A high-efficiency catalytic hydrogenation reactor
By introducing a vibration guiding system and a crank-connecting rod mechanism into the catalytic hydrogenation reactor, the problems of uneven catalyst distribution and channeling were solved, achieving full contact between the catalyst and the reactants, improving reaction efficiency and product yield, and ensuring the stability and continuity of the reaction process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG BINNONG TECH
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
Smart Images
Figure CN224422813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hydrogenation catalyst preparation technology, and in particular to a high-efficiency catalytic hydrogenation reaction device. Background Technology
[0002] Catalytic hydrogenation is a core process in the petrochemical, pharmaceutical, and fine chemical industries, and its reaction efficiency directly affects product quality and production costs. Traditional fixed-bed reactors suffer from low mass transfer efficiency and insufficient catalyst utilization, resulting in long reaction cycles and high energy consumption. With the popularization of green chemistry concepts and the advancement of dual-carbon goals, developing a reaction device that can improve mass transfer efficiency and achieve efficient catalyst utilization is of great significance for promoting energy conservation, emission reduction, and process upgrading in the chemical industry.
[0003] Existing catalytic hydrogenation reactors generally employ a vertical fixed-bed design, primarily consisting of a reactor body, heating jacket, gas distributor, and a fixed catalyst bed. Reactants enter from the top, flow evenly through the catalyst bed via the distributor, and hydrogen is injected through side inlets. Temperature control relies on circulating heat transfer oil in the jacket, while pressure is regulated by a back pressure valve. The catalyst is packed in a fixed stack within the reaction zone, with sintered metal filter plates at the bottom to prevent catalyst loss. Some units are equipped with a circulation pump for external material circulation, but the catalyst bed remains static throughout.
[0004] The most prominent drawback of existing equipment is that static catalyst beds are prone to forming reaction channels, leading to insufficient contact between the reactants and the catalyst. Because reactants in a fixed bed naturally choose the path of least resistance, some areas of the catalyst are not fully utilized, while other areas may generate byproducts due to over-reaction. This uneven mass transfer not only reduces reaction efficiency but also affects product selectivity and catalyst lifespan, becoming a key bottleneck restricting the economic viability of hydrogenation processes. Utility Model Content
[0005] To overcome the above deficiencies, this invention provides a high-efficiency catalytic hydrogenation reactor, which aims to improve the problem of insufficient contact between the raw material and the catalyst due to uneven catalyst distribution or channeling.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a base is included, a column is fixedly connected to the upper surface of the base, a reaction vessel is fixedly connected to the outer wall of the column, and a vibration assembly is provided on the inner wall of the reaction vessel;
[0007] The vibration assembly includes a guide plate, the outer wall of which is fixedly connected to the inner wall of the reactor. A protective column and a spring are fixedly connected to the upper surface of the guide plate. A motor is installed on the inner wall of the guide plate. A connecting column is fixedly connected to the output end of the motor. A crank is fixedly connected to the outer wall of the connecting column. A rotating shaft is rotatably connected to the outer wall of the crank. A connecting rod is fixedly connected to the outer wall of the rotating shaft. A rotating shaft is rotatably connected to the inner wall of one end of the connecting rod. A fixing column is fixedly connected to the outer wall of the rotating shaft. A connecting rod is slidably connected to the inner wall of the fixing column. A spring is attached to the outer wall of the connecting rod. A fixing column is slidably connected to the outer wall of the fixing column.
[0008] Furthermore, a flow guide plate is fixedly connected to the upper surface of the fixed column one, a grid plate is fixedly connected to the upper surface of the flow guide plate two, a spring one is fixedly connected to the lower surface of the flow guide plate two, a protective column is attached to the outer wall of the spring one, and the flow guide plate one is fixedly connected to the outer wall of the protective column.
[0009] Furthermore, a feed pipe is fixedly connected to the outer wall of the reactor, a funnel is fixedly connected to the outer wall of the feed pipe, a turntable is fixedly connected to the inner wall of the funnel, a turntable is rotatably connected to the inner wall of the turntable, a control rod is fixedly connected to the outer wall of the turntable, a gear is rotatably connected to the inner wall of the turntable, the gear meshes with the turntable, a slider is rotatably connected to the outer wall of the gear, the gear meshes with the slider, a limit post is slidably connected to the inner wall of the slider, and a turntable is fixedly connected to the outer wall of the limit post.
