Reactor for producing o-phenylphenol
By designing a device for catalyst storage and separation, the impact of catalyst replacement on high temperature and high pressure environment and liquid or gas leakage during catalyst replacement is solved, and a safe and efficient catalyst replacement process is achieved.
Patent Information
- Application Number
- CN202422160670.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-04
AI Technical Summary
During the production of o-phenylphenol, the catalyst replacement will affect the high temperature and high pressure environment in the dehydrogenation reactor, and leakage of gas or liquid compounds may harm the surrounding environment.
A device including a dehydrogenation reactor body and a sliding sleeve is designed. The catalyst storage and separation are realized through the combination of the inner pallet, the central support column, the inner sealing ring and the outer filter cartridge, and the inner pallet and the outer filter cartridge are displaced simultaneously upward through the motor-driven threaded rod to avoid opening the reactor body directly.
It effectively avoids the impact of catalyst replacement on high temperature and high pressure environment, and prevents liquid or gas leakage, ensuring the safety of staff and the stable operation of the reactor.
Smart Images
Figure CN222969797U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of o-phenylphenol production, and particularly relates to a reactor for producing o-phenylphenol. Background Art
[0002] The production of o-phenylphenol requires the use of a dehydrogenation reactor for dehydrogenation reaction to convert o-cyclohexylcyclohexanone into o-phenylphenol. In the dehydrogenation reaction, o-phenylphenol usually participates in the reaction in a liquid form. The dehydrogenation reaction is a process of removing hydrogen atoms from a compound to form an unsaturated compound or other products. In the production of o-phenylphenol, cyclohexanone is usually used as a raw material, and cyclohexanone is converted into o-phenylphenol through dehydrogenation reaction.
[0003] Cyclohexanone itself has certain irritation and toxicity, which may cause irritation and damage to eyes, skin, respiratory tract, etc. Long-term exposure may lead to dry and chapped skin, eye discomfort and respiratory tract inflammation. At the same time, during the dehydrogenation reaction, the dehydrogenation reactor is at high temperature and high pressure, and the reaction product o-phenylphenol will also exist in the reaction system in a gaseous or liquid form. It is necessary to stop the machine and cool down before discharging the material to take out the catalyst. After the residual material is discharged, the temperature in the reactor drops slowly, and the efficiency of catalyst replacement is low. At the same time, when replacing the catalyst, it is necessary to ensure that the working area is clean and tidy, free of dust, debris and other possible pollutants, which is not convenient for the staff to protect the environment inside the reactor. Summary of the Utility Model
[0004] The utility model provides a reactor for producing o-phenylphenol, which has the characteristics of solving the problems that when replacing the catalyst, it will affect the high-temperature and high-pressure environment inside the dehydrogenation reactor, and there are many gas or liquid compounds, which are more harmful.
[0005] The utility model provides the following technical solutions: including a dehydrogenation reactor body and a sliding sleeve, an inner support plate is arranged in the inner cavity of the dehydrogenation reactor body, a central support column is supported on the inner support plate, an inner sealing ring is slidably connected to the outer wall of the central support column, an outer filter cylinder is arranged outside the inner sealing ring, several layers of inner filter cylinders are arranged in the outer filter cylinder, the outer wall of one of the outer filter cylinders is slidably connected to the inner wall of the sliding sleeve, a sealing plate is installed at the top of the inner sealing ring and the outer filter cylinder, two sliders are fixedly connected to the connection part of the inner sealing ring and the central support column, a sliding groove matched with the sliders is opened on the outer wall of the central support column, a motor is installed at the bottom end of the dehydrogenation reactor body, a threaded rod is fixedly connected to the driving end of the motor, the threaded rod is in threaded connection with the inner support plate, a central rod is rotatably connected to the center of the central support column, a connecting head is fixedly connected to the bottom end of the central rod, and an installation groove matched with the connecting head is opened on the inner support plate.
[0006] Wherein, a lower connecting plate and an upper connecting plate are respectively fixedly connected to the joints between the dehydrogenation reactor body and the sliding sleeve, and the upper connecting plate and the lower connecting plate are connected by bolts.
[0007] Wherein, support blocks are fixedly connected to the inner wall of the outer filter cylinder, and corresponding connecting grooves are formed in both the sealing plate and the support blocks, and the connecting grooves are connected by connecting blocks.
[0008] Wherein, a reinforcing plate for reinforcement is fixedly connected to the inner wall of the outer filter cylinder, a limiting rod is fixedly connected to the inner wall of the dehydrogenation reactor body, and the limiting rod penetrates through the inner support plate and the other slider.
[0009] Wherein, a plurality of the inner filter cylinders are equidistantly distributed, and connecting holes matching the outer wall of the outer filter cylinder are formed in the lower connecting plate and the upper connecting plate.
