storage material holes 12c, hydrogenated organic hydrogen storage material holes 13a, hydrogenated organic hydrogen storage material holes 13c, hydrogenated organic hydrogen storage material holes 14a, hydrogenated organic hydrogen storage material holes 14c, hydrogenated organic hydrogen storage material holes 15a, hydrogenated organic hydrogen storage material holes 15c, hydrogenated organic hydrogen storage material holes 16a, hydrogenated organic hydrogen storage material holes 16c, hydrogenated organic hydrogen storage material holes 17a, hydrogenated organic hydrogen storage material holes 17c, hydrogenated organic hydrogen storage material holes 18a, hydrogenated organic hydrogen storage material holes 18c, hydrogenated organic hydrogen storage material holes 19a, hydrogenated organic hydrogen storage material holes 19c, hydrogenated organic hydrogen storage material holes 20a, hydrogenated organic hydrogen storage material holes 20c, hydrogenated organic hydrogen storage material holes 21a, hydrogenated organic hydrogen storage material holes 21c, hydrogenated organic hydrogen storage material holes 22a, hydrogenated organic hydrogen storage material holes 22c, hydrogenated organic hydrogen storage material holes 23a, hydrogenated organic hydrogen storage material holes Liquid flows through the material hole 12a and the hydrogenated organic hydrogen storage material hole 13a, impacting the convergence chamber and connecting the hydrogenated organic liquid feed pipe 1 and the hydrogen storage carrier discharge pipe 14. A thermal fluid hole 8b is also provided on the partition 8, allowing the heat fluid to flow through the thermal fluid hole 3b, thermal fluid hole 4c, thermal fluid hole 4d, thermal fluid hole 5b, thermal fluid hole 6d, thermal fluid hole 7d, thermal fluid hole 9d, thermal fluid hole 10d, thermal fluid hole 11b, thermal fluid hole 12c, thermal fluid hole 12d, and thermal fluid hole 13b, impacting the convergence chamber and connecting the heat flow inlet pipe 15 and the heat flow outlet pipe 2. The hydrogenated organic hydrogen storage material holes cooperate with the thermal fluid holes to allow the hydrogenated organic hydrogen storage material to enter, the hydrogen storage carrier to flow out, and the heat flow to and from the reactor.

[0039] The flow channels, chambers, and through-holes of the dehydrogenation reaction unit composed of the first-stage impact dispersion reaction plate 6, the second-stage impact dispersion reaction plate 7, the first-stage impact convergence reaction plate 9, the second-stage impact convergence reaction plate 10, and the partition 8 are coated or filled with a dehydrogenation catalyst. A carrier such as zirconium oxide or aluminum oxide is mixed with deionized water, ball-milled, and then mixed with palladium nitrate in a proportional manner. The mixture is then coated on the flow channels, chambers, and through-holes. The first-stage impact dispersion reaction plate 6, the second-stage impact dispersion reaction plate 7, the partition 8, the first-stage impact convergence reaction plate 9, the second-stage impact convergence reaction plate 10, and other plates are calcined at 650°C for 6 hours. The above process greatly improves contact with the catalyst in the flow channels and chambers, improves mass transfer efficiency, and thus improves reaction efficiency. At the same time, the strongly disturbed fluid also improves heat exchange capacity.

[0040] All plates, except the upper heat exchange plate 5 and the lower heat exchange plate 11, are made of 316L stainless steel. The upper and lower heat exchange plates 5 and 11 are made of copper, each 10 mm thick. Full welds are used between the plates to ensure the reactor's compressive strength. The upper and lower heat exchange plates 5 and 11, respectively, are provided with hydrogenated organic hydrogen storage material holes 5a and 11a for the flow of hydrogenated organic hydrogen storage material, and thermal fluid holes 5b and 11b for the flow of heating fluid. Both the hydrogenated organic liquid hydrogen storage material and the thermal fluid pass through the plates. Highly thermally conductive materials such as silver can also be used for the upper and lower heat exchange plates 5 and 11 to ensure efficient heat transfer.

[0041] The hydrogenated organic hydrogen storage material holes 6a and 7a at the ends of the straight flow channels 6b and 7b with equal inner diameter and small diameter are perpendicular to the secondary impact dispersion reaction plate 7, the partition plate 8 and the primary impact convergence reaction plate 9. In this way, the flow direction of the hydrogenated organic hydrogen storage material in the impact dispersion chamber in the dehydrogenation reactor is perpendicular to the secondary impact dispersion reaction plate 7, and the impact plates diffuse in different directions. After impact dispersion, the hydrogenated organic hydrogen storage material flows through the small diameter pressurization and impacts the inner wall of the chamber, and forms vortices under the guidance of the hydrogenated organic hydrogen storage material holes 6c, the hydrogenated organic hydrogen storage material holes 7a, the hydrogenated organic hydrogen storage material holes 7c, the hot fluid holes 8b and the hydrogenated organic hydrogen storage material holes 9c, causing fluid disturbance.

