A multi-layer gradient palladium-based catalyst hydrogenation tower internal component

Abstract

This utility model discloses an internal component of a multi-layer gradient palladium-based catalyst hydrogenation tower, comprising a sealing cover and an arc-shaped catalyst bed. A heater is installed at the upper end of the sealing cover, and an upper tower is positioned at the bottom of the sealing cover. The arc-shaped catalyst bed is placed on the inner wall of the upper tower, and an arc-shaped catalyst bed is placed on the lower side of the arc-shaped catalyst bed. A pump body is installed on the rear outer wall of the upper tower, and a gas inlet is provided at the end of the pump body. This internal component of the multi-layer gradient palladium-based catalyst hydrogenation tower can protect the lower tower through a protective baffle. Warning signs can be affixed to the surface of the protective baffle for added safety, effectively preventing burns to workers. The spray nozzles are evenly distributed on the annular tube for effective solvent spraying.

Description

Technical Field

[0001] This utility model relates to the field of hydrogenation tower technology, specifically to an internal component of a multi-layer gradient palladium-based catalyst hydrogenation tower. Background Technology

[0002] The hydrogenation tower is a key piece of equipment in the hydrogen peroxide production process, primarily used in the hydrogenation reaction stage. In the hydrogen peroxide production process, the hydrogenation tower is an important component of the anthraquinone process. It is an indispensable part of the hydrogen preparation process. By heating a mixture of diazo compounds and hydrogen, the diazo compounds decompose to produce hydrogen. The ceramic pieces placed inside the hydrogenation tower increase the contact area, resulting in excellent hydrogen decomposition. The placement of ceramic pieces increases the contact surface area between the components, thereby increasing the hydrogen decomposition rate and reducing the possibility of incomplete decomposition of diazo compounds due to insufficient contact.

[0003] As per application number CN202320150164.7, this utility model relates to the field of palm oil technology and discloses a hydrogenation tower for palm oil hydrogenation, including a hydrogenation tower body. An inlet is fixedly connected to the upper end of the hydrogenation tower body, and a filter mechanism is movably connected to the inner wall of the inlet. A hydrogen inlet pipe is fixedly connected to the upper end of the hydrogenation tower body, a support leg is fixedly connected to the bottom end of the hydrogenation tower body, and an outlet is fixedly connected to the bottom end of the hydrogenation tower body. A stirring mechanism is fixedly connected to the bottom end of the hydrogenation tower body, and a motor is fixedly connected to the bottom end of the hydrogenation tower body. The stirring mechanism facilitates material discharge. After the mixing reaction is complete, the motor drives the drive shaft to rotate, which in turn drives the stirring rod and scraper to rotate. The scraper then scrapes all the palm oil inside the hydrogenation tower body to the outlet for discharge. This method prevents the palm oil inside the hydrogenation tower body from being completely discharged, thus saving costs.

[0004] The above applications currently have the following shortcomings:

[0005] The amount of catalyst is relatively small, which affects the efficiency of catalysis.

[0006] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a multi-layer gradient palladium-based catalyst hydrogenation tower internal component in order to achieve a more practical purpose. Utility Model Content

[0007] The purpose of this invention is to provide a multi-layer gradient palladium-based catalyst hydrogenation tower internal component to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer gradient palladium-based catalyst hydrogenation tower internal component, including a sealing cover and an arc-shaped catalyst bed one. A heater is installed at the upper end of the sealing cover, and an upper tower is placed at the bottom of the sealing cover. The arc-shaped catalyst bed one is placed on the inner wall of the upper tower, and an arc-shaped catalyst bed two is placed on the lower side of the arc-shaped catalyst bed one. A pump body one is installed on the rear outer wall of the upper tower, and a gas inlet is provided at the end of the pump body one.

[0009] Furthermore, a second pump body is installed on the front outer wall of the upper tower, and a liquid inlet is provided at the end of the second pump body.

[0010] Furthermore, a lower tower is installed at the bottom of the upper tower, and a fixing plate is provided at the bottom of the lower tower.

[0011] Furthermore, the upper perimeter of the fixing plate is provided with protective baffles, and the bottom of the fixing plate is provided with support feet.

[0012] Furthermore, a ring pipe is provided at the rear end of the second pump body, and a spray head is installed on the inner wall of the ring pipe.

