Integrated forming synthesis preparation device for organic liquid hydrogen storage catalyst

Abstract

The utility model relates to an integrated forming synthesis preparation device for an organic liquid hydrogen storage catalyst, and aims to solve the problems of complex process, unstable performance and difficulty in realizing integrated forming in the preparation process of the existing organic liquid hydrogen storage catalyst. The device comprises a granulation system, a synthesis system and a control system. The granulation system is provided with an internal cutter, a granulation mold and an external magnetic cutter, so that the catalyst raw materials are accurately cut and formed. The synthesis system is provided with a gas inlet, a gas outlet and a heating pipe and is used for drying and reducing catalyst particles. The control system integrates the heating control function and the electric motor control function, and one-button operation is achieved. The device provided by the utility model is simple in process and low in cost, can realize integral forming synthesis preparation of the catalyst, improves the preparation efficiency and performance of the catalyst, and promotes the industrialization process of an organic liquid hydrogen storage technology.

Description

Technical Field

[0001] The utility model relates to the technical field of hydrogen storage catalysts, in particular to an integrated molding, synthesis and preparation device for organic liquid hydrogen storage catalysts. Background Art

[0002] With the continuous advancement of energy technology, hydrogen, as a clean and efficient energy carrier, is gaining increasing attention for its storage and utilization. Organic liquid hydrogen storage has become a research hotspot due to its advantages such as high hydrogen storage density, ease of transportation, and good safety. As the core component of this technology, the performance of organic liquid hydrogen storage catalysts directly determines the hydrogen storage efficiency and the economic efficiency of the reaction process.

[0003] Traditional preparation methods for organic liquid hydrogen storage catalysts often involve multiple steps, including individual catalyst synthesis, molding, and assembly. These steps are not only complex but can also easily lead to performance degradation during the preparation process, such as loss of active components and destruction of pore structure. Furthermore, traditional preparation methods struggle to achieve integrated catalyst molding, leading to high contact resistance and low mass transfer efficiency during use, further impacting hydrogen storage performance.

[0004] In recent years, while several novel catalyst preparation technologies have been proposed, such as the sol-gel method and template method, which have improved catalyst preparation efficiency and performance to a certain extent, they still face challenges such as complex preparation processes, high costs, and difficulty in large-scale production. Therefore, developing a simple, low-cost device that can achieve integrated catalyst synthesis and preparation is of great significance for promoting the industrialization of organic liquid hydrogen storage technology.

[0005] The existing preparation process for organic liquid hydrogen storage catalysts suffers from complex processes, unstable performance, and difficulty in achieving integrated molding. These issues severely hinder the further development of organic liquid hydrogen storage technology. Therefore, those skilled in the art urgently need a novel preparation device to address these technical issues and improve the preparation efficiency and performance of organic liquid hydrogen storage catalysts. Utility Model Content

[0006] Based on the above-mentioned problems existing in the prior art, the present invention aims to provide an integrated molding synthesis preparation device for organic liquid hydrogen storage catalysts, so as to solve the problems of complex preparation process, unstable performance and difficulty in achieving integrated molding in the preparation process of existing organic liquid hydrogen storage catalysts.

[0007] In order to achieve the above-mentioned purpose, the technical solution of the present utility model is to design an integrated molding, synthesis and preparation device for organic liquid hydrogen storage catalyst, which is used to mold and reduce organic liquid hydrogen storage and dehydrogenation catalyst. The device includes a granulation system, a synthesis system and a control system. The granulation system is arranged on the upper part of the synthesis system and is directly connected to the synthesis system. The control system is arranged on the lower part of the synthesis system for controlling the operation of the entire system.

[0008] Furthermore, the granulation system includes a cover and a granulation chamber, the cover is arranged above the granulation chamber, and the cover is respectively provided with a metal cover plate, a sealing ring and a lower metal cover plate from top to bottom, and the granulation chamber is respectively provided with an internal cutter, a granulation mold, an external magnetic cutter and a magnet from inside to outside, and the granulation mold can be replaced according to granulation requirements.

