CN116764552A - Tubular reactor device and tubular reactor catalyst cannula filling method - Google Patents
Tubular reactor device and tubular reactor catalyst cannula filling method Download PDFInfo
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- CN116764552A CN116764552A CN202310976035.8A CN202310976035A CN116764552A CN 116764552 A CN116764552 A CN 116764552A CN 202310976035 A CN202310976035 A CN 202310976035A CN 116764552 A CN116764552 A CN 116764552A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 99
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000003780 insertion Methods 0.000 claims description 27
- 230000037431 insertion Effects 0.000 claims description 26
- 238000009423 ventilation Methods 0.000 claims description 26
- 239000003086 colorant Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 4
- 241001631457 Cannula Species 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000017525 heat dissipation Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002627 tracheal intubation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
- B01J8/06—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds in tube reactors; the solid particles being arranged in tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/001—Controlling catalytic processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention relates to a tubular reactor device and a tubular reactor catalyst cannula filling method, wherein the tubular reactor device comprises a reactor, the reactor is divided into an upper layer, a middle layer and a lower layer, the upper layer is used for receiving external reaction materials to enter the reactor, the middle layer is used for carrying out material reaction, and the lower layer is used for collecting the materials after the material reaction; a plurality of tubes are distributed on the middle layer according to a rule, each tube adopts a cannula to fill catalyst, and the cannula is arranged at the top end of the tube; the inner diameter of the cannula is smaller than that of the tube array, and the opening of the cannula is 10-15mm. The catalyst is filled into the tube array from the opening of the cannula at most two at a time, so that the uniformity of the catalyst in the tube array is ensured, and the catalyst cannot bridge in the tube array; because the space occupied by the tubes in the tubes is consistent, when the catalyst cannot fall down from the tubes to be filled, each tube is filled with the catalyst, and the requirement of consistent dosage and empty height is basically met.
Description
Technical Field
The invention belongs to the technical field of chemical equipment, and particularly relates to a tubular reactor device and a tubular reactor catalyst cannula filling method.
Background
Before the production and operation of a tubular reactor device in the petrochemical industry field, a certain amount of catalyst needs to be filled in the tubular reactor, the catalyst is required to be uniformly distributed in a tube array, the height is uniform, the pressure drop of air flow passing through a tube bundle is uniform, and therefore the production device can be ensured to operate stably under high load for a long period, and the service period of the catalyst is ensured.
The existing tube array catalyst filling modes include the following two modes:
1. steel wire mesh is paved on the surface of the tube bundle, and the bulk mode is as follows: because the reticular baffle formed by the steel wire mesh on the surface of the tube bundle cannot be the same on the surface of each tube bundle, and the speed of different catalyst spreading and spraying of the catalyst accumulation amount on the surface of the tube bundle exists when the tube bundle is artificially spread and filled, and the like, the catalyst filling quality and the uniformity of pressure drop can be influenced. Therefore, the amount of work required to be adjusted after the completion of the filling is large, and the filling consistency is not ensured.
2. The fixed hopper material is quantitatively filled in a mode that: according to previous filling experience, the tube bundles are screened, weighed and packaged in advance according to the theoretical filling weight of each tube bundle design, and are filled by using a fixed hopper. In combination with the summary of the repeated filling before, the opening of the feed opening of the filling hopper has deviation, the speed of manual feeding in the hopper is inconsistent, the suction force of the hopper is different, and the deviation and the error of manual operation exist between the hoppers in each reactor. Therefore, the pressure drop qualification rate after the filling is finished in the mode is not guaranteed, the adjustment work is large, and the equal filling of each tube bundle originally supposed is not guaranteed for the reasons.
