Plate-type dehydrogenation reactor

Abstract

The application discloses a plate type dehydrogenation reactor and belongs to the technical field of organic matter hydrogen storage and reaction devices. The plate type dehydrogenation reactor comprises at least one dehydrogenation reaction unit, the dehydrogenation reaction unit comprises a heat conduction plate, a first end plate, a second end plate and a fastener, the first end plate and the second end plate are attached to the two sides of the heat conduction plate and are detachably connected with the heat conduction plate through the fastener, a first reaction cavity is formed between the first end plate and the heat conduction plate, a second reaction cavity is formed between the second end plate and the heat conduction plate, a carrier basket is installed in the first reaction cavity and the second reaction cavity, and a carrier covered with a catalyst is contained in the carrier basket. The plate type structure is adopted, the structure arrangement is compact, a higher hydrogen production efficiency can be achieved under a smaller space volume, the plate type dehydrogenation reactor has the detachable characteristic, catalyst replacement is very convenient, and the service life of the reactor is prolonged.

Description

Technical Field

[0001] This application relates to the technical field of organic hydrogen storage and release reaction devices, and more specifically, to a plate dehydrogenation reactor. Background Technology

[0002] Organic liquid hydrogen storage has gained significant attention due to its advantages such as good safety, stability, convenient transportation, and low cost. It utilizes unsaturated liquid organic matter to store hydrogen in the hydrogenation products through a reversible chemical reaction with hydrogen, achieving both storage and release of hydrogen. Under the promotion of a catalyst, unsaturated organic matter reacts with hydrogen under certain conditions to convert into corresponding saturated hydrides, which are then released through a dehydrogenation reaction, restoring the organic matter to its unsaturated state. In this process, besides the catalyst, the reactor is also extremely important.

[0003] Currently used microreactors have low hydrogen production efficiency, and the catalyst is usually coated on the surface of the reaction chamber. Once the catalyst fails, it cannot be replaced, which affects the service life of the reactor. Utility Model Content

[0004] This application aims to provide a plate-type dehydrogenation reactor, which addresses the problems of low hydrogen production efficiency and short service life in existing dehydrogenation reactors.

[0005] A plate-type dehydrogenation reactor includes at least one dehydrogenation reaction unit, and multiple dehydrogenation reaction units are connected together; the dehydrogenation reaction unit includes a heat-conducting plate, a first end plate, a second end plate, and fasteners;

[0006] The first end plate and the second end plate are attached to both sides of the heat-conducting plate and are detachably connected to the heat-conducting plate by the fasteners;

[0007] A first reaction chamber is formed between the first end plate and the heat-conducting plate, and a second reaction chamber is formed between the second end plate and the heat-conducting plate. A carrier basket is installed in both the first reaction chamber and the second reaction chamber, and a carrier covered with a catalyst is placed in the carrier basket.

[0008] Optionally, a heat-conducting oil channel is formed inside the heat-conducting plate, the inlet end of the heat-conducting oil channel is connected to a heat-conducting oil pump, and the shape of the heat-conducting oil channel is set as serpentine.

[0009] Optionally, the inlet end of the heat-conducting oil channel is located at the bottom end of the heat-conducting plate, and the outlet end of the heat-conducting oil channel is located at the top end of the heat-conducting plate.

[0010] Optionally, the inlet end of the first reaction chamber is located at the top end of the first end plate, and the outlet end of the first reaction chamber is located at the bottom end of the first end plate; the inlet end of the second reaction chamber is located at the top end of the second end plate, and the outlet end of the second reaction chamber is located at the bottom end of the second end plate.

[0011] Optionally, the heat-conducting plate includes a first flow channel plate and a second flow channel plate disposed opposite to each other; a first flow channel groove is provided on the side of the first flow channel plate facing the second flow channel plate, and a second flow channel groove is provided on the side of the second flow channel plate facing the first flow channel plate, the first flow channel groove and the second flow channel groove are structurally symmetrical; the first flow channel plate and the second flow channel plate are connected integrally so that the first flow channel groove and the second flow channel groove are connected and communicate with each other to form the heat-conducting oil flow channel.

[0012] Optionally, the first flow channel plate is welded to the second flow channel plate.

[0013] Optionally, the first end plate is attached to the first flow channel plate, the first flow channel plate is provided with a first mounting groove on the side facing the first end plate, and the first end plate is provided with a first mating groove on the side facing the first flow channel plate. The first mounting groove and the first mating groove are connected and communicate with each other to form the first reaction chamber.

