Dehydrogenation equipment and method for organic liquid hydrogen storage process

Abstract

The invention relates to the technical field of organic liquid hydrogen storage, in particular to dehydrogenation equipment and method in the organic liquid hydrogen storage process, the dehydrogenation equipment comprises a hydrogen storage organic liquid dehydrogenation tank, the middle of the hydrogen storage organic liquid dehydrogenation tank is fixedly connected with a catalyst replacement track, and the inner side of the inner wall of the catalyst replacement track is sleeved with an annular chain; a plurality of dehydrogenation catalyst beds are fixedly connected to the outer side of the annular chain, material ports are formed in the two sides of the top of the outer wall of the catalyst replacement rail correspondingly, and a connecting pipeline and a dehydrogenation catalyst regeneration device are fixedly connected to the upper portions of the material ports. The hydrogen storage organic liquid dehydrogenation device has the advantages that the catalyst replacement track with the dehydrogenation catalyst bed is arranged in the middle of the hydrogen storage organic liquid dehydrogenation tank, so that the dehydrogenation catalyst bed carrying a dehydrogenation catalyst can move on the catalyst integrated track, and the dehydrogenation catalyst in the hydrogen storage organic liquid dehydrogenation tank is replaced; the dehydrogenation equipment can replace the dehydrogenation catalyst while dehydrogenation treatment is carried out.

Description

Technical Field

[0001] The invention relates to the technical field of organic liquid hydrogen storage, in particular to a dehydrogenation device and method in an organic liquid hydrogen storage process. Background Art

[0002] Organic liquid hydrogen storage technology is a potential hydrogen storage and transportation technology. The advantages of this technology are high hydrogen storage density, high safety, low transportation cost, and the ability to store and transport hydrogen at room temperature and pressure, which is conducive to large-scale, high-safety, long-term storage and long-distance transportation of hydrogen. Special equipment is required for hydrogen storage and dehydrogenation before and after organic liquid hydrogen storage.

[0003] A dehydrogenation method and a dehydrogenation device for an organic liquid hydrogen storage material are disclosed in Chinese patent CN202211278807.2. The dehydrogenation method and the dehydrogenation device for an organic liquid hydrogen storage material perform a dehydrogenation reaction by applying ultrasonic assisted heating, which can significantly reduce the heating temperature of the hydrogen storage material. However, the dehydrogenation method and the dehydrogenation device for an organic liquid hydrogen storage material require the addition of a catalyst to the inside during the dehydrogenation process. The catalyst needs to be replaced for regeneration after long-term use. The device is not provided with a special catalyst replacement structure. When replacing the catalyst, the dehydrogenation process needs to be stopped to specifically replace the catalyst, resulting in a decrease in the dehydrogenation efficiency of the equipment. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a dehydrogenation device and method for an organic liquid hydrogen storage process, which effectively solves the deficiencies of the prior art.

[0005] The objective of the present invention is achieved through the following technical scheme: a dehydrogenation device and method for an organic liquid hydrogen storage process, comprising a hydrogen storage organic liquid dehydrogenation tank, a catalyst replacement track fixedly connected to the middle of the hydrogen storage organic liquid dehydrogenation tank, an annular chain sleeved on the inner side of the inner wall of the catalyst replacement track, a plurality of dehydrogenation catalyst beds fixedly connected to the outer side of the annular chain, material ports are respectively provided on both sides of the top of the outer wall of the catalyst replacement track, a connecting pipe is fixedly connected above the material port, and a dehydrogenation catalyst regeneration device is fixedly connected to the middle of the connecting pipe.

[0006] Optionally, the catalyst replacement track is elliptical, the rear half of the catalyst replacement track is located inside the hydrogen storage organic liquid dehydrogenation tank, and the top and bottom of the catalyst replacement track located inside the hydrogen storage organic liquid dehydrogenation tank are grooved, the width of the groove is smaller than the diameter of the dehydrogenation catalyst bed, and the length of the groove is adapted to the diameter of the inner wall of the hydrogen storage organic liquid dehydrogenation tank.