In Chinese patent document CN213254346U, a tube array type reactor catalyst fixed bed is disclosed, wherein the fixed bed consists of a plurality of circumferentially distributed tubes, the outer part of each tube array is provided with an axially uniformly distributed arc-shaped heat dissipation sleeve, and the arc-shaped heat dissipation sleeve is provided with circumferentially uniformly distributed through holes; gaps are reserved between the arc-shaped heat dissipation sleeves on two adjacent tubulars, the fixed bed further comprises a feeding disc, a plurality of conical blanking hoppers distributed circumferentially are arranged at the bottom of the feeding disc, insertion tubes are arranged at the bottom of the conical blanking hoppers, the number of the insertion tubes is the same as that of the tubulars, when feeding, the insertion tubes are inserted into the tubulars, and the position distribution of the insertion tubes is the same as that of the tubulars. When the catalyst is added to the fixed bed (consisting of a plurality of circumferentially distributed tubes), the catalyst does not need to be added to a single tube, the feeding disc can be placed above the fixed bed (each insertion tube is inserted into the tube), the catalyst is added into the feeding disc, and the catalyst enters the tube through the conical funnel, so that the adding efficiency of the catalyst is improved. However, the technical scheme cannot ensure that the catalyst amount filled in each tube array is consistent, and the empty height of each tube array is not consistent, so that the pressure drop of each tube array cannot be ensured to be satisfactory.
Therefore, it is necessary to develop a new tubular reactor apparatus that results in high pressure drop yield after filling and better overall uniformity.
Disclosure of Invention
The object of the present invention is to provide a tubular reactor device filled with catalyst through a cannula having an inner diameter smaller than the inner diameter of the tube array.
In order to solve the technical problems, the invention adopts the technical scheme that the tubular reactor device comprises a reactor, wherein the reactor is divided into an upper layer, a middle layer and a lower layer, the upper layer is used for receiving external reaction materials to enter the reactor, the middle layer is used for carrying out material reaction, and the lower layer is used for collecting the materials after reaction; a plurality of tubes are distributed on the middle layer according to a rule, each tube adopts a cannula to fill catalyst, and the cannula is arranged at the top end of the tube; the inner diameter of the cannula is smaller than that of the tube array, and the opening of the cannula is 10-15mm.
The catalyst specification is usually 5×5 flaked regular particles or spherical regular particles with the diameter of about 6mm, so that the catalyst is filled into the tube array from the opening of the insertion tube at most two at a time, the catalyst particles drop down one by one, the uniformity of the catalyst in the tube array is ensured, and the catalyst cannot bridge in the tube array; because the space occupied by the tubes in the tubes is consistent, when the catalyst cannot fall down from the tubes to be filled, each tube is filled with the catalyst, and the requirement of consistent dosage and empty height is basically met.
Before the petrochemical equipment operates, a certain amount of catalyst is filled in the tubular reactor, the catalyst is required to be uniformly distributed in the tube array and have uniform height, and the pressure drop of air flow passing through the tube bundle (tube array) is uniform, so that the production equipment can operate stably under high load for a long period, and the service period of the catalyst is ensured.
Preferably, the cannula comprises a flow rate control tube, and one end of the flow rate control tube is connected with a base; the turnup cross-sectional area of the base is larger than the cross-sectional area of the tube array.
The flow rate control tube is used for controlling the speed of catalyst particles falling from the opening, avoiding bridging and ensuring that the catalyst particles are uniformly distributed in the library; the flanging cross-sectional area of the base is larger than that of the tube array, and the structure is mainly used for enabling the insertion tube to be located at the top end of the tube array, so that position change caused by shaking or other reasons is avoided.
Meanwhile, the base fills up gaps of the tube array (tube bundle), precious catalysts are prevented from falling into middle gaps of the tube array of the tube bundle, material waste is avoided, the length of the flow rate control tube can be calculated according to different tube bundles and different catalyst filling bulk densities, different catalyst falling speeds can be controlled according to different bulk density requirements, the requirement of the bulk density is met, meanwhile, catalyst pulverization caused by overspeed falling of the catalyst is avoided, the service life of the catalyst is prolonged effectively, and production output is greatly improved for customers.
Preferably, the base is regular hexagon, the central hole of the base is used as the opening of the cannula, the central aperture of the base is smaller than the inner diameter of the flow rate control tube, and the inner diameter of the flow rate control tube is not more than 20mm; the length of the cannula is 300-400mm, and the height of the base is 40-55mm.
