A fully automatic hydrogenation reaction instrument

Abstract

The utility model relates to hydrogenation reaction technical field, especially, relate to a full -automatic hydrogenation reaction appearance, including the feeding system for supplying hydrogen gas raw material and liquid raw material, be located at the output of feeding system, the reaction system for reaction mixed raw material to the separation and collection system for processing reaction product are equipped with in the output of reaction system, be provided with multiple groups of shunt hole on the slow flow frame to communicate with the outside and slow flow channel, the feeding system supplies hydrogen gas raw material and liquid raw material to the reaction system, carries out sufficient reaction under the environment of high temperature and high pressure, finally through separation and collection system respectively to product and waste are respectively collected and handle, the two sides of thickness direction of slow flow discharger are open type setting, like this, after reducing the flow rate of waste gas by slow flow channel, can even waste gas be discharged through shunt hole, improve the mixing uniformity of waste gas and outside gas, thereby reduce the influence to outside environment when waste gas emission.

Description

Technical Field

[0001] This utility model relates to the field of hydrogenation reaction technology, and in particular to a fully automatic hydrogenation reactor. Background Technology

[0002] The fully automated hydrogenation apparatus enables hydrogen, liquid reactants, and solid catalysts to continuously flow and fully mix in a micro-reaction channel under high temperature and high pressure, completing the hydrogenation reaction. The entire process is continuous and automated, yielding a pure product solution after the reaction. However, it also generates excess hydrogen and other waste gases, which require neutralization or combustion to ensure environmental safety. To better neutralize the waste gases, efficient and uniform emission is needed at the discharge end to achieve better combustion. Therefore, a fully automated hydrogenation apparatus is urgently needed to solve these problems. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a fully automatic hydrogenation reactor to solve the problem of waste gas emission treatment after the reaction in the prior art.

[0004] To achieve the above and other related objectives, this utility model provides the following technical solution: A fully automated hydrogenation reactor includes: A feeding system for supplying hydrogen and liquid raw materials, a reaction system for reacting mixed raw materials, and a separation and collection system for processing reactants, located at the output end of the feeding system; The separation and collection system includes a gas-liquid separator. At the output end of the gas-liquid separator, there is a collection bottle for collecting liquid products and a slow-flow emitter for discharging waste gas. The inner wall of the slow-flow emitter is provided with a slow-flow frame. The outer wall of the slow-flow frame and the inner wall of the slow-flow emitter are spaced apart to form a slow-flow channel between the slow-flow frame and the slow-flow emitter. Multiple sets of diversion holes are provided on the slow-flow frame to connect the outside world with the slow-flow channel. The side wall of the slow-flow emitter is provided with an air inlet to connect the output end of the gas-liquid separator with the slow-flow channel.

[0005] To achieve the above technical solution, the feeding system supplies hydrogen and liquid raw materials to the reaction system, where they undergo a full reaction under high temperature and high pressure. Finally, the products and waste are collected and treated separately through a separation and collection system. The entire reaction process can achieve automated processing, reducing the need for manual operation.

[0006] In the separation and collection system, the gas-liquid separator depressurizes and separates the reaction mixture. The gas and liquid automatically separate due to their density difference and flow to the slow-flow emitter and collection bottle, respectively. When the exhaust gas enters the slow-flow emitter through the inlet, it flows along the slow-flow channel between the slow-flow frame and the slow-flow emitter, and flows out of the slow-flow emitter through multiple sets of diversion holes on the slow-flow frame. The two sides of the slow-flow emitter in the thickness direction are open. In this way, after the exhaust gas flow rate is reduced by the slow-flow channel, the exhaust gas can be discharged evenly through the diversion holes, which improves the mixing uniformity of the exhaust gas with the external gas and thus reduces the impact of exhaust gas emission on the external environment.

[0007] In one embodiment of the present invention, two sets of flow dividers are symmetrically arranged on the flow buffer, and the flow dividers are equally distributed on the flow dividers.

[0008] To achieve the above technical solution, the symmetrically arranged diversion walls enable the diversion holes to achieve a convection effect, thereby better mixing the exhaust gas with the air, and the equal arrangement can improve the uniformity of exhaust gas flow.

[0009] In one embodiment of the present invention, two sets of flow-dividing walls are symmetrically arranged on the flow-slowing frame, and a row of flow-dividing holes are equally arranged on the flow-dividing walls. A flow-dividing pipe is installed between the two sets of flow-dividing walls, and the two ends of the flow-dividing pipe are respectively connected to the flow-dividing holes. Furthermore, an exhaust hole is provided on the lower side of the flow-dividing pipe, and the exhaust holes are equally distributed along the length direction of the flow-dividing pipe.

