Upflow liquid phase hydrogenation reactor

Abstract

This utility model relates to the field of hydrogenation reaction technology, specifically to a liquid-phase upflow hydrogenation reactor. The liquid-phase upflow hydrogenation reactor includes: a gas-liquid mixer detachably installed on the reactor body; the gas-liquid mixer has a gas dispersion structure for communication with a liquid phase delivery pipe and a gas phase delivery pipe; the gas dispersion structure is configured to allow gaseous material from the gas phase delivery pipe to mix with liquid oil from the liquid phase delivery pipe in the form of small bubbles; the gas dispersion structure is connected to a reactant inlet, allowing the mixture of gaseous material and liquid oil to enter the reaction chamber. Both gaseous material and liquid oil can enter the gas dispersion structure, and the gas dispersion structure allows the gaseous material to mix with the liquid oil in the form of small bubbles. The mixing of gaseous material with liquid oil in the form of small bubbles improves the mixing effect between gaseous material and liquid oil in the liquid-phase upflow hydrogenation reactor, thereby improving the hydrogenation reaction effect.

Description

Technical Field

[0001] This utility model relates to the field of hydrogenation reaction technology, specifically to a liquid-phase upflow hydrogenation reactor. Background Technology

[0002] In existing liquid-phase upflow hydrogenation reactors, the liquid phase delivery pipe and the gas phase delivery pipe are connected to the inlet end of the mixing pipe via a tee connector, and the outlet end of the mixing pipe is connected to the inlet of the reactor body. The liquid phase delivery pipe can deliver liquid oil (liquid), and the gas phase delivery pipe can deliver gaseous material (gas). The liquid oil and gaseous material are mixed at the tee connector, and then the gas-liquid mixture enters the interior of the reactor body through the mixing pipe to react.

[0003] However, because the gaseous material is directly mixed with the liquid oil at the tee joint without first dispersing it into small bubbles before mixing, the gaseous material mixes with the liquid oil as large bubbles or air masses. This results in poor mixing between the gaseous material and the liquid oil, thus reducing the effectiveness of the hydrogenation reaction. Therefore, ensuring thorough mixing of the gaseous material and the liquid oil is essential to improve the hydrogenation reaction. Utility Model Content

[0004] The purpose of this invention is to improve the mixing effect of gaseous materials and liquid oil in a liquid-phase upflow hydrogenation reactor.

[0005] To achieve the above objectives, this utility model provides a liquid-phase upflow hydrogenation reactor, which includes: a reactor body having a reactant inlet, a reactant outlet, and a reaction chamber, wherein the reactant inlet and reactant outlet are respectively connected to the reaction chamber; and a gas-liquid mixer detachably installed on the reactor body, the gas-liquid mixer having a gas dispersion structure for connecting to a liquid phase delivery pipe and a gas phase delivery pipe, the gas dispersion structure being configured to allow gaseous material from the gas phase delivery pipe to mix in the form of small bubbles with liquid oil from the liquid phase delivery pipe; the gas dispersion structure is connected to the reactant inlet so that the mixed reactant formed by the gaseous material and the liquid oil can enter the reaction chamber.

[0006] In some embodiments, the gas-liquid mixer includes a connector that is connected to the reactor body via a flange structure, and the connector is provided with a gas dispersion structure.

[0007] In some embodiments, the gas dispersion structure includes a gas delivery chamber and a gas disperser. The gas delivery chamber is disposed inside the connector. The gas delivery chamber is capable of being sealed and connected to a gas phase delivery pipe to allow gas phase material to enter the gas delivery chamber. The gas disperser is disposed in the gas delivery chamber and has a delivery channel inside. One end of the delivery channel is capable of being sealed and connected to a liquid phase delivery pipe to allow liquid phase oil to enter the delivery channel. The gas disperser is provided with a plurality of micropores that allow the gas phase material in the gas delivery chamber to mix with the liquid phase oil in the delivery channel in the form of small bubbles. The other end of the delivery channel is sealed and connected to a reactant inlet to allow the mixed reactant formed by the gas phase material and the liquid phase oil to enter the reaction chamber.

[0008] In some embodiments, the outer peripheral wall of the gas disperser is spaced apart from the wall of the gas delivery chamber; and / or, a first connector is fixedly installed at one end of the gas disperser facing the reactant inlet, and the delivery channel is connected to the reactant inlet through the first connector.

[0009] In some embodiments, a second connector is fixedly installed at one end of the gas disperser facing away from the reactant inlet, and the delivery channel can be sealed and connected to the liquid phase delivery pipe through the second connector.

[0010] In some embodiments, the gas dispersion structure further includes an oil delivery pipe, a portion of which is located in the gas delivery chamber and is in sealed communication with the second connector, and another portion of which is located outside the connector and is in sealed communication with the liquid phase delivery pipe; the portion of the oil delivery pipe passing through the connector forms a seal with the connector.