[0014] The second end plate is attached to the second flow channel plate. The second flow channel plate has a second mounting groove on the side facing the second end plate and a second mating groove on the side facing the second flow channel plate. The second mounting groove and the second mating groove are connected and communicate with each other to form the second reaction chamber.

[0015] Optionally, the edge of the first mounting groove is provided with a first sealing groove, and a first sealing ring is embedded in the first sealing groove. The first mounting groove and the first mating groove are sealed together by the first sealing ring. The edge of the second mounting groove is provided with a second sealing groove, and a second sealing ring is embedded in the second sealing groove. The second mounting groove and the second mating groove are sealed together by the second sealing ring.

[0016] Optionally, both the first flow channel plate and the second flow channel plate are provided with temperature measuring holes, and temperature measuring elements are installed in the temperature measuring holes. The temperature measuring elements are used to measure the temperature of the heat transfer oil flow channel.

[0017] Optionally, a connector assembly is provided on the first end plate or the second end plate, the connector assembly including a first inlet connector, a first outlet connector, a second inlet connector and a second outlet connector;

[0018] The inlet end of the first reaction chamber is connected to the inlet end of the second reaction chamber. The first inlet connector is located at the same position as the inlet end of the first reaction chamber or the inlet end of the second reaction chamber and is connected to each other. The first inlet connector is connected to the reactant material pump. The outlet end of the first reaction chamber is connected to the outlet end of the second reaction chamber. The first outlet connector is located at the same position as the outlet end of the first reaction chamber or the outlet end of the second reaction chamber and is connected to each other. The first outlet connector is connected to the first liquid guide tube.

[0019] The second inlet connector corresponds to and is connected to the inlet end of the heat transfer oil channel, and is connected to the heat transfer oil pump; the second outlet connector corresponds to and is connected to the outlet end of the heat transfer oil channel, and is connected to the second liquid guide pipe.

[0020] Beneficial effects:

[0021] The plate-type dehydrogenation reactor described in this application includes at least one dehydrogenation reaction unit, with multiple dehydrogenation reaction units connected as a whole. Each dehydrogenation reaction unit includes a heat-conducting plate, a first end plate, a second end plate, and fasteners. The first and second end plates are fitted together on both sides of the heat-conducting plate and detachably connected to it via fasteners. A first reaction chamber is formed between the first end plate and the heat-conducting plate, and a second reaction chamber is formed between the second end plate and the heat-conducting plate. A carrier basket is installed in both the first and second reaction chambers, containing a carrier coated with a catalyst. The plate-type dehydrogenation reactor provided in this application includes two reaction chambers in each dehydrogenation reaction unit, arranged on both sides of the heat-conducting plate. This allows for full utilization of the heat from the heat-conducting plate, resulting in a compact structure and high hydrogen production efficiency within a small space. The plate structure is detachable, making internal catalyst replacement very convenient and extending the reactor's service life. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of a plate dehydrogenation reactor proposed in one embodiment of this application;

[0024] Figure 2 This is an exploded view of a plate dehydrogenation reactor according to an embodiment of this application;

[0025] Figure 3This is a schematic diagram of the structure of one side of the heat-guiding oil channel on the first flow channel plate surface in a plate dehydrogenation reactor according to an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the structure of the first flow channel plate facing the first reaction chamber in a plate dehydrogenation reactor according to an embodiment of this application;

[0027] Figure 5 This is a schematic diagram showing the correspondence between the connector assembly and the mounting holes on the first end plate in a plate dehydrogenation reactor according to an embodiment of this application (the dashed lines in the diagram represent the correspondence).

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. First end plate; 2. Second end plate; 21. Second mating groove; 3. Heat-conducting plate; 31. First flow channel plate; 311. First flow channel groove; 312. First mounting groove; 313. First sealing groove; 32. Second flow channel plate; 321. Second flow channel groove; 33. Temperature measuring hole; 4. Fastener; 41. Bolt; 42. Nut; 5. Carrier basket; 61. First sealing ring; 62. Second sealing ring; 7. Connector assembly; 71. First inlet connector; 72. First outlet connector; 73. Second inlet connector; 74. Second outlet connector; 81. First through hole; 82. Second through hole; 83. Third through hole; 84. Fourth through hole; 85. First intermediate hole; 86. Second intermediate hole; 87. Third intermediate hole; 88. Fourth intermediate hole. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Among related technologies, organic liquid hydrogen storage has attracted great attention due to its advantages such as good safety, stability, convenient transportation and low cost.