A plurality of tubes can be distributed on a fixed bed of the tubular reactor device, and the base of the insertion tube is in a regular hexagon, so that the insertion tube is distributed on the fixed bed more symmetrically after being inserted into the tubes, and the insertion tube is tightly connected with the insertion tube without displacement; the central aperture is smaller than the inner diameter of the flow rate control pipe, and the filled catalyst particles drop into the tube array one by one, so that bridging is avoided, and the filling is more ordered; the size of the insertion tube ensures that the filling amount of the tube nest catalyst is enough, and a certain empty height of the tube nest is ensured.
Preferably, a spring is installed at the bottom of the tube array, a lower ventilation layer is paved on the supporting spring, and a catalyst layer is filled between the lower ventilation layer and the upper ventilation layer.
The spring is mainly used for supporting the ventilation layer and the catalyst layer in the tube array; the ventilation layer has ventilation effect, and the reactant materials entering the tube array from the upper layer of the tubular reactor device enter the lower layer through the tube array after reacting; the catalyst layer can sink due to partial stripping of the catalyst in the use process, and the ventilation layer can keep the pressure drop of each tube array consistent as much as possible.
Preferably, the middle layer is further provided with a plurality of heat exchange tubes, and the heat exchange tubes and the tube arrays are arranged in a staggered manner.
Preferably, the upper layer is provided with a material inlet for conveying reaction material into the reactor and a first person hole for an operator to enter and exit the upper layer of the reactor; a second manhole is arranged on the lower layer, and is used for operators to enter and exit the lower layer of the reactor; the bottom of the lower layer is converged to form a collecting port of the connecting pipeline.
An operator enters the upper layer through the first person hole, so that the operation can be performed on the tube array at the middle layer, and other operation works can be performed; the operator enters the upper layer through the second manhole, so that the operation can be performed on the bottom of the tube nest of the middle layer, and other operation works can be performed.
The tubular reactor device of the invention has uniform and consistent catalyst filling requirements; in the whole reaction system, for example, the filling requirements of a single set of four reactors are uniform, and the filling requirements of two sets of systems are consistent, so that the difficulty is high, and the error of manual operation in the process needs to be avoided as much as possible; the quality of the catalyst filling quality directly relates to whether the device can run under high load for a long period, including the service period of the catalyst, so that the catalyst is filled by the cannula, and the error of manual operation is effectively avoided.
The invention provides a method for filling a catalyst cannula of a tubular reactor, wherein the tubular reactor is provided with a plurality of tubes in a regular distribution, and the method comprises the following steps:
s1: a spring is arranged at the bottom of a tube array in the reactor and is used for supporting other fillers in the reactor;
s2: a lower ventilation layer is filled above the springs, and the heights of the upper end surfaces of the lower ventilation layers in each tube array are the same;
s3: a cannula is inserted into each tube array, and the filled catalyst passes through the cannula and enters the tube array to form a catalyst layer; wherein no more than 3 packed catalysts enter the tube array at the same time (the "particles" herein are not limiting to the shape of the catalyst, for example, a sheet-like catalyst, meaning 3 sheets);
s4: and after the catalyst in the step S3 is filled, taking out the cannulas in all the tubulars.
By adopting the steps, a cannula is inserted into each tube array for filling the catalyst, so that the requirements of quantitative filling, fixed height and fixed pressure drop of the catalyst are met; the surface catalyst of each tube array (tube bundle) falls down uniformly and does not bridge due to the uniform opening size of the surface of the cannula. After filling, taking out each insertion tube, wherein the residual empty heights at the top of all the tube bundles are consistent, the pressure drop acceptance rate is more than 98%, and the insertion tubes used by a plurality of reactors of a single system are the same, so that the uniformity of the filling integrity is good.
Preferably, the method further comprises the step of S5: measuring the pressure drop of all the tubes; for the tubes with inconsistent pressure drop, catalyst loading dose adjustment was performed.