[0007] The above technical solution is adopted: by arranging a catalyst replacement track with a dehydrogenation catalyst bed in the middle of the hydrogen storage organic liquid dehydrogenation tank, the dehydrogenation catalyst bed carrying the dehydrogenation catalyst can move on the catalytic collective track, thereby replacing the dehydrogenation catalyst located in the hydrogen storage organic liquid dehydrogenation tank, so that the dehydrogenation equipment can replace the dehydrogenation catalyst while performing the dehydrogenation treatment, thereby improving the dehydrogenation efficiency of the device.

[0008] Optionally, the dehydrogenation catalyst bed is disc-shaped, and a support net is fixedly connected to the bottom of the dehydrogenation catalyst bed, the caliber of the support net is smaller than the minimum particle diameter of the dehydrogenation catalyst, the height of the dehydrogenation catalyst bed is equal to the inner wall height of the catalyst replacement track, and the diameter of the dehydrogenation catalyst bed is adapted to the inner wall width of the catalyst replacement track.

[0009] The above technical solution is adopted: by setting the dehydrogenation catalyst bed into a disc shape, it is convenient for it to move and change direction inside the catalyst replacement track, and the diameter and height of the dehydrogenation catalyst bed are adapted to the inner wall specifications of the catalyst replacement track, so that it can close the inner wall of the catalyst replacement track during the transmission process, reducing the loss of heat and air pressure inside the hydrogen storage organic liquid dehydrogenation tank from the catalyst replacement track, so that the dehydrogenation catalyst bed can be transported and replaced while the hydrogen storage organic liquid dehydrogenation tank is undergoing dehydrogenation treatment to achieve the replacement of the internal catalyst.

[0010] Optionally, a driving chamber is opened on one side of the inner side of the catalyst replacement track, a sprocket is rotatably connected inside the driving chamber, the sprocket is meshed with an annular chain, a motor is fixedly connected to the bottom of the driving chamber, and the output end of the motor is fixedly connected to the axis of the bottom of the sprocket.

[0011] The above technical solution is adopted: by arranging a driving chamber on the inner side of the catalyst replacement track, the sprocket inside the driving chamber drives the annular chain to rotate, and the annular chain drives the outer dehydrogenation catalyst bed to rotate along the catalyst replacement track, thereby realizing the replacement of the catalyst, so that the dehydrogenation catalyst used for a certain period of time in the hydrogen storage organic liquid dehydrogenation tank can be taken out for regeneration treatment, thereby maintaining the catalytic activity of the dehydrogenation catalyst inside the hydrogen storage organic liquid dehydrogenation tank.

[0012] Optionally, the length of the annular chain matches the length of the inner circle of the catalyst replacement track, and the friction coefficient between the annular chain and the catalyst replacement track is less than 0.5.

[0013] The above technical solution is adopted: by limiting the friction coefficient between the annular chain and the catalyst replacement track, the annular chain can rotate along the inner circle of the track, thereby driving the dehydrogenation catalyst bed to slide inside the catalyst replacement track.

[0014] Optionally, a refrigeration device is fixedly connected to the outer wall of one side of the catalyst replacement track, and a refrigeration port of the refrigeration device faces the outer wall of the catalyst replacement track.

[0015] The above technical solution is adopted: by setting a refrigeration device on the discharge side of the catalyst replacement track, the dehydrogenation catalyst just discharged is cooled down to facilitate its subsequent regeneration and avoid excessive temperature affecting the transmission and regeneration.

[0016] Optionally, an adsorption fan is provided above the material port near the front side, and the shape of the material port is adapted to the shape of the dehydrogenation catalyst bed. When the dehydrogenation catalyst bed is aligned with the material port, the adsorption fan adsorbs the catalyst on the dehydrogenation catalyst bed to the connecting pipe and enters the dehydrogenation catalyst regeneration device.

[0017] Optionally, the dehydrogenation catalyst device regenerates the catalyst and then places it into the dehydrogenation catalyst bed through another feed port. The regeneration time of the dehydrogenation catalyst by the dehydrogenation catalyst regeneration device is the time required for the dehydrogenation catalyst bed to be transferred from one feed port to another.

[0018] The above technical solution is adopted: by arranging a dehydrogenation catalyst regeneration device on the catalyst replacement track, the used catalyst is directly regenerated during the transmission process, so that the catalyst in the dehydrogenation catalyst bed can be recycled within a certain period of time, thereby improving the automation level of the dehydrogenation equipment, so that it can realize automatic replacement and regeneration of the dehydrogenation catalyst while the dehydrogenation process is being carried out.

