Micro packed bed catalytic hydrogenation reaction device

Abstract

The utility model discloses a kind of micro packed bed catalytic hydrogenation reaction devices, it is related to micro packed bed reactor technical field, including micro packed bed reactor, the middle part of micro packed bed reactor is equipped with first connecting plate, the side of first connecting plate is equipped with the feeding mechanism for carrying out quantitative hydrogenation, the other side of first connecting plate is equipped with the material collecting mechanism for carrying out hydrogen collection, namely reuse. Through the feeding mechanism and material collecting mechanism set, it is convenient to add hydrogen quantitatively, to facilitate the control of reaction, and it is convenient to collect and reuse hydrogen, to reduce the loss of hydrogen, improve reaction efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of micro-packed bed reactors, and specifically to a micro-packed bed catalytic hydrogenation reactor. Background Technology

[0002] Hydrogenation processes are widely used in petroleum and petrochemical, fine chemical, pharmaceutical, environmental and food industries.

[0003] However, it is inconvenient to collect unreacted hydrogen after the hydrogenation reactor is used. Direct discharge in the presence of ignition sources or high temperatures may cause fires or explosions, and quantitative hydrogenation is also inconvenient. Therefore, those skilled in the art have provided a micro-packed bed catalytic hydrogenation reactor to solve the problems mentioned in the background art. Utility Model Content

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A micro-packed bed catalytic hydrogenation reactor includes a micro-packed bed reactor. A first connecting plate is installed in the middle of the micro-packed bed reactor. A feeding mechanism for quantitative hydrogen addition is installed on one side of the first connecting plate, and a collecting mechanism for hydrogen collection and reuse is installed on the other side of the first connecting plate.

[0006] Preferably, the feeding mechanism includes a first hydrogen storage cylinder, the outer side of the middle part of the first hydrogen storage cylinder is fixedly installed on a first connecting plate, and a feeding pipe is connected to one side of the bottom end of the first hydrogen storage cylinder. One end of the feeding pipe is connected to the bottom of the micro-packed bed reactor.

[0007] Preferably, a feeding pipe is connected to the other side of the bottom of the first hydrogen storage cylinder, and a hydrogen supply device for supplying hydrogen is connected to one end of the feeding pipe. A movable groove is opened at the top of the first hydrogen storage cylinder, and an installation rod is movably installed in the movable groove. A second connecting plate is fixedly installed at the bottom of the installation rod, and a rubber stopper is fixedly installed at the bottom of the second connecting plate.

[0008] Preferably, the receiving mechanism includes a second hydrogen storage cylinder, the outer side of the middle part of the second hydrogen storage cylinder is fixedly installed on the first connecting plate, and a receiving pipe is connected to the top of the second hydrogen storage cylinder. One end of the receiving pipe is connected to one side of the top of the micro packed bed reactor.

[0009] Preferably, a first connecting pipe is installed at the bottom of the second hydrogen storage cylinder, a gas pump is installed at one end of the first connecting pipe, and a second connecting pipe is installed at the output port of the gas pump. One end of the second connecting pipe is connected to one side of the feeding pipe.

[0010] Preferably, a first solenoid valve is installed on the feeding pipe, and a second solenoid valve is installed on the feeding pipe, with the second solenoid valve positioned between the second connecting pipe and the first hydrogen storage cylinder.

[0011] Preferably, a third solenoid valve is installed on the receiving pipe, and a detector for detecting hydrogen concentration is installed on the receiving pipe. The detector is located between the third solenoid valve and the second hydrogen storage tank. A fourth solenoid valve is installed on the connecting pipe, and the fourth solenoid valve is located between the gas pump and the second hydrogen storage tank.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The feeding and receiving mechanisms facilitate the flow of hydrogen into the first hydrogen storage tank by closing the first solenoid valve and opening the second solenoid valve. Once full, the second solenoid valve is closed, and the first solenoid valve is opened, allowing the installation rod to move within the movable groove. This causes the rubber stopper to compress the hydrogen, thus metering it into the micro-packed bed reactor for reaction. After hydrogen addition, the second solenoid valve is closed to allow the reaction to proceed. After the reaction is complete, the third solenoid valve is opened, and the fourth solenoid valve is closed, allowing hydrogen to be collected into the second hydrogen storage tank via the receiving pipe. The process continues until the hydrogen concentration decreases as observed by the gauge, at which point the third solenoid valve is closed, and the fourth and second solenoid valves are opened again. This allows the hydrogen from the second storage tank to be pumped into the first storage tank via a gas pump. This allows for metered hydrogen addition, facilitating reaction control and enabling the collection and reuse of hydrogen, thereby reducing hydrogen loss and improving reaction efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a micro-packed bed catalytic hydrogenation reactor according to an embodiment of this utility model;

[0015] Figure 2 This is a schematic diagram of the feeding mechanism of a micro-packed bed catalytic hydrogenation reactor according to an embodiment of this utility model;