Preferably, the method further comprises the step of S6: filling an upper ventilation layer on the catalyst layer, wherein the upper end surface of the upper ventilation layer is flush with the end surface of the tube array; after each of the different steps S1-S6, the top ends of the tubulations are marked with caps of different colors.
After each step is finished, the cover with different colors is used for marking, so that errors and omission are avoided, and the acceptance rate is improved.
Preferably, before the step S5, the method further includes a step S4-1: the empty height remaining for all of the cannulas from which the cannula was withdrawn was measured.
The tubular reactor catalyst intubation filling method of the invention combines the special requirements of the catalyst filling process, can greatly improve the filling efficiency of the tubular reactor, avoid errors, save a great deal of working time, simultaneously avoid a great deal of precious material waste generated in the catalyst filling process, greatly reduce the oxidation-reduction reaction and secondary pollution caused by the exposure of the catalyst in the air, improve the production efficiency, reduce the filling cost and save a great deal of filling time.
Drawings
The following is a further detailed description of embodiments of the invention with reference to the accompanying drawings:
FIG. 1 is a schematic view of the tubular reactor structure of the present invention;
FIG. 2 is a schematic view of the overall structure of the cannula;
FIG. 3 is a schematic view of a split construction of a cannula;
FIG. 4 is a schematic view of the base structure of the cannula of FIG. 2;
FIG. 5 is a schematic view of the structure of a tubulation;
FIG. 6 is a schematic flow diagram of a tubular reactor catalyst cannula packing method of the present invention;
FIG. 7 is a schematic view (partial) of the distribution of the tubulars in a stationary bed;
wherein: 1-reactor, 2-upper layer, 3-middle layer, 4-lower layer, 5-column tube, 501-spring, 502-lower ventilation layer, 503-catalyst layer, 504-upper ventilation layer, 6-insertion tube, 601-opening, 602-flow rate control tube, 603-base, 604-flanging, 605-central hole, 7-heat exchange tube, 8-material inlet, 9-first manhole, 10-second manhole, 11-collecting port, 12-fixed bed, 13-skirt, 14-shell, 15-transitional connecting pipeline.
Detailed Description
The tubular reactor device of the invention, as shown in figure 1, comprises a reactor 1, wherein the reactor 1 is provided with a shell 14, the shell 14 is divided into an upper layer 2, a middle layer 3 and a lower layer 4, the three layers are arranged, and corresponding structural components can be arranged in each layer structure, so that the structure is compact; wherein the upper layer 2 is used for receiving external reaction materials into the reactor 1, the middle layer 3 is used for carrying out material reaction, and the lower layer 4 is used for collecting the materials after the material reaction; a plurality of tubes 5 (thousands or even tens of thousands of tubes are distributed according to the size of the tubular reactor device) are regularly distributed in the middle layer 3, specifically, the tubes 5 are all distributed on a fixed bed 12, the fixed bed 12 also belongs to a structural component of the middle layer 3, each tube 5 is independently filled with a catalyst by a tube insertion 6, the tube insertion 6 is arranged at the top end of the tube insertion 5, and after the catalyst is filled, the tube insertion 6 is conveniently taken out from the top end; the inner diameter of the insertion tube 6 is smaller than that of the tube nest 5, the opening of the insertion tube 6 is 10-15mm, the opening is preferably 14mm in the embodiment, and at most two catalyst particles simultaneously fall into the tube nest 5 at the same time.
The cannula 6 comprises a flow rate control tube 602, and a base 603 is connected to one end of the flow rate control tube 602; the flange 604 of the base 603 has a larger cross-sectional area than the cross-sectional area of the tube array 5, as shown in fig. 2-4.
The base 603 is of a regular hexagon structure, so that adjacent insertion pipes are tightly connected after the insertion pipes 6 are arranged, gaps are not generated, and the catalyst is prevented from falling into the gaps or being scratched by the gaps; the central hole 605 of the base 603 is used as an opening 601 of the cannula 6, the central aperture of the base 603 is smaller than the inner diameter of the flow rate control tube 602, and the inner diameter of the flow rate control tube 602 is not more than 20mm; the length of the insertion tube 6 is 300-400mm, a certain empty height is left in the tube array 5 after the insertion tube 6 is taken out, and the height of the base 603 is 40-55mm.