[0032] Organic liquid hydrogen storage technology consists of two processes: hydrogen storage and hydrogen release. In the storage process, unsaturated liquid organic matter (hydrogen-poor organic matter) reacts with hydrogen in a storage reactor under catalysis to produce corresponding saturated hydrides (hydrogen-rich organic matter), which are used for hydrogen storage and transportation. In the dehydrogenation process, the stored organic matter undergoes a dehydrogenation reaction in a dehydrogenation reactor under high temperature and catalytic conditions, releasing hydrogen. The organic matter returns to an unsaturated state. After gas-liquid separation, the hydrogen is transported to fuel cells and other hydrogen-consuming applications. The dehydrogenated unsaturated organic matter is recovered after heat exchange and recycled. In this process, besides the catalyst, the reactor is also extremely important.

[0033] Currently, commonly used dehydrogenation reactors include tubular fixed-bed reactors and microreactors. Tubular fixed-bed reactors have poor heat transfer and uneven temperature distribution from the tube wall to the reactor center, affecting reaction efficiency. Microreactors have excessively low hydrogen production rates, and the catalyst is usually coated on the surface of the reaction chamber, making it impossible to replace after catalyst deterioration, thus affecting the reactor's service life.

[0034] In view of this, embodiments of this application propose a plate-type dehydrogenation reactor.

[0035] See Figure 1 and Figure 2 A plate-type dehydrogenation reactor includes at least one dehydrogenation reaction unit, and multiple dehydrogenation reaction units are connected together; the dehydrogenation reaction unit includes a heat-conducting plate 3, a first end plate 1, a second end plate 2, and fasteners 4;

[0036] The first end plate 1 and the second end plate 2 are attached to both sides of the heat-conducting plate 3 and are detachably connected to the heat-conducting plate 3 by the fastener 4;

[0037] A first reaction chamber is formed between the first end plate 1 and the heat-conducting plate 3, and a second reaction chamber is formed between the second end plate 2 and the heat-conducting plate 3. A carrier basket 5 is installed in both the first reaction chamber and the second reaction chamber, and a carrier covered with a catalyst is placed in the carrier basket 5.

[0038] Specifically, Figure 1 The diagram shows the structure of a plate dehydrogenation reactor with one dehydrogenation reaction unit. The heat-conducting plate 3, the first end plate 1, and the second end plate 2 are all vertical plates, i.e., they are set perpendicular to the operating table surface. The three are arranged along the thickness direction of the first end plate 1, with the heat-conducting plate 3 in the middle and the first end plate 1 and the second end plate 2 on both sides of the heat-conducting plate 3, respectively. The three are tightly connected as one unit by fasteners 4.

[0039] A first reaction chamber is formed between the first end plate 1 and the heat-conducting plate 3, and a second reaction chamber is formed between the second end plate 2 and the heat-conducting plate 3. Both the first and second reaction chambers serve as the sites for the dehydrogenation reaction. A carrier basket 5 is detachably installed in each of the two reaction chambers. Figure 2 As shown, the carrier basket 5 is a hollow mesh frame structure used to hold the carrier coated with the catalyst for use in the dehydrogenation reaction.

[0040] The inlet ends of the first reaction chamber and the second reaction chamber are connected to reactant material pumps, which can deliver reaction raw materials, namely hydrogen-rich organic compounds, into the first and second reaction chambers.

[0041] The heat-conducting plate 3 has a heat-conducting oil channel inside. The inlet end of the heat-conducting oil channel is connected to a heat-conducting oil pump, which can deliver high-temperature heat-conducting oil into the heat-conducting oil channel. When the high-temperature heat-conducting oil flows through the heat-conducting oil channel, heat can be transferred through the heat-conducting plate 3 to the first reaction chamber and the second reaction chamber on both sides, thereby providing high-temperature conditions for the dehydrogenation reaction.

[0042] For a plate-type dehydrogenation reactor with multiple dehydrogenation reaction units, these units can be connected in series, i.e., arranged sequentially and connected as a single unit along the thickness direction of the first end plate 1. Alternatively, they can be connected in parallel, i.e., arranged side-by-side and connected as a single unit along the width or height direction of the first end plate 1. When the number of dehydrogenation reaction units is small, a series connection is preferred for a more compact overall structure; when the number of dehydrogenation reaction units is large, a combination of series and parallel connections can be used. Multiple dehydrogenation reaction units can perform dehydrogenation reactions simultaneously.

