Industrial white oil hydrogenation reaction equipment

Abstract

The utility model provides industrial white oil hydrogenation reaction equipment and relates to the technical field of white oil processing. The industrial white oil hydrogenation reaction equipment comprises a reaction kettle, a partition plate, a mixing cavity, a reaction cavity, a first conveying pipe, a second conveying pipe, a flow valve, a pressurizing pipe, a driving motor, a stirring assembly, a first electromagnetic nozzle, a grating net, a grid box, a noble metal catalyst, a discharging pipe, a control valve, an electric pump, an adapter pipe, a flow guide pipe and a second electromagnetic nozzle, according to the device, raw material oil and raw material hydrogen can be mixed firstly and then uniformly sprayed to the upper surface of a grid box in a spraying manner, the utilization rate of a noble metal catalyst is increased, then mixed liquid subjected to primary catalysis can be subjected to secondary and multiple catalytic reactions through an electric pump, a flow guide pipe and a second electromagnetic nozzle, and the catalytic reaction efficiency is improved. The utilization rate of the noble metal catalyst is further improved, the use amount of the noble metal catalyst is reduced, cost is saved, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of white oil processing, in particular to industrial white oil hydrogenation reaction equipment. Background Art

[0002] Industrial white oil is a colorless, odorless, non-toxic mineral oil widely used in the cosmetics, medicine, food, textile, plastics and other industries. The main production methods of industrial white oil include solvent refining, catalytic hydrogenation, catalytic cracking and catalytic reforming.

[0003] Catalytic hydrogenation is a method of using a catalyst to saturate unsaturated hydrocarbons and aromatic hydrocarbons in crude oil, thereby improving the stability and quality of the oil. During the use of existing white oil hydrogenation reaction equipment, the mixing between the input crude oil and raw hydrogen is not sufficient, resulting in low catalyst utilization. The existing method is to use a multi-layer catalyst bed. Since the catalyst is a precious metal, the amount of catalyst used increases, the cost increases, and it is difficult to meet the use requirements. Utility Model Content

[0004] The purpose of the utility model is to provide an industrial white oil hydrogenation reaction device, aiming to solve the problems mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: the industrial white oil hydrogenation reaction equipment comprises a reactor, a partition is arranged inside the reactor, the partition is used to divide the inside of the reactor into a mixing chamber and a reaction chamber, the mixing chamber is located above the reaction chamber, and also comprises a first delivery pipe and a second delivery pipe for inputting raw oil and raw hydrogen into the mixing chamber of the reactor, the first delivery pipe and the second delivery pipe are both provided with flow valves, and also comprises a booster pipe connected to the mixing chamber of the reactor, a driving motor is arranged on the upper part of the reactor, a stirring assembly driven by the driving motor is arranged in the mixing chamber of the reactor, at least one first electromagnetic nozzle is arranged on the lower surface of the partition, and the reactor A grid mesh is arranged inside the reactor and below the first electromagnetic nozzle, a grid box is arranged below the grid mesh, a precious metal catalyst is placed inside the grid box, a discharge pipe is arranged at the bottom of the reactor, a control valve is arranged at the lower end of the discharge pipe, the control valve has two discharge ports, an electric pump is arranged on the outer surface of the reactor, the electric pump has an input end and an output end, the input end of the electric pump is connected to one of the discharge ports of the control valve through a transfer tube, a guide pipe is arranged inside the reactor and between the grid mesh and the grid box, one end of the guide pipe is connected to the output end of the electric pump, a second electromagnetic nozzle is arranged on the guide pipe at intervals, and the opening of the second electromagnetic nozzle is arranged upward.

[0006] Preferably, eight first electromagnetic nozzles are provided and are evenly arranged around the circumference of the lower surface of the partition.

[0007] Preferably, the partition is circular, and the distance between the first electromagnetic nozzle and the center of the partition and the distance between the first electromagnetic nozzle and the edge of the partition are the same.