[0016] Figure 3 This is a schematic diagram of the material receiving mechanism of a micro-packed bed catalytic hydrogenation reactor according to an embodiment of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the first connecting pipe and the second connecting pipe of a micro-packed bed catalytic hydrogenation reactor according to an embodiment of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1. Micro-packed bed reactor; 2. First connecting plate; 3. First hydrogen storage tank; 4. Feed pipe; 5. Feeding pipe; 6. Movable trough; 7. Mounting rod; 8. Second connecting plate; 9. Rubber stopper; 10. Second hydrogen storage tank; 11. Receiving pipe; 12. First connecting pipe; 13. Air pump; 14. Second connecting pipe; 15. First solenoid valve; 16. Second solenoid valve; 17. Third solenoid valve; 18. Detection gauge; 19. Fourth solenoid valve. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to embodiments:

[0020] This utility model discloses a micro-packed bed catalytic hydrogenation reactor. (Refer to...) Figure 1-4 The reactor includes a micro-filled bed reactor 1, a first connecting plate 2 installed in the middle of the micro-filled bed reactor 1, a feeding mechanism for quantitative hydrogen addition installed on one side of the first connecting plate 2, and a receiving mechanism for hydrogen collection and reuse installed on the other side of the first connecting plate 2.

[0021] By adopting the above technical solution, this utility model, through the provided feeding and receiving mechanisms, facilitates the entry of hydrogen into the first hydrogen storage cylinder 3 by closing the first solenoid valve 15 and opening the second solenoid valve 16. After filling, the second solenoid valve 16 is closed and the first solenoid valve 15 is opened, allowing the installation rod 7 to move within the movable groove 6, thereby enabling the rubber stopper 9 to compress the hydrogen and quantitatively introduce it into the micro-packed bed reactor 1 for reaction. After hydrogenation is completed, the second solenoid valve 16 is closed to allow the reaction to proceed. After the reaction is completed, the third solenoid valve 17 is opened and the fourth solenoid valve 19 is closed, facilitating the collection of hydrogen into the second hydrogen storage cylinder 10 through the receiving pipe 11. The hydrogen concentration is then reduced as observed by the detection gauge 18, after which the third solenoid valve 17 is closed, and the fourth solenoid valve 19 and the second solenoid valve 16 are opened, facilitating the introduction of hydrogen from the second hydrogen storage cylinder 10 into the first hydrogen storage cylinder 3 via the gas pump 13. It facilitates the quantitative addition of hydrogen, thereby making it easier to control the reaction, and also facilitates the collection and reuse of hydrogen, thus reducing hydrogen loss and improving reaction efficiency.

[0022] Reference Figure 1-4 The feeding mechanism includes a first hydrogen storage cylinder 3. The outer side of the middle part of the first hydrogen storage cylinder 3 is fixedly installed on the first connecting plate 2. A feeding pipe 4 is connected to one side of the bottom end of the first hydrogen storage cylinder 3. One end of the feeding pipe 4 is connected to the bottom of the micro packed bed reactor 1.

[0023] By adopting the above technical solution, the feeding pipe 4 allows for easy closing of the second solenoid valve 16 and opening of the first solenoid valve 15. This enables the mounting rod 7 to move within the movable groove 6, allowing the rubber stopper 9 to compress hydrogen gas. Consequently, hydrogen gas can be quantitatively fed into the micro-packed bed reactor 1 through the feeding pipe 4 for reaction.

[0024] Reference Figure 1-4 A feeding pipe 5 is connected to the other side of the bottom of the first hydrogen storage cylinder 3. One end of the feeding pipe 5 is connected to a hydrogen supply device for providing hydrogen. A movable groove 6 is opened at the top of the first hydrogen storage cylinder 3. An installation rod 7 is movably installed in the movable groove 6. A second connecting plate 8 is fixedly installed at the bottom of the installation rod 7. A rubber stopper 9 is fixedly installed at the bottom of the second connecting plate 8.

[0025] By adopting the above technical solution, the rubber stopper 9 is moved in the movable groove 6 by the mounting rod 7, thereby enabling the rubber stopper 9 to compress hydrogen gas, and thus enabling the hydrogen gas to be quantitatively introduced into the micro packed bed reactor 1 for reaction.

[0026] Reference Figure 1-4 The receiving mechanism includes a second hydrogen storage cylinder 10. The outer side of the middle part of the second hydrogen storage cylinder 10 is fixedly installed on the first connecting plate 2. The top of the second hydrogen storage cylinder 10 is connected to a receiving pipe 11. One end of the receiving pipe 11 is connected to one side of the top of the micro packed bed reactor 1.

[0027] By adopting the above technical solution, the material receiving pipe 11 facilitates the collection of hydrogen into the second hydrogen storage cylinder 10 by opening the third solenoid valve 17 and closing the fourth solenoid valve 19.

[0028] Reference Figure 1-4 The bottom end of the second hydrogen storage cylinder 10 is connected to a first connecting pipe 12, one end of the first connecting pipe 12 is connected to a gas pump 13, the output port of the gas pump 13 is connected to a second connecting pipe 14, and one end of the second connecting pipe 14 is connected to one side of the feeding pipe 5.