[0019] A dehydrogenation method for an organic liquid hydrogen storage process, characterized in that it comprises the following steps:

[0020] 1) laying a dehydrogenation catalyst on a dehydrogenation catalyst bed;

[0021] 2) The dehydrogenation catalyst bed is driven by the sprocket and the endless chain to slide on the catalyst replacement track;

[0022] 3) Cooling the dehydrogenation catalyst bed and the dehydrogenation catalyst in the catalyst replacement track by a refrigeration device;

[0023] 4) When the dehydrogenation catalyst bed is aligned with the feed port, the adsorption fan adsorbs the catalyst on the dehydrogenation catalyst bed to the connecting pipe and enters the dehydrogenation catalyst regeneration device;

[0024] 5) A dehydrogenation catalyst device regenerates the catalyst and then places it into a dehydrogenation catalyst bed through another feed port. The regeneration time of the dehydrogenation catalyst by the dehydrogenation catalyst regeneration device is the time required for the dehydrogenation catalyst bed to be transferred from one feed port to another, so that the dehydrogenation catalyst device completes the regeneration of the catalyst, and the device realizes automatic replacement and regeneration during the dehydrogenation process.

[0025] The present invention has the following advantages:

[0026] 1. The dehydrogenation device and method of the organic liquid hydrogen storage process, by arranging a catalyst replacement track with a dehydrogenation catalyst bed in the middle of the hydrogen storage organic liquid dehydrogenation tank, the dehydrogenation catalyst bed carrying the dehydrogenation catalyst can move on the catalyst collective track, so as to replace the dehydrogenation catalyst located in the hydrogen storage organic liquid dehydrogenation tank, so that the dehydrogenation device can replace the dehydrogenation catalyst while performing the dehydrogenation treatment, thereby improving the dehydrogenation efficiency of the device, by arranging the dehydrogenation catalyst bed in a disc shape, so that it is convenient to move and change direction inside the catalyst replacement track, and the diameter and height of the dehydrogenation catalyst bed are adapted to the inner wall specifications of the catalyst replacement track, so that the inner wall of the catalyst replacement track can be closed during the transmission process, reducing the loss of heat and air pressure inside the hydrogen storage organic liquid dehydrogenation tank from the catalyst replacement track, so that the dehydrogenation catalyst bed can be transported and replaced while the hydrogen storage organic liquid dehydrogenation tank is performing the dehydrogenation treatment to realize the replacement of the internal catalyst.

[0027] 2. The dehydrogenation device and method for the organic liquid hydrogen storage process, by arranging a driving chamber on the inner side of the catalyst replacement track, so that the sprocket inside the chamber drives the annular chain to rotate, and then the annular chain drives the outer dehydrogenation catalyst bed to rotate along the catalyst replacement track, thereby realizing the replacement of the catalyst, so that the dehydrogenation catalyst used for a certain period of time in the hydrogen storage organic liquid dehydrogenation tank can be taken out for regeneration treatment, thereby maintaining the catalytic activity of the dehydrogenation catalyst inside the hydrogen storage organic liquid dehydrogenation tank, by limiting the friction coefficient between the annular chain and the catalyst replacement track, so that the annular chain can rotate along the inner circle of the track, thereby driving the dehydrogenation catalyst bed to slide inside the catalyst replacement track, and by arranging a refrigeration device on the discharge side of the catalyst replacement track, the dehydrogenation catalyst just discharged is cooled, so as to facilitate the subsequent regeneration treatment thereof and avoid excessive temperature affecting the transmission and regeneration treatment.

[0028] 3. The dehydrogenation equipment and method of the organic liquid hydrogen storage process, by arranging a dehydrogenation catalyst regeneration device on the catalyst replacement track, directly regenerates the used catalyst during the transmission process, so that the catalyst in the dehydrogenation catalyst bed can be recycled within a certain period of time, thereby improving the degree of automation of the dehydrogenation equipment, so that it can realize automatic replacement and regeneration of the dehydrogenation catalyst during the dehydrogenation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention;

[0030] Figure 2 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0031] Figure 3 It is a schematic diagram of the front cross-section structure of the present invention;

[0032] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle;

[0033] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0034] Figure 6 It is a schematic diagram of the top-sectional structure of the present invention;

[0035] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure at D in the middle;

[0036] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure at E in the middle.

