Double-circulation fixed bed hydrogenation catalyst reaction equipment

Abstract

The utility model relates to the technical field of chemical process equipment, and discloses double-circulation fixed bed hydrogenation catalyst reaction equipment which comprises a base, a reaction assembly and a filter assembly, a mounting rack is arranged on the right side of the top of the base, two groups of fixed seats are arranged on the inner side of the mounting rack at equal intervals, the reaction assembly is arranged on the inner sides of the fixed seats, and the filter assembly is arranged on the inner side of the mounting rack. A plurality of groups of permeation discs are arranged in the reaction cylinder at equal intervals, a separation rod is arranged in the reaction cylinder, a baffle plate is arranged in the separation rod, and the plurality of groups of permeation discs are arranged in the reaction cylinder, so that the contact area and the contact time of reactants and catalysts can be increased, the reaction is more sufficient, and the reaction efficiency is effectively improved; the matching design of the separation rods and the baffles is very ingenious, the through holes in the outer sides of the separation rods are designed in a staggered mode, and the through holes and the matched through holes in the outer sides of the baffles jointly act, so that the flowing path of the reaction materials can be finely regulated and controlled.

Description

Technical Field

[0001] This utility model relates to the field of chemical process equipment technology, specifically a dual-circulation fixed-bed hydrogenation catalyst reaction device. Background Technology

[0002] In the field of chemical production, hydrogenation is a crucial chemical process. Hydrogenation refers to the combination of hydrogen gas with reactant molecules under the action of a catalyst, altering the chemical structure and properties of the reactants. This reaction is indispensable in many industrial production processes. For example, in the petroleum refining industry, hydrogenation can effectively remove impurities such as sulfur, nitrogen, and oxygen from oil products, while simultaneously saturating unsaturated hydrocarbons, greatly improving oil quality and meeting increasingly stringent environmental and performance standards. In the fine chemical industry, hydrogenation is often used to synthesize organic compounds with specific structures, providing key intermediates for the production of pharmaceuticals, pesticides, and fragrances. To achieve efficient and stable hydrogenation reactions, a high-performance reaction equipment is needed. The dual-circulation fixed-bed hydrogenation catalyst reaction equipment was developed precisely to meet this need. It aims to create more ideal reaction conditions for hydrogenation reactions, improving reaction efficiency and product quality.

[0003] However, traditional hydrogenation catalyst reactors have many drawbacks. On the one hand, the reaction components of traditional equipment have relatively simple structures, resulting in insufficient and uneven contact between reactants and catalysts, leading to low reaction efficiency. A large amount of raw material is discharged before it fully reacts, wasting resources and increasing production costs. On the other hand, their separation and filtration systems are often not tightly integrated with the reaction process, resulting in incomplete removal of impurities from the products and affecting product quality. Furthermore, traditional equipment lacks an effective recycling mechanism, making it impossible to recover and reuse unreacted raw materials, further reducing overall production efficiency. These shortcomings not only limit the improvement of production efficiency but also negatively impact product quality, making it difficult to meet the current development needs of the chemical industry for efficient, environmentally friendly, and high-quality production. To address these issues, we propose a dual-circulation fixed-bed hydrogenation catalyst reactor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a dual-circulation fixed-bed hydrogenation catalyst reaction device, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a dual-circulation fixed-bed hydrogenation catalyst reaction device, comprising a base, a reaction assembly, and a filter assembly. A mounting frame is provided on the top right side of the base. Two sets of fixed seats are equidistantly arranged on the inner side of the mounting frame. The reaction assembly is located inside the fixed seats. The reaction assembly includes a reaction cylinder, permeation plates, a partition rod, a baffle plate, and an adjusting seat. Multiple sets of permeation plates are equidistantly arranged inside the reaction cylinder. A partition rod is located inside the reaction cylinder. A baffle plate is located inside the partition rod. An adjusting seat is located on top of the baffle plate. The filter assembly is located at the bottom of the fixed seats.

[0006] Preferably, a reactor is provided on the top left side of the base, and a connecting pipe is provided on the right side of the reactor, so that the hydrogenation catalyst in the reaction cylinder 401 can fully contact the medium in a continuous and suitable reaction environment, thereby undergoing a highly efficient hydrogenation reaction. Due to this direct linkage between the reactor 2 and the reaction component 4, the entire reaction process can proceed in an orderly manner, laying a good foundation for the generation of subsequent reaction products and subsequent filtration and recycling. Overall, it ensures the efficient operation of the dual-circulation fixed-bed hydrogenation catalyst reaction equipment and avoids problems such as reaction interruption or low reaction efficiency caused by unstable medium supply.