[0008] Preferably, the portion of the flow guide tube located in the reactor is linear, the second electromagnetic nozzles on the flow guide tube are arranged obliquely, and the directions of two adjacent second electromagnetic nozzles are opposite.

[0009] Preferably, a filter is provided inside the reactor and below the grid box.

[0010] The beneficial effects of the utility model are:

[0011] The device can first mix the raw oil and raw hydrogen, and then evenly spray them onto the upper surface of the grid box by spraying, thereby improving the utilization rate of the precious metal catalyst; then, through the electric pump, the guide tube and the second electromagnetic nozzle, the mixed liquid that has completed the initial catalysis can be subjected to secondary and multiple catalytic reactions, thereby further improving the utilization rate of the precious metal catalyst, reducing the use of the precious metal catalyst, saving costs, and achieving good use effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a specific embodiment of the utility model.

[0013] Figure 2 It is a schematic diagram of the structure inside the reactor of a specific embodiment of the utility model.

[0014] In the figure: 1. Reactor; 2. Partition; 3. First delivery pipe; 4. Second delivery pipe; 5. Flow valve; 6. Booster pipe; 7. Drive motor; 8. Stirring assembly; 9. First electromagnetic nozzle; 10. Grid mesh; 11. Grid box; 12. Precious metal catalyst; 13. Discharge pipe; 14. Control valve; 15. Electric pump; 16. Transfer pipe; 17. Guide pipe; 18. Second electromagnetic nozzle; 19. Filter. DETAILED DESCRIPTION

[0015] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0016] like Figure 1-2As shown, an industrial white oil hydrogenation reaction equipment includes a reactor 1, a partition 2 is arranged inside the reactor 1, the partition 2 is used to divide the inside of the reactor 1 into a mixing chamber and a reaction chamber, the mixing chamber is located above the reaction chamber, and also includes a first delivery pipe 3 and a second delivery pipe 4 for inputting raw oil and raw hydrogen into the mixing chamber of the reactor 1, and the first delivery pipe 3 and the second delivery pipe 4 are both provided with flow valves 5, and also includes a booster pipe 6 connected to the mixing chamber of the reactor 1, a driving motor 7 is arranged on the upper part of the reactor 1, and a stirring assembly 8 driven by the driving motor 7 is arranged in the mixing chamber of the reactor 1, and at least one first electromagnetic nozzle 9 is arranged on the lower surface of the partition 2, and the reactor 1 is provided with a first electromagnetic nozzle 9. A grid net 10 is provided, a grid box 11 is arranged below the grid net 10, a precious metal catalyst 12 is placed inside the grid box 11, a discharge pipe 13 is arranged at the bottom of the reactor 1, a control valve 14 is arranged at the lower end of the discharge pipe 13, the control valve 14 has two discharge ports, an electric pump 15 is arranged on the outer surface of the reactor 1, the electric pump 15 has an input end and an output end, the input end of the electric pump 15 is connected to one of the discharge ports of the control valve 14 through a transfer tube 16, a guide tube 17 is arranged inside the reactor 1 and between the grid net 10 and the grid box 11, one end of the guide tube 17 is connected to the output end of the electric pump 15, and a second electromagnetic nozzle 18 is arranged at intervals on the guide tube 17, and the opening of the second electromagnetic nozzle 18 is arranged upward.

[0017] The partition 2 is used to completely separate the mixing chamber and the reaction chamber in the reactor 1, so that the mixing chamber and the reaction chamber cannot penetrate each other, so that the mixing in the mixing chamber and the reaction in the reaction chamber do not interfere with each other. The raw oil and raw hydrogen in the mixing chamber can only enter the reaction chamber through the first electromagnetic nozzle 9 on the partition 2 after being fully mixed.