[0009] Furthermore, the distance between the internal cutter and the granulation die is 0.5-1 mm.

[0010] Furthermore, the minimum distance between the external magnetic cutter and the granulation die should be slightly larger than the maximum hole diameter of the granulation die.

[0011] Preferably, the distance between the external magnetic cutter and the granulation die is 4.5-5.5 mm.

[0012] Furthermore, the synthesis system includes a synthesis chamber, an air inlet is provided at the top of the synthesis chamber, and an air outlet is provided on the diagonal side so that gas can flow through the synthesis chamber. The bottom and side walls of the synthesis chamber are laid with heating pipes, which can complete the drying and reduction process of the formed particles for synthesis heating.

[0013] Preferably, the heating temperature of the heating tube is 80-600°C.

[0014] Preferably, the interior of the synthesis chamber is made of high-temperature resistant quartz glass, the middle insulation material is polycrystalline alumina ceramic fiber, and the outermost shell material is stainless steel.

[0015] Furthermore, the synthesis system also includes an observation window, which is sealed to the external threaded rod of the synthesis chamber through a sealing gasket, and the sealing gasket is in the external groove of the synthesis chamber.

[0016] Preferably, the observation window is made of high-temperature resistant glass.

[0017] Furthermore, the control system includes a heating control module, an electric motor control module and a control panel. The heating control module is used to control the heating tube. The electric motor control module includes an electric motor and a connecting rod. The connecting rod is located at the center of the internal cutter and is directly connected to the electric motor. When the electric motor rotates, the connecting rod drives the internal cutter in the granulation system to rotate. The rear ends of the heating control module and the electric motor control module are connected to the control panel, and the equipment operation can be controlled through the control panel.

[0018] Preferably, the electric motor has a rotation speed of 20 rpm-100 rpm.

[0019] The advantages and beneficial effects of the present invention are as follows: through an integrated design, the continuous forming, drying and reduction processes of the organic liquid hydrogen storage catalyst are realized, the preparation process is simplified, and the preparation efficiency and performance stability of the catalyst are improved. At the same time, the use of a replaceable granulation mold and a magnetic cutter design enhances the flexibility and applicability of the device, making it easy to adjust the specifications of the catalyst particles according to different needs. In addition, through a precise control system, precise control of parameters such as heating temperature and rotation speed can be achieved to ensure the preparation quality of the catalyst. The overall device has a compact structure and is easy to operate, providing strong support for the industrial production of organic liquid hydrogen storage catalysts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of the utility model.

[0022] Figure 2 It is a cross-sectional view of the present utility model.

[0023] Among them, 1- granulation system, 11- lid, 111- upper metal cover, 112- sealing ring, 113- lower metal cover, 12- granulation chamber, 121- internal cutter, 122- granulation mold, 123- external magnetic cutter, 124- magnet, 2- synthesis system, 21- synthesis chamber, 211- air inlet, 212- air outlet, 213- heating tube, 22- observation window, 221- sealing gasket, 3- control system, 31- heating control module, 32- electric motor control module, 321- electric motor, 322- connecting rod, 33- control panel. DETAILED DESCRIPTION

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. In the present invention, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; while "inside" and "outside" refer to the outline of the device.

[0025] like Figure 1 and Figure 2 As shown, the utility model mainly includes a granulation system 1, a synthesis system 2 and a control system 3.

[0026] The granulation system 1 comprises a cover 11 and a granulation chamber 12 .

[0027] The cover 11 is located above the granulation chamber 12 and is composed of a metal cover plate 111, a sealing ring 112 and a lower metal cover plate 113 from top to bottom to ensure the airtightness of the granulation chamber 12 during operation.

[0028] The granulation chamber 12 includes an internal cutter 121 , a granulation die 122 and an external magnetic cutter 123 .

