Material separation device in process of preparing cyclopentane by hydrogenation of dicyclopentadiene
By designing a material separation device and utilizing temperature and pressure control as well as condensation and washing technology, the problem of low cyclopentane purity in traditional hydrogenation processes has been solved, achieving efficient separation and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 吴忠领航生物药业科技有限公司
- Filing Date
- 2025-04-28
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional hydrogenation processes involve numerous side reactions, leading to reduced purity of cyclopentane and difficulty in efficient separation, thus affecting production efficiency and quality.
Design a material separation device for the preparation of cyclopentane by hydrogenation of dicyclopentadiene, including a hydrogenation kettle, a distillation kettle and a condenser. By controlling the temperature and pressure, components with different boiling points are separated, and washing is carried out using the condenser and reflux pipe to achieve efficient separation of cyclopentane and impurities.
It improved the production efficiency and quality of cyclopentane, achieved efficient and precise material separation, and enhanced the purity and concentration of cyclopentane.
Smart Images
Figure CN224221334U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of cyclopentane preparation apparatus, and more specifically, it relates to a material separation device in the process of preparing cyclopentane by hydrogenation of dicyclopentadiene. Background Technology
[0002] Cyclopentane, as a crucial organic compound and intermediate, plays an irreplaceable and key role in numerous fields. In pharmaceutical synthesis, it is an important component of the structure of many drug molecules, providing a solid foundation for drug research and production. In pesticide production, cyclopentane derivatives can serve as highly efficient pesticide intermediates, helping to improve pesticide efficacy and safety. In fragrance formulation, its unique chemical structure can add rich layers and lasting aroma to fragrances. In the petroleum processing industry, cyclopentane plays an important role in improving the performance of petroleum products, such as enhancing the viscosity-temperature properties of lubricating oils.
[0003] Based on the above, the inventors have discovered the following problems: Traditional hydrogenation processes involve a large number of side reactions, which reduce the purity of the target product cyclopentane and make it difficult to efficiently separate cyclopentane from complex mixtures, thus seriously affecting the yield efficiency and quality of cyclopentane.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a material separation device in the process of hydrogenating dicyclopentadiene to prepare cyclopentane, in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose and effectiveness of this utility model's material separation device in the process of hydrogenating dicyclopentadiene to prepare cyclopentane are achieved by the following specific technical means:
[0006] A material separation device for the hydrogenation of dicyclopentadiene to cyclopentane includes a base plate. A raw material storage tank is installed on one side of the top of the base plate. A first feed pump is connected to one side of the raw material storage tank. One end of the first feed pump is connected to a first feed pipe. One end of the first feed pipe is connected to a hydrogenation reactor. A feed pipe is installed at the top of the hydrogenation reactor. An air inlet pipe is installed on one side of the hydrogenation reactor. A stirring mechanism is installed inside the hydrogenation reactor. An intermediate storage tank is installed at the bottom of the hydrogenation reactor. A discharge pipe is installed at the bottom of the hydrogenation reactor. The discharge pipe is connected to the intermediate storage tank, and a solenoid valve is installed on the discharge pipe. The intermediate storage tank is installed on the top of the base plate. A second feed pump is connected to one side of the intermediate storage tank. One end of the second feed pump is connected to a second feed pipe. One end of the second feed pipe is connected to a distillation vessel. A mounting base is installed on the bottom surface of the distillation vessel. Several heating tubes are installed inside the mounting base. The mounting base is installed on the top of the base plate by a fixing bracket. A discharge pipe is connected to the bottom of the distillation vessel. One end of the discharge pipe is connected to the finished product storage tank.
[0007] Furthermore, the stirring mechanism includes a motor installed on the top of the hydrogenation reactor, and the output shaft of the motor passes through the hydrogenation reactor and is connected to a stirring rod.
[0008] Furthermore, a temperature sensor and a pressure sensor are installed on the inner wall of the distillation vessel.
