A liftable biomass crude oil extraction liquid separation coupling catalytic hydrogenation reactor

Abstract

The present application relates to the technical field of hydrogenation reactor, in particular to a liftable biomass crude oil extraction liquid separation coupling catalytic hydrogenation reactor, which realizes the volume change of the reactor through a lifting driving device, and couples the separation of the hydrothermal liquefaction biomass crude oil extraction liquid and the catalytic hydrogenation upgrading process of the bio-crude oil. The packing seal structure sealing cover is arranged on the top port of the reactor cylinder, which improves the sealing in the reactor cylinder. The biomass crude oil extraction liquid is connected into the reactor cylinder through the inlet, and the plunger structure can be driven to move upward in the reactor cylinder by the lifting driving device, so as to increase the volume in the reactor. The reactor cylinder is heated by the heating assembly, so that the organic solvent (dichloromethane) in the extraction liquid can be evaporated conveniently, and the dichloromethane vapor can be removed from the upper outlet of the reactor cylinder to realize collection.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrogenation reactor, in particular to a liftable biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor. BACKGROUND

[0002] Biomass hydrothermal liquefaction technology refers to a process in which organic matter in biomass raw materials undergoes hydrolysis, degradation, decomposition, decarboxylation, deamination, dehydration, reforming, polymerization and other reactions in turn / parallel in a subcritical water environment, and finally generates oil phase (target product), water phase, solid phase and gas phase products. The hydrothermal liquefaction raw material eliminates the drying process, which not only saves time and heat energy, but also avoids the latent heat loss caused by the phase change of water, improves the utilization efficiency, and is a very promising biomass utilization technology. The hydrothermal liquefaction product needs to be separated before it can be used, and the oil phase and water phase are liquid phase products, the main separation method is to extract the oil phase by organic solvent to obtain the extraction liquid of oil phase and organic solvent, the commonly used organic solvent is dichloromethane, and the extraction liquid can only be obtained after evaporation. Pure oil phase product. The extraction ratio of dichloromethane and oil phase is about 3-5 times, that is, 3-5 volumes of dichloromethane solvent are needed to extract 1 volume of oil phase product.

[0003] Hydrothermal liquefaction of biomass crude oil is a potential fuel substitute, but its instability limits its application. During storage, the complex components and oxygen in the biomass crude oil will cause aging reactions, and the total acid value and water content will change significantly over time (polymerization and condensation reactions), and the polymerization between active components of the biomass oil also increases the viscosity of the biomass oil. Hydroprocessing of biomass oil can improve its stability, reduce oxygen content, increase storage time and application range, and provide the possibility of large-scale application of biomass oil as industrial fuel.

[0004] At present, the main process of biomass crude oil hydrogenation upgrading is to use a rotary evaporator to evaporate and collect the organic solvent in the separated biomass crude oil extraction liquid, and then put the remaining biomass crude oil into a hydrogenation reactor for upgrading. This method is feasible for batch hydrogenation, but for continuous hydrogenation process, the viscosity and density of biomass crude oil are large, the transportation is difficult, there are fewer suitable pumps, and the cost and energy consumption are high. Therefore, by coupling the biomass crude oil extraction liquid separation and hydrogenation upgrading process, reducing the crude oil transportation process, and aiming at the problem that the organic solvent content in the extraction liquid is high, the reactor volume is large after separation, which is not conducive to the hydrogenation process, the volume change of the liftable type effectively improves the upgrading efficiency, reduces the waste of hydrogen, and has important significance for improving the stability of the biomass crude oil continuous hydrogenation upgrading process equipment. SUMMARY

[0005] In order to overcome the defects of the prior art, the present application aims to provide a liftable biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor to solve the technical problems of the prior art, such as difficult crude oil transportation in the continuous hydrogenation upgrading process and large volume of organic solvents in the extraction liquid, which is not conducive to the hydrogenation process.

[0006] The present application is realized by the following technical solutions:

[0007] The liftable biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor comprises a lifting driving device, a plunger structure, a reactor cylinder, a reactor support, a heating assembly and a packing seal structure; the reactor cylinder is placed on the reactor support, the packing seal structure sealing cover is arranged on the top end port of the reactor cylinder, one end of the plunger structure extends into the reactor cylinder through the packing seal structure, the other end is connected with the lifting driving device, and the plunger structure is driven to move up and down in the reactor cylinder through the lifting driving device, the heating assembly is wrapped on the outer side of the reactor cylinder, and the lower part of the reactor cylinder is respectively provided with an inlet and a product outlet, and the upper part of the reactor cylinder is provided with an extractant outlet.