[0010] To achieve the above technical solution, when the exhaust gas needs to be ignited, a row of diversion holes is evenly arranged on the diversion wall, and a diversion pipe is installed between the two diversion walls. The exhaust gas is guided by the diversion pipe and discharged from the exhaust hole on the lower side of the diversion pipe. This can improve the stability of the exhaust gas ignition and the uniformity of the exhaust gas emission, reduce the impact of the flame generated by the ignition on the surrounding environment, and avoid the situation where the flame is too large due to the traditional direct discharge through the pipe. In addition, the use of the slow-flow discharge device can also protect the operator and prevent accidental contact with the flame.

[0011] In one embodiment of the present invention, two sets of air inlets are symmetrically arranged on the side wall of the slow-flow emitter, and both sets of air inlets are located on the side wall of the slow-flow emitter away from the diversion hole. A three-way valve is also provided between the output end of the slow-flow emitter and the gas-liquid separator, and the two sets of air inlets are respectively connected to the three-way valve.

[0012] To achieve the above technical solution, a three-way valve is used to control the air intake action of two sets of air inlets. When it is necessary to accelerate the emission speed, both sets of air inlets can be opened simultaneously to improve emission efficiency. When it is necessary to reduce the emission speed, only one set of air inlets needs to be opened to meet the requirements of low-speed emission.

[0013] In one embodiment of the present invention, the feeding system includes a hydrogen cylinder for supplying hydrogen gas and a liquid raw material tank for supplying liquid raw materials. A pressure reducing valve and an MFC flow controller for controlling the gas flow rate are provided at the output end of the hydrogen cylinder. The output end of the MFC flow controller is connected to the input end of the reaction system. A high-precision plunger pump is provided at the output end of the liquid raw material tank. The output end of the high-precision plunger pump is connected to the input end of the reaction system.

[0014] To achieve the above technical solution, the hydrogen cylinder provides the gas source required for the reaction, the liquid raw material tank can store the reactant solution dissolved in the solvent, the MFC flow controller can accurately control the flow rate of hydrogen to ensure the stoichiometric ratio of the reaction, and the high-precision plunger pump can deliver the liquid reactants to the reaction system with high precision and high stability.

[0015] In one embodiment of the present invention, the reaction system includes a gas-liquid static mixer connected to the output end of an MFC flow controller and the output end of a high-precision plunger pump. A fixed-bed reactor is provided at the output end of the gas-liquid static mixer. The fixed-bed reactor is a jacketed fixed-bed reactor, and a refrigerant or a heating medium can be introduced into the jacket to facilitate temperature control of the reactor.

[0016] To achieve the above technical solution, the gas-liquid static mixer initially mixes hydrogen and liquid reactants to form a gas-liquid two-phase flow. The mixed material is heated to the set optimal reaction temperature by a coil heater, and then passes through a fixed-bed reactor filled with a solid catalyst (such as Pd / C). The material is subjected to high temperature and high pressure to fully contact the material and undergo a hydrogenation reaction.

[0017] In one embodiment of the present invention, the separation and collection system further includes an electronic back pressure valve disposed between the input end of the gas-liquid separator and the output end of the reaction system.

[0018] To achieve the above technical solution, the electronic back pressure valve precisely maintains the high-pressure environment required by the entire system by adjusting the outlet resistance, ensuring that hydrogen has sufficient solubility in the solvent.

[0019] In one embodiment of the present invention, a PLC control system is further included, which is connected to the feeding system, the reaction system, and the separation and collection system respectively.

[0020] To achieve the above technical solution, the PLC control system, as the "brain" of the entire system, integrates a touch screen, allowing users to set and monitor all parameters such as temperature, pressure, and liquid / gas flow rate with a single click, thus achieving fully automatic, safe, and repeatable operation.