A spring 501 is installed at the bottom of the tube array 5, a lower ventilation layer 502 is paved on the supporting spring 501, and a catalyst layer 503 is filled between the lower ventilation layer 502 and the upper ventilation layer 504, as shown in fig. 5; it should be noted that the material of the lower ventilation layer 502 and the upper ventilation layer 504 may be ceramic rings or ceramic balls.
The middle layer 3 is also provided with a plurality of heat exchange tubes 7, and the heat exchange tubes 7 and the tubulation 5 are arranged in a staggered way, so that the tubulation in the reactor is uniform in heat exchange, and the reaction process is in a moderate temperature range.
The upper layer 2 is provided with a material inlet 8 and a first manhole 9, wherein the material inlet 8 is used for conveying reaction materials into the reactor 1, and the first manhole 9 is used for operators to enter and exit the upper layer 2 of the reactor 1; a second manhole 10 is provided in the lower layer 4, the second manhole 10 being used for operator access to the lower layer 4 of the reactor 1, such as when installing a spring 501, i.e. through the second manhole 10; the bottom of the lower layer 4 is converged to form a collecting port 11 of a connecting pipeline, as can be seen from fig. 1, the collecting port 11 is connected with an arc-shaped transitional connecting pipeline 15 at the bottom of the reactor 1, and the transitional connecting pipeline 15 is designed to be arc-shaped, so that materials collected at the collecting port 11 can not be blocked, and the materials can be directly conveyed to other devices of a production process system for treatment along the arc-shaped transitional connecting pipeline 15; the upper layer 2 and the lower layer 4 are provided with heights which can allow operators to operate; a skirt 13 is arranged below the lower layer 4, the skirt 13 being used to support the whole reactor 1, the upper layer 2 and the lower layer 4 being in gas flow communication via a tube array 5.
In this embodiment, the inner diameter of the tube array 5 may be designed to be 28-50mm and the height may be in the range of 5000-12000 mm.
The main flow of the method for filling the tubular reactor catalyst cannula of the embodiment is shown in figure 6; the tubular reactor has a plurality of tubes 5 regularly distributed as shown in fig. 7 (partially selected), and comprises the following steps:
s1: at the bottom of the tube array 5 in the reactor, springs 501 are installed for supporting other fillers inside;
s2: a lower ventilation layer 502 is filled above the springs 501, and the heights of the upper end surfaces of the lower ventilation layers 502 in each tube array 5 are the same;
s3: a cannula 6 is inserted into each of the tubulars 5, and the packed catalyst passes from the cannula 6 into the tubulars 5 to form a catalyst layer 503; wherein, the amount of the catalyst filled into the tube array 5 at the same time is not more than 3; specifically, the catalyst is spread on the fixed bed 12, and a brush can be adopted to gently flick the catalyst, so that the speed of one or two catalysts falls into the tube array 5;
s4: after the catalyst loading in step S3 is completed, the insertion tubes 6 in all the tubes 5 are taken out.
The method also comprises the step S4-1: the remaining empty height measurement is performed for all the tubulars 5 from which the cannula 6 is withdrawn.
The method also comprises the step S5: pressure drop measurements were made for all of the tubulars 5; for the tube array 5 having inconsistent pressure drop, catalyst loading amount adjustment was performed.
The method also comprises the step S6: filling an upper ventilation layer 504 on the catalyst layer 503, wherein the upper end surface of the upper ventilation layer 504 is flush with the end surface of the tubulation 5; after each different step is completed in the step S1-the step S6, the top ends of the tubulars 5 are marked with caps of different colors, so as to prevent omission of operation for a certain tubular.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be embodied and described herein, it will be understood that the foregoing description is merely illustrative of the invention and not in any way limiting, of the invention, and that any changes, substitutions and alterations may be made herein without departing from the spirit and principles of the invention, such as for example, variations in shape or materials of certain parts; are intended to be included within the scope of the present invention.