[0029] By adopting the above technical solution, the air pump 13 facilitates the opening of the fourth solenoid valve 19 and the second solenoid valve 16, allowing the hydrogen in the second hydrogen storage cylinder 10 to be introduced into the first hydrogen storage cylinder 3 via the air pump 13.

[0030] Reference Figure 1-4 A first solenoid valve 15 is installed on the feeding pipe 4, and a second solenoid valve 16 is installed on the feeding pipe 5. The second solenoid valve 16 is located between the second connecting pipe 14 and the first hydrogen storage cylinder 3.

[0031] By adopting the above technical solution, the first solenoid valve 15 and the second solenoid valve 16 are set to facilitate the opening and closing of the first solenoid valve 15 and the second solenoid valve 16, thereby enabling hydrogen to be introduced into the first hydrogen storage cylinder 3, and thus facilitating the quantitative use of the introduced hydrogen.

[0032] Reference Figure 1-4 A third solenoid valve 17 is installed on the receiving pipe 11, and a detector 18 for detecting hydrogen concentration is installed on the receiving pipe 11. The detector 18 is located between the third solenoid valve 17 and the second hydrogen storage tank 10. A fourth solenoid valve 19 is installed on the connecting pipe, and the fourth solenoid valve 19 is located between the gas pump 13 and the second hydrogen storage tank 10.

[0033] By adopting the above technical solution, the third solenoid valve 17 and the fourth solenoid valve 19 can be set to facilitate the collection of hydrogen by controlling their opening and closing, and the hydrogen can be reintroduced into the first hydrogen storage cylinder 3.

[0034] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A micro-packed bed catalytic hydrogenation reactor, comprising a micro-packed bed reactor (1), characterized in that: The micro-filled bed reactor (1) is equipped with a first connecting plate (2) in the middle. A feeding mechanism for quantitative hydrogen addition is installed on one side of the first connecting plate (2), and a receiving mechanism for hydrogen collection and reuse is installed on the other side of the first connecting plate (2). The feeding mechanism includes a first hydrogen storage cylinder (3), the outer side of the middle part of the first hydrogen storage cylinder (3) is fixedly installed on the first connecting plate (2), and a feeding pipe (4) is connected to one side of the bottom end of the first hydrogen storage cylinder (3). One end of the feeding pipe (4) is connected to the bottom of the micro packed bed reactor (1).

2. The micro-packed bed catalytic hydrogenation reactor according to claim 1, characterized in that: A feeding pipe (5) is connected to the other side of the bottom of the first hydrogen storage cylinder (3). One end of the feeding pipe (5) is connected to a hydrogen supply device for providing hydrogen. A movable groove (6) is opened at the top of the first hydrogen storage cylinder (3).

3. The micro-packed bed catalytic hydrogenation reactor according to claim 2, characterized in that: An installation rod (7) is movably installed in the movable groove (6). A second connecting plate (8) is fixedly installed at the bottom end of the installation rod (7). A rubber plug (9) is fixedly installed at the bottom end of the second connecting plate (8).

4. The micro-packed bed catalytic hydrogenation reactor according to claim 1, characterized in that: The receiving mechanism includes a second hydrogen storage cylinder (10), and the outer side of the middle part of the second hydrogen storage cylinder (10) is fixedly installed on the first connecting plate (2).

5. The micro-packed bed catalytic hydrogenation reactor according to claim 4, characterized in that: The top of the second hydrogen storage cylinder (10) is connected to a receiving pipe (11), one end of which is connected to one side of the top of the micro packed bed reactor (1).

6. The micro-packed bed catalytic hydrogenation reactor according to claim 5, characterized in that: The bottom end of the second hydrogen storage cylinder (10) is connected to a first connecting pipe (12), and one end of the first connecting pipe (12) is connected to a gas pump (13).

7. The micro-packed bed catalytic hydrogenation reactor according to claim 6, characterized in that: The output port of the air pump (13) is connected to a second connecting pipe (14), one end of which is connected to one side of the feeding pipe (5).

8. The micro-packed bed catalytic hydrogenation reactor according to claim 7, characterized in that: A first solenoid valve (15) is installed on the feeding pipe (4), and a second solenoid valve (16) is installed on the feeding pipe (5). The second solenoid valve (16) is located between the second connecting pipe (14) and the first hydrogen storage cylinder (3).

9. A micro-packed bed catalytic hydrogenation reactor according to claim 6, characterized in that: A third solenoid valve (17) is installed on the receiving pipe (11), and a detector (18) for detecting hydrogen concentration is installed on the receiving pipe (11).

10. A micro-packed bed catalytic hydrogenation reactor according to claim 9, characterized in that: The detection gauge (18) is located between the third solenoid valve (17) and the second hydrogen storage tank (10). A fourth solenoid valve (19) is installed on the first connecting pipe (12). The fourth solenoid valve (19) is located between the gas pump (13) and the second hydrogen storage tank (10).

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