[0043] With the above configuration, the plate dehydrogenation reactor provided in this embodiment has two reaction chambers in the dehydrogenation reaction unit, which are arranged on both sides of the heat-conducting plate 3. This allows for full utilization of the heat from the heat transfer oil, resulting in a compact structure and small volume. In practical applications, multiple dehydrogenation reaction units can be configured according to production needs and connected in series or parallel to carry out dehydrogenation reactions simultaneously. Compared with conventional reactors, it has higher hydrogen production efficiency in the same space volume. The plate structure allows for the detachment of the heat-conducting plate 3, the first end plate 1, and the second end plate 2. The carrier basket 5 used to hold the catalyst carrier is also detachable, allowing for easy replacement of the catalyst after it becomes ineffective. The carrier basket 5 can be reused, thus improving the overall service life of the reactor.

[0044] Optionally, the shape of the heat transfer oil channel is set to serpentine.

[0045] Preferably, in this embodiment, the shape of the heat-conducting oil channel can be set to S-shape or serpentine shape. Compared with conventional straight channels, it has a larger heat-conducting area. Furthermore, the curved path helps to increase fluid turbulence, increase the efficiency of heat transfer, and also helps to extend the residence time of the fluid in the heat-conducting plate 3, so that heat can be transferred more fully and the uniformity of temperature distribution can be improved.

[0046] Optionally, the inlet end of the heat-conducting oil channel is located at the bottom end of the heat-conducting plate 3, and the outlet end of the heat-conducting oil channel is located at the top end of the heat-conducting plate 3.

[0047] Specifically, in this embodiment, the inlet end of the heat transfer oil channel is located at the bottom end of the heat transfer plate 3, and the outlet end of the heat transfer oil channel is located at the top end of the heat transfer plate 3. Thus, the heat transfer oil enters the heat transfer oil channel from the bottom end of the heat transfer plate 3, flows along the shape of the channel, and finally flows out from the top end of the heat transfer plate 3. The heat transfer oil flows in a bottom-in, top-out manner. Compared to a top-in, bottom-out flow method, this avoids the problem of excessively high flow velocity caused by gravity, helps to extend the residence time of the fluid in the heat transfer oil channel, ensures that the inside of the channel is completely filled with fluid, and makes heat transfer more sufficient and uniform.

[0048] Optionally, the inlet end of the first reaction chamber is located at the top end of the first end plate 1, and the outlet end of the first reaction chamber is located at the bottom end of the first end plate 1; the inlet end of the second reaction chamber is located at the top end of the second end plate 2, and the outlet end of the second reaction chamber is located at the bottom end of the second end plate 2.

[0049] Specifically, the reactants are hydrogen-rich organic compounds heated to a gaseous state. Due to their low density, they float at the top of the reaction chamber after entering it. The inlet of the first reaction chamber is located at the top of the first end plate 1, and the outlet of the first reaction chamber is located at the bottom of the first end plate 1. The inlet of the second reaction chamber is located at the top of the second end plate 2, and the outlet of the second reaction chamber is located at the bottom of the second end plate 2. Thus, the flow pattern of the reactants in the first and second reaction chambers is top-in and bottom-out. Compared with the bottom-in and top-out method, this can prolong the residence time of the gaseous reactants in the first and second reaction chambers, thereby ensuring a complete reaction and improving reaction efficiency.

[0050] Optionally, the heat-conducting plate 3 includes a first flow channel plate 31 and a second flow channel plate 32 disposed opposite to each other; a first flow channel groove 311 is provided on the side of the first flow channel plate 31 facing the second flow channel plate 32, and a second flow channel groove 321 is provided on the side of the second flow channel plate 32 facing the first flow channel plate 31, the first flow channel groove 311 and the second flow channel groove 321 are structurally symmetrical; the first flow channel plate 31 and the second flow channel plate 32 are connected as one unit, so that the first flow channel groove 311 and the second flow channel groove 321 are connected and communicate with each other to form the heat-conducting oil flow channel.

[0051] To facilitate the processing of the heat transfer oil flow channels, in this embodiment, the heat transfer plate 3 includes a first flow channel plate 31 and a second flow channel plate 32 disposed opposite to each other. See [link to documentation]. Figure 2 and Figure 3 A first flow channel groove 311 is formed on the side of the first flow channel plate 31 facing the second flow channel plate 32, and a second flow channel groove 321 is formed on the side of the second flow channel plate 32 facing the first flow channel plate 31. The first flow channel groove 311 and the second flow channel groove 321 each serve as part of a heat transfer oil channel. When the first flow channel plate 31 and the second flow channel plate 32 are fitted together with their flow channel grooves facing each other, the first flow channel groove 311 and the second flow channel groove 321 can be assembled to form a complete heat transfer oil channel. To ensure the integrity of the heat transfer oil channel, the shapes and structures of the first flow channel groove 311 and the second flow channel groove 321 are symmetrical to ensure complete alignment during assembly.