[0021] As described above, the fully automatic hydrogenation reactor of this utility model has the following beneficial effects: When the waste gas enters the slow-flow emitter through the inlet, it flows along the slow-flow channel between the slow-flow frame and the slow-flow emitter, and flows out of the slow-flow emitter through multiple sets of diversion holes on the slow-flow frame. The two sides of the slow-flow emitter in the thickness direction are open, so that after the flow rate of the waste gas is reduced by the slow-flow channel, the waste gas can be discharged through the diversion holes evenly, improving the mixing uniformity of the waste gas with the external gas, thereby reducing the impact of waste gas discharge on the external environment. When the waste gas needs to be ignited, the diversion holes are evenly arranged in a row on the diversion wall, and a diversion pipe is installed between the two diversion walls. The diversion pipe guides the waste gas and discharges it from the exhaust hole on the lower side of the diversion pipe, reducing the impact of the flame generated by ignition on the surrounding environment and avoiding the situation of excessive flame caused by direct discharge through the pipe in the traditional way. Attached Figure Description

[0022] Figure 1 The diagram shown is a structural schematic of the fully automated hydrogenation reactor disclosed in this embodiment of the present invention.

[0023] Figure 2 The diagram shown is a schematic diagram of the slow-flow discharge device of the fully automatic hydrogenation reactor disclosed in this embodiment of the present invention.

[0024] Figure 3 The diagram shown is a schematic diagram of the flow divider structure of a specific embodiment 1 of the fully automatic hydrogenation reactor disclosed in this utility model.

[0025] Figure 4 The diagram shown is a schematic diagram of the flow divider of a specific embodiment 2 of the fully automatic hydrogenation reactor disclosed in this utility model.

[0026] Figure 5 The diagram shown is a schematic diagram of the diversion tube structure of a specific embodiment 2 of the fully automatic hydrogenation reactor disclosed in this utility model.

[0027] Explanation of the technical feature labels in the attached drawings: 1. Gas-liquid separator; 2. Collection bottle; 3. Slow-flow discharge device; 4. Slow-flow rack; 5. Slow-flow channel; 6. Diverter orifice; 7. Inlet; 8. Diverter pipe; 9. Exhaust port; 10. Three-way valve; 11. Hydrogen cylinder; 12. Liquid feed tank; 13. MFC flow controller; 14. High-precision plunger pump; 15. Gas-liquid static mixer; 16. Fixed bed reactor; 17. Diverter wall; 18. Electronic back pressure valve. Detailed Implementation

[0028] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0029] Please see Figure 1 It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention. Specific Implementation Example 1: Please see Figures 1 to 3 This utility model provides a fully automatic hydrogenation reactor, including a feeding system for supplying hydrogen and liquid raw materials, a reaction system for reacting the mixed raw materials at the output end of the feeding system, and a separation and collection system for processing the reactants at the output end of the reaction system. The feeding system supplies hydrogen and liquid raw materials into the reaction system, where they undergo a full reaction under high temperature and high pressure. Finally, the separation and collection system collects and processes the products and waste materials separately. The entire reaction process can achieve automated processing, reducing the need for manual operation.

[0031] The separation and collection system includes a gas-liquid separator 1. At the output end of the gas-liquid separator 1, there is a collection bottle 2 for collecting liquid products and a slow-flow emitter 3 for discharging waste gas. The gas-liquid separator 1 depressurizes and separates the mixture after the reaction. The gas and liquid are automatically separated due to the density difference and flow to the slow-flow emitter 3 and the collection bottle 2 respectively. The inner wall of the slow-flow emitter 3 is provided with a slow-flow frame 4. The outer wall of the slow-flow frame 4 and the inner wall of the slow-flow emitter 3 are spaced apart to form a slow-flow channel 5 between the slow-flow frame 4 and the slow-flow emitter 3. Multiple sets of diversion holes 6 are provided on the slow-flow frame 4 to connect the outside world with the slow-flow channel 5. The side wall of the slow-flow emitter 3 is provided with an air inlet 7 to connect the output end of the gas-liquid separator 1 with the slow-flow channel 5.

[0032] When the exhaust gas enters the slow-flow emitter 3 through the inlet 7, it flows along the slow-flow channel 5 between the slow-flow frame 4 and the slow-flow emitter 3, and flows out of the slow-flow emitter 3 through multiple sets of diversion holes 6 provided on the slow-flow frame 4. The two sides of the slow-flow emitter 3 in the thickness direction are open. In this way, after the flow rate of the exhaust gas is slowed down by the slow-flow channel 5, the exhaust gas can be discharged through the diversion holes 6 to achieve uniformity, improve the mixing uniformity of the exhaust gas and the external gas, and thus reduce the impact of exhaust gas emission on the external environment.