[0011] In some embodiments, the gas-liquid mixer includes a gas delivery pipe for sealing communication with a gas phase delivery pipe, the gas delivery pipe being connected to a connector and sealing communication with a gas delivery chamber, the axis of the gas delivery pipe being perpendicular to the axis of the oil delivery pipe.

[0012] In some embodiments, the reactor body includes a shell and a thermocouple sleeve for mounting thermocouples. One end of the shell is provided with a reactant inlet. The interior of the shell is provided with a sealed chamber and a reaction chamber that are in communication with each other. A portion of the thermocouple sleeve is located outside the shell, and another portion of the thermocouple sleeve extends through the sealed chamber into the reaction chamber. The first end of the thermocouple sleeve is located in the reaction chamber and is sealed, while the last end of the thermocouple sleeve is located outside the shell and is open. The thermocouple sleeve is sealed to the sealed chamber portion of the shell by a sealing structure. A reactant outlet is provided on the side of the shell, and the reactant outlet is located between the sealing structure and the reactant inlet.

[0013] In some embodiments, the reaction chamber is provided with a plurality of catalyst supports for carrying the catalyst; and / or, the reaction chamber is provided with a support bracket for supporting the catalyst support, the support bracket being disposed between the reactant inlet and the reactant outlet, and the tip of the thermocouple sleeve pressing against the support bracket; and / or, the exterior of the shell is provided with a plurality of heat sinks, and the plurality of heat sinks are distributed around the sealing structure; and / or, a reactor support is installed on the exterior of the shell, and the reactant outlet is disposed between the reactor support and the reactant inlet; and / or, the reactor body includes a discharge pipe, the discharge pipe being fixedly installed on the side of the shell and sealingly connected to the reactant outlet.

[0014] In some embodiments, the sealing structure includes a sealing member, a first locking member, a second locking member, a pressure cap, and a third locking member; the sealing member further includes a sealing section, a sealing section, and a protruding section connected in sequence, a portion of the sealing section being installed in a sealing chamber and capable of forming a seal on the sealing chamber, the sealing section and the protruding section being disposed outside the housing, the sealing section, the sealing section, and the protruding section being fixedly sleeved on a thermocouple sleeve, and the end of the thermocouple sleeve being located in the protruding section; the first locking member includes a first locking sleeve and a first pressure cover plate that are mutually sealed and connected, the first locking sleeve being fixedly sleeved on the housing, the first pressure cover plate being pressed between the end of the sealing section and the housing, and the sealing section sealingly passing through the first pressure cover plate; the second locking member includes a second locking sleeve and a first pressure cover plate that are mutually sealed and connected. The second clamping cover plate and the second locking sleeve are fixedly sleeved on the first locking sleeve. The protruding section passes through the second clamping cover plate, and the sealing section is pressed between the second clamping cover plate and the first clamping cover plate. The cover plate includes a pressure cylinder and a pressure plate connected to each other. The protruding section is sleeved on the pressure cylinder. A sealing ring assembly is provided between the end of the thermocouple sleeve and the pressure cylinder. The sealing ring assembly and the pressure cylinder are distributed around the axis of the thermocouple sleeve, and the inner diameter of the sealing ring assembly and the inner diameter of the pressure cylinder are larger than the outer diameter of the thermocouple sleeve. The third locking element includes a third locking sleeve and a third clamping cover plate connected to each other in a sealing manner. The third locking sleeve is sleeved on the end of the protruding section facing away from the sealing section. The pressure plate is located between the third clamping cover plate and the end of the protruding section. The third clamping cover plate has a through hole, which communicates with the thermocouple sleeve through the pressure cylinder.

[0015] The above-mentioned technical solution of this utility model has the following technical effects: Both gaseous materials and liquid oil products can enter the gas dispersion structure, which allows the gaseous materials to mix with the liquid oil products in the form of small bubbles (as opposed to the gaseous materials mixing with the liquid oil products in the form of large bubbles or large masses). The mixing of gaseous materials with liquid oil products in the form of small bubbles can improve the mixing effect between gaseous materials and liquid oil products in the liquid-phase upflow hydrotreating reactor, thereby improving the hydrotreating reaction effect. Attached Figure Description

[0016] Figure 1This is a schematic cross-sectional view of a liquid-phase upflow hydrogenation reactor in one embodiment of this utility model; Figure 2 This is a cross-sectional schematic diagram of a gas-liquid mixer in one embodiment of this utility model; Figure 3 This is a schematic diagram of the mixing of gaseous materials and liquid oil in a gas disperser in one embodiment of this utility model; Figure 4 This is a cross-sectional schematic diagram of the sealing structure in one embodiment of this utility model; Figure 5 This is a schematic diagram of the installation of the first locking member and the second locking member in one embodiment of this utility model; Figure 6 This is a schematic diagram of the installation of the pressure cap in one embodiment of this utility model.

