CN116943544A - Upper-inlet lower-outlet radial moving bed reactor - Google Patents
Upper-inlet lower-outlet radial moving bed reactor Download PDFInfo
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- CN116943544A CN116943544A CN202210412938.9A CN202210412938A CN116943544A CN 116943544 A CN116943544 A CN 116943544A CN 202210412938 A CN202210412938 A CN 202210412938A CN 116943544 A CN116943544 A CN 116943544A
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- outer net
- outlet
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- 239000003054 catalyst Substances 0.000 claims abstract description 76
- 239000000376 reactant Substances 0.000 claims abstract description 19
- 239000000047 product Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 21
- 239000007795 chemical reaction product Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000010926 purge Methods 0.000 claims description 5
- 239000012429 reaction media Substances 0.000 abstract description 13
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000011949 solid catalyst Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000006356 dehydrogenation reaction Methods 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 238000006317 isomerization reaction Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006057 reforming reaction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- 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
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/12—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
-
- 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
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/085—Feeding reactive fluids
Landscapes
- 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 discloses an upper-inlet and lower-outlet radial moving bed reactor, which overcomes the defects that a catalyst bed layer in the prior art is fluidized due to the influence of reaction air flow, expensive catalyst is prevented from being carried out by a reaction medium and the like. Including reactor casing, intranet, outer net, catalyst conveyer pipe, reactant entry, product outlet, catalyst entry, catalyst outlet and sealed apron, reactant entry is located the top or the upper portion of reactor casing, and the product outlet is located the bottom or the lower part of reactor casing, and sealed apron is the annular plate, and the level sets up between outer net top and intranet top, the outer net upper end hangs in reactor upper portion, and the outer net bottom sets up the intranet base, and the intranet base outer fringe is connected with the outer net, and the intranet base inner edge supports the intranet, constitutes annular space between intranet and the outer net, and this annular space is catalyst filling space, be provided with guide cylinder and expansion joint in the intranet in the reactor casing, the reactant entry is through guide cylinder intercommunication intranet, and the space that forms between outer net and the reactor casing is the product stream accumulation space, and product outlet intercommunication product stream accumulation space, catalyst entry pass through catalyst conveyer pipe and catalyst filling space intercommunication, catalyst outlet intercommunication catalyst filling space bottom.
Description
Technical Field
The invention belongs to the field of petrochemical industry, and particularly relates to an upper-inlet and lower-outlet radial moving bed reactor.
Background
The moving bed technology is an important processing means in the field of oil refining and chemical industry, is an important process technology for producing high-quality oil products and chemical products, and the core equipment is a radial moving bed reactor. The radial moving bed reactor is characterized in that a catalyst flows from top to bottom in the reactor by means of self gravity through an annular space formed by an outer net and an inner net, a medium flows radially from the outer net to the center of the reactor, reaction products are separated from the catalyst through the inner net after the reaction of a catalyst bed, the above structural form is called a centripetal structural reactor, a typical centripetal structural reactor is shown in fig. 1, and consists of a reactor shell, the inner net, the outer net, a catalyst conveying pipe, a reactant inlet, a product outlet and the like, wherein the reactant inlet is positioned at the top or the upper part of the reactor shell, the product outlet is positioned at the bottom or the lower part of the reactor shell, a reaction medium enters the reactor from the reactant inlet at the top or the upper part, flows from the annular space formed by the reactor shell and the outer net to the center of the reactor, and flows downwards from the inner net through the inner net after the reaction of the catalyst bed, and is led out of the reactor through the inner net and the product outlet at the bottom or the lower part from the inside of the inner net.
Because of the continuous development of moving bed technology, such as propane dehydrogenation technology, a reactor structure form capable of enabling a reaction medium to rapidly enter a catalyst bed layer is urgently needed, the centrifugal structure opposite to the centripetal structure can meet the requirements, the centrifugal structure means that the reaction medium firstly enters the inner net and radially flows around the reactor, sequentially passes through the inner net, the catalyst bed layer and the outer net, and then is led out of the reactor, and in order to meet the requirements, the invention provides a novel up-in and down-out radial moving bed reactor.