[0029] An internal cutter 121 is mounted above the pelletizing die 122, maintaining a slight gap of 0.5-1 mm between them, and is used to cut the catalyst feedstock. The pelletizing die 122 can be replaced according to the desired catalyst particle size to accommodate varying production needs. An external magnetic cutter 123, located outside the pelletizing die 122 and maintaining a distance of 4.5-5.5 mm from the die, uses magnetic attraction to assist the internal cutter 121 in cutting, improving molding efficiency.

[0030] The synthesis system 2 includes a synthesis chamber 21 and an observation window 22 .

[0031] The synthesis chamber 21 includes an air inlet 211 , an air outlet 212 and a heating pipe 213 .

[0032] The air inlet 211 is provided at the top of the synthesis chamber 21 for introducing necessary gas or steam. The air outlet 212 is located on the diagonal side to ensure uniform flow of gas in the synthesis chamber and to serve as an outlet for the prepared catalyst particles. The heating tube 213 is laid on the bottom and side walls of the synthesis chamber 21. The heating temperature can be adjusted within the range of 80-600°C for drying and reducing the catalyst particles. In this embodiment, high-temperature resistant quartz glass is used as the internal material of the synthesis chamber 21 and can withstand high-temperature environments. Polycrystalline alumina ceramic fiber is used as the middle insulation layer to improve thermal efficiency. The stainless steel shell protects the internal structure and increases overall durability.

[0033] The observation window 22 is made of high temperature resistant glass and is sealed to the external threaded rod of the synthesis chamber 21 through a sealing gasket 221, allowing the operator to monitor the status inside the synthesis chamber in real time.

[0034] The control system 3 includes a heating control module 31 , an electric motor control module 32 and a control panel 33 .

[0035] The heating control module 31 accurately controls the heating temperature of the heating tube 213 to ensure that the catalyst particles are dried and reduced at an appropriate temperature. The electric motor control module 32 electric motor 321: drives the connecting rod 322 to rotate, and the speed can be adjusted in the range of 20rpm-100rpm. The connecting rod 322 is directly connected to the internal cutter 121, and the rotational power of the electric motor 321 is transmitted to the internal cutter 121 to achieve the cutting and shaping of the catalyst raw material. The control panel 33 serves as the operating interface of the entire system, integrating the control functions of the heating control module 31 and the electric motor control module 32, realizing one-button operation and simplifying the operating process.

[0036] Specific steps: Example 1

[0037] 402 g of NiCl₂·6H₂O and 100 g of Al₂O₃ were mixed thoroughly in a mixer. Water and ammonia (any ratio of water to ammonia) were then added while stirring. Once the slurry reached a semi-solid state, the mixture was transferred to the granulation chamber 12. The granulation mold 122 had a 5 mm diameter aperture. The upper and lower metal covers 111 and 113 were then sealed with a sealing ring 112 and a threaded rod securing the granulation chamber 12. The electric motor 321 was started and set to 100 rpm. The magnets slid at a frequency of 5 minutes per cycle. The first time the magnets 124 slid, the heating control for the synthesis chamber 21 was immediately activated, with the temperature set to 80°C. Simultaneously, nitrogen was introduced into the synthesis chamber 21 through the air inlet 211 and discharged through the air outlet 212. After granulation was completed, the nitrogen flow into the synthesis chamber 21 was stopped, and an Ar / H₂ flow was initiated. The formed precursor was dried in an Ar / H2 atmosphere for 3 hours. The temperature of the synthesis chamber 21 was then raised to 600°C at a rate of 10°C / min. After the temperature was raised, it was kept at 600°C for 4 hours. After the reduction was completed, a Ni / Al2O3 (Ni content 50%) catalyst was obtained, which was named N1. Its particle morphology is as follows Figure 2 The catalyst yield is >95%. The structure of the N1 catalyst remains relatively intact before and after hydrogenation / dehydrogenation. Example 2