[0017] Explanation of reference numerals in the attached figures 1. Reactor body; 11. Shell; 111. Reactant inlet; 112. Reactant outlet; 113. Reaction chamber; 114. Carrier support; 115. Heat sink; 116. Reactor support; 117. Discharge pipe; 12. Thermocouple sleeve; 13. Sealing structure; 131. Sealing component; 1311. Sealing section; 1312. Sealing section; 1313. Extension section; 132. First locking component; 1321. First locking sleeve; 322. First clamping cover plate; 133. Second locking element; 1331. Second locking sleeve; 1332. Second clamping cover plate; 134. Pressure cover; 1341. Pressure cylinder; 1342. Pressure plate; 135. Third locking element; 1351. Third locking sleeve; 1352. Third clamping cover plate; 1353. Perforation; 136. Sealing ring assembly; 14. First flange plate; 141. Bolt assembly; 15. Connecting disc; 151. Channel; 2. Gas-liquid mixer; 21. Gas dispersion structure; 211. Gas conveying chamber; 212. Gas disperser; 213. Conveying channel; 214. First connector; 215. Second connector; 22. Connector; 23. Oil conveying pipe; 24. Gas conveying pipe; 25. Second flange plate. Detailed Implementation

[0018] The features and exemplary embodiments of various aspects of this utility model will now be described in detail. To make the objectives, technical solutions, and advantages of this utility model clearer, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a further detailed description. It should be understood that the specific embodiments described herein are intended only to explain this utility model and not to limit it. For those skilled in the art, this utility model can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this utility model by illustrating examples of it.

[0019] like Figures 1-2 As shown, this utility model provides a liquid-phase upflow hydrogenation reactor (which can be simply referred to as a hydrogenation reactor), which includes a reactor body 1 and a gas-liquid mixer 2. The reactor body 1 has a reactant inlet 111, a reactant outlet 112, and a reaction chamber 113, with the reactant inlet 111 and reactant outlet 112 respectively connected to the reaction chamber 113. The gas-liquid mixer 2 is detachably installed on the reactor body 1 and has a gas dispersion structure 21 for connecting to the liquid phase delivery pipe and the gas phase delivery pipe. The gas dispersion structure 21 is configured to mix the gaseous material from the gas phase delivery pipe in the form of small bubbles with the liquid oil from the liquid phase delivery pipe. The gas dispersion structure 21 is connected to the reactant inlet 111 so that the mixed reactant formed by the gaseous material and the liquid oil can enter the reaction chamber 113.

[0020] Specifically, the liquid phase delivery pipe can be connected to the gas dispersion structure 21, thereby enabling the delivery of liquid phase oil to the gas dispersion structure 21. The gas phase delivery pipe can also be connected to the gas dispersion structure 21, enabling the delivery of gas phase materials to the gas dispersion structure 21. When the gas phase materials are delivered to the gas dispersion structure 21, the gas dispersion structure 21 can uniformly disperse the gas phase materials and form small bubbles, thus mixing the gas phase materials in the form of small bubbles with the liquid phase oil in the gas dispersion structure 21. After the gas phase materials and liquid phase oil are mixed, a mixed reactant is formed. Based on the pressure of the liquid phase oil in the liquid phase delivery pipe, the mixed reactant enters the reaction chamber 113 through the reactant inlet 111 and further flows upward to the reactant outlet 112. The reaction chamber 113 can be filled with a catalyst, and a heating device can heat the reactor body 1. Therefore, during the flow of the mixed reactant towards the reactant outlet 112, the mixed reactant undergoes a reaction and produces corresponding reaction products. Furthermore, since the gaseous material is uniformly mixed in the liquid oil in the form of small bubbles, the mixing effect between the gaseous material and the liquid oil is better, resulting in a better hydrogenation reaction effect between the gaseous material and the liquid oil.

[0021] In this embodiment, both the gaseous material and the liquid oil can enter the gas dispersion structure 21, and the gas dispersion structure 21 enables the gaseous material to be mixed with the liquid oil in the form of small bubbles. (Compared to the gaseous material being mixed with the liquid oil in the form of large bubbles or large masses) The mixing of the gaseous material with the liquid oil in the form of small bubbles can improve the mixing effect between the gaseous material and the liquid oil in the liquid-phase upflow hydrogenation reactor, thereby improving the hydrogenation reaction effect.

[0022] It should be noted that the heating device is a standalone device specifically designed for heating liquid-phase upflow hydrogenation reactors in the prior art, providing the necessary temperature environment for the hydrogenation reaction.

[0023] like Figures 1-2 As shown, in some embodiments of this utility model, the gas-liquid mixer 2 includes a connector 22, which is connected to the reactor body 1 via a flange structure, and the connector 22 is provided with a gas dispersion structure 21.