Disclosure of Invention
The invention provides an upper-inlet and lower-outlet radial moving bed reactor, which overcomes the defects that a catalyst bed layer in the prior art is fluidized due to the influence of reaction air flow, expensive catalyst is prevented from being carried out by a reaction medium and the like.
The invention provides an upper-in and lower-out radial moving bed reactor, which comprises a reactor shell, an inner net, an outer net, a catalyst conveying pipe, a reactant inlet, a product outlet, a catalyst inlet and a catalyst outlet, wherein the inner net and the outer net are arranged in the reactor shell, and the outer net is positioned outside the inner net, and is characterized in that: the reactor comprises a reactor shell, a reactor inlet, a product outlet, a sealing cover plate, a guide cylinder, an expansion joint, a product outlet, a product conveying pipe, a catalyst filling space and a catalyst inlet, wherein the reactor inlet is positioned at the top or the upper part of the reactor shell, the product outlet is positioned at the bottom or the lower part of the reactor shell, the upper inlet and the lower outlet of the radial moving bed reactor further comprises the sealing cover plate, the sealing cover plate is a circular plate and is horizontally arranged between the top of an outer net and the top of the inner net, the upper end of the outer net is hung at the upper part of the reactor, the bottom of the outer net is provided with an inner net base, the outer edge of the inner net base is connected with the outer net, the inner edge of the inner net base supports the inner net, an annular space is formed between the inner net and the outer net, the annular space is a catalyst filling space, the catalyst inlet is positioned at the upper part or the top of the reactor shell, the catalyst outlet is positioned at the lower part or the bottom of the reactor shell, the guide cylinder and the expansion joint are arranged above the inner net in the reactor shell, the preferential expansion joint is positioned between the guide cylinder and the inner net, the reactant inlet is communicated with the inner net through the guide cylinder, the space formed between the outer net and the reactor shell, the product flow is a product flow accumulating space, the product conveying pipe is communicated with the catalyst filling space, and the catalyst outlet is communicated with the bottom of the catalyst filling space.
The invention is further technically characterized in that: the upper end of the outer net is suspended at the upper part of the reactor through an outer net support, and the outer net support is annular; the lower part of the inner net is supported on an inclined cone-shaped support arranged at the bottom of the outer net so as to be connected with the outer net into a whole, and the inner net system and the outer net system are suspended at the upper part of the reactor through the outer net support, the guide cylinder and the expansion joint.
The invention is further technically characterized in that: the inner net base is in an inclined cone shape, the outer edge of the inner net base is the lowest point of the inner net base, the outer edge of the inner net base is connected with the outer net, and the inner edge of the inner net base supports the inner net.
The invention is further technically characterized in that: the upper space of the reactor above the sealing cover plate is also provided with a purge gas inlet.
The invention is further technically characterized in that: the sealing cover plate is arranged in a blocking mode, namely the sealing cover plate is a circular plate formed by combining a plurality of plates, preferably 2 to 16 circular plates are combined, and reaction medium is prevented from flowing to the reactor space above the cover plate.
The invention is further technically characterized in that: preferably, the product outlet may be one, two or more.
The invention is further technically characterized in that: the internal net is formed by welding internal net V-shaped wires and inclined support rings, the length direction of the internal net V-shaped wires is parallel to the axis of the reactor, the inclined support rings form a certain included angle a with the length direction of the internal net V-shaped wires, the preferable value of the included angle a is 0-45 degrees, and the internal net V-shaped wires are triangular section wires with triangular cross sections.
The invention is further technically characterized in that: the outer net is formed by welding outer net V-shaped wires and annular supporting rings, the length direction of the outer net V-shaped wires is parallel to the axial direction of the reactor, and the annular supporting rings are perpendicular to the outer net V-shaped wires.
The up-in and down-out radial moving bed reactor can be used in the field of oil refining chemical industry to perform the action process of fluid raw materials and solid catalysts (or solid adsorbents), for example, at least one of low-carbon hydrocarbon dehydrogenation reaction, isomerization reaction, reforming reaction, gas desulfurization and liquid phase adsorption, specifically, the solid materials such as the solid catalysts can continuously enter a catalytic reaction zone and axially move downwards, so that the reaction materials enter the reactor from the upper part or the top part of the reactor and radially flow through the catalytic reaction zone to perform cross-flow contact reaction with the solid catalysts, and reaction products flow out from the lower part or the bottom part of the reactor.