[0052] Optionally, the first flow channel plate 31 is welded to the second flow channel plate 32.

[0053] Specifically, in this embodiment, the first flow channel plate 31 and the second flow channel plate 32 can be connected by welding.

[0054] Optionally, the first end plate 1 is attached to the first flow channel plate 31, and the first flow channel plate 31 is provided with a first mounting groove 312 on the side facing the first end plate 1. The first end plate 1 is provided with a first mating groove on the side facing the first flow channel plate 31. The first mounting groove 312 is connected to the first mating groove and forms the first reaction chamber.

[0055] The second end plate 2 is attached to the second flow channel plate 32. The second flow channel plate 32 is provided with a second mounting groove on the side facing the second end plate 2. The second end plate 2 is provided with a second mating groove 21 on the side facing the second flow channel plate 32. The second mounting groove and the second mating groove 21 are connected and communicate with each other to form the second reaction chamber.

[0056] See Figure 2The first end plate 1 is located on the side close to the first flow channel plate 31. The first flow channel plate 31 has a first mounting groove 312 on the side facing the first end plate 1 and a first mating groove on the side facing the first flow channel plate 31. Specifically, the first mounting groove 312 and the first mating groove can be quadrilateral grooves with symmetrical shapes and structures. Each of them serves as part of the first reaction chamber. When the first end plate 1 is attached to the first flow channel plate 31, the first mounting groove 312 and the first mating groove can be combined to form a complete first reaction chamber.

[0057] The second end plate 2 is located on the side close to the second flow channel plate 32. The second flow channel plate 32 has a second mounting groove on the side facing the second end plate 2, and a second mating groove 21 is provided on the side facing the second flow channel plate 32. The second mounting groove and the second mating groove 21 can also be quadrilateral grooves with symmetrical shapes and structures. Each of them serves as part of the second reaction chamber. When the second end plate 2 and the second flow channel plate 32 are attached and connected, the second mounting groove and the second mating groove 21 can be assembled to form a complete second reaction chamber.

[0058] With the above configuration, the first and second reaction chambers can be closed and opened by assembling and disassembling the first end plate 1 and the first flow channel plate 31, and the second end plate 2 and the second flow channel plate 32, thus facilitating the placement and removal of the carrier basket 5 and the replacement of the catalyst. To ensure that the carrier basket 5 can be smoothly placed into the first or second reaction chamber, the thickness of the carrier basket 5 should be less than or equal to the thickness of the first or second reaction chamber. To further ensure the heat conduction effect, the thickness of the carrier basket 5 is preferably set to be equal to the thickness of the first or second reaction chamber, so that the two sides of the carrier basket 5 can fit the first end plate 1 and the first flow channel plate 31, or the second end plate 2 and the second flow channel plate 32, respectively, thereby ensuring sufficient heat conduction contact area. Specifically, the depths of the first mounting groove 312, the first mating groove, the second mounting groove, and the second mating groove 21 can all be set to half the thickness of the carrier basket 5.

[0059] Optionally, the edge of the first mounting groove 312 is provided with a first sealing groove 313, and a first sealing ring 61 is embedded in the first sealing groove 313. The first mounting groove 312 and the first mating groove are sealed together by the first sealing ring 61. The edge of the second mounting groove is provided with a second sealing groove, and a second sealing ring 62 is embedded in the second sealing groove. The second mounting groove and the second mating groove 21 are sealed together by the second sealing ring 62.

[0060] To ensure the airtightness of the first and second reaction chambers after assembly and prevent leakage of reactants or products from the joints, sealing elements are provided between the first end plate 1 and the first flow channel plate 31, and between the second end plate 2 and the second flow channel plate 32. Specifically, in this embodiment, the sealing element is a sealing ring, see [link to documentation]. Figure 2 In the first flow channel plate 31, a first sealing groove 313 is provided along the outer periphery of the first mounting groove 312. The first sealing ring 61 is embedded in the first sealing groove 313. When the first flow channel plate 31 is connected to the first end plate 1, the first sealing ring 61 is squeezed and deformed to tightly fill the joint between the first flow channel plate 31 and the first end plate 1, thereby achieving a sealed connection between the first flow channel plate 31 and the first end plate 1.