[0024] Specifically, the flange structure includes a first flange plate 14, a second flange plate 25, and multiple bolt assemblies 141. The reactor body 1 is provided with the first flange plate 14, and the connector 22 is provided with the second flange plate 25. The first flange plate 14 and the second flange plate 25 are connected by multiple bolt assemblies 141.

[0025] It should be noted that those skilled in the art will understand that bolt assembly 141 includes bolts and nuts that are threaded together.

[0026] In some embodiments, the flange structure further includes a connecting plate 15, which is clamped between the reactor body 1 and the connector 22, and is sealed between the connecting plate 15 and the reactor body 1 by a sealing ring, and between the connecting plate 15 and the connector 22 by a sealing ring. Bolts of the bolt assembly 141 pass through the connecting plate 15. The connecting plate 15 has a through-hole 151 through which the gas dispersion structure 21 communicates with the reactant inlet 111.

[0027] like Figures 1-3 As shown, in some embodiments of this utility model, the gas dispersion structure 21 includes a gas conveying chamber 211 and a gas disperser 212. The gas conveying chamber 211 is disposed inside the connector 22. The gas conveying chamber 211 can be sealed and connected to the gas phase conveying pipe so that the gas phase material can enter the gas conveying chamber 211. The gas disperser 212 is disposed in the gas conveying chamber 211, and the gas disperser 212 has a conveying channel 213 inside. One end of the conveying channel 213 can be sealed and connected to the liquid phase conveying pipe so that the liquid phase oil can enter the conveying channel 213. The gas disperser 212 is provided with a plurality of micropores that can mix the gas phase material in the gas conveying chamber 211 with the liquid phase oil in the conveying channel 213 in the form of small bubbles. The other end of the conveying channel 213 is sealed and connected to the reactant inlet 111 so that the mixed reactant formed by the gas phase material and the liquid phase oil can enter the reaction chamber 113 upward.

[0028] Specifically, the liquid phase delivery pipe can deliver liquid phase oil to the delivery channel 213 of the gas disperser 212, and the gas phase delivery pipe can deliver gaseous material to the gas delivery chamber 211. The gaseous material in the gas delivery chamber 211 is mixed with the liquid phase oil in the delivery channel 213 by the gas disperser 212 (see reference). Figure 3 The gas disperser 212 has multiple micropores, and the gas conveying chamber 211 is connected to the conveying channel 213 through the micropores. These micropores can uniformly disperse the gaseous material (see reference). Figure 3 This process allows the gaseous material to mix with the liquid oil in the form of small bubbles, thus ensuring a uniform mixture of the gaseous material and the liquid oil.

[0029] In some embodiments, the gas disperser 212 can be a tubular metal powder sintered filter element commonly used in the art. The tubular metal powder sintered filter element has multiple interconnected micropores that extend from its outer surface to its inner surface, allowing the outside of the tubular metal powder sintered filter element to communicate with its interior through these micropores. In other embodiments, the gas disperser 212 can also be a ceramic separation membrane tube commonly used in the art. Similarly, the ceramic separation membrane tube also has multiple interconnected micropores that extend from its outer surface to its inner surface, allowing the outside of the ceramic separation membrane tube to communicate with its interior through these micropores. Of course, the gas disperser 212 can also have other structural forms, and this invention is not limited thereto.

[0030] In some embodiments, the pore size of the micropores can be between 1 nm and 1000 nm to ensure that the gas-phase mixture is fully mixed in the liquid-phase oil. In some embodiments, the porosity of the gas disperser 212 is between 20% and 90%.

[0031] like Figures 1-2 As shown, in some embodiments of this utility model, the outer peripheral wall of the gas disperser 212 is spaced apart from the wall of the gas conveying chamber 211, so that the gaseous material can flow between the outer peripheral wall of the gas disperser 212 and the wall of the gas conveying chamber 211, thereby facilitating the entry of the gaseous material from the outer peripheral wall of the gas disperser 212 into the gas disperser 212, and improving the mixing efficiency of the gaseous material and the liquid oil.

[0032] In some embodiments, such as Figure 2 As shown, the gas delivery chamber 211 is cylindrical, and the gas disperser 212 is tubular. The outer peripheral wall of the gas disperser 212 is separated from the wall of the gas delivery chamber 211 in the radial direction of the gas delivery chamber 211.

[0033] like Figures 2-3As shown, in some embodiments of this utility model, a first connector 214 is fixedly installed at one end of the gas disperser 212 facing the reactant inlet 111, and the conveying channel 213 is connected to the reactant inlet 111 through the first connector 214.

[0034] Specifically, by providing the first connector 214, it is easy to establish a connection between the conveying channel 213 and the reactant inlet 111. In addition, the first connector 214 also facilitates the connection of the gas disperser 212 to the reactor body 1.