The upper inlet and lower outlet radial moving bed reactor has the advantages compared with the prior art that:
1) The upper inlet and lower outlet radial moving bed reactor further comprises a sealing cover plate, wherein the sealing cover plate is a circular plate and is horizontally arranged between the top end of an outer net and the top end of an inner net, the upper end of the outer net is hung on the upper part of the reactor, the bottom end of the outer net is provided with an inner net base, the outer edge of the inner net base is connected with the outer net, and the inner edge of the inner net base supports the inner net. The inner net is connected with the upper inlet through the guide cylinder, and expansion among the inner net, the outer net and the shell is absorbed through the upper part. The expansion energy of the device can absorb expansion differences of different components, and damage to internal parts is avoided. A guide cylinder is arranged above the inner net in the reactor shell, and a reactant inlet is communicated with the inner net through the guide cylinder, so that the requirement of an industrial device that a reaction medium rapidly enters a catalyst bed is met;
2) When the inner net is preferably provided with the inclined support ring, the reaction can change the flow direction of the reaction medium to have the trend of obliquely downwards flowing through the inclined support ring arranged on the inner net while meeting the centrifugal flow of the reaction medium (namely reactants), so that the fluidization trend of the catalyst is overcome, and the abrasion of the catalyst is further reduced because the fluidization trend is overcome;
3) When the upper area of the reactor is preferably provided with the purge gas inlet, the purge gas inlet can continuously purge the upper area, so that the effect of preventing the catalyst from escaping to the upper space can be achieved;
4) The invention can improve the processing capacity and the long-period running capacity of the device.
The invention will now be described in further detail with reference to the drawings and the detailed description, without limiting the scope of the invention.
Drawings
FIG. 1 is a front view of a radial moving bed reactor of the prior art;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a front view of an upper inlet and lower outlet radial moving bed reactor according to the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a front view of the internal network of an upper-in lower-out radial moving bed reactor according to the present invention;
FIG. 6 is a top view of the intranet of FIG. 5;
FIG. 7 is a front view of an upper entry lower exit radial moving bed reactor outer screen according to the present invention;
fig. 8 is a top view of the outer screen of fig. 7.
The reference numerals shown in the figures are:
1-inner net, 2-outer net, 3-catalyst filling space, 4-catalyst inlet, 5-catalyst conveying pipe,
the catalyst comprises a 6-catalyst outlet, a 7-reactant inlet, an 8-product outlet, a 9-reactor shell, a 10-guide cylinder, an 11-inner net base, a 12-outer net support, a 13-sealing cover plate, a 14-balance gas inlet, 15-inner net V-shaped wires, a 16-inclined support ring, 17-outer net V-shaped wires, 18-annular support rings and 19-expansion joints.
Detailed Description
As shown in fig. 1 and 2, the reactor is a radial moving bed reactor commonly used in industry, and is composed of a reactor shell 9, an inner net 1, an outer net 2, a catalyst conveying pipe 5, a reactant inlet 7, a product outlet 8 and the like, wherein the reactant inlet 7 is arranged at the upper part or the top of the reactor shell 9, the product outlet 8 is arranged at the lower part or the bottom of the reactor shell 9, a reaction medium enters the interior of the reactor from the reactant inlet 7, flows towards the center of the reactor from an annular space formed by the reactor shell 9 and the outer net 2, and flows downwards from the interior of the inner net through the product outlet 8 after being reacted by a catalyst bed layer, and is led out of the reactor.
As shown in fig. 3-8, the upper-inlet lower-outlet radial moving bed reactor of the present invention comprises a reactor shell 9, an inner net 1, an outer net 2, a catalyst conveying pipe 5, a reactant inlet 7, a product outlet 8, a catalyst inlet 4 and a catalyst outlet 6, wherein the reactant inlet 7 is positioned at the top or upper part of the reactor shell 9, the product outlet 8 is positioned at the bottom or lower part of the reactor shell 9, the inner net 1 and the outer net 2 are arranged inside the reactor shell 9, the inner net 1, the outer net 2 and the reactor shell 9 are coaxially arranged, the outer net 2 is positioned outside