[0037] In the figure: 1-hydrogen storage organic liquid dehydrogenation tank, 2-catalyst replacement track, 3-annular chain, 4-dehydrogenation catalyst bed, 5-feeding port, 6-connecting pipeline, 7-dehydrogenation catalyst regeneration device, 8-slotting, 9-supporting net, 10-driving bin, 11-sprocket, 12-motor, 13-refrigeration device, 14-adsorption fan. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0039] like Figures 1 to 8 As shown, a dehydrogenation device and method for an organic liquid hydrogen storage process, comprising a hydrogen storage organic liquid dehydrogenation tank 1, a catalyst replacement track 2 is fixedly connected to the middle of the hydrogen storage organic liquid dehydrogenation tank 1, an annular chain 3 is sleeved on the inner side of the inner wall of the catalyst replacement track 2, a plurality of dehydrogenation catalyst beds 4 are fixedly connected to the outer side of the annular chain 3, a material port 5 is respectively opened on both sides of the top of the outer wall of the catalyst replacement track 2, a connecting pipe 6 is fixedly connected above the material port 5, and a dehydrogenation catalyst regeneration device 7 is fixedly connected to the middle of the connecting pipe 6.

[0040] Embodiment 1: The catalyst replacement track 2 is elliptical, and the rear half of the catalyst replacement track 2 is located inside the hydrogen storage organic liquid dehydrogenation tank 1. The top and bottom of the catalyst replacement track 2 located inside the hydrogen storage organic liquid dehydrogenation tank 1 are provided with grooves 8, the width of the groove 8 is smaller than the diameter of the dehydrogenation catalyst bed 4, and the length of the groove 8 is adapted to the diameter of the inner wall of the hydrogen storage organic liquid dehydrogenation tank 1. By arranging the catalyst replacement track 2 with the dehydrogenation catalyst bed 4 in the middle of the hydrogen storage organic liquid dehydrogenation tank 1, the dehydrogenation catalyst bed 4 carrying the dehydrogenation catalyst can move on the catalyst collective track 2, thereby replacing the dehydrogenation catalyst located in the hydrogen storage organic liquid dehydrogenation tank 1, so that the dehydrogenation equipment can replace the dehydrogenation catalyst while dehydrogenating, thereby improving the dehydrogenation efficiency of the device.

[0041] Embodiment 2: The dehydrogenation catalyst bed 4 is disc-shaped, and a support net 9 is fixedly connected to the bottom of the dehydrogenation catalyst bed 4. The caliber of the support net 9 is smaller than the minimum particle diameter of the dehydrogenation catalyst. The height of the dehydrogenation catalyst bed 4 is equal to the height of the inner wall of the catalyst replacement track 2, and the diameter of the dehydrogenation catalyst bed 4 is adapted to the inner wall width of the catalyst replacement track 2. By setting the dehydrogenation catalyst bed 4 to a disc shape, it is convenient for it to move and change direction inside the catalyst replacement track 2, and the diameter and height of the dehydrogenation catalyst bed 4 are adapted to the inner wall specifications of the catalyst replacement track 2, so that it can close the inner wall of the catalyst replacement track 2 during the transmission process, reducing the loss of heat and air pressure inside the hydrogen storage organic liquid dehydrogenation tank 1 from the catalyst replacement track 2, so that the dehydrogenation catalyst bed 4 can be transported and replaced while the hydrogen storage organic liquid dehydrogenation tank 1 is undergoing dehydrogenation treatment to achieve replacement of the internal catalyst.

[0042] Embodiment 3: A driving chamber 10 is provided on one side of the inner side of the catalyst replacement track 2, and a sprocket 11 is rotatably connected inside the driving chamber 10, and the sprocket 11 is meshed with the annular chain 3. A motor 12 is fixedly connected to the bottom of the driving chamber 10, and the output end of the motor 12 is fixedly connected to the axis of the bottom of the sprocket 11. By arranging the driving chamber 10 on the inner side of the catalyst replacement track 2, the sprocket 11 inside it drives the annular chain 3 to rotate, and the annular chain 3 drives the outer dehydrogenation catalyst bed 4 to rotate along the catalyst replacement track 2, thereby realizing the replacement of the catalyst, so that the dehydrogenation catalyst that has been used for a certain period of time in the hydrogen storage organic liquid dehydrogenation tank 1 can be taken out for regeneration treatment, thereby maintaining the catalytic activity of the dehydrogenation catalyst inside the hydrogen storage organic liquid dehydrogenation tank 1.