Claims (10)
1. A tubular reactor device comprising a reactor, wherein the reactor is divided into an upper layer, a middle layer and a lower layer, wherein the upper layer is used for receiving external reaction materials to enter the reactor, the middle layer is used for carrying out material reaction, and the lower layer is used for collecting materials after reaction; a plurality of tubes are distributed on the middle layer according to a rule, each tube adopts a cannula to fill catalyst, and the cannula is arranged at the top end of the tube; the inner diameter of the cannula is smaller than that of the tube array, and the opening of the cannula is 10-15mm.
2. The tubular reactor device according to claim 1, wherein the cannula comprises a flow rate control tube, and a base is connected to one end of the flow rate control tube; the turnup cross-sectional area of the base is larger than the cross-sectional area of the tube array.
3. The tubular reactor device according to claim 2, wherein the base is in the shape of a regular hexagon, the central hole of the base serves as the opening of the insertion tube, the central aperture of the base is smaller than the inner diameter of the flow rate control tube, and the inner diameter of the flow rate control tube is not more than 20mm; the length of the cannula is 300-400mm, and the height of the base is 40-55mm.
4. A tubular reactor device according to claim 2, wherein the bottom of the tube array is provided with a spring, a lower gas permeable layer is laid on top of the support spring, and a catalyst layer is filled between the lower gas permeable layer and the upper gas permeable layer.
5. A tubular reactor device according to claim 1, wherein the middle layer is further provided with a plurality of heat exchange tubes, the heat exchange tubes being staggered with the tubes.
6. A tubular reactor device according to any one of claims 1 to 5, wherein the upper layer is provided with a material inlet for delivering reaction material into the reactor and a first man hole for an operator to enter and exit the upper layer of the reactor; a second manhole is arranged on the lower layer, and is used for operators to enter and exit the lower layer of the reactor; the bottom of the lower layer is converged to form a collecting port of the connecting pipeline.
7. A method for filling a catalyst cannula of a tubular reactor, wherein the tubular reactor is provided with a plurality of tubes in a regular distribution, is characterized by comprising the following steps:
s1: a spring is arranged at the bottom of a tube array in the reactor and is used for supporting other fillers in the reactor;
s2: a lower ventilation layer is filled above the springs, and the heights of the upper end surfaces of the lower ventilation layers in each tube array are the same;
s3: a cannula is inserted into each tube array, and the filled catalyst passes through the cannula and enters the tube array to form a catalyst layer; wherein, the amount of the catalyst filled into the tube array is not more than 3 at the same time;
s4: and after the catalyst in the step S3 is filled, taking out the cannulas in all the tubulars.
8. The method for loading a tubular reactor catalyst cannula according to claim 7, further comprising step S5: measuring the pressure drop of all the tubes; for the tubes with inconsistent pressure drop, catalyst loading dose adjustment was performed.
9. The method for loading a tubular reactor catalyst cannula according to claim 8, further comprising step S6: filling an upper ventilation layer on the catalyst layer, wherein the upper end surface of the upper ventilation layer is flush with the end surface of the tube array; after each of the different steps S1-S6, the top ends of the tubulations are marked with caps of different colors.
10. The method for loading a tubular reactor catalyst cannula according to claim 8, further comprising step S4-1 of: the remaining empty height measurements were performed on all of the tubes from which the cannula was withdrawn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310976035.8A CN116764552A (en) | 2023-08-04 | 2023-08-04 | Tubular reactor device and tubular reactor catalyst cannula filling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310976035.8A CN116764552A (en) | 2023-08-04 | 2023-08-04 | Tubular reactor device and tubular reactor catalyst cannula filling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116764552A true CN116764552A (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310976035.8A Pending CN116764552A (en) | 2023-08-04 | 2023-08-04 | Tubular reactor device and tubular reactor catalyst cannula filling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116764552A (en) |
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2023
- 2023-08-04 CN CN202310976035.8A patent/CN116764552A/en active Pending
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