[0010] Furthermore, an inlet distributor, a discharge pipe, and a unloading pipe are fixedly connected to the inner wall of the reactor, an outlet collector is attached to the outer wall of the discharge pipe, and a distribution plate is fixedly connected to the inner wall of the reactor.
[0011] Furthermore, a scale basket and a grid plate are fixedly connected to the inner wall of the reactor, and a discharge pipe and a unloading pipe are fixedly connected to the inner wall of the column.
[0012] Furthermore, the inner wall of the reactor is fixedly connected to a second distribution plate and a cold hydrogen tank, and the outer wall of the second distribution plate is fitted with the cold hydrogen tank.
[0013] Furthermore, an outlet collector is fixedly connected to the inner wall of the reactor.
[0014] Furthermore, a dirt collection basket is attached to the outer wall of the distribution disc.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, in order to prevent the problem of low reaction efficiency caused by uneven material distribution during the catalytic hydrogenation reaction, an innovative vibration guiding system is adopted. The system uses a crank connecting rod mechanism in conjunction with a spring buffer device. The high-frequency micro-amplitude vibration of the guiding disk is achieved by motor drive, so that the catalyst and the reactants can be fully contacted and mixed, which significantly improves the reaction efficiency and product yield.
[0017] 2. In this utility model, in order to prevent material blockage and uneven distribution during the feeding process, the turntable angle is controlled by gear transmission, and the opening and closing of the feed port is precisely adjusted by the slider limit system to achieve uniform distribution and controllable feeding of materials, thereby ensuring the stability and continuity of the reaction process. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a high-efficiency catalytic hydrogenation reactor proposed in this utility model;
[0019] Figure 2 This is a schematic diagram of the scale basket part of a high-efficiency catalytic hydrogenation reactor proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the grid disk structure of a high-efficiency catalytic hydrogenation reactor proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the crank section of a high-efficiency catalytic hydrogenation reactor proposed in this utility model;
[0022] Figure 5 This is a schematic diagram of the control rod part of a high-efficiency catalytic hydrogenation reaction device proposed in this utility model.
[0023] Legend:
[0024] 1. Base; 2. Column; 3. Discharge pipe; 4. Unloading pipe; 5. Inlet pipe; 6. Funnel; 7. Inlet distributor; 8. Control lever; 9. Distribution plate one; 10. Scale basket; 11. Grid plate; 12. Guide plate one; 13. Distribution plate two; 14. Cold hydrogen box; 15. Outlet collector; 16. Guide plate two; 17. Protective column; 18. Spring one; 19. Fixed column one; 20. Fixed column two; 21. Connecting rod one; 22. Connecting rod two; 23. Spring two; 24. Rotating shaft one; 25. Rotating shaft two; 26. Crank; 27. Connecting column; 28. Motor; 29. Turntable one; 30. Turntable two; 31. Gear; 32. Slider; 33. Limiting column; 34. Reactor. Detailed Implementation
[0025] 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.