[0009] Furthermore, a condenser is installed on the top of the distillation vessel, and an outlet pipe is installed on the top of the distillation vessel. One end of the outlet pipe is connected to the condenser, and a discharge pipe is installed on one side of the condenser. A reflux pipe is connected to the bottom of the discharge pipe, and one end of the reflux pipe passes through the distillation vessel and is connected to a spray pipe. The spray pipe is installed on the top of the inner wall of the distillation vessel, and an exhaust pipe is connected to one side of the discharge pipe.
[0010] Furthermore, the interior of the distillation vessel is provided with a packing layer.
[0011] Furthermore, a valve is installed on the discharge pipe.
[0012] Furthermore, a controller is mounted on the top of the base plate.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This device raises the temperature inside the distillation vessel by turning on the heating element, causing the mixture to vaporize. As the temperature rises, components with different boiling points begin to separate within the distillation vessel. Lighter components (such as unreacted hydrogen and small amounts of low-boiling-point impurities) rise from the top and enter the outlet pipe. After being condensed by the condenser, some of the condensate is sprayed out through the reflux pipe into the spray pipe to wash the inside of the distillation vessel, while the remainder is discharged through the exhaust pipe. Heavier components, such as cyclopentane, gradually accumulate in the distillation vessel. When a certain purity and concentration are reached, the valve is opened, allowing the cyclopentane to enter the finished product storage tank through the discharge pipe. This process efficiently and accurately separates cyclopentane from other impurities, improving the production efficiency and quality of cyclopentane. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of a material separation device in the process of preparing cyclopentane by hydrogenation of dicyclopentadiene according to this utility model.
[0016] Figure 2 This is a schematic diagram of the hydrogenation vessel, a material separation device in the process of hydrogenating dicyclopentadiene to prepare cyclopentane according to this utility model.
[0017] Figure 3 This is a schematic diagram of the distillation vessel of a material separation device in the process of preparing cyclopentane by hydrogenation of dicyclopentadiene according to this utility model.
[0018] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0019] 1. Base plate; 2. Raw material storage tank; 3. First feed pump; 4. First feed pipe; 5. Hydrogenation kettle; 6. Feed pipe; 7. Gas inlet pipe; 8. Intermediate storage tank; 9. Second feed pump; 10. Second feed pipe; 11. Distillation kettle; 12. Mounting base; 13. Discharge pipe; 14. Finished product storage tank; 15. Controller; 16. Motor; 17. Stirring rod; 18. Discharge pipe; 19. Solenoid valve; 20. Heating tube; 21. Temperature sensor; 22. Pressure sensor; 23. Packing layer; 24. Condenser; 25. Gas outlet pipe; 26. Discharge pipe; 27. Reflux pipe; 28. Spray pipe; 29. Exhaust pipe; 30. Valve. Detailed Implementation
[0020] 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.
[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," 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 utility model 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 utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Example:
[0024] As attached Figure 1 To be continued Figure 3 As shown:
[0025] This utility model provides a material separation device in the process of hydrogenating dicyclopentadiene to prepare cyclopentane, including a base plate 1, a raw material storage tank 2 installed on one side of the top of the base plate 1, a first feed pump 3 connected to one side of the raw material storage tank 2, a first feed pipe 4 connected to one end of the first feed pump 3, a hydrogenation reactor 5 connected to one end of the first feed pipe 4, an inlet pipe 6 installed on the top of the hydrogenation reactor 5, an air inlet pipe 7 installed on one side of the hydrogenation reactor 5, a stirring mechanism inside the hydrogenation reactor 5, an intermediate storage tank 8 installed at the bottom of the hydrogenation reactor 5, and a discharge pipe 18 installed at the bottom of the hydrogenation reactor 5. 8 is connected to the intermediate storage tank 8. A solenoid valve 19 is installed on the discharge pipe 18. The intermediate storage tank 8 is installed on the top of the base plate 1. A second feed pump 9 is connected to one side of the intermediate storage tank 8. A second feed pipe 10 is connected to one end of the second feed pump 9. A distillation kettle 11 is connected to one end of the second feed pipe 10. A mounting base 12 is installed on the bottom surface of the distillation kettle 11. Several heating tubes 20 are installed inside the mounting base 12. The mounting base 12 is installed on the top of the base plate 1 by a fixing bracket. A discharge pipe 13 is connected to the bottom of the distillation kettle 11. One end of the discharge pipe 13 is connected to the finished product storage tank 14.