[0010] The beneficial effects of the present utility model are as follows: The inner support plate supports the central support column, the inner sealing ring and the outer filter cylinder. The inner support plate can adjust its height under the rotation of the threaded rod, and cooperate with the sealing plate to always seal the positions of the inner sealing ring and the top of the outer filter cylinder. After the inner support plate is displaced to the position where the connecting hole is formed, the inner sealing ring and the outer filter cylinder can be separated from the inner cavity of the dehydrogenation reactor while maintaining the seal, so that when the device replaces the catalyst, directly opening the dehydrogenation reactor body can be avoided, which affects the high-temperature and high-pressure environment in its inner cavity, and at the same time, a large amount of reaction liquid and gas flowing out can be avoided, which endangers the surrounding environment.
[0011] Parts not involved in the device are the same as or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0013] Figure 2 is a three-dimensional sectional structural schematic diagram of the present utility model;
[0014] Figure 3 is a three-dimensional structural schematic diagram of the dehydrogenation reactor body in the present utility model;
[0015] Figure 4 is a front view structural schematic diagram of the lower connecting plate in the present utility model;
[0016] Figure 5 is the present utility model Figure 2 an enlarged schematic diagram of A in.
[0017] In the figure: 1. Dehydrogenation reactor body; 11. Lower connecting plate; 111. Upper connecting plate; 112. Connecting hole; 12. Sliding sleeve; 13. Inner support plate; 2. Central support column; 21. Inner sealing ring; 211. Reinforcing plate; 22. Outer filter cartridge; 221. Inner filter cartridge; 23. Chute; 24. Slide block; 25. Sealing plate; 251. Connecting groove; 252. Connecting block; 26. Support block; 3. Motor; 31. Threaded rod; 311. Limiting rod; 32. Central rod; 321. Connecting head; 322. Mounting groove. Detailed implementation manner
[0018] Please refer to Figures 1-5 , the present utility model provides the following technical solutions: including a dehydrogenation reactor body 1 and a sliding sleeve 12. An inner support plate 13 is provided in the inner cavity of the dehydrogenation reactor body 1. A central support column 2 is supported on the inner support plate 13. An inner sealing ring 21 is slidably connected to the outer wall of the central support column 2. An outer filter cartridge 22 is provided outside the inner sealing ring 21. A plurality of layers of inner filter cartridges 221 are provided inside the outer filter cartridge 22. The outer wall of one of the outer filter cartridges 22 is slidably connected to the inner wall of the sliding sleeve 12. A sealing plate 25 is installed at the tops of the inner sealing ring 21 and the outer filter cartridge 22. Two slide blocks 24 are fixedly connected to the connection between the inner sealing ring 21 and the central support column 2. A chute 23 matching the slide blocks 24 is opened on the outer wall of the central support column 2. A motor 3 is installed at the bottom end of the dehydrogenation reactor body 1. The driving end of the motor 3 is fixedly connected to a threaded rod 31. The threaded rod 31 is threadedly connected to the inner support plate 13. A central rod 32 is rotatably connected to the center of the central support column 2. A connecting head 321 is fixedly connected to the bottom end of the central rod 32. A mounting groove 322 matching the connecting head 321 is opened on the inner support plate 13.
[0019] In this implementation: The dehydrogenation reactor body 1 is the carrier for the loading device. Through the high-temperature and high-pressure environment inside the dehydrogenation reactor body 1 and in cooperation with the catalyst, o-cyclohexylcyclohexanone is converted into o-phenylphenol. The inner support plate 13 in the inner cavity of the dehydrogenation reactor body 1 is used to install and support the central support column 2 and the outer filter cylinder 22, so that the central support column 2 and the outer filter cylinder 22 are above the inner support plate 13 for storing and placing the catalyst. At the same time, the inner sealing ring 21 slidably connected to the outer wall of the central support column 2 can seal the connection between the outer filter cylinder 22 and the central support column 2, so that the inner sealing ring 21 and the outer filter cylinder 22 form a box for storing and placing the catalyst. The several layers of inner filter cylinders 221 provided inside the outer filter cylinder 22 can separate the catalyst between the outer filter cylinder 22 and the inner sealing ring 21, ensuring that the catalyst can be evenly distributed inside the inner sealing ring 21 and the outer filter cylinder 22, enabling it to catalyze the conversion of o-cyclohexylcyclohexanone into o-phenylphenol. After a certain period of conversion, when the catalytic effect of the catalyst deteriorates and the o-cyclohexylcyclohexanone in the dehydrogenation reactor body 1 is not completely converted, when the catalyst needs to be replaced, directly opening the device to take out the catalyst will affect the high-temperature and high-pressure environment, and at the same time, the liquid produced during production is likely to