[0061] In the second flow channel plate 32, a second sealing groove is provided along the outer periphery of the second mounting groove, and a second sealing ring 62 is embedded in the second sealing groove. When the second flow channel plate 32 is connected to the second end plate 2, the second sealing ring 62 is squeezed and deformed to tightly fill the joint between the second flow channel plate 32 and the second end plate 2, thereby achieving a sealed connection between the second flow channel plate 32 and the second end plate 2.

[0062] Optionally, a connector assembly 7 is provided on the first end plate 1 or the second end plate 2, the connector assembly 7 including a first inlet connector 71, a first outlet connector 72, a second inlet connector 73 and a second outlet connector 74;

[0063] The inlet end of the first reaction chamber is connected to the inlet end of the second reaction chamber. The first inlet connector 71 corresponds to and is connected to the inlet end of the first reaction chamber or the inlet end of the second reaction chamber. The first inlet connector 71 is connected to the reactant material pump. The outlet end of the first reaction chamber is connected to the outlet end of the second reaction chamber. The first outlet connector 72 corresponds to and is connected to the outlet end of the first reaction chamber or the outlet end of the second reaction chamber. The first outlet connector 72 is connected to the first liquid guide tube.

[0064] The second inlet connector 73 corresponds to and is connected to the inlet end of the heat transfer oil channel, and the second inlet connector 73 is connected to the heat transfer oil pump; the second outlet connector 74 corresponds to and is connected to the outlet end of the heat transfer oil channel, and the second outlet connector 74 is connected to the second liquid guide pipe.

[0065] To further simplify the overall structure of the reactor, in this embodiment, the inlet end of the first reaction chamber and the inlet end of the second reaction chamber are aligned and connected to each other. The reactant material pump can be connected to the inlet end of either reaction chamber through the first inlet connector 71. Similarly, the outlet end of the first reaction chamber and the outlet end of the second reaction chamber are also aligned and connected to each other. The first liquid guide pipe can be connected to the outlet end of either reaction chamber through the first outlet connector 72.

[0066] Specifically, please refer to the following: Figure 2 and Figure 5 A first through hole 81 is formed along its thickness at the upper end of the first end plate 1 as the inlet of the first reaction chamber. A first intermediate hole 85 is also formed on the first flow channel plate 31 and the second flow channel plate 32 at the position corresponding to the first through hole 81 to connect to the inlet end of the second reaction chamber. The first inlet connector 71 is installed in the first through hole 81 and can be used to connect a reactant material pump, simultaneously supplying reactant materials to both the first and second reaction chambers.

[0067] Similarly, a second through hole 82 is provided at the lower end of the first end plate 1 along its thickness direction as the outlet of the first reaction chamber. A second intermediate hole 86 is also provided on the first flow channel plate 31 and the second flow channel plate 32 at the position corresponding to the second through hole 82 to connect to the outlet end of the second reaction chamber. A second inlet connector 73 is installed in the second through hole 82 and can be used to connect the first liquid guide pipe to discharge the products generated in the first and second reaction chambers, namely, a mixture of hydrogen and hydrogen-deficient organic matter.

[0068] To avoid interference with the location of the heat transfer oil flow channel, both the first intermediate hole 85 and the second intermediate hole 86 are located on the outside of the heat transfer oil flow channel, such as... Figure 3 As shown, the first intermediate hole 85 and the second intermediate hole 86 on the first end plate 1 are both located outside the first flow channel groove 311.

[0069] The second inlet connector 73 and the second outlet connector 74 are also disposed on the first end plate 1. Specifically, a third through hole 83 is formed at the lower end of the first end plate 1 corresponding to the inlet end of the heat transfer oil channel, and a third intermediate hole 87 is also formed on the first channel plate 31 corresponding to the third through hole 83 to connect to the inlet end of the heat transfer oil channel. The second inlet connector 73 is installed in the third through hole 83 and can be used to connect a heat transfer oil pump to deliver high-temperature heat transfer oil into the heat transfer oil channel.

[0070] Similarly, a fourth through hole 84 is formed at the upper end of the first end plate 1 corresponding to the outlet end of the heat transfer oil channel, and a fourth intermediate hole 88 is formed at the same position on the first flow channel plate 31 corresponding to the fourth through hole 84, to connect to the outlet end of the heat transfer oil channel. The second outlet connector 74 is installed in the fourth through hole 84 and can be used to connect the second liquid guide pipe to discharge the heat transfer oil after heat exchange.