[0026] The stirring mechanism includes a motor 16 installed on the top of the hydrogenation vessel 5. The output shaft of the motor 16 passes through the hydrogenation vessel 5 and is connected to a stirring rod 17. By using the motor 16 and the stirring rod 17 together, the motor 16 is turned on, and the motor 16 drives the stirring rod 17 to rotate, thereby making the material and hydrogen fully mixed and improving the reaction efficiency.
[0027] The inner wall of the distillation vessel 11 is equipped with a temperature sensor 21 and a pressure sensor 22. Through the combined use of the temperature sensor 21 and the pressure sensor 22, the temperature and pressure changes inside the distillation vessel 11 can be accurately reflected.
[0028] The distillation vessel 11 is equipped with a condenser 24 at its top and a gas outlet pipe 25 at its top. One end of the gas outlet pipe 25 is connected to the condenser 24. A discharge pipe 26 is installed on one side of the condenser 24, and a reflux pipe 27 is connected to the bottom of the discharge pipe 26. One end of the reflux pipe 27 passes through the distillation vessel 11 and is connected to a spray pipe 28. The spray pipe 28 is installed on the top of the inner wall of the distillation vessel 11. An exhaust pipe 29 is connected to one side of the discharge pipe 26, and the exhaust gas passes through the condenser 24 and the reflux pipe 27. The combined use of pipe 27, spray pipe 28 and exhaust pipe 29 involves turning on heating pipe 20, gradually increasing the temperature inside distillation vessel 11, causing the mixture to begin to vaporize. As the temperature rises, components with different boiling points begin to separate inside distillation vessel 11. Lighter components (such as unreacted hydrogen, a small amount of low-boiling-point impurities, etc.) rise from the top and enter exhaust pipe 25. After being condensed by condenser 24, part of the condensate enters spray pipe 28 through reflux pipe 27 and is sprayed out to wash inside distillation vessel 11. The remainder is discharged through exhaust pipe 29.
[0029] The distillation vessel 11 is equipped with a packing layer 23 inside.
[0030] A valve 30 is installed on the discharge pipe 13.
[0031] The controller 15 is installed on the top of the base plate 1.
[0032] The specific usage and function of this embodiment are as follows:
[0033] First, check the integrity of the equipment. Only after confirming everything is in order can it be used. Add monocyclopentadiene to the raw material storage tank 2. Simultaneously prepare the catalyst and the new catalyst carrier. Turn on the first feed pump 3. Monocyclopentadiene enters the hydrogenation reactor 5 through the first feed pipe 4. Add the catalyst and the new catalyst carrier through the feed pipe 6. Slowly introduce hydrogen through the gas inlet pipe 7, controlling the rate of introduction to ensure uniform distribution of hydrogen in the material for catalytic hydrogenation. Simultaneously, turn on the motor 16, which drives the stirring rod 17 to rotate, ensuring thorough mixing of the material and hydrogen and improving reaction efficiency. After the hydrogenation reaction is complete, open the solenoid valve 19. The mixture enters the intermediate storage tank 8 through the discharge pipe 18 and is then fed by the second feed pump. 9. The mixture is fed into the distillation vessel 11, and the heating tube 20 is turned on. The temperature inside the distillation vessel 11 gradually increases, causing the mixture to begin to vaporize. As the temperature rises, components with different boiling points begin to separate inside the distillation vessel 11. Lighter components (such as unreacted hydrogen, a small amount of low-boiling-point impurities, etc.) rise from the top and enter the gas outlet pipe 25. After being condensed by the condenser 24, part of the condensate enters the spray pipe 28 through the reflux pipe 27 and is sprayed out to wash the inside of the distillation vessel 11. The rest is discharged through the exhaust pipe 29. Heavier components such as cyclopentane gradually accumulate inside the distillation vessel 11. When a certain purity and concentration are reached, the valve 30 is opened, allowing it to enter the finished product storage tank 14 through the discharge pipe 13.