[0008] Preferably, the reactor cylinder comprises a cylindrical cylinder and a semicircular cylinder, the cylindrical cylinder is a through-hole cylinder, the semicircular cylinder is assembled at the bottom end of the cylindrical cylinder through bolts, the packing seal structure sealing cover is arranged at the top end of the cylindrical cylinder, one end of the plunger structure extends into the cylindrical cylinder through the packing seal structure, the heating assembly is wrapped on the outer wall of the cylindrical cylinder, the inlet is arranged on the lower part of the side wall of the cylindrical cylinder, the extractant outlet is arranged on the upper part of the side wall of the cylindrical cylinder, and the product outlet is arranged at the bottom end of the semicircular cylinder.

[0009] Further, the heating assembly comprises a first heating device and a second heating device, and the second heating device and the first heating device are wrapped on the outer wall of the cylindrical cylinder side by side from top to bottom along the long side direction of the cylindrical cylinder.

[0010] Preferably, the outer diameter of the plunger structure corresponds to the inner diameter of the reactor cylinder.

[0011] Preferably, the end of the plunger structure in the reactor cylinder is provided with a catalyst support plate.

[0012] Preferably, the packing seal structure comprises a packing box, packing and a packing gland, the packing box is assembled at the top end of the reactor cylinder, the packing gland is buckled on the packing box and fixed at the top end of the reactor cylinder through the gland bolt, a through hole is formed in the bottom end of the packing gland and the packing box in correspondence, the plunger structure extends into the reactor cylinder through the through holes of the packing gland and the bottom end of the packing box in sequence, and the packing is filled in the gap between the plunger structure and the packing box.

[0013] Preferably, the lifting driving device comprises a rack, a driving box, a rack guide rail, a transmission assembly and a motor, the rack is fixedly connected with the plunger structure vertically through the driving box, the rack guide rail is fixed in the driving box and is in sliding connection with the rack, the transmission assembly is assembled in the driving box and is in driving connection with the rack at one end and with the motor outside the driving box at the other end.

[0014] Preferably, the upper and lower ends of the rack are respectively provided with protrusions for fixing the position of the rack, the lower end protrusion prevents the movement of the plunger caused by the increase in pressure in the reactor during the extraction agent separation process, and the upper end protrusion prevents the downward movement of the rack caused by the gravity of the plunger affecting the volume of the reactor.

[0015] Preferably, the rack is provided with a magnetic protrusion along the long direction for fixing the position of the rack to prevent the movement of the plunger caused by the increase in pressure in the reactor during the hydrogenation process.

[0016] Preferably, the transmission assembly comprises a turbine, a worm and a shaft coupling, one end of the shaft coupling is in driving connection with the motor outside the driving box, the other end of the shaft coupling is assembled with the worm, and one side of the turbine is engaged on the worm and the other side is engaged on the rack.

[0017] Compared with the prior art, the present application has the following beneficial technical effects:

[0018] The present application provides a liftable biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor, which realizes the volume change of the reactor through the lifting driving device, and couples the hydrothermal liquefaction biomass crude oil extraction liquid separation and the biological crude oil catalytic hydrogenation upgrading process. The packing seal structure sealing cover is arranged on the top port of the reactor cylinder, which improves the sealing of the reactor cylinder; the biomass crude oil extraction liquid is introduced into the reactor cylinder through the inlet, the plunger structure can be driven to move upward in the reactor cylinder by the lifting driving device, the volume of the reactor is increased, the organic solvent (dichloromethane) in the extraction liquid is evaporated by heating through the heating assembly, and the dichloromethane vapor is discharged from the upper outlet of the reactor cylinder to realize collection.

[0019] Further, the reactor cylinder comprises a cylindrical cylinder and a semicircular cylinder, the semicircular cylinder is assembled at the bottom end of the cylindrical cylinder through bolts and can be disassembled, which is used for replacing the hydrogenation catalyst and the catalyst support plate and cleaning the reactor.