[0007] Preferably, the top of the fixing base is provided with an inwardly recessed semi-circular groove, and the two sides of the fixing base are provided with through holes, so that the medium transmission pipeline between the reaction cylinder 401 and other components can be smoothly connected to realize the smooth delivery of the reaction medium. It also facilitates the connection of other auxiliary equipment or lines with the reaction cylinder 401 and the fixing base 301, enhancing the integrity and linkage of the entire equipment. The pipelines connected through these through holes can accurately guide the medium output from the reactor 2 into the reaction cylinder 401, and at the same time, the products after the reaction in the reaction cylinder 401 can be smoothly transported through the transfer pipe 5 to the filter assembly 6 below, thereby ensuring the continuity and stability of the entire process from the start of the reaction to the subsequent processing, and improving the reliability and efficiency of the equipment operation.

[0008] Preferably, the outer side of the separator rod is provided with multiple sets of through holes, which are staggered. The outer side of the baffle plate is also provided with multiple sets of through holes, which are adapted to the through holes on the outer side of the separator rod. By adjusting the position of the baffle plate 404 through the adjusting seat 405, the degree of overlap between the through holes on the separator rod 403 and the baffle plate 404 can be changed. When the degree of overlap of the through holes changes, the flow path of the reaction medium will change accordingly, thereby affecting its contact time and contact mode with the hydrogenation catalyst in the reaction cylinder 401. This flexible adjustment mechanism works in conjunction with the permeation plate 402 in the reaction cylinder 401. The permeation plate 402 increases the contact area between the reaction medium and the catalyst, while the adjustment of the through holes optimizes the flow path of the reaction medium. The two work together to precisely optimize the reaction conditions according to different reaction requirements, greatly improving the reaction efficiency. This adjustment method also enables the entire reaction assembly 4 to achieve relatively ideal reaction results when facing different hydrogenation catalysts and reaction media, enhancing the adaptability and coordination of the equipment to diverse reactions.

[0009] Preferably, the bottom of the reaction cylinder is provided with a conveying pipe, one end of which is provided with a connector. The output end of the connector extends to the bottom of the fixed base through a pipe, which avoids the accumulation of reaction products in the reaction cylinder 401 and ensures that the reaction can proceed continuously and stably. On the other hand, it provides a stable raw material input for the operation of the filter assembly 6. Through this close connection, the entire equipment smoothly transitions from the reaction stage to the filtration stage. The close cooperation of each link greatly improves the continuity and smoothness of the entire process flow, reduces the efficiency loss that may be caused by poor material transmission, and ensures the overall high-efficiency operation of the dual-circulation fixed-bed hydrogenation catalyst reaction equipment.

[0010] Preferably, the filtration assembly includes a filter box, filter screens, a transfer pipe, and a delivery pipe. The filter box is located at the bottom of the fixed base. Multiple sets of filter screens are installed inside the filter box. A transfer pipe is located on the right side of the filter box, and a delivery pipe is located on the left side. The transfer pipe 603 on the right side and the delivery pipe 604 on the left side of the filter box 601 play a crucial role in material transfer and distribution throughout the filtration process. The transfer pipe 603 is responsible for transferring materials between the multiple sets of filter boxes 601, forming an internal circulating filtration system. The delivery pipe 604 transports the purified materials from the filter box 601 outwards, preparing for subsequent recycling or other processing stages. This close cooperation and orderly linkage between the components enables the filtration assembly 6 to efficiently complete the filtration task of the reacted materials, improving not only filtration efficiency and quality but also forming an organic whole with other parts of the equipment, such as the reaction cylinder 401 and the subsequently connected reactor 2, ensuring the stable and reliable operation of the entire dual-circulation fixed-bed hydrogenation catalyst reaction equipment.

[0011] Preferably, the top of the filter box is connected to a connector via a pipe, and the transmission pipe is fixedly connected to multiple filter boxes. The top transmission pipe transmits from left to right, and the bottom transmission pipe transmits from right to left. The output end of the transmission pipe is connected to the reactor. The transmission pipe 603 is fixedly connected to multiple filter boxes 601, and the top and bottom transmission pipes 603 transmit from left to right and from right to left, respectively. This unique dual-circulation transmission design allows the material to circulate fully between the filter boxes 601, enabling each filter screen 602 to filter the material more thoroughly, greatly improving the filtration effect. At the same time, the output end of the transmission pipe 604 is connected to the reactor 2, returning the filtered clean material to the reactor 2, realizing the recycling of the material. This recycling process makes the entire equipment more efficient in raw material utilization, reduces production costs, and ensures that the reaction process can proceed continuously and stably.