[0033] Two sets of diversion walls 17 are symmetrically arranged on the flow buffer 4. The diversion holes 6 are evenly arranged on the diversion walls 17. The symmetrical arrangement of the diversion walls 17 enables the diversion holes 6 to achieve a convection effect, thereby better mixing the exhaust gas with the air. Furthermore, the even arrangement can improve the uniformity of the exhaust gas flow.

[0034] Two sets of air inlets 7 are symmetrically arranged on the side wall of the slow-flow emitter 3. Both sets of air inlets 7 are located on the side wall of the slow-flow emitter 3 away from the diversion hole 6. A three-way valve 10 is also provided between the slow-flow emitter 3 and the output end of the gas-liquid separator 1. The two sets of air inlets 7 are respectively connected to the three-way valve 10. The three-way valve 10 is used to control the air intake action of the two sets of air inlets 7. When it is necessary to speed up the emission speed, both sets of air inlets 7 can be allowed to intake air at the same time, thereby improving the emission efficiency. When it is necessary to reduce the emission speed, only one set of air inlets 7 needs to be opened to achieve the requirement of low-speed emission.

[0035] The feeding system includes a hydrogen cylinder 11 for supplying hydrogen gas and a liquid raw material tank 12 for supplying liquid raw materials. A pressure reducing valve and an MFC flow controller 13 for controlling the gas flow rate are installed at the output end of the hydrogen cylinder 11. The output end of the MFC flow controller 13 is connected to the input end of the reaction system. A high-precision plunger pump 14 is installed at the output end of the liquid raw material tank 12. The output end of the high-precision plunger pump 14 is connected to the input end of the reaction system. The hydrogen cylinder 11 provides the gas source required for the reaction, the liquid raw material tank 12 can contain the reactant solution dissolved in the solvent, the MFC flow controller 13 can accurately control the flow rate of hydrogen gas to ensure the stoichiometric ratio of the reaction, and the high-precision plunger pump 14 can deliver the liquid reactants to the reaction system with high precision and high stability.

[0036] The reaction system includes a gas-liquid static mixer 15 connected to the output of an MFC flow controller 13 and a high-precision plunger pump 14. A fixed-bed reactor 16 is installed at the output of the gas-liquid static mixer 15. The fixed-bed reactor is a jacketed fixed-bed reactor. A coolant or a hot medium can be introduced into the jacket to facilitate temperature control of the reactor. The materials are fully contacted and hydrogenation reaction occurs under high temperature and high pressure. The gas-liquid static mixer 15 initially mixes hydrogen and liquid reactants to form a gas-liquid two-phase flow.

[0037] The separation and collection system also includes an electronic back pressure valve 18 located between the input end of the gas-liquid separator 1 and the output end of the reaction system. The electronic back pressure valve 18 precisely maintains the high pressure environment required by the entire system by adjusting the outlet resistance, ensuring that hydrogen has sufficient solubility in the solvent.

[0038] It also includes a PLC control system, which is electrically connected to the feeding system, reaction system, and separation and collection system. As the "brain" of the entire system, the PLC control system allows users to set and monitor all parameters such as temperature, pressure, and liquid / gas flow rate with one click through an integrated touch screen, achieving fully automatic, safe, and repeatable operation. Specific Implementation Example 2: Please see Figure 1 , Figures 4 to 5 The parts that are the same as in Specific Embodiment 1 will not be repeated. The difference is that two sets of diversion walls 17 are symmetrically arranged on the flow-slowing frame 4. Diversion holes 6 are evenly arranged in a row on the diversion walls 17. A diversion pipe 8 is installed between the two sets of diversion walls 17. The two ends of the diversion pipe 8 are respectively connected to the diversion holes 6. An exhaust hole 9 is provided on the lower side of the diversion pipe 8, and the exhaust hole 9 is evenly distributed along the length of the diversion pipe 8. When it is necessary to ignite the exhaust gas, the diversion holes 6 are evenly arranged in a row on the diversion walls 17, and the diversion pipe 8 is installed between the two sets of diversion walls 17. The exhaust gas is guided by the diversion pipe 8 and discharged from the exhaust hole 9 on the lower side of the diversion pipe 8. This can improve the stability of the exhaust gas during ignition and the uniformity of the exhaust gas emission, reduce the impact of the flame generated by ignition on the surrounding environment, and avoid the situation where the flame is too large due to the traditional direct discharge through the pipe. In addition, the use of the flow-slowing emitter 3 can also protect the operator and prevent accidental contact with the flame.