[0020] Further, the heating assembly comprises a first heating device and a second heating device, the second heating device and the first heating device are wrapped on the outer wall of the cylindrical cylinder body side by side from top to bottom along the length direction of the cylindrical cylinder body, the reactor volume required when the extraction liquid is separated is large, the first heating device and the second heating device are both opened, and uniform heating can be realized; the reactor volume required in the process of hydrogenation upgrading of the bio-crude oil is small, only the first heating device needs to be opened, the heating of the lower side of the cylindrical cylinder body is realized, the energy consumption is effectively reduced, and targeted heating is realized.

[0021] Further, the outer diameter of the plunger structure corresponds to the inner diameter of the reactor cylinder body, and the sealing performance of the space in the reactor cylinder body is improved.

[0022] Further, the catalyst support plate is arranged at the end of the plunger structure in the reactor cylinder body, the catalyst support plate is connected to the vertically placed lower side of the plunger, can effectively contact the bio-crude oil, avoids the deposition and adhesion of the bio-crude oil hydrogenation solid product on the catalyst, prevents the deactivation of the catalyst, and improves the hydrogenation efficiency.

[0023] Further, the packing seal structure comprises a packing box, packing and a packing gland, the packing box is assembled at the top end of the reactor cylinder body, the packing gland is buckled on the packing box and fixed at the top end of the reactor cylinder body through the gland bolt, the packing gland is provided with a through hole corresponding to the bottom end of the packing box, the plunger structure extends into the reactor cylinder body through the through holes of the packing gland and the bottom end of the packing box in sequence, the packing is filled and sealed in the gap between the plunger structure and the packing box, and effective sealing between the reactor cylinder body and the plunger structure is realized.

[0024] Further, in the lifting driving device, the motor drives the worm to rotate through the shaft coupling, the worm drives the worm gear to rotate, the turbine drives the rack to realize up-down movement, the rack drives the plunger to lift, so that the reactor volume is changed, the rack is provided with a guide rail to control the movement track of the rack, and the reactor volume change is accurately controlled. A magnetic protrusion is arranged and used for fixing the position of the rack, so that the plunger movement caused by the reactor internal pressure increase due to heating during the hydrogenation process is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the liftable bio-crude oil extraction liquid separation coupled catalytic hydrogenation reactor in the application;

[0026] Figure 2 It is a structural schematic view of the reactor lifting driving device in the application;

[0027] Figure 3 It is a fixed schematic view of the lifting driving device when the reactor small volume catalytic hydrogenation in the application;

[0028] Figure 4The application is a fixed schematic diagram of lifting driving device for reactor bulk extraction liquid separation and disassembly cleaning and replacement of catalyst support plate.

[0029] In the figure: 1-lifting driving device; 2-plunger structure; 3-reactor cylinder; 4-reactor support; 5-rack; 6-protrusion; 7-driving box; 8-rack guide rail; 9-worm wheel; 10-worm; 11-coupling; 12-motor; 13-magnetic protrusion; 14-stuffing box; 15-stuffing box body; 16-stuffing box bolt; 17-stuffing; 18-catalyst support plate; 19-cylindrical cylinder; 20-extraction agent outlet; 21-inlet; 22-semi-cylindrical body; 23-bolt; 24-product outlet; 25-first heating device; 26-second heating device. DETAILED DESCRIPTION

[0030] In order to make the personnel in the technical field better understand the application scheme, the technical scheme in the embodiments of the application will be described clearly and completely in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, not all. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the application.

[0031] The application will be described in further detail below in combination with the drawings:

[0032] The application aims to provide a liftable biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor to solve the technical problems of difficult crude oil transportation and large volume of organic solvent in extraction liquid in the continuous hydrogenation upgrading process in the prior art, which is not conducive to the hydrogenation process.

[0033] Specifically, according to Figure 1 、 Figure 2 and Figure 3 shown, the liftable biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor

[0034] The lifting driving device 1, the plunger structure 2, the reactor cylinder 3 and the reactor support 4, the lifting driving device 1 is realized once mechanical transmission by motor 12 and worm 10, the worm gear 9 and the worm 10 realize secondary mechanical transmission, the worm gear 9 and the rack 5 realize third mechanical transmission, finally the rack 5 drives the plunger structure 2 to realize lifting movement. The rack 5 is provided with a rack guide rail 8 to control the movement track of the rack 5, and the volume change of the reactor is accurately controlled. The top of the plunger structure 2 is connected with the bottom of the rack 5, which is placed inside the reactor cylinder 3, and the connection is sealed by using packing seal, which can ensure good sealing of the reactor while realizing volume change, the bottom of the plunger structure 2 is provided with a groove for fixing the catalyst support plate 18, the catalyst support plate 18 is placed vertically to reduce the adhesion of solid products after hydrogenation of biological crude oil on the catalyst, avoid catalyst deactivation, reduce the number of reactor disassembly and catalyst replacement, which is conducive to enhancing the stability of continuous catalytic hydrogenation equipment operation, wherein the catalyst support plate 18 can be replaced. The reactor cylinder 3 includes a cylindrical cylinder 19 and a semicircular cylinder 22, which are sealed and connected by bolts 23. When the catalyst in the reactor needs to be replaced and the reactor needs to be cleaned, the plunger structure 2 is driven to the highest point, the bolts 23 are removed, the reactor cylinder is opened, and the inside of the reactor is cleaned with water and a brush. Replace the catalyst support plate 18. The upper side of the cylindrical cylinder 19 is provided with an extractant outlet 20 for discharging organic solvent vapor during the extraction liquid separation process. During the catalytic hydrogenation process, this outlet remains closed. The lower side of the cylindrical cylinder 19 is provided with an inlet 21, which remains closed during the extraction liquid separation process. Two sets of heating devices are provided on the outside of the cylindrical cylinder 19 to control the heating process in sections. During the extraction liquid separation process, both sets of heating devices are opened. Only the first heating device 25 is opened during the catalytic hydrogenation process. The bottom of the semicircular cylinder 22 is provided with a hydrogenated product outlet 24, which remains closed until the end of the reactor reaction. The reactor support 4 is used to fix the reactor.

[0035] Specifically, the lifting driving device 1 includes a drive box 7, a rack guide rail 8, a rack 5, a protrusion 6, a worm gear 9, a worm 10, a shaft coupling 11, a motor 12 and a magnetic protrusion 13. The drive box 7 is fixed to the wall surface or other fixable surface, the rack guide rail 8, the worm gear 9 and the worm 10 are fixed on the drive box 7 to maintain the stability of mechanical transmission, and the thickness of the magnetic protrusion 13 is the same as that of the protrusion 6.

[0036] Among them, the shaft coupling 11 can be a cross coupling, an elastic coupling, a ratchet coupling and the like.

[0037] The motor 12 is a reversible motor that can realize forward and reverse rotation switching.

[0038] The lifting height of the plunger structure 2 is the same as the up and down movement track height of the rack 5.

[0039] Specifically, the rack 5 is located at the lowest point, that is, the reactor volume is the smallest, in the hydro-upgrading stage, at this time the magnetic protrusion 13 needs to be placed at the contact between the rack 5 and the bottom of the rack guide rail 8, as shown in Figure 3 for fixing the position of the rack 5, preventing the force of the plunger structure 2 from rising due to the increase of temperature and pressure in the reactor during the hydrogenation process, changing the reactor volume, maintaining the stability of the reactor volume, after the hydrogenation reaction is completed, the magnetic protrusion 13 is removed, and the rack 5 is restored to be movable.

[0040] Specifically, the packing seal structure includes a packing box 15, packing 17 and a packing gland 14, the packing box 15 is assembled at the top end of the reactor cylinder 3, the packing gland 14 is buckled on the packing box 15 and is fixed at the top end of the reactor cylinder 3 through the gland bolt 16, the packing gland 14 is provided with a through hole corresponding to the bottom end of the packing box 15, the plunger structure 2 extends into the reactor cylinder 3 through the through holes of the packing gland 14 and the bottom end of the packing box 15 in sequence, and the packing 17 is filled and sealed in the gap between the plunger structure 2 and the packing box 15.

[0041] Specifically, the heating assembly includes a first heating device 25 and a second heating device 26, the second heating device 26 and the first heating device 25 are wrapped on the outer wall of the cylindrical cylinder 19 in a side-by-side manner from top to bottom along the length direction of the cylindrical cylinder 19, wherein the length of the second heating device 26 is 3-5 times the length of the first heating device 25, the heating limit of the length of the second heating device 26 is 70-80℃, and the heating limit of the first heating device 25 is 500℃.