[0043] Embodiment 4: The length of the annular chain 3 is adapted to the length of the inner ring of the catalyst replacement track 2, and the friction coefficient between the annular chain 3 and the catalyst replacement track 2 is less than 0.5. By limiting the friction coefficient between the annular chain 3 and the catalyst replacement track 2, the annular chain 3 can rotate along the inner ring of the track 2, thereby driving the dehydrogenation catalyst bed 4 to slide inside the catalyst replacement track 2.

[0044] Embodiment 5: A refrigeration device 13 is fixedly connected to the outer wall of one side of the catalyst replacement track 2, and the refrigeration port of the refrigeration device 13 faces the outer wall of the catalyst replacement track 2. By arranging the refrigeration device 13 on the discharge side of the catalyst replacement track 2, the dehydrogenation catalyst just discharged is cooled to facilitate the subsequent regeneration treatment and avoid excessive temperature affecting the transmission and regeneration treatment.

[0045] Embodiment 6: An adsorption fan 14 is arranged above the material port 5 near the front side. The shape of the material port 5 is adapted to the shape of the dehydrogenation catalyst bed 4. When the dehydrogenation catalyst bed 4 is aligned with the material port 5, the adsorption fan 14 adsorbs the catalyst on the dehydrogenation catalyst bed 4 to the connecting pipe 6 and enters the dehydrogenation catalyst regeneration device 7.

[0046] Embodiment 7: A dehydrogenation catalyst device 7 is provided to regenerate the catalyst and then place it into the dehydrogenation catalyst bed 4 through another material port 5. The regeneration time of the dehydrogenation catalyst by the dehydrogenation catalyst regeneration device 7 is the time required for the dehydrogenation catalyst bed 4 to be transferred from one material port 5 to another material port 5. By arranging the dehydrogenation catalyst regeneration device 7 on the catalyst replacement track 2, the used catalyst is directly regenerated during the transfer process, so that the catalyst in the dehydrogenation catalyst bed 4 can be recycled within a certain period of time, thereby improving the degree of automation of the dehydrogenation equipment, so that the dehydrogenation catalyst can be automatically replaced and regenerated during the dehydrogenation process.

[0047] A dehydrogenation method for an organic liquid hydrogen storage process, characterized in that it comprises the following steps:

[0048] 1) laying a dehydrogenation catalyst on the dehydrogenation catalyst bed 4;

[0049] 2) driving the sprocket 11 and the endless chain 3 to slide the dehydrogenation catalyst bed 4 on the catalyst replacement track 2;

[0050] 3) The dehydrogenation catalyst bed 4 and the dehydrogenation catalyst in the catalyst replacement track 2 are cooled by the refrigeration device 13;

[0051] 4) When the dehydrogenation catalyst bed 4 is aligned with the material port 5, the adsorption fan 14 adsorbs the catalyst on the dehydrogenation catalyst bed 4 to the connecting pipe 6 and enters the dehydrogenation catalyst regeneration device 7;

[0052] 5) A dehydrogenation catalyst device 7 regenerates the catalyst and then places it into the dehydrogenation catalyst bed 4 through another feed port 5. The regeneration time of the dehydrogenation catalyst by the dehydrogenation catalyst regeneration device 7 is the time required for the dehydrogenation catalyst bed 4 to be transferred from one feed port 5 to another feed port 5, so that the dehydrogenation catalyst device 7 completes the regeneration of the catalyst, and the device realizes automatic replacement and regeneration during the dehydrogenation process.