[0012] Compared with the prior art, this utility model provides a dual-circulation fixed-bed hydrogenation catalyst reaction device, which has the following beneficial effects:

[0013] 1. The multiple permeation plates inside the reaction chamber increase the contact area and time between the reactants and the catalyst, making the reaction more complete and effectively improving the reaction efficiency. The design of the separator rod and the baffle plate is also ingenious. The through holes on the outside of the separator rod are staggered and work together with the through holes on the outside of the baffle plate to finely control the flow path of the reactants. The reaction process can be flexibly adjusted according to different reaction requirements. Through these carefully designed components, this device can significantly improve the stability and controllability of the reaction, thus exhibiting higher efficiency and better results in hydrogenation catalyst reactions.

[0014] 2. Multiple sets of filters within the filter chamber enable multi-level, all-around filtration of the mixture transported from the reaction vessel, effectively removing impurities and small catalyst particles to ensure a high purity of the output material. The internal circulation filtration system constructed by the transfer pipe allows the material to circulate fully between the multiple filter chambers, ensuring each filter layer functions optimally and significantly improving filtration efficiency. Simultaneously, the transfer pipe returns the filtered, clean material to the reactor, achieving material recycling. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional schematic diagram of the mounting bracket of this utility model;

[0017] Figure 3 This is a three-dimensional unfolded schematic diagram of the reaction component of this utility model;

[0018] Figure 4 This is a three-dimensional cross-sectional view of the filter assembly of this utility model.

[0019] In the diagram: 1. Base; 2. Reactor; 3. Mounting frame; 301. Fixing seat; 4. Reaction assembly; 401. Reaction cylinder; 402. Permeation plate; 403. Separator rod; 404. Barrier plate; 405. Adjustment seat; 5. Transfer pipe; 501. Connector; 6. Filter assembly; 601. Filter box; 602. Filter screen; 603. Transfer pipe; 604. Delivery pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 A dual-circulation fixed-bed hydrogenation catalyst reaction device includes a base 1, a reaction assembly 4, and a filter assembly 6. The device is characterized in that: a mounting frame 3 is provided on the top right side of the base 1; two sets of fixed seats 301 are equidistantly arranged on the inner side of the mounting frame 3; the reaction assembly 4 is provided inside the fixed seats 301; the reaction assembly 4 includes a reaction cylinder 401, a permeation plate 402, a partition rod 403, a baffle plate 404, and an adjusting seat 405; multiple sets of permeation plates 402 are equidistantly arranged inside the reaction cylinder 401; a partition rod 403 is provided inside the reaction cylinder 401; a baffle plate 404 is provided inside the partition rod 403; an adjusting seat 405 is provided on the top of the baffle plate 404; and the filter assembly 6 is provided at the bottom of the fixed seats 301.

[0022] Furthermore, the top of the fixing base 301 is provided with an inwardly recessed semi-circular groove, and the two sides of the fixing base 301 are provided with through holes.

[0023] Furthermore, the outer side of the separator 403 is provided with multiple sets of through holes, and the through holes on the outer side of the separator 403 are designed to be staggered. The outer side of the barrier plate 404 is provided with multiple sets of through holes, and the through holes are adapted to the through holes on the outer side of the separator 403.

[0024] Furthermore, the bottom of the reaction cylinder 401 is provided with a transmission pipe 5, one end of which is provided with a connector 501, and the output end of the connector 501 extends to the bottom of the fixed base 301 through a pipe.

[0025] Furthermore, the filter assembly 6 includes a filter box 601, a filter screen 602, a transmission pipe 603, and a delivery pipe 604. The filter box 601 is located at the bottom of the fixed base 301. Multiple sets of filter screens 602 are provided inside the filter box 601. The transmission pipe 603 is located on the right side of the filter box 601, and the delivery pipe 604 is located on the left side of the filter box 601.

[0026] Furthermore, the top of the filter box 601 is connected to the connector 501 via a pipe, the transmission pipe 603 is fixedly connected to multiple filter boxes 601, and the transmission pipe 603 at the top transmits from left to right, while the transmission pipe 603 at the bottom transmits from right to left. The output end of the conveying pipe 604 is connected to the reactor 2.