[0018] The first delivery pipe 3 is a raw oil delivery pipe, through which the raw oil can be delivered to the mixing chamber of the reactor 1. After the delivery of the raw oil is completed, the first delivery pipe 3 is closed by the flow valve 5. The second delivery pipe 4 is a liquid raw hydrogen delivery pipe, and the delivery amount of the raw hydrogen is determined according to the delivery amount of the raw oil. After a certain amount of raw hydrogen is delivered, the second delivery pipe 4 is closed by the flow valve 5 on the second delivery pipe 4. The boosting pipe 6 is connected to an external boosting device to increase the pressure inside the mixing chamber in the reactor 1, so that the first electromagnetic nozzle 9 can normally spray the mixed raw materials in the mixing chamber into the reaction chamber at high pressure.

[0019] The surface of the grid net 10 has numerous meshes. When the first electromagnetic nozzle 9 sprays the mixed raw materials onto the grid net 10, a collision occurs between the raw material liquid and the grid net 10, which can increase the range of the sprayed mixed raw materials and reduce the impact deformation of the grid box 11, thereby preventing the leakage of the precious metal catalyst 12 in the grid box 11. The precious metal catalyst 12 can be a cobalt-molybdenum catalyst, a nickel-molybdenum catalyst, a palladium catalyst, etc.

[0020] The mixed raw materials undergo a chemical reaction under the catalytic action of the precious metal catalyst 12. When the reaction is not complete, one discharge port of the control valve 14 is closed and the other discharge port of the control valve 14 is opened, so that the mixed liquid at the bottom of the reactor 1 continues to be sprayed to the top of the grid box 11 through the guide pipe 17 and the second electromagnetic nozzle 18 under the action of the electric pump 15, and re-passes through the catalysis of the precious metal catalyst 12 in the grid box 11 to improve the catalytic effect. Since the opening of the second electromagnetic nozzle 18 is set upward, the distance for the mixed liquid to re-enter the grid box 11 can be increased, and the spraying range of the mixed liquid can be further increased through the grid mesh 10 to improve the utilization rate of the precious metal catalyst 12.

[0021] Working principle: a fixed amount of raw oil and raw hydrogen are delivered to the mixing chamber of the reactor 1 through the first delivery pipe 3 and the second delivery pipe 4. After the delivery is completed, the first delivery pipe 3 and the second delivery pipe 4 are closed through the flow valve 5, and then the drive motor 7 is started. The drive motor 7 drives the stirring assembly 8 to stir the raw oil and raw hydrogen so that the two are evenly mixed. At the same time, the pressure in the mixing chamber is increased through the booster pipe 6. After the mixing is completed, the mixed raw materials in the mixing chamber are sprayed onto the grid net 10 through the first electromagnetic nozzle 9, and are evenly spread above the grid box 11. Then the mixed raw materials are moved along the precious metal catalyst 1 in the grid box 11. 2 flows downward, the precious metal catalyst 12 catalyzes the reaction of the raw oil and the raw hydrogen, and finally gathers at the bottom of the reaction chamber in the reactor 1. When all the mixed raw materials in the mixing chamber are gathered at the bottom of the reaction chamber, the mixed liquid at the bottom of the reaction chamber is re-extracted to the top of the grid box 11 through the electric pump 15 and the control valve 14, and then sprayed upward through the second electromagnetic nozzle 18 on the guide pipe 17. The sprayed mixed liquid re-enters the grid box 11 and is catalyzed by the precious metal catalyst 12 again to improve the catalytic effect. After the catalytic reaction is completed, the liquid gathered at the bottom of the reaction chamber is discharged through the control valve 14.

[0022] Furthermore, eight first electromagnetic nozzles 9 are provided and are evenly arranged on the circumference of the lower surface of the partition 2. All first electromagnetic nozzles 9 can completely cover the upper surface of the grid box 11, and make the mixed liquid sprayed onto the upper surface of the grid box 11 as uniform as possible to improve the effect of the catalytic reaction.

[0023] Furthermore, the partition 2 is circular, and the first electromagnetic nozzle 9 is at the same distance from the center of the partition 2 and the edge of the partition 2 to ensure that the first electromagnetic nozzle 9 can be evenly sprayed onto the upper surface of the grid box 11 .