[0053] The working principle of the present invention is as follows:

[0054] S1, the catalyst replacement track 2 enables the dehydrogenation catalyst bed 4 carrying the dehydrogenation catalyst to move on the catalyst collective track 2, so as to replace the dehydrogenation catalyst located in the hydrogen storage organic liquid dehydrogenation tank 1, so that the dehydrogenation equipment can replace the dehydrogenation catalyst while dehydrogenating, thereby improving the dehydrogenation efficiency of the device;

[0055] S2, the dehydrogenation catalyst regeneration device 7 directly regenerates the used catalyst during the transmission process, so that the catalyst in the dehydrogenation catalyst bed 4 can be recycled within a certain period of time, thereby improving the automation level of the dehydrogenation equipment and enabling the automatic replacement and regeneration of the dehydrogenation catalyst to be achieved during the dehydrogenation process.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] 1. The dehydrogenation device and method of the organic liquid hydrogen storage process, by arranging a catalyst replacement track 2 with a dehydrogenation catalyst bed 4 in the middle of the hydrogen storage organic liquid dehydrogenation tank 1, the dehydrogenation catalyst bed 4 carrying the dehydrogenation catalyst can move on the catalyst collective track 2, so as to replace the dehydrogenation catalyst located in the hydrogen storage organic liquid dehydrogenation tank 1, so that the dehydrogenation device can replace the dehydrogenation catalyst while performing the dehydrogenation treatment, thereby improving the dehydrogenation efficiency of the device, by arranging the dehydrogenation catalyst bed 4 in a disc shape, so that it is convenient to move and change direction inside the catalyst replacement track 2, and the diameter and height of the dehydrogenation catalyst bed 4 are adapted to the inner wall specifications of the catalyst replacement track 2, so that the inner wall of the catalyst replacement track 2 can be closed during the transmission process, reducing the loss of heat and air pressure inside the hydrogen storage organic liquid dehydrogenation tank 1 from the catalyst replacement track 2, so that the hydrogen storage organic liquid dehydrogenation tank 1 can be dehydrogenated while the dehydrogenation catalyst bed 4 can be transported and replaced to achieve the replacement of the internal catalyst.

[0058] 2. The dehydrogenation device and method of the organic liquid hydrogen storage process, by arranging a driving chamber 10 on the inner side of the catalyst replacement track 2, so that the sprocket 11 inside it drives the annular chain 3 to rotate, and then the annular chain 3 drives the outer dehydrogenation catalyst bed 4 to rotate along the catalyst replacement track 2, thereby realizing the replacement of the catalyst, so that the dehydrogenation catalyst used for a certain period of time in the hydrogen storage organic liquid dehydrogenation tank 1 can be taken out for regeneration treatment, thereby maintaining the catalytic activity of the dehydrogenation catalyst inside the hydrogen storage organic liquid dehydrogenation tank 1, by limiting the friction coefficient between the annular chain 3 and the catalyst replacement track 2, so that it can rotate along the inner circle of the track 2, thereby driving the dehydrogenation catalyst bed 4 to slide inside the catalyst replacement track 2, and by arranging a refrigeration device 13 on the discharge side of the catalyst replacement track 2, the dehydrogenation catalyst just discharged is cooled, so as to facilitate the subsequent regeneration treatment thereof, and avoid the influence of excessive temperature on the transmission and regeneration treatment.

[0059] 3. The dehydrogenation equipment and method of the organic liquid hydrogen storage process, by arranging a dehydrogenation catalyst regeneration device 7 on the catalyst replacement track 2, directly regenerates the used catalyst during the transmission process, so that the catalyst in the dehydrogenation catalyst bed 4 can be recycled within a certain period of time, thereby improving the degree of automation of the dehydrogenation equipment, so that it can realize automatic replacement and regeneration of the dehydrogenation catalyst during the dehydrogenation process.

Claims

1. A dehydrogenation device for an organic liquid hydrogen storage process, characterized in that: The invention comprises a hydrogen storage organic liquid dehydrogenation tank (1), wherein a catalyst replacement track (2) is fixedly connected to the middle of the hydrogen storage organic liquid dehydrogenation tank (1), an annular chain (3) is sleeved on the inner side of the inner wall of the catalyst replacement track (2), a plurality of dehydrogenation catalyst beds (4) are fixedly connected to the outer side of the annular chain (3), material ports (5) are respectively provided on both sides of the top of the outer wall of the catalyst replacement track (2), a connecting pipe (6) is fixedly connected above the material port (5), and a dehydrogenation catalyst regeneration device (7) is fixedly connected to the middle of the connecting pipe (6).