[0027] Working principle: The reactor 2 on the top left of the base 1 is started. The connecting pipe on the right side of the reactor 2 delivers the hydrogen and other substances needed for the reaction. The reaction assembly 4 is mounted on two sets of fixed seats 301 inside the mounting bracket 3 on the top right of the base 1. The reaction cylinder 401 is the main reaction site. It contains multiple sets of permeation plates 402 at equal intervals. These permeation plates 402 increase the contact area between the reactants and the catalyst, helping the reaction to proceed better. The reactants delivered by the reactor 2 enter the reaction cylinder 401 through the pipe and come into full contact with the hydrogenation catalyst stored in the reaction cylinder 401. Under the action of the permeation plates 402... The reactants undergo a hydrogenation reaction on the catalyst surface. During the reaction, the partition rod 403 inside the reaction chamber 401 is crucial. The partition rod 403 has staggered small holes on its outer side, and the baffle plate 404 also has multiple sets of small holes that align with the holes on the partition rod 403. By adjusting the position of the baffle plate 404 using the adjusting seat 405, the degree of overlap between the small holes on the partition rod 403 and the baffle plate 404 can be controlled. This allows for adjustment of the flow path and speed of the reactants within the reaction chamber 401. This flexible adjustment method can optimize reaction conditions and improve reaction efficiency according to different reaction requirements. As the reaction proceeds… The reaction products and unreacted substances are sent out from the transfer pipe 5 at the bottom of the reaction vessel 401. The connector 501 at one end of the transfer pipe 5 sends these substances through a pipe to the bottom of the fixed base 301, preparing for subsequent filtration. The filter assembly 6 installed at the bottom of the fixed base 301 then begins operation. The filter assembly 6 includes a filter box 601, filter screens 602, a transfer pipe 603, and a delivery pipe 604. The substances sent out from the connector 501 enter the filter box 601 through the pipe. The filter box 601 contains multiple sets of filter screens 602, which filter out impurities and catalysts from the substances layer by layer. Small particles, etc., are used to clean the material. Multiple filter boxes 601 are connected by transmission pipes 603 to form a double-circulation filtration route. The upper transmission pipe 603 sends material from left to right, and the lower transmission pipe 603 sends material from right to left. This bidirectional feeding method ensures that the material circulates fully in the filter box 601, making the filtration effect better. The cleaned material is sent out from the left side of the filter box 601 through the transmission pipe 604. The outlet of the transmission pipe 604 is connected to the reactor 2, and the clean material is sent back to the reactor 2. In this way, these materials can be recycled, reducing production costs and ensuring a stable and continuous reaction process.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-circulation fixed-bed hydrogenation catalyst reaction device, comprising a base (1), a reaction assembly (4), and a filter assembly (6), characterized in that: The base (1) has a mounting bracket (3) on the top right side. The mounting bracket (3) has two sets of fixed seats (301) equidistantly arranged on the inner side. The fixed seat (301) has a reaction assembly (4) on the inner side. The reaction assembly (4) includes a reaction cylinder (401), a permeation plate (402), a separator rod (403), a barrier plate (404), and an adjustment seat (405). The reaction cylinder (401) has multiple sets of permeation plates (402) equidistantly arranged inside. The reaction cylinder (401) has a separator rod (403) inside. The separator rod (403) has a barrier plate (404) inside. The barrier plate (404) has an adjustment seat (405) on the top. The fixed seat (301) has a filter assembly (6) at the bottom.

2. The dual-circulation fixed-bed hydrogenation catalyst reaction apparatus according to claim 1, characterized in that: The base (1) has a reactor (2) on its top left side and a connecting pipe port on its right side.

3. The dual-circulation fixed-bed hydrogenation catalyst reaction apparatus according to claim 1, characterized in that: The top of the fixing base (301) is provided with an inwardly recessed semi-circular groove, and the two sides of the fixing base (301) are provided with through holes.

4. The dual-circulation fixed-bed hydrogenation catalyst reaction apparatus according to claim 1, characterized in that: The outer side of the separator (403) is provided with multiple sets of through holes, and the through holes on the outer side of the separator (403) are designed to be staggered. The outer side of the barrier plate (404) is provided with multiple sets of through holes, and the through holes are adapted to the through holes on the outer side of the separator (403).

5. The dual-circulation fixed-bed hydrogenation catalyst reaction apparatus according to claim 1, characterized in that: The bottom of the reaction cylinder (401) is provided with a conveying pipe (5), and one end of the conveying pipe (5) is provided with a connector (501). The output end of the connector (501) extends to the bottom of the fixed seat (301) through a pipe.

6. The dual-circulation fixed-bed hydrogenation catalyst reaction apparatus according to claim 1, characterized in that: The filter assembly (6) includes a filter box (601), a filter screen (602), a transmission pipe (603), and a delivery pipe (604). The filter box (601) is located at the bottom of the fixed base (301). Multiple sets of filter screens (602) are provided inside the filter box (601). The transmission pipe (603) is located on the right side of the filter box (601), and the delivery pipe (604) is located on the left side of the filter box (601).

7. The dual-circulation fixed-bed hydrogenation catalyst reaction apparatus according to claim 6, characterized in that: The top of the filter box (601) is connected to the connector (501) via a pipe. The transmission pipe (603) is fixedly connected to multiple filter boxes (601). The transmission pipe (603) at the top transmits from left to right, and the transmission pipe (603) at the bottom transmits from right to left. The output end of the conveying pipe (604) is connected to the reactor (2).

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