[0013] Furthermore, a fixing ring is provided at the bottom of the inner part of the upper tower, and a mounting plate is provided at the upper end of the fixing ring.

[0014] Furthermore, a catalyst bed is disposed inside the fixing ring, and the material of the catalyst bed is the same as that of the first arc-shaped catalyst bed and the second arc-shaped catalyst bed.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the multi-layer gradient palladium-based catalyst hydrogenation tower internal component adopts a multi-layer arc-shaped catalyst bed to better distribute the material flow, ensure the uniform distribution of reactants in the tower, thereby improving reaction efficiency and product quality, and the catalyst bed can be easily replaced by the disassembly structure.

[0016] 1. This utility model uses a protective baffle to protect the lower tower. Warning signs can be affixed to the surface of the baffle for added safety, effectively preventing burns to workers. The spray nozzles are evenly distributed on the ring tube for efficient solvent spraying. The heater controls the reaction temperature, improving reaction stability and controllability, reducing catalyst poisoning, and extending catalyst lifespan. The catalyst bed, arc-shaped catalyst bed one, and arc-shaped catalyst bed two lower the activation energy of the reaction, allowing the reaction to proceed at lower temperatures and pressures. Hydrogen molecules adsorbed on the catalyst generate active hydrogen atoms, which add to unsaturated hydrocarbons such as alkenes and alkynes weakened by the catalyst, thereby altering the reaction pathway and increasing the reaction rate. Furthermore, the multi-layered ladder-like structure of the arc-shaped catalyst beds one and two allows for better distribution of the reactants, ensuring uniform distribution within the tower and improving reaction efficiency and product quality. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural schematic diagram of the internal components of a multi-layer gradient palladium-based catalyst hydrogenation tower according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the upper tower, loop pipe, and catalyst bed of a multi-layer gradient palladium-based catalyst hydrogenation tower according to the present invention.

[0019] Figure 3 This is a schematic diagram of the internal three-dimensional structure of the upper tower of a multi-layer gradient palladium-based catalyst hydrogenation tower according to the present invention.

[0020] In the diagram: 1. Sealing cap; 2. Heater; 3. Upper tower; 4. Pump body one; 5. Gas inlet; 6. Pump body two; 7. Liquid inlet; 8. Lower tower; 9. Protective baffle; 10. Fixing plate; 11. Support leg; 12. Ring pipe; 13. Injector head; 14. Fixing ring; 15. Catalyst bed; 16. Mounting plate; 17. Arc-shaped catalyst bed one; 18. Arc-shaped catalyst bed two. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1-3As shown, a multi-layer gradient palladium-based catalyst hydrogenation tower internal component includes a sealing cover 1 and an arc-shaped catalyst bed 17. A heater 2 is installed at the upper end of the sealing cover 1, and an upper tower 3 is placed at the bottom of the sealing cover 1. The arc-shaped catalyst bed 17 is placed on the inner wall of the upper tower 3, and an arc-shaped catalyst bed 2 18 is placed on the lower side of the arc-shaped catalyst bed 17. A pump body 4 is installed on the rear outer wall of the upper tower 3, and a gas inlet 5 is provided at the end of the pump body 4. A pump body 2 6 is installed on the front outer wall of the upper tower 3, and a liquid inlet 7 is provided at the end of the pump body 2 6. A lower tower 8 is placed at the bottom of the upper tower 3, and a fixing plate 10 is provided at the bottom of the lower tower 8. Protective baffles 9 are provided around the upper end of the fixing plate 10, and support feet 11 are provided at the bottom of the fixing plate 10. A ring pipe 12 is provided at the rear end of the pump body 2 6, and an injection head 13 is placed on the inner wall of the ring pipe 12. The inner bottom of the upper tower 3 is provided with... There is a fixing ring 14, and an mounting plate 16 is provided at the upper end of the fixing ring 14. The catalyst bed 15 is placed inside the fixing ring 14, and the material of the catalyst bed 15 is the same as that of the arc-shaped catalyst bed 17 and the arc-shaped catalyst bed 2 18. The lower tower 8 can be protected by the protective baffle 9. At the same time, some warning signs can be pasted on the surface of the protective baffle 9 to serve as a warning, improve safety, and effectively prevent workers from being burned. The spray head 13 is evenly distributed on the ring tube 12, which can spray the solvent well. The heater 2 can control the reaction temperature (40~70℃), which can improve the stability and controllability of the reaction, reduce catalyst poisoning, and extend the service life of the catalyst. The catalyst bed 15, the arc-shaped catalyst bed 17, and the arc-shaped catalyst bed 2 18 can reduce the activation energy of the reaction, so that the reaction can be carried out at a lower temperature and pressure. Hydrogen molecules adsorbed on the catalyst generate active hydrogen atoms, which then undergo addition reactions with unsaturated hydrocarbons such as alkenes and alkynes weakened by the catalyst, thereby altering the reaction pathway and increasing the reaction rate. Meanwhile, the arc-shaped catalyst bed 17 and arc-shaped catalyst bed 2 18 have a multi-layered ladder distribution structure, and multiple arc-shaped catalyst beds 17 and arc-shaped catalyst bed 2 18 can better distribute the material flow, ensuring uniform distribution of reactants within the tower, thereby improving reaction efficiency and product quality.