2. The dehydrogenation equipment for an organic liquid hydrogen storage process according to claim 1, characterized in that: The catalyst replacement track (2) is elliptical in shape. The rear half of the catalyst replacement track (2) is located inside the hydrogen storage organic liquid dehydrogenation tank (1). The top and bottom of the catalyst replacement track (2) located inside the hydrogen storage organic liquid dehydrogenation tank (1) are both provided with grooves (8). The width of the grooves (8) is smaller than the diameter of the dehydrogenation catalyst bed (4), and the length of the grooves (8) is adapted to the diameter of the inner wall of the hydrogen storage organic liquid dehydrogenation tank (1).

3. The dehydrogenation equipment for an organic liquid hydrogen storage process according to claim 2, characterized in that: The dehydrogenation catalyst bed (4) is disc-shaped, and a support net (9) is fixedly connected to the bottom of the dehydrogenation catalyst bed (4). The caliber of the support net (9) is smaller than the minimum particle diameter of the dehydrogenation catalyst. The height of the dehydrogenation catalyst bed (4) is equal to the height of the inner wall of the catalyst replacement track (2), and the diameter of the dehydrogenation catalyst bed (4) is matched to the width of the inner wall of the catalyst replacement track (2).

4. The dehydrogenation equipment for an organic liquid hydrogen storage process according to claim 3, characterized in that: A drive chamber (10) is provided on one side of the inner side of the catalyst replacement track (2), a sprocket (11) is rotatably connected inside the drive chamber (10), the sprocket (11) is meshed with the ring chain (3), a motor (12) is fixedly connected to the bottom of the drive chamber (10), and an output end of the motor (12) is fixedly connected to the axis of the bottom of the sprocket (11).

5. The dehydrogenation equipment for an organic liquid hydrogen storage process according to claim 4, characterized in that: The length of the annular chain (3) is matched with the length of the inner circle of the catalyst replacement track (2), and the friction coefficient between the annular chain (3) and the catalyst replacement track (2) is less than 0.

5.

6. The dehydrogenation equipment for an organic liquid hydrogen storage process according to claim 5, characterized in that: A refrigeration device (13) is fixedly connected to the outer wall of one side of the catalyst replacement track (2), and a refrigeration port of the refrigeration device (13) faces the outer wall of the catalyst replacement track (2).

7. The dehydrogenation equipment for an organic liquid hydrogen storage process according to claim 6, characterized in that: An adsorption fan (14) is arranged above the material port (5) near the front side. The shape of the material port (5) matches the shape of the dehydrogenation catalyst bed (4). When the dehydrogenation catalyst bed (4) is aligned with the material port (5), the adsorption fan (14) adsorbs the catalyst on the dehydrogenation catalyst bed (4) to the connecting pipe (6) and enters the dehydrogenation catalyst regeneration device (7).

8. The dehydrogenation equipment for an organic liquid hydrogen storage process according to claim 7, characterized in that: The dehydrogenation catalyst device (7) regenerates the catalyst and then places it into the dehydrogenation catalyst bed (4) through another material port (5). The regeneration time of the dehydrogenation catalyst by the dehydrogenation catalyst regeneration device (7) is the time required for the dehydrogenation catalyst bed (4) to be transferred from one material port (5) to another material port (5).

9. The dehydrogenation method of an organic liquid hydrogen storage process according to claim 8, characterized in that The following steps are involved: 1) laying a dehydrogenation catalyst on a dehydrogenation catalyst bed (4); 2) driving the sprocket (11) and the endless chain (3) to slide the dehydrogenation catalyst bed (4) on the catalyst replacement track (2); 3) cooling the dehydrogenation catalyst bed (4) and the dehydrogenation catalyst in the catalyst replacement track (2) by a refrigeration device (13); 4) When the dehydrogenation catalyst bed (4) is aligned with the material port (5), the adsorption fan (14) adsorbs the catalyst on the dehydrogenation catalyst bed (4) to the connecting pipe (6) and enters the dehydrogenation catalyst regeneration device (7); 5) A dehydrogenation catalyst device (7) regenerates the catalyst and then places it into the dehydrogenation catalyst bed (4) through another material port (5). The regeneration time of the dehydrogenation catalyst by the dehydrogenation catalyst regeneration device (7) is the time required for the dehydrogenation catalyst bed (4) to be transferred from one material port (5) to another material port (5), so that the dehydrogenation catalyst device (7) completes the regeneration process of the catalyst, and the device realizes automatic replacement and regeneration process while performing dehydrogenation process.

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