[0071] To avoid interference with the position of the first reaction chamber, the third intermediate hole 87 and the fourth intermediate hole 88 are both located outside the first reaction chamber, such as... Figure 4 As shown, the third intermediate hole 87 and the fourth intermediate hole 88 on the first end plate 1 are both located outside the first mounting groove 312.

[0072] To further prevent heat transfer oil from entering the reaction chamber, independent sealing rings can be installed at the third intermediate hole 87 and the fourth intermediate hole 88, or additional sealing parts can be installed on the first sealing ring 61 or the second sealing ring 62 in the areas corresponding to the third intermediate hole 87 and the fourth intermediate hole 88 for sealing.

[0073] In this embodiment, the connector assembly 7 is entirely disposed on the first end plate 1. In other embodiments, the connector assembly 7 may also be entirely disposed on the second end plate 2, or partially disposed on the first end plate 1 and partially disposed on the second end plate 2.

[0074] Optionally, both the first flow channel plate 31 and the second flow channel plate 32 are provided with temperature measuring holes 33, and temperature measuring elements are installed in the temperature measuring holes 33. The temperature measuring elements are used to measure the temperature of the heat transfer oil flow channel.

[0075] Specifically, temperature measuring holes 33 are provided on both the first flow channel plate 31 and the second flow channel plate 32. Temperature measuring elements can be installed in the temperature measuring holes 33 to monitor the temperature of the heat transfer oil flow channel, thereby facilitating the monitoring of the reaction temperature of the entire reactor. Specifically, the temperature measuring elements can be thermocouples.

[0076] Optionally, the fastener 4 may include a plurality of bolts 41 and a plurality of nuts 42, see [reference needed] Figure 2 In this embodiment, multiple bolt holes are provided at intervals on the edges of the first end plate 1, the first flow channel plate 31, the second flow channel plate 32, and the second end plate 2. During assembly, the bolts 41 pass through the bolt holes in the first end plate 1, the first flow channel plate 31, the second flow channel plate 32, and the second end plate 2 in sequence, and engage with the nuts 42 to connect and lock the plates together.

[0077] The plate dehydrogenation reactor provided in this embodiment is assembled before use. The catalyst-coated carrier is placed in the carrier basket 5, and the two carrier baskets 5 are respectively placed between the first end plate 1 and the first flow channel plate 31 and between the second end plate 2 and the second flow channel plate 32. The entire reactor is connected and locked using sealing rings, bolts 41 and nuts 42.

[0078] During the dehydrogenation reaction, the heat transfer oil pump is first turned on for a period of time to allow the high-temperature heat transfer oil to enter the heat transfer oil channel. The internal temperature of the reactor is observed through thermocouples. When the temperature reaches the temperature required for the organic dehydrogenation process, the reactant material pump is then turned on, allowing the pre-heated gaseous organic matter to enter the reaction chamber for the dehydrogenation reaction. The reaction products are discharged from the reaction chamber through the first liquid guide pipe. After the dehydrogenation reaction is completed, the heat transfer oil pump and the reactant material pump are turned off, and inert gas is introduced at the first inlet connector 71 and the second inlet connector 73 for purging. Finally, the reactor is disassembled and the catalyst carrier is replaced.

[0079] In this application, the reactants of the dehydrogenation reaction can be saturated organic compounds such as methylcyclohexane, 12H-methylindole, and 12H-ethylcarbazole, which will correspondingly generate unsaturated organic compounds such as toluene, methylindole, and ethylcarbazole.

[0080] The plate dehydrogenation reactor provided in this application adopts a plate structure, which is small in size, flexible in layout, convenient for catalyst replacement, and has a high heat / mass transfer rate in the catalyst reaction zone. Multiple dehydrogenation reaction units can be configured to react simultaneously according to actual needs. Compared with conventional reactors, it has higher hydrogen production efficiency in the same space volume.

[0081] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0082] It should also be noted that, in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor should they be construed as indicating or implying relative importance. Moreover, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. In the absence of further restrictions, an element defined by the phrase "includes a..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes the element.

[0083] The technical solutions provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand this application, and the content of this specification should not be construed as a limitation of this application. Furthermore, for those skilled in the art, there will be different forms of changes in the specific implementation methods and application scope based on this application. It is neither necessary nor possible to exhaustively list all implementation methods here, and obvious changes or modifications derived therefrom are still within the protection scope of this application.