[0035] In some embodiments, the first connector 214 includes a first connecting cover and a first connecting pipe. The first connecting cover is a sealing cover disposed at one end of the gas disperser 212 facing the reactant inlet 111. The first connecting pipe is fixedly installed on the first connecting cover. The first connecting pipe communicates with the delivery channel 213 and is in sealed communication with the reactant inlet 111.

[0036] In some embodiments, the first connecting tube is sealed and inserted into the channel 151 of the connecting disc 15 to communicate between the reactant inlet 111 and the delivery channel 213.

[0037] like Figures 2-3 As shown, in some embodiments of this utility model, a second connector 215 is fixedly installed at one end of the gas disperser 212 facing away from the reactant inlet 111, and the conveying channel 213 can be sealed and connected to the liquid phase conveying pipe through the second connector 215.

[0038] Specifically, by setting a second connector 215, it is easy to form a connection between the delivery channel 213 and the liquid phase delivery pipe.

[0039] In some embodiments, the second connector 215 includes a second connecting cover and a second connecting pipe. The second connecting cover is sealed at one end of the gas disperser 212 away from the reactant inlet 111. The second connecting pipe is fixedly installed on the second connecting cover, communicates with the delivery channel 213, and is sealed to the liquid phase delivery pipe.

[0040] like Figures 1-2 As shown, in some embodiments of this utility model, the gas dispersion structure 21 further includes an oil delivery pipe 23. A portion of the oil delivery pipe 23 is located in the gas delivery chamber 211 and is in sealed communication with the second connector 215. Another portion of the oil delivery pipe 23 is located outside the connector 22 and is in sealed communication with the liquid phase delivery pipe. The portion of the oil delivery pipe 23 that passes through the connector 22 forms a seal with the connector 22.

[0041] Specifically, the oil delivery pipe 23 extends from the outside of the connector 22 into the gas delivery chamber 211. One end of the oil delivery pipe 23 is sealed and connected to the liquid phase delivery pipe to allow liquid oil to enter the oil delivery pipe 23. The other end of the oil delivery pipe 23 is connected to the delivery channel 213 through the connector 22.

[0042] like Figures 1-2 As shown, in some embodiments of this utility model, the gas-liquid mixer 2 includes a gas delivery pipe 24 for sealing communication with the gas phase delivery pipe. The gas delivery pipe 24 is connected to the connector 22 and is sealed in communication with the gas delivery chamber 211. The axis of the gas delivery pipe 24 is perpendicular to the axis of the oil delivery pipe 23.

[0043] Specifically, the gas in the gas phase conveying pipe can be conveyed to the gas conveying chamber 211 through the gas conveying pipe 24. By setting up the gas conveying pipe 24, it is convenient to convey gas phase materials.

[0044] In some embodiments, the outlet end of the gas delivery pipe 24 and the gas disperser 212 are spaced apart axially from each other in the oil delivery pipe 23, so that the gas disperser 212 is far away from the outlet end of the gas delivery pipe 24, which makes it easier for the gas disperser 212 to fully exert its gas dispersion function.

[0045] It should be noted that the gas dispersion structure 21 can also be configured in other structural forms, and this utility model does not impose any limitations. For example, the gas dispersion structure 21 includes a cavity and multiple gas distribution plates. The cavity is disposed in the connector 22 and is connected to the reactant inlet 111. The gas distribution plates are spaced apart in the cavity and have multiple micropores. After the gaseous material and liquid oil are mixed, they flow into the reactant inlet 111. The micropores of the gas distribution plates can disperse the gaseous material into small bubbles, so that the gaseous material is mixed in the liquid oil in the form of small bubbles. As another example, the gas dispersion structure 21 includes a flow channel and multiple gas channels disposed in the connector 22. The liquid phase delivery pipe is connected to the reactant inlet 111 through the flow channel, and the gas phase delivery pipe is connected to the flow channel through the gas channels. The diameter of the gas channels is small and can disperse the gaseous material into small bubbles.

[0046] like Figure 1 and Figure 4As shown, in some embodiments of this utility model, the reactor body 1 includes a shell 11 and a thermocouple sleeve 12 for mounting thermocouples. One end of the shell 11 is provided with a reactant inlet 111. The interior of the shell 11 is provided with a sealed chamber and a reaction chamber 113 that are interconnected. A part of the thermocouple sleeve 12 is located outside the shell 11, and the other part of the thermocouple sleeve 12 extends through the sealed chamber into the reaction chamber 113. The first end of the thermocouple sleeve 12 is located in the reaction chamber 113 and is sealed, while the last end of the thermocouple sleeve 12 is located outside the shell 11 and is open. The thermocouple sleeve 12 is sealed to the sealed chamber portion of the shell 11 by a sealing structure 13. A reactant outlet 112 is provided on the side of the shell 11, and the reactant outlet 112 is located between the sealing structure 13 and the reactant inlet 111.