[0040] When exhaust gas enters the slow-flow emitter 3 through the inlet 7, it flows along the slow-flow channel 5 between the slow-flow frame 4 and the slow-flow emitter 3, and flows out of the slow-flow emitter 3 through multiple sets of diversion holes 6 provided on the slow-flow frame 4. The two sides of the slow-flow emitter 3 in the thickness direction are open. In this way, after the flow velocity of the exhaust gas is reduced by the slow-flow channel 5, the exhaust gas can be discharged evenly through the diversion holes 6, which improves the mixing uniformity of the exhaust gas with the external gas, thereby reducing the impact of exhaust gas emission on the external environment. When the exhaust gas needs to be ignited, the diversion holes 6 are evenly arranged in a row on the diversion wall 17, and a diversion pipe 8 is installed between the two diversion walls 17. The diversion pipe 8 is used to guide the exhaust gas and discharge it from the exhaust hole 9 on the lower side of the diversion pipe 8, reducing the impact of the flame generated by ignition on the surrounding environment and avoiding the situation of excessive flame caused by direct discharge through pipes in the traditional way.

[0041] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A fully automated hydrogenation reactor, characterized in that, include: A feeding system for supplying hydrogen and liquid raw materials, a reaction system for reacting mixed raw materials, and a separation and collection system for processing reactants, located at the output end of the feeding system; The separation and collection system includes a gas-liquid separator. At the output end of the gas-liquid separator, there is a collection bottle for collecting liquid products and a slow-flow emitter for discharging waste gas. The inner wall of the slow-flow emitter is provided with a slow-flow frame. The outer wall of the slow-flow frame and the inner wall of the slow-flow emitter are spaced apart to form a slow-flow channel between the slow-flow frame and the slow-flow emitter. Multiple sets of diversion holes are provided on the slow-flow frame to connect the outside world with the slow-flow channel. The side wall of the slow-flow emitter is provided with an air inlet to connect the output end of the gas-liquid separator with the slow-flow channel.

2. The fully automated hydrogenation reactor according to claim 1, characterized in that, The flow-slowing frame has two sets of flow-dividing walls symmetrically arranged, and the flow-dividing holes are evenly distributed on the flow-dividing walls.

3. The fully automated hydrogenation reactor according to claim 1, characterized in that, The flow-slowing frame is symmetrically provided with two sets of flow-dividing walls. The flow-dividing holes are evenly arranged in a row on the flow-dividing walls. A flow-dividing pipe is installed between the two sets of flow-dividing walls. The two ends of the flow-dividing pipe are respectively connected to the flow-dividing holes. Furthermore, an exhaust hole is provided on the upper side of the flow-dividing pipe, and the exhaust holes are evenly distributed along the length of the flow-dividing pipe.

4. The fully automated hydrogenation reactor according to claim 1, characterized in that, Two sets of air inlets are symmetrically arranged on the side wall of the slow-flow emitter. Both sets of air inlets are located on the side wall of the slow-flow emitter away from the diversion hole. A three-way valve is also provided between the output end of the slow-flow emitter and the gas-liquid separator. The two sets of air inlets are respectively connected to the three-way valve.

5. The fully automated hydrogenation reactor according to claim 1, characterized in that, The feeding system includes a hydrogen cylinder for supplying hydrogen gas and a liquid raw material tank for supplying liquid raw materials. A pressure reducing valve and an MFC flow controller for controlling the gas flow are provided at the output end of the hydrogen cylinder. The output end of the MFC flow controller is connected to the input end of the reaction system. A high-precision plunger pump is provided at the output end of the liquid raw material tank. The output end of the high-precision plunger pump is connected to the input end of the reaction system.

6. The fully automated hydrogenation reactor according to claim 1, characterized in that, The reaction system includes a gas-liquid static mixer connected to the output of an MFC flow controller and the output of a high-precision plunger pump. A fixed-bed reactor is installed at the output of the gas-liquid static mixer. The fixed-bed reactor is a jacketed fixed-bed reactor, and a refrigerant or a heating medium can be introduced into the jacket to facilitate temperature control of the reactor.

7. The fully automated hydrogenation reactor according to claim 1, characterized in that, The separation and collection system also includes an electronic back pressure valve located between the input end of the gas-liquid separator and the output end of the reaction system.

8. The fully automated hydrogenation reactor according to any one of claims 1-7, characterized in that, It also includes a PLC control system, which is electrically connected to the feeding system, the reaction system, and the separation and collection system.

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