leak, which is not conducive to the safe operation of the staff. At this time, the motor 3 can be used to drive the threaded rod 31. The threaded rod 31 is threadedly connected to the inner support plate 13, so that the inner support plate 13 can slide upward synchronously with the central support column 2 and the outer filter cylinder 22 under the rotation of the threaded rod 31. At this time, the central rod 32 rotatably connected to the center of the central support column 2 is connected to the installation groove 322 opened at the center of the inner support plate 13 through the connecting head 321, so that the central support column 2 can move upward synchronously with the inner sealing ring 21 and the outer filter cylinder 22. When the inner support plate 13 is displaced to the height of the lower connecting plate 11, at this time, the inner support plate 13 can seal the connecting hole 112 opened on the lower connecting plate 11, ensuring that the high-temperature and high-pressure environment inside the inner cavity of the dehydrogenation reactor body 1 will not be affected. At the same time, when the central support column 2, the inner sealing ring 21, and the outer filter cylinder 22 drive the catalyst to move upward, the sealing plates 25 installed on the inner sealing ring 21 and the outer filter cylinder 22 can fit with the inner wall of the sliding sleeve 12, so that most of the liquid remaining in the catalyst can flow into the dehydrogenation reactor body 1 when the outer filter cylinder 22 moves upward continuously. And the sealing plate 25 always seals the top of the outer filter cylinder 22. After the inner support plate 13 is displaced to the corresponding position, the liquid in the catalyst inside the outer filter cylinder 22 will be discharged and separated from the dehydrogenation reactor body 1. At this time, the sealing plate 25 can be separated from the outer filter cylinder 22, and then by rotating the central rod 32, the connecting head 321 is separated from the installation groove 322, so that the inner sealing ring 21 and the outer filter cylinder 22 can be integrally separated from the inner support plate 13, enabling the device to replace the catalyst while avoiding directly opening the dehydrogenation reactor body 1 and affecting the high temperature and high pressure, thereby ensuring the conversion effect of o-cyclohexylcyclohexanone inside the dehydrogenation reactor body 1. After the catalyst inside the outer filter cylinder 22 and the inner sealing ring 21 is replaced, the outer filter cylinder 22 and the sealing plate 25 can be installed in sequence.Reset it to the dehydrogenation reactor body 1 and continue to catalyze the conversion of o-cyclohexylcyclohexanone.
[0020] A lower connecting plate 11 and an upper connecting plate 111 are respectively fixedly connected to the connection between the dehydrogenation reactor body 1 and the sliding sleeve 12, and the upper connecting plate 111 and the lower connecting plate 11 are connected by bolts; the lower connecting plate 11 and the upper connecting plate 111 respectively fixedly connected to the connection between the dehydrogenation reactor body 1 and the sliding sleeve 12 are used for connecting and fixing it, so that the sliding sleeve 12 can be connected and installed on the top of the dehydrogenation reactor body 1 to facilitate the replacement of the catalyst.
[0021] A support block 26 is fixedly connected to the inner wall of the outer filter cylinder 22, and corresponding connection grooves 251 are formed on both the sealing plate 25 and the support block 26, and the connection grooves 251 are connected by a connection block 252; the support block 26 fixedly connected to the inner wall of the outer filter cylinder 22 is used for connecting and fixing with the sealing plate 25, so that the connection block 252 can be connected to the connection groove 251 formed on the sealing plate 25, and the sealing plate 25 can be disassembled and installed on the inner sealing ring 21 and the outer filter cylinder 22.
[0022] A reinforcing plate 211 for reinforcement is fixedly connected to the inner wall of the outer filter cylinder 22, and a limiting rod 311 is fixedly connected to the inner wall of the dehydrogenation reactor body 1, and the limiting rod 311 penetrates through the inner support plate 13 and another slider 24; the reinforcing plate 211 is used for fixing the inner filter cylinder 221 and the outer filter cylinder 22 to ensure that the catalyst is evenly distributed in the inner sealing ring 21 and the outer filter cylinder 22, and the limiting rod 311 penetrates through the inner support plate 13 and the slider 24 to limit the slider 24 to ensure the horizontal up and down displacement of the outer filter cylinder 22, the inner sealing ring 21 and the central support column 2.
[0023] A number of inner filter cylinders 221 are equidistantly distributed, and connection holes 112 matching the outer wall of the outer filter cylinder 22 are formed on the lower connecting plate 11 and the upper connecting plate 111; the inner filter cylinders 221 are equidistantly distributed so that the catalyst can be evenly distributed in the dehydrogenation reactor body 1, and the connection holes 112 are used for connecting and fixing the lower connecting plate 11 and the upper connecting plate 111, so that the sliding sleeve 12 is installed and fixed above the dehydrogenation reactor body 1.