[0047] Specifically, the reaction chamber 113 is located between the sealed chamber and the gas dispersion structure 21. The gas dispersion structure 21 is used for the reaction of the mixture formed by the gaseous material and the liquid oil. The sealed chamber is used to install the sealing structure 13 to prevent leakage of the mixture. When it is necessary to detect the temperature in the reaction chamber 113, a thermocouple is placed in the thermocouple sheath 12, and the temperature probe of the thermocouple is located in the reaction chamber 113.

[0048] In some embodiments of this invention, the reaction chamber 113 is provided with multiple catalyst supports for carrying the catalyst, so that the catalyst can fully exert its catalytic effect.

[0049] like Figure 1 As shown, in some embodiments of this utility model, a carrier support 114 for supporting the catalyst carrier is provided in the reaction chamber 113. The carrier support 114 is located between the reactant inlet 111 and the reactant outlet 112. The first end of the thermocouple sleeve 12 (i.e., the end of the thermocouple sleeve 12 located in the reaction chamber 113) presses against the carrier support 114.

[0050] Specifically, the carrier support 114 can support the thermocouple sleeve 12. Furthermore, the carrier support 114 can support the catalyst support at a preset position, so that after the mixed reactants are fully heated, the mixed reactants will react fully at the catalyst support, which helps to improve reaction efficiency. Moreover, the carrier support 114 can prevent the catalyst support from accumulating at the reactant inlet 111. Of course, the carrier support 114 can be any structural form that meets the requirements of this utility model, and this utility model is not limited thereto. Naturally, the carrier support 114 has a porous or perforated structure to facilitate the flow of the mixed reactants.

[0051] like Figure 1 As shown, in some embodiments of the present invention, the outer side of the housing 11 is provided with a plurality of heat sinks 115, and the plurality of heat sinks 115 are distributed around the sealing structure 13.

[0052] Specifically, the hydrogenation reaction requires a certain temperature, so the reactor body 1 needs to be heated by a heating device. However, to prevent the sealing structure 13 from being damaged by high temperature, heat dissipation is required at multiple points on the sealing structure 13. By setting heat sinks 115, the heat dissipation efficiency can be improved, thus protecting the sealing structure 13.

[0053] like Figure 1 As shown, in some embodiments of this utility model, a reactor support 116 is installed on the outside of the shell 11, and a reactant outlet 112 is disposed between the reactor support 116 and the reactant inlet 111.

[0054] Specifically, the reactor support 116 can be fixed to the adjacent equipment, such as the adjacent frame, so that the reactor body 1 is firm and reliable.

[0055] like Figure 1 As shown, in some embodiments of this utility model, the reactor body 1 includes a discharge pipe 117, which is fixedly installed on the side of the shell 11 and is sealed and connected to the reactant outlet 112.

[0056] Specifically, by setting up an exhaust pipe 117, it is convenient to connect the reactor body 1 with the downstream equipment, so that the reaction products and mixed reactants can enter the downstream equipment through the exhaust pipe 117.

[0057] like Figures 4-6As shown, in some embodiments of this utility model, the sealing structure 13 includes a sealing member 131, a first locking member 132, a second locking member 133, a pressure cap 134, and a third locking member 135. The sealing member 131 further includes a sealing section 1311, a sealing section 1312, and a protruding section 1313 connected in sequence. A portion of the sealing section 1311 is installed in the sealing chamber and can form a seal for the sealing chamber. The sealing section 1312 and the protruding section 1313 are disposed outside the housing 11. The sealing section 1311, the sealing section 1312, and the protruding section 1313 are fixedly sleeved on the thermocouple sleeve 12, and the end of the thermocouple sleeve 12 is located in the protruding section 1313. The first locking member 132 includes a first locking sleeve 1321 and a first pressing cover plate 1322 that are sealed to each other. The first locking sleeve 1321 is fixedly sleeved on the housing 11. The first pressing cover plate 1322 is pressed between the sealing section 1312 and the end of the housing 11. The sealing section 1311 passes through the first pressing cover plate 1322. The second locking member 133 includes a second locking sleeve 1331 and a second pressing cover plate 1332 that are sealed to each other. The second locking sleeve 1331 is fixedly sleeved on the first locking sleeve 1321. The protruding section 1313 passes through the second pressing cover plate 1332. The sealing section 1312 is pressed between the second pressing cover plate 1332 and the first pressing cover plate 1322. The pressure cap 134 includes a pressure cylinder 1341 and a pressure plate 1342 connected to each other. The protruding section 1313 is sleeved on the pressure cylinder 1341. A sealing ring assembly 136 is provided between the end of the thermocouple sleeve 12 and the pressure cylinder 1341. The sealing ring assembly 136 and the pressure cylinder 1341 are distributed around the axis of the thermocouple sleeve 12, and the inner diameter of the sealing ring assembly 136 and the inner diameter of the pressure cylinder 1341 are larger than the outer diameter of the thermocouple sleeve 12. The third locking member 135 includes a third locking sleeve 1351 and a third pressing cover plate 1352 connected to each other in a sealing manner. The third locking sleeve 1351 is sleeved on one end of the protruding section 1313 facing away from the sealing section 1312. The pressure plate 1342 is located between the third pressing cover plate 1352 and the end of the protruding section 1313. The third pressing cover plate 1352 is provided with a through hole 1353, which communicates with the thermocouple sleeve 12 through the pressure cylinder 1341.