[0026] Reference Figures 1-5 One embodiment of this utility model includes a base 1, which provides a stable support foundation for the entire reaction device, ensuring the stability of the equipment during operation. A column 2 is fixedly connected to the upper surface of the base 1, and a reaction vessel 34 is fixedly connected to the outer wall of the column 2. The reaction vessel 34 provides a space for catalytic hydrogenation reaction. A vibration assembly is provided on the inner wall of the reaction vessel 34, including a guide plate 12. The outer wall of the guide plate 12 is fixedly connected to the inner wall of the reaction vessel 34. A protective column 17 and a spring 18 are fixedly connected to the upper surface of the guide plate 12. The spring 18 provides a reset force for the guide plate 16. A motor 28 is provided on the inner wall of the guide plate 12, providing driving force for the vibration system. A connecting column 27 is fixedly connected to the output end of the motor 28, and a crank 26 is fixedly connected to the outer wall of the connecting column 27, converting the rotational motion into reciprocating motion. A crank 26 is rotatably connected to a second shaft 25 on its outer wall. A connecting rod 21 is fixedly connected to the outer wall of the second shaft 25. The connecting rod 21 converts the rotational motion into linear motion. A shaft 24 is rotatably connected to the inner wall of one end of the connecting rod 21. A fixed post 20 is fixedly connected to the outer wall of the shaft 24. A connecting rod 22 is slidably connected to the inner wall of the fixed post 20. A spring 23 is attached to the outer wall of the connecting rod 22. The spring 23 provides an auxiliary buffer function. A fixed post 19 is slidably connected to the outer wall of the fixed post 20. A guide plate 16 is fixedly connected to the upper surface of the fixed post 19. A grid plate 11 is fixedly connected to the upper surface of the guide plate 16. The grid plate 11 is responsible for carrying and fixing the catalyst particles. A spring 18 is fixedly connected to the lower surface of the guide plate 16. A protective post 17 is attached to the outer wall of the spring 18. A guide plate 12 is fixedly connected to the outer wall of the protective post 17.
[0027] Reference Figures 1-5A feed pipe 5 is fixedly connected to the outer wall of the reactor 34. A funnel 6 is fixedly connected to the outer wall of the feed pipe 5, providing a buffer storage space for raw materials. A turntable 29 is fixedly connected to the inner wall of the funnel 6, providing an installation base for the feed adjustment mechanism. A turntable 30 is rotatably connected to the inner wall of the turntable 29. A control lever 8 is fixedly connected to the outer wall of the turntable 30, providing an interface for manually adjusting the feed amount. A gear 31 is rotatably connected to the inner wall of the turntable 29, meshing with the turntable 30. A slider 32 is rotatably connected to the outer wall of the gear 31, controlling the opening and closing of the feed with linear motion. The gear 31 meshes with the slider 32. A limit post 33 is slidably connected to the inner wall of the slider 32. A turntable 29 is fixedly connected to the inner wall of the reactor 34. An inlet distributor 7, a discharge pipe 3, and a discharge pipe 4 are fixedly connected to the inner wall of the reactor 34. The inlet distributor 7 distributes the raw materials evenly to the reaction area. An outlet collector 15 is attached to the outer wall of the discharge pipe 3. A distribution plate 9 is fixedly connected to the inner wall of the reactor 34. A scale basket 10 and a grid plate 11 are fixedly connected to the inner wall of the reactor 34. A discharge pipe 3 and a discharge pipe 4 are fixedly connected to the inner wall of the column 2. The discharge pipe 3 is responsible for discharging the product after the reaction is completed. A distribution plate 13 and a cold hydrogen tank 14 are fixedly connected to the inner wall of the reactor 34. A cold hydrogen tank 14 is attached to the outer wall of the distribution plate 13. An outlet collector 15 is fixedly connected to the inner wall of the reactor 34. A scale basket 10 is attached to the outer wall of the distribution plate 9.
[0028] Working Principle: After the raw material enters the reactor 34 from the inlet distributor 7, it is first evenly distributed by the distribution plate 9. During this process, impurities are intercepted by the scale basket 10. The raw material then continues to flow downwards, and when it passes through the grid plate 11, it reacts with the particulate catalyst therein. To ensure a complete reaction and prevent channeling or uneven catalyst distribution, after the equipment starts, the motor 28 drives the connecting column 27 to rotate, which in turn drives the fixed crank 26 to rotate synchronously. The rotational motion of the crank 26 is converted into reciprocating up-and-down motion through the connecting rod 21, causing the fixed column 20 to slide against the inner wall of the fixed column 19. This motion compresses the spring 23 on the inner wall of the fixed column 20, and its rebound force drives the fixed column 20 to strike the connecting rod 22, transmitting the vibration to the guide plate 16. The guide plate 16 undergoes compression and rebound motion against the inner wall of the protective column 17 through the fixed spring 18. The vibration promotes the natural compaction of the catalyst particles, achieving uniform distribution.