[0038] 26 g of Ni(NO₃)₂·6H₂O and 100 g of SiO₂ were mixed thoroughly in a blender. Water and ethanol (in any ratio) were then added while stirring. When the slurry reached a semi-solid state, the mixture was transferred to the granulation chamber 12. The granulation mold 122 had a 2 mm diameter aperture. The upper and lower metal covers 111 and 113 were then sealed with a sealing ring 112 and a threaded rod securing the granulation chamber 12. The electric motor 321 was started at a speed of 60 rpm, and the magnet 124 was slid at a frequency of 8 minutes. The first time the magnet 124 slid, the heating control of the synthesis chamber 21 was immediately activated, and the temperature was set to 100°C. Simultaneously, Ar was introduced into the synthesis chamber through the air inlet 211 and discharged through the air outlet 212. After granulation was completed, the Ar flow into the synthesis chamber 21 was stopped, and an Ar / H₂ flow was resumed. The formed precursor was dried under an Ar / H2 atmosphere for 2 hours. The temperature in synthesis chamber 21 was then raised to 500°C at a rate of 6°C / min and maintained at 500°C for 3 hours. After the reduction was complete, a Ni / Al2O3 catalyst (Ni content 5%) was obtained, designated N2. The catalyst yield was >95%.

[0039] The above is a detailed introduction to an integrated molding synthesis preparation device for an organic liquid hydrogen storage catalyst provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. An integrated molding synthesis preparation device for an organic liquid hydrogen storage catalyst, comprising a granulation system (1), a synthesis system (2) and a control system (3), characterized in that: The granulation system (1) is arranged on the upper part of the synthesis system (2) and is directly connected to the synthesis system (2). The control system (3) is arranged on the lower part of the synthesis system (2). The granulation system (1) includes a cover (11) and a granulation chamber (12). The cover (11) is arranged above the granulation chamber (12). The cover (11) is provided with a metal cover plate (111), a sealing ring (112) and a lower metal cover plate (113) from top to bottom. The granulation chamber (12) is provided with an internal cutter (121), a granulation mold (122), an external magnetic cutter (123) and a magnet (124) from inside to outside. The granulation mold (122) can be replaced according to granulation requirements.

2. The one-piece molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 1, characterized in that: The synthesis system (2) comprises a synthesis chamber (21), an air inlet (211) is provided at the top of the synthesis chamber (21), an air outlet (212) is provided at the diagonal side, and heating pipes (213) are laid at the bottom and side walls of the synthesis chamber (21).

3. The one-piece molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 2, characterized in that: The synthesis system (2) further comprises an observation window (22), wherein the observation window (22) is sealed with the external threaded rod of the synthesis chamber (21) via a sealing gasket (221), wherein the sealing gasket (221) is in an external groove of the synthesis chamber (21).

4. The one-piece molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 3, characterized in that: The control system (3) includes a heating control module (31), an electric motor control module (32) and a control panel (33). The heating control module (31) is used to control the heating tube (213). The electric motor control module (32) includes an electric motor (321) and a connecting rod (322). The connecting rod (322) is located at the center of the internal cutter (121) and is directly connected to the electric motor (321). When the electric motor (321) rotates, the connecting rod (322) drives the internal cutter (121) in the granulation system to rotate. The rear ends of the heating control module (31) and the electric motor control module (32) are connected to the control panel (33).

5. The one-piece molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 4, characterized in that: The distance between the internal cutter (121) and the granulation die (122) is 0.5-1 mm, and the distance between the external magnetic cutter (123) and the granulation die (122) is 4.5-5.5 mm.

6. The one-piece molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 4, characterized in that: The material used inside the synthesis chamber (21) is high-temperature resistant quartz glass, the insulation material in the middle is polycrystalline alumina ceramic fiber, and the outermost shell material is stainless steel.

7. The integrated molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 4, characterized in that: The heating temperature of the heating tube (213) is 80-600°C.

8. The integrated molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 4, characterized in that: The observation window (22) is made of high-temperature resistant glass.

9. The one-piece molding synthesis preparation device for an organic liquid hydrogen storage catalyst according to claim 4, characterized in that: The electric motor (321) has a rotation speed of 20 rpm-100 rpm.

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