[0042] The pipeline size of this patent application is Φ8×1mm, the flow rate of liquid organic hydrogen storage material and heat flow into the pipe is 1~3m / s, the size of each through hole is Φ6mm, the size of each equal diameter and small diameter is 2mm, and the size of the variable diameter and small diameter is reduced from 2mm to 500μm.

[0043] The present invention also discloses a dehydrogenation device composed of multiple liquid organic hydrogen storage material dehydrogenation reactors connected in parallel, wherein there are multiple reaction units to facilitate adjustment of the reaction conversion rate, and the n reaction units are respectively connected through the hydrogenated organic hydrogen storage material holes and the thermal fluid holes.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A liquid organic hydrogen storage material dehydrogenation reactor, characterized in that: The heat exchanger comprises an upper cover plate (3), a lower cover plate (13), and an upper heat flow coil plate (4), an upper heat exchange plate (5), a first-stage impact dispersion reaction plate (6), a second-stage impact dispersion reaction plate (7), a partition plate (8), a first-stage impact convergence reaction plate (9), a second-stage impact convergence reaction plate (10), a lower heat exchange plate (11), and a lower heat flow coil plate (12) arranged sequentially between the upper cover plate (3) and the lower cover plate (13) from top to bottom. The upper cover plate (3) is provided with a hydrogenated organic liquid feed pipe (1) and a hot flow outlet pipe (2) in sequence, and the lower cover plate (13) is provided with a hydrogen storage carrier discharge pipe (14) and a hot flow inlet pipe (15) in correspondence; The upper cover plate (3), the upper hot flow coil plate (4), the upper heat exchange plate (5), the first-stage impact dispersion reaction plate (6), the second-stage impact convergence reaction plate (10), the lower heat exchange plate (11) and the lower hot flow coil plate (12) are all provided with a hydrogenated organic hydrogen storage material hole connecting the hydrogenated organic liquid feed pipe (1) and the hydrogen storage carrier discharge pipe (14) and a hot fluid hole connecting the hot flow outlet pipe (2) and the hot flow inlet pipe (15); The upper hot flow coil plate (4) and the lower hot flow coil plate (12) are both provided with spiral flow channels surrounding the holes of the hydrogenated organic hydrogen storage material, and hot fluid holes are respectively provided at both ends of the spiral flow channels; The surfaces of the first-stage impact dispersion reaction plate (6) and the second-stage impact convergence reaction plate (10) are both provided with a plurality of direct current channels extending outward along the pore diameter of the hydrogenated organic hydrogen storage material, and the hydrogenated organic hydrogen storage material pores are provided at the ends of the direct current channels; The surfaces of the secondary impact dispersion reaction plate (7) and the primary impact convergence reaction plate (9) are both provided with a plurality of mutually independent intersecting direct current channels, the endpoints and intersections of the direct current channels are provided with hydrogenated organic hydrogen storage material holes, and thermal fluid holes are provided between the intersecting direct current channels; The separator (8) is provided with holes for hydrogenated organic hydrogen storage materials and holes for hot fluids; A dehydrogenation catalyst is contained in the dehydrogenation reaction unit composed of the first-stage impact dispersion reaction plate (6), the second-stage impact dispersion reaction plate (7), the first-stage impact convergence reaction plate (9), the second-stage impact convergence reaction plate (10), and the partition plate (8).

2. A liquid organic hydrogen storage material dehydrogenation reactor according to claim 1, characterized in that: The first-stage impact dispersion reaction plate (6) and / or the second-stage impact convergence reaction plate (10) have two straight flow paths on their surfaces forming a cross or three straight flow paths forming a cross shape.

3. A liquid organic hydrogen storage material dehydrogenation reactor according to claim 1, characterized in that: The cross flow channels on the surfaces of the secondary impact dispersion reaction plate (7) and / or the primary impact convergence reaction plate (9) are in a cross shape or a cross shape.

4. A liquid organic hydrogen storage material dehydrogenation reactor according to claim 1, 2 or 3, characterized in that: The straight flow channel is a thin channel with a constant inner diameter or a thin channel with an inner diameter gradually decreasing from the outside to the inside.

5. A liquid organic hydrogen storage material dehydrogenation reactor according to claim 4, characterized in that: The holes of the hydrogenated organic hydrogen storage material located at the end of the straight flow channel with equal inner diameter and small diameter are perpendicular to the secondary impact dispersion reaction plate (7), the partition plate (8) and the primary impact convergence reaction plate (9).

6. A liquid organic hydrogen storage material dehydrogenation reactor according to claim 5, characterized in that: The upper heat exchange plate (5) and the lower heat exchange plate (11) are made of copper or silver.

7. A dehydrogenation device, characterized in that: It is composed of multiple dehydrogenation reactors as claimed in claim 1 connected in parallel.

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