[0042] The working principle of the liftable biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor provided by the application is as follows:

[0043] Open the motor 12 to rotate forward, drive the lifting driving device 1, and lift the rack 5 to the highest point, at this time the reactor volume is the largest. Biomass crude oil extraction liquid (a mixture of biological crude oil and organic solvent (dichloromethane) with a volume ratio of 1:3) is input into the reactor through the inlet 21, and the inlet 21 is closed (at this time the product outlet 24 is in a closed state). Open the first heating device 25 and the second heating device 26, and heat to 50℃, open the extraction agent outlet 20, collect organic solvent (dichloromethane) vapor, and after 2h, all the heating devices and the extraction agent outlet 20 are closed. At this time, the organic solvent in the reactor has been completely evaporated, and only biomass crude oil is left. Reverse rotation of the motor 12 drives the lifting driving device 1 to lift the rack 5 to the lowest point, and the magnetic protrusion 13 is placed at the contact between the rack 5 and the bottom of the rack guide rail 8, as shown in Figure 3 at this time the reactor volume is the smallest, as shown in Figure 1As shown. Open the entrance 21, hydrogen replacement reactor air, replacement after maintaining at room temperature initial hydrogen pressure 5.3MPa, close the entrance 21 (at this time the product outlet 24 and extractant outlet 20 are in closed state), open the first heating device 25, heating temperature is 400 DEG C, maintain 1h (hydrogenation upgrading stage). After heating reactor natural cooling to room temperature, pressure relief. Open motor 12 positive rotation, drive lifting drive device 1, the rack 5 is raised to the highest, the magnetic protrusion 13 is placed in the rack 5 and rack guide rail 8 top contact, prevent the plunger structure 2 because of gravity down sliding caused by reactor volume change. From the entrance 21 into the organic solvent to the reactor, extract hydrogenation product, extract end close entrance 21, open product outlet 24 (hydrogenation product is collected in product outlet 24), collect hydrogenation product extract liquid, extract liquid after filtration, centrifugation, separation, evaporation can obtain hydrogenated bio-oil.

[0044] After several (three or more) reactions, open the motor 12 positive rotation, drive lifting drive device 1, the rack 5 is raised to the highest, the magnetic protrusion 13 is placed in the rack 5 and rack guide rail 8 top contact, as shown Figure 4 As shown. Open the entrance 21, hydrogen replacement reactor air, replacement after maintaining at room temperature initial hydrogen pressure 5.3MPa, close the entrance 21 (at this time the product outlet 24 and extractant outlet 20 are in closed state), open the first heating device 25, heating temperature is 400 DEG C, maintain 1h (hydrogenation upgrading stage). After heating reactor natural cooling to room temperature, pressure relief. Open motor 12 positive rotation, drive lifting drive device 1, the rack 5 is raised to the highest, the magnetic protrusion 13 is placed in the rack 5 and rack guide rail 8 top contact, prevent the plunger structure 2 because of gravity down sliding caused by reactor volume change. From the entrance 21 into the organic solvent to the reactor, extract hydrogenation product, extract end close entrance 21, open product outlet 24 (hydrogenation product is collected in product outlet 24), collect hydrogenation product extract liquid, extract liquid after filtration, centrifugation, separation, evaporation can obtain hydrogenated bio-oil.

[0045] In summary, the present application provides a lift type biomass crude oil extraction liquid separation coupled catalytic hydrogenation reactor, hydrogenation reactor includes lifting drive device, plunger structure, reactor cylinder and reactor support; Wherein the lifting drive device adopts worm and worm structure, realize rack lifting movement; The top of the plunger structure is connected with the rack in the lifting transmission device, is placed in the reactor cylinder, and is sealed with the cylinder by using packing; The bottom is provided with a groove for fixing the catalyst support plate; The reactor cylinder includes a cylindrical cylinder and a semicylindrical body, which are connected by bolts; The upper side of the cylindrical cylinder is provided with an extractant outlet, the lower side is provided with an inlet, and the outer side is provided with two sets of heating devices; The bottom of the semicylindrical body is provided with a product outlet; The reactor support is used for fixing the reactor cylinder. The present application changes the volume of the reactor through the lifting structure, realizes the coupling of extraction liquid separation and hydrogenation upgrading, avoids crude oil transportation, and improves the stability of the continuous hydrogenation upgrading process of bio-crude oil.

[0046] Finally, it should be noted that: the above examples are used to illustrate the technical solutions of the present application rather than limit them, although the present application has been described in detail with reference to the above examples, those skilled in the art should understand that: the specific embodiments of the present application can still be modified or replaced equivalently without departing from the spirit and scope of the present application, any modification or equivalent replacement which does not depart from the spirit and scope of the present application should be covered within the protection scope of the claims of the present application.