[0024] Working principle and usage process of the utility model: Through the high-temperature and high-pressure environment in the dehydrogenation reactor body 1, and with the catalyst between the inner sealing ring 21 and the outer filter cylinder 22, o-cyclohexyl cyclohexanone is catalyzed to be converted into o-phenylphenol. The several layers of inner filter cylinders 221 arranged in the outer filter cylinder 22 can separate the catalyst between the outer filter cylinder 22 and the inner sealing ring 21, ensuring that the catalyst is evenly distributed in the inner sealing ring 21 and the outer filter cylinder 22. After a certain time of conversion, when the catalyst needs to be replaced, at this time, the motor 3 can be used to drive the threaded rod 31. The threaded rod 31 is threadedly connected to the inner support plate 13, so that the inner support plate 13 can move upward under the rotation of the threaded rod 31. The central support column 2 and the outer filter cylinder 22 are both installed on the inner support plate 13, so that the central support column 2 and the outer filter cylinder 22 slide upward synchronously. Most of the remaining liquid in the catalyst can flow into the dehydrogenation reactor body 1 when the outer filter cylinder 22 moves upward continuously, and the sealing plate 25 always keeps the top position sealed. When the inner support plate 13 moves to the position where the connection hole 112 is opened, the inner support plate 13 closes the connection hole 112. At this time, the sealing plate 25 is separated from the inner sealing ring 21 and the outer filter cylinder 22, and then by rotating the central rod 32, the connection head 321 is separated from the installation groove 322, so that the inner sealing ring 21, the outer filter cylinder 22 and the central support column 2 can all be separated from the inner support plate 13 as a whole. When the device replaces the catalyst, it can avoid directly opening the dehydrogenation reactor body 1, which affects the high temperature and high pressure, so as to ensure the conversion effect of o-cyclohexyl cyclohexanone in the dehydrogenation reactor body 1. After the catalyst in the outer filter cylinder 22 and the inner sealing ring 21 is replaced, the outer filter cylinder 22 and the sealing plate 25 can be installed in sequence to reset them into the dehydrogenation reactor body 1 to continue catalyzing the conversion of o-cyclohexyl cyclohexanone.
Claims
1. A reactor for producing o-phenylphenol, comprising a dehydrogenation reactor body (1) and a sliding sleeve (12), characterized in that: The inner cavity of the dehydrogenation reactor body (1) is provided with an inner support plate (13), a central support column (2) is supported on the inner support plate (13), an inner sealing ring (21) is slidably connected to the outer wall of the central support column (2), an outer filter cartridge (22) is provided on the outer side of the inner sealing ring (21), a plurality of layers of inner filter cartridges (221) are provided inside the outer filter cartridge (22), an outer wall of one of the outer filter cartridges (22) is slidably connected to the inner wall of the sliding sleeve (12), a sealing plate (25) is installed on the top of the inner sealing ring (21) and the outer filter cartridge (22), and a connection between the inner sealing ring (21) and the central support column (2) is fixed. Two sliders (24) are fixedly connected, and a slide groove (23) matching the sliders (24) is provided on the outer wall of the central support column (2). A motor (3) is installed at the bottom end of the dehydrogenation reactor body (1), and a threaded rod (31) is fixedly connected to the driving end of the motor (3). The threaded rod (31) and the inner support plate (13) are threadedly connected. A central rod (32) is rotatably connected to the center of the central support column (2), and a connector (321) is fixedly connected to the bottom end of the central rod (32). A mounting groove (322) matching the connector (321) is provided on the inner support plate (13).
2. A reactor for producing o-phenylphenol according to claim 1, characterized in that: A lower connecting plate (11) and an upper connecting plate (111) are respectively fixedly connected at the connection points between the dehydrogenation reactor body (1) and the sliding sleeve (12), and the upper connecting plate (111) and the lower connecting plate (11) are connected by bolts.
3. A reactor for producing o-phenylphenol according to claim 1, characterized in that: A support block (26) is fixedly connected to the inner wall of the outer filter cartridge (22), and corresponding connection grooves (251) are provided on the sealing plate (25) and the support block (26), and the connection grooves (251) are connected via a connection block (252).
4. A reactor for producing o-phenylphenol according to claim 1, characterized in that: A reinforcing plate (211) for reinforcement is fixedly connected to the inner wall of the outer filter cartridge (22), and a limiting rod (311) is fixedly connected to the inner wall of the dehydrogenation reactor body (1), wherein the limiting rod (311) passes through the inner support plate (13) and the other slider (24).
5. A reactor for producing o-phenylphenol according to claim 2, characterized in that: A plurality of the inner filter cartridges (221) are distributed at equal distances, and the lower connecting plate (11) and the upper connecting plate (111) are provided with connecting holes (112) matching the outer wall of the outer filter cartridge (22).