[0024] Furthermore, the portion of the guide tube 17 located inside the reactor 1 is straight, the second electromagnetic nozzle 18 on the guide tube 17 is tilted, and the two adjacent second electromagnetic nozzles 18 are oriented in opposite directions. When one of the second electromagnetic nozzles 18 sprays toward the upper left, the two adjacent second electromagnetic nozzles 18 spray toward the upper right, so that the mixed liquid sprayed by the second electromagnetic nozzle 18 can cover the upper surface of the grid box 11 as evenly as possible.

[0025] Furthermore, a filter screen 19 is provided inside the reactor 1 and below the grid box 11 , and the mechanical impurities in the mixed liquid can be filtered out through the filter screen 19 to improve the quality of the product.

[0026] The device can first mix the raw oil and raw hydrogen, and then evenly spray them onto the upper surface of the grid box 11 by spraying, thereby improving the utilization rate of the precious metal catalyst 12, and then through the electric pump 15, the guide tube 17 and the second electromagnetic nozzle 18, the mixed liquid that has completed the initial catalysis can be subjected to secondary and multiple catalytic reactions, thereby further improving the utilization rate of the precious metal catalyst 12, reducing the usage of the precious metal catalyst 12, saving costs, and achieving good use effects.

[0027] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An industrial white oil hydrogenation reaction equipment, characterized in that: The invention comprises a reactor (1), wherein a partition (2) is arranged inside the reactor (1), wherein the partition (2) is used to divide the inside of the reactor (1) into a mixing chamber and a reaction chamber, wherein the mixing chamber is located above the reaction chamber, and further comprises a first delivery pipe (3) and a second delivery pipe (4) for inputting raw oil and raw hydrogen into the mixing chamber of the reactor (1), wherein the first delivery pipe (3) and the second delivery pipe (4) are both provided with flow valves (5), and further comprises a booster pipe (6) connected to the mixing chamber of the reactor (1), wherein a driving motor (7) is arranged at the upper part of the reactor (1), wherein a stirring assembly (8) driven by the driving motor (7) is arranged in the mixing chamber of the reactor (1), wherein at least one first electromagnetic nozzle (9) is arranged on the lower surface of the partition (2), wherein a grille (10) is arranged inside the reactor (1) and below the first electromagnetic nozzle (9), wherein the grille (10) A grid box (11) is arranged below the grid box (10), a precious metal catalyst (12) is placed inside the grid box (11), a discharge pipe (13) is arranged at the bottom of the reactor (1), a control valve (14) is arranged at the lower end of the discharge pipe (13), and the control valve (14) has two discharge ports, an electric pump (15) is arranged on the outer surface of the reactor (1), the electric pump (15) has an input end and an output end, the input end of the electric pump (15) is connected to one of the discharge ports of the control valve (14) through a transfer pipe (16), a guide pipe (17) is arranged inside the reactor (1) and between the grid net (10) and the grid box (11), one end of the guide pipe (17) is connected to the output end of the electric pump (15), and a second electromagnetic nozzle (18) is arranged on the guide pipe (17) at intervals, and the opening of the second electromagnetic nozzle (18) is arranged upward.

2. The industrial white oil hydrogenation reaction equipment according to claim 1, characterized in that: There are eight first electromagnetic nozzles (9) which are evenly arranged around the circumference of the lower surface of the partition (2).

3. The industrial white oil hydrogenation reaction equipment according to claim 2 is characterized in that: The partition (2) is circular, and the distance between the first electromagnetic nozzle (9) and the center of the partition (2) and the edge of the partition (2) are the same.

4. The industrial white oil hydrogenation reaction equipment according to claim 1 is characterized in that: The portion of the flow guide tube (17) located inside the reaction kettle (1) is in a straight line shape, the second electromagnetic nozzles (18) on the flow guide tube (17) are arranged at an angle, and the directions of two adjacent second electromagnetic nozzles (18) are opposite.

5. The industrial white oil hydrogenation reaction equipment according to any one of claims 1 to 4, characterized in that: A filter screen (19) is provided inside the reaction kettle (1) and below the grid box (11).

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