[0023] Working principle: When this multi-layer gradient palladium-based catalyst hydrogenation tower internal component is in use, it first... Figures 1-3The working liquid and gas are connected to the liquid inlet 7 and gas inlet 5, respectively. The working liquid is sprayed out using the nozzle 13, allowing it to come into contact with the hydrogen. The upper column 3 and lower column 8 are heated by the heater 2. The working liquid and hydrogen undergo a hydrogenation reaction under the action of the catalyst bed 15, the first arc catalyst bed 17, and the second arc catalyst bed 18, removing unsaturated compounds, impurities, and harmful components such as hydrogen sulfide. The lower column 8 is protected by the protective baffle 9, and warning signs can be affixed to the surface of the protective baffle 9 to serve as a warning, improve safety, and effectively prevent burns to workers. Multiple arc catalyst beds 17 and 28 can better distribute the material, ensuring uniform distribution of reactants in the column, thereby improving reaction efficiency and product quality.

[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A multi-layered gradient palladium-based catalyst hydrogenation column internal comprising a seal cap (1) and an arc-shaped catalyst bed one (17), characterized in that, A heater (2) is installed at the upper end of the sealing cover (1), and an upper tower (3) is placed at the bottom of the sealing cover (1). The first arc-shaped catalyst bed (17) is placed on the inner wall of the upper tower (3), and an arc-shaped catalyst bed (18) is placed on the lower side of the first arc-shaped catalyst bed (17). A pump body (4) is installed on the rear outer wall of the upper tower (3), and a gas inlet (5) is provided at the end of the pump body (4).

2. A multi-layered gradient palladium-based catalyst hydrogenation column internal according to claim 1, characterized in that, The upper tower (3) is equipped with a pump body two (6) on the front outer wall, and a liquid inlet (7) is provided at the end of the pump body two (6).

3. A multi-layered gradient palladium-based catalyst hydrogenation column internal according to claim 1, characterized in that, The lower tower (8) is installed at the bottom of the upper tower (3), and a fixing plate (10) is provided at the bottom of the lower tower (8).

4. A multi-layered gradient palladium-based catalyst hydrogenation column internal according to claim 3, characterized in that, The upper part of the fixing plate (10) is provided with protective baffles (9), and the bottom of the fixing plate (10) is provided with support feet (11).

5. A multi-layered gradient palladium-based catalyst hydrogenation internal according to claim 2, characterized in that, The rear end of the pump body (6) is provided with a ring pipe (12), and the inner wall of the ring pipe (12) is provided with a spray head (13).

6. A multi-layered gradient palladium-based catalyst hydrogenation column internal according to claim 1, characterized in that, The inner bottom end of the upper tower (3) is provided with A retaining ring (14) is provided at the upper end of the retaining ring (14) with a mounting plate (16).

7. The internal component of a multi-layer gradient palladium-based catalyst hydrogenation tower according to claim 6, characterized in that, The The inside of the fixing ring (14) is equipped with catalyst bed (15) and the material of the catalyst bed (15) is consistent with that of the arc-shaped catalyst bed one (17) and the arc-shaped catalyst bed two (18).

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