Claims

1. A plate-type dehydrogenation reactor, characterized in that, include: At least one dehydrogenation reaction unit, and multiple said dehydrogenation reaction units are connected as one unit; The dehydrogenation reaction unit includes a heat-conducting plate, a first end plate, a second end plate, and fasteners; The first end plate and the second end plate are attached to both sides of the heat-conducting plate and are detachably connected to the heat-conducting plate by the fasteners; A first reaction chamber is formed between the first end plate and the heat-conducting plate, and a second reaction chamber is formed between the second end plate and the heat-conducting plate. A carrier basket is installed in both the first reaction chamber and the second reaction chamber, and a carrier covered with a catalyst is placed in the carrier basket.

2. The plate dehydrogenation reactor according to claim 1, characterized in that: The heat-conducting plate has a heat-conducting oil channel inside, and the inlet end of the heat-conducting oil channel is connected to a heat-conducting oil pump. The heat-conducting oil channel is serpentine in shape.

3. The plate dehydrogenation reactor according to claim 2, characterized in that: The inlet end of the heat-conducting oil channel is located at the bottom end of the heat-conducting plate, and the outlet end of the heat-conducting oil channel is located at the top end of the heat-conducting plate.

4. The plate dehydrogenation reactor according to claim 1, characterized in that: The inlet end of the first reaction chamber is located at the top of the first end plate, and the outlet end of the first reaction chamber is located at the bottom of the first end plate. The inlet end of the second reaction chamber is located at the top of the second end plate, and the outlet end of the second reaction chamber is located at the bottom of the second end plate.

5. The plate dehydrogenation reactor according to claim 2, characterized in that: The heat-conducting plate includes a first flow channel plate and a second flow channel plate disposed opposite to each other; A first flow channel groove is provided on the side of the first flow channel plate facing the second flow channel plate, and a second flow channel groove is provided on the side of the second flow channel plate facing the first flow channel plate. The first flow channel groove and the second flow channel groove are symmetrical in structure. The first flow channel plate and the second flow channel plate are connected as one unit so that the first flow channel groove and the second flow channel groove are connected and communicate with each other to form the heat-conducting oil flow channel.

6. The plate dehydrogenation reactor according to claim 5, characterized in that: The first flow channel plate is welded to the second flow channel plate.

7. The plate dehydrogenation reactor according to claim 5, characterized in that: The first end plate is attached to the first flow channel plate. The first flow channel plate has a first mounting groove on the side facing the first end plate and a first mating groove on the side facing the first flow channel plate. The first mounting groove and the first mating groove are connected and communicate with each other to form the first reaction chamber. The second end plate is attached to the second flow channel plate. The second flow channel plate has a second mounting groove on the side facing the second end plate and a second mating groove on the side facing the second flow channel plate. The second mounting groove and the second mating groove are connected and communicate with each other to form the second reaction chamber.

8. The plate dehydrogenation reactor according to claim 7, characterized in that: The edge of the first mounting groove is provided with a first sealing groove, and a first sealing ring is embedded in the first sealing groove. The first mounting groove and the first mating groove are sealed and connected by the first sealing ring. The edge of the second mounting groove is provided with a second sealing groove, and a second sealing ring is embedded in the second sealing groove. The second mounting groove and the second mating groove are sealed and connected by the second sealing ring.

9. The plate dehydrogenation reactor according to claim 5, characterized in that: Both the first flow channel plate and the second flow channel plate are provided with temperature measuring holes, and temperature measuring elements are installed in the temperature measuring holes. The temperature measuring elements are used to measure the temperature of the heat transfer oil flow channel.

10. The plate dehydrogenation reactor according to claim 2, characterized in that: A connector assembly is provided on the first end plate or the second end plate, the connector assembly including a first inlet connector, a first outlet connector, a second inlet connector and a second outlet connector; The inlet end of the first reaction chamber is connected to the inlet end of the second reaction chamber. The first inlet connector is located at the same position as the inlet end of the first reaction chamber or the inlet end of the second reaction chamber and is connected to each other. The first inlet connector is connected to the reactant material pump. The outlet end of the first reaction chamber is connected to the outlet end of the second reaction chamber. The first outlet connector is located at the same position as the outlet end of the first reaction chamber or the outlet end of the second reaction chamber and is connected to each other. The first outlet connector is connected to the first liquid guide tube. The second inlet connector corresponds to and is connected to the inlet end of the heat transfer oil channel, and is connected to the heat transfer oil pump; the second outlet connector corresponds to and is connected to the outlet end of the heat transfer oil channel, and is connected to the second liquid guide pipe.

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