[0034] 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 material separation device for the hydrogenation of dicyclopentadiene to cyclopentane, comprising a base plate (1), characterized in that: A raw material storage tank (2) is installed on one side of the top of the base plate (1). A first feed pump (3) is connected to one side of the raw material storage tank (2). One end of the first feed pump (3) is connected to a first feed pipe (4). One end of the first feed pipe (4) is connected to a hydrogenation reactor (5). A feed pipe (6) is installed on the top of the hydrogenation reactor (5). An air inlet pipe (7) is installed on one side of the hydrogenation reactor (5). A stirring mechanism is provided inside the hydrogenation reactor (5). An intermediate storage tank (8) is installed at the bottom of the hydrogenation reactor (5). A discharge pipe (18) is installed at the bottom of the hydrogenation reactor (5). The discharge pipe (18) is connected to the intermediate storage tank (8). A solenoid valve (19) is installed on the top of the intermediate storage tank (8). The intermediate storage tank (8) is installed on the top of the base plate (1). A second feed pump (9) is connected to one side of the intermediate storage tank (8). A second feed pipe (10) is connected to one end of the second feed pump (9). A distillation kettle (11) is connected to one end of the second feed pipe (10). A mounting base (12) is installed on the bottom surface of the distillation kettle (11). Several heating tubes (20) are installed inside the mounting base (12). The mounting base (12) is installed on the top of the base plate (1) by a fixing bracket. A discharge pipe (13) is connected to the bottom of the distillation kettle (11). A finished product storage tank (14) is connected to one end of the discharge pipe (13).
2. The material separation device for the hydrogenation of dicyclopentadiene to cyclopentane as described in claim 1, characterized in that: The stirring mechanism includes a motor (16) installed on the top of the hydrogenation vessel (5), and the output shaft of the motor (16) passes through the hydrogenation vessel (5) and is connected to a stirring rod (17).
3. The material separation device for the hydrogenation of dicyclopentadiene to cyclopentane as described in claim 1, characterized in that: The inner wall of the distillation vessel (11) is equipped with a temperature sensor (21) and a pressure sensor (22).
4. The material separation device for the hydrogenation of dicyclopentadiene to cyclopentane as described in claim 1, characterized in that: A condenser (24) is installed on the top of the distillation vessel (11), and an outlet pipe (25) is installed on the top of the distillation vessel (11). One end of the outlet pipe (25) is connected to the condenser (24). A discharge pipe (26) is installed on one side of the condenser (24). A reflux pipe (27) is connected to the bottom of the discharge pipe (26). One end of the reflux pipe (27) passes through the distillation vessel (11) and is connected to a spray pipe (28). The spray pipe (28) is installed on the top of the inner wall of the distillation vessel (11). An exhaust pipe (29) is connected to one side of the discharge pipe (26).
5. The material separation device for the hydrogenation of dicyclopentadiene to cyclopentane as described in claim 1, characterized in that: The interior of the distillation vessel (11) is provided with a packing layer (23).
6. The material separation device for the hydrogenation of dicyclopentadiene to cyclopentane as described in claim 1, characterized in that: A valve (30) is installed on the discharge pipe (13).
7. The material separation device for the hydrogenation of dicyclopentadiene to cyclopentane as described in claim 1, characterized in that: A controller (15) is mounted on the top of the base plate (1).