Claims

1. A liftable biomass crude oil extract separation coupled with catalytic hydrogenation reactor, characterized in that, The reactor includes a lifting drive device (1), a plunger structure (2), a reactor cylinder (3), a reactor support (4), a heating component, and a packing seal structure. The reactor cylinder (3) is placed on the reactor support (4), and the packing seal structure is sealed on the top port of the reactor cylinder (3). One end of the plunger structure (2) extends into the reactor cylinder (3) through the packing seal structure, and the other end is connected to the lifting drive device (1). The lifting drive device (1) drives the plunger structure (2) to move up and down inside the reactor cylinder (3). The heating component is wrapped around the outside of the reactor cylinder (3). The lower part of the reactor cylinder (3) is provided with an inlet (21) and a product outlet (24), and the upper part of the reactor cylinder (3) is provided with an extractant outlet (20). The outer diameter of the plunger structure (2) is set to correspond to the inner diameter of the reactor cylinder (3); The plunger structure (2) has a catalyst support plate (18) at the end inside the reactor cylinder (3). The upper and lower ends of the rack (5) are respectively provided with protrusions (6) to fix the position of the rack. The lower protrusion prevents the plunger from being pushed by the heat and pressure inside the reactor during the separation of the extractant. The upper protrusion prevents the rack from moving downward due to the gravity of the plunger and affecting the volume of the reactor. The rack (5) has magnetic protrusions (13) placed along its long side to fix the position of the rack and prevent the reactor volume from being changed by the piston movement due to the heat and pressure inside the reactor during the hydrogenation process.

2. The liftable biomass crude oil extract separation coupled with catalytic hydrogenation reactor according to claim 1, characterized in that, The reactor body (3) includes a cylindrical body (19) and a semi-cylindrical body (22). The cylindrical body (19) is a through-hole cylinder. The semi-cylindrical body (22) is assembled to the bottom end of the cylindrical body (19) by bolts (23). The packing sealing structure is sealed on the top end of the cylindrical body (19). One end of the plunger structure (2) extends into the cylindrical body (19) through the packing sealing structure. The heating component is wrapped on the outer wall of the cylindrical body (19). The inlet (21) is located on the lower side wall of the cylindrical body (19). The extractant outlet (20) is located on the upper side wall of the cylindrical body (19). The product outlet (24) is located at the bottom end of the semi-cylindrical body (22).

3. The liftable biomass crude oil extract separation coupled with catalytic hydrogenation reactor according to claim 2, characterized in that, The heating assembly includes a first heating device (25) and a second heating device (26). The second heating device (26) and the first heating device (25) are arranged side by side along the long side of the cylindrical body (19) from top to bottom and wrapped around the outer wall of the cylindrical body (19).

4. The liftable biomass crude oil extract separation coupled with catalytic hydrogenation reactor according to claim 1, characterized in that, The packing sealing structure includes a packing box (15), packing (17) and a packing gland (14). The packing box (15) is assembled on the top of the reactor shell (3). The packing gland (14) is fastened to the packing box (15) and fixed to the top of the reactor shell (3) by gland bolts (16). The packing gland (14) and the bottom of the packing box (15) have corresponding through holes. The plunger structure (2) extends into the reactor shell (3) through the through holes at the bottom of the packing gland (14) and the packing box (15). The packing (17) fills and seals the gap between the plunger structure (2) and the packing box (15).

5. A liftable biomass crude oil extract separation coupled with catalytic hydrogenation reactor according to claim 1, characterized in that, The lifting drive device (1) includes a rack (5), a drive box (7), a rack guide rail (8), a transmission assembly, and a motor (12). The rack (5) vertically passes through the drive box (7) and is fixedly connected to the plunger structure (2). The rack guide rail (8) is fixed inside the drive box (7) and is slidably connected to the rack (5). The transmission assembly is assembled inside the drive box (7), with one end connected to the rack (5) and the other end extending out of the drive box (7) and connected to the motor (12) for driving.

6. The liftable biomass crude oil extract separation coupled with catalytic hydrogenation reactor according to claim 1, characterized in that, The transmission assembly includes a turbine (9), a worm (10) and a coupling (11). One end of the coupling (11) extends out of the drive box (7) and is connected to the motor (12) for driving. The other end of the coupling (11) is fitted with the worm (10). One side of the turbine (9) meshes with the worm (10) and the other side meshes with the rack (5).

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