[0058] Specifically, a portion of the sealing section 1311 fills the space between the thermocouple sheath 12 and the sidewall of the housing 11, thereby sealing the sealing chamber. The diameter of the sealing section 1312 is larger than the diameter of the sealing section 1311, and the diameter of the protruding section 1313 is smaller than the diameter of the sealing section 1312. The first locking member 132 and the second locking member 133 clamp the sealing section 1312, thus fixing the sealing member 131. The gland 134 and the sealing ring assembly 136 are pressed into the protruding section 1313 by the third locking member 135, and the sealing ring assembly 136 forms a seal between the thermocouple sheath 12 and the sealing member 131. Thermocouples can be disposed in thermocouple sheath 12, and the thermocouple wires can pass through the perforation 1353.

[0059] In some embodiments, such as Figure 6 As shown, the sealing ring assembly 136 includes two annular sealing rings and two annular sealing gaskets, with the sealing rings and sealing gaskets arranged alternately.

[0060] In some embodiments, the protruding section 1313 has an interconnected installation channel and a sealing channel inside, the thermocouple sleeve 12 is fixed in the installation channel, the pressure cylinder 1341 and the sealing ring assembly 136 are disposed in the sealing channel, and the diameter of the sealing channel is larger than the diameter of the installation channel.

[0061] Of course, the reactor body 1 can also be any other structural form that can achieve the above-mentioned technical effects, and this utility model does not impose any restrictions.

[0062] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of this utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A liquid-phase upflow hydrogenation reactor, characterized in that, include: The reactor body (1) has a reactant inlet (111), a reactant outlet (112), and a reaction chamber (113), wherein the reactant inlet (111) and the reactant outlet (112) are respectively connected to the reaction chamber (113); and A gas-liquid mixer (2) is detachably mounted on the reactor body (1). The gas-liquid mixer (2) has a gas dispersion structure (21) for communication with the liquid phase delivery pipe and the gas phase delivery pipe. The gas dispersion structure (21) is configured to enable gaseous material from the gas phase delivery pipe to be mixed in the form of small bubbles with liquid oil from the liquid phase delivery pipe. The gas dispersion structure (21) is connected to the reactant inlet (111) so that the mixed reactant formed by the gaseous material and the liquid oil can enter the reaction chamber (113).

2. The liquid-phase upflow hydrogenation reactor according to claim 1, characterized in that, The gas-liquid mixer (2) includes a connector (22), which is connected to the reactor body (1) via a flange structure. The connector (22) is provided with the gas dispersion structure (21).

3. The liquid-phase upflow hydrogenation reactor according to claim 2, characterized in that, The gas dispersion structure (21) includes a gas conveying chamber (211) and a gas disperser (212). The gas conveying chamber (211) is disposed inside the connector (22). The gas conveying chamber (211) can be sealed and connected to the gas phase conveying pipe so that the gas phase material can enter the gas conveying chamber (211). The gas disperser (212) is disposed in the gas conveying chamber (211), and the gas disperser (212) has a conveying channel (213) inside; one end of the conveying channel (213) can be sealed and connected to the liquid phase conveying pipe so that the liquid phase oil can enter the conveying channel (213); the gas disperser (212) is provided with a plurality of micropores that allow the gas phase material in the gas conveying chamber (211) to be mixed with the liquid phase oil in the conveying channel (213) in the form of small bubbles; the other end of the conveying channel (213) is sealed and connected to the reactant inlet (111) so that the mixed reactant formed by the gas phase material and the liquid phase oil can enter the reaction chamber (113).

4. The liquid-phase upflow hydrogenation reactor according to claim 3, characterized in that, The outer peripheral wall of the gas disperser (212) is spaced apart from the wall of the gas delivery chamber (211); And / or, a first connector (214) is fixedly installed at one end of the gas disperser (212) facing the reactant inlet (111), and the delivery channel (213) is connected to the reactant inlet (111) through the first connector (214).

5. The liquid-phase upflow hydrogenation reactor according to claim 3, characterized in that, A second connector (215) is fixedly installed at one end of the gas disperser (212) opposite to the reactant inlet (111), and the conveying channel (213) can be sealed and connected to the liquid phase conveying pipe through the second connector (215).

6. The liquid-phase upflow hydrogenation reactor according to claim 5, characterized in that, The gas dispersion structure (21) further includes an oil delivery pipe (23), a portion of which is located in the gas delivery chamber (211) and is in sealed communication with the second connector (215), and another portion of which is located outside the connector (22) and is in sealed communication with the liquid phase delivery pipe; the portion of the oil delivery pipe (23) passing through the connector (22) forms a seal with the connector (22).