[0029] Furthermore, to adapt to the catalyst dosage adjustment requirements under different reaction conditions, flexible control can be achieved by moving the control lever 8. When the control lever 8 rotates along the inner wall of turntable 29, it drives turntable 30, which is fixedly connected, to rotate synchronously. The rotation of turntable 30 is driven by multiple gears 31 meshing with its inner wall, thereby causing the slider 32 meshing with the gears 31 to slide linearly along the limiting post 33, thus achieving adjustment of the opening degree.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-efficiency catalytic hydrogenation reaction device comprising a base (1), characterized in that: A column (2) is fixedly connected to the upper surface of the base (1), and a reaction vessel (34) is fixedly connected to the outer wall of the column (2). A vibration assembly is provided on the inner wall of the reaction vessel (34). The vibration assembly includes a guide plate (12), the outer wall of which is fixedly connected to the inner wall of the reactor (34). A protective column (17) and a spring (18) are fixedly connected to the upper surface of the guide plate (12). A motor (28) is provided on the inner wall of the guide plate (12). A connecting column (27) is fixedly connected to the output end of the motor (28). A crank (26) is fixedly connected to the outer wall of the connecting column (27). The crank (26) rotates on its outer wall. A rotating shaft 2 (25) is connected. A connecting rod 1 (21) is fixedly connected to the outer wall of the rotating shaft 2 (25). A rotating shaft 1 (24) is rotatably connected to the inner wall of one end of the connecting rod 1 (21). A fixing column 2 (20) is fixedly connected to the outer wall of the rotating shaft 1 (24). A connecting rod 2 (22) is slidably connected to the inner wall of the fixing column 2 (20). A spring 2 (23) is attached to the outer wall of the connecting rod 2 (22). A fixing column 1 (19) is slidably connected to the outer wall of the fixing column 2 (20).
2. The high-efficiency catalytic hydrogenation reaction device according to claim 1, characterized in that: The upper surface of the fixed column (19) is fixedly connected to the flow guide plate (16), the upper surface of the flow guide plate (16) is fixedly connected to the grid plate (11), the lower surface of the flow guide plate (16) is fixedly connected to the spring (18), the outer wall of the spring (18) is attached to the protective column (17), and the outer wall of the protective column (17) is fixedly connected to the flow guide plate (12).
3. The high-efficiency catalytic hydrogenation reaction device according to claim 1, characterized in that: The outer wall of the reactor (34) is fixedly connected to a feed pipe (5), the outer wall of the feed pipe (5) is fixedly connected to a funnel (6), the inner wall of the funnel (6) is fixedly connected to a turntable (29), the inner wall of the turntable (29) is rotatably connected to a turntable (30), the outer wall of the turntable (30) is fixedly connected to a control rod (8), the inner wall of the turntable (29) is rotatably connected to a gear (31), the gear (31) meshes with the turntable (30), the outer wall of the gear (31) is rotatably connected to a slider (32), the gear (31) meshes with the slider (32), the inner wall of the slider (32) is slidably connected to a limit post (33), the outer wall of the limit post (33) is fixedly connected to the turntable (29).
4. The high-efficiency catalytic hydrogenation reaction device according to claim 1, characterized in that: The inner wall of the reactor (34) is fixedly connected to an inlet distributor (7), a discharge pipe (3) and a discharge pipe (4). The outer wall of the discharge pipe (3) is fitted with an outlet collector (15). The inner wall of the reactor (34) is fixedly connected to a distribution plate (9).
5. The high efficiency catalytic hydrogenation reactor of claim 1, wherein: The inner wall of the reactor (34) is fixedly connected to a scale basket (10) and a grid plate (11), and the inner wall of the column (2) is fixedly connected to a discharge pipe (3) and a discharge pipe (4).
6. The high efficiency catalytic hydrogenation reactor of claim 1, wherein: The inner wall of the reactor (34) is fixedly connected to the distribution plate 2 (13) and the cold hydrogen tank (14), and the outer wall of the distribution plate 2 (13) is attached to the cold hydrogen tank (14).
7. The high efficiency catalytic hydrogenation reactor of claim 4, wherein: An outlet collector (15) is fixedly connected to the inner wall of the reactor (34).
8. The high efficiency catalytic hydrogenation reactor of claim 4, wherein: The outer wall of the distribution plate (9) is fitted with a dirt collection basket (10).