7. The liquid-phase upflow hydrogenation reactor according to claim 6, characterized in that, The gas-liquid mixer (2) includes a gas delivery pipe (24) for sealing communication with the gas phase delivery pipe. The gas delivery pipe (24) is connected to the connector (22) and is sealed communication with the gas delivery chamber (211). The axis of the gas delivery pipe (24) is perpendicular to the axis of the oil delivery pipe (23).

8. The liquid-phase upflow hydrogenation reactor according to claim 1, characterized in that, The reactor body (1) includes a shell (11) and a thermocouple sleeve (12) for mounting thermocouples. One end of the shell (11) is provided with the reactant inlet (111). The interior of the shell (11) is provided with a sealed chamber and a reaction chamber (113) that are interconnected. A portion of the thermocouple sleeve (12) is located outside the shell (11), and another portion of the thermocouple sleeve (12) extends through the sealed chamber into the reaction chamber (113). The first end of the thermocouple sleeve (12) is located in the reaction chamber (113) and is sealed. The end of the thermocouple sleeve (12) is located outside the housing (11) and is open. The thermocouple sleeve (12) is sealed to the sealed chamber of the housing (11) by the sealing structure (13). The side of the housing (11) is provided with the reactant outlet (112), and the reactant outlet (112) is located between the sealing structure (13) and the reactant inlet (111).

9. The liquid-phase upflow hydrogenation reactor according to claim 8, characterized in that, The reaction chamber (113) is provided with multiple catalyst supports for carrying the catalyst; And / or, the reaction chamber (113) is provided with a support support (114) for supporting the catalyst support, the support support (114) is disposed between the reactant inlet (111) and the reactant outlet (112), and the head end of the thermocouple sleeve (12) presses against the support support (114). And / or, the exterior of the housing (11) is provided with a plurality of heat sinks (115), and the plurality of heat sinks (115) are distributed around the sealing structure (13); And / or, a reactor support (116) is installed on the outside of the shell (11), and the reactant outlet (112) is disposed between the reactor support (116) and the reactant inlet (111); And / or, the reactor body (1) includes a discharge pipe (117) which is fixedly installed on the side of the shell (11) and is in sealed communication with the reactant outlet (112).

10. The liquid-phase upflow hydrogenation reactor according to claim 8, characterized in that, The sealing structure (13) includes a sealing member (131), a first locking member (132), a second locking member (133), a pressure cap (134), and a third locking member (135). The sealing member (131) further includes a sealing section (1311), a sealing section (1312), and an extension section (1313) connected in sequence. A portion of the sealing section (1311) is installed in the sealing chamber and can form a seal for the sealing chamber. The sealing section (1312) and the extension section (1313) are disposed outside the housing (11). The sealing section (1311), the sealing section (1312), and the extension section (1313) are fixedly sleeved on the thermocouple sleeve (12), and the end of the thermocouple sleeve (12) is located in the extension section (1313). The first locking member (132) includes a first locking sleeve (1321) and a first pressing cover plate (1322) that are sealed to each other. The first locking sleeve (1321) is fixedly sleeved on the housing (11). The first pressing cover plate (1322) is pressed between the sealing section (1312) and the end of the housing (11). The sealing section (1311) seals through the first pressing cover plate (1322). The second locking member (133) includes a second locking sleeve (1331) and a second pressing cover plate (1332) that are sealed to each other. The second locking sleeve (1331) is fixedly sleeved on the first locking sleeve (1321). The protruding section (1313) passes through the second pressing cover plate (1332). The sealing section (1312) is pressed between the second pressing cover plate (1332) and the first pressing cover plate (1322). The pressure cap (134) includes a pressure cylinder (1341) and a pressure plate (1342) connected to each other. The protruding section (1313) is sleeved on the pressure cylinder (1341). A sealing ring assembly (136) is provided between the end of the thermocouple sleeve (12) and the pressure cylinder (1341). The sealing ring assembly (136) and the pressure cylinder (1341) are distributed around the axis of the thermocouple sleeve (12). The inner diameter of the sealing ring assembly (136) and the inner diameter of the pressure cylinder (1341) are larger than the outer diameter of the thermocouple sleeve (12). The third locking element (135) includes a third locking sleeve (1351) and a third pressing cover plate (1352) that are sealed to each other. The third locking sleeve (1351) is sleeved on one end of the protruding section (1313) facing away from the sealing section (1312). The pressure plate (1342) is located between the end of the third pressing cover plate (1352) and the end of the protruding section (1313). The third pressing cover plate (1352) is provided with a through hole (1353). The through hole (1353) is connected to the thermocouple sleeve (12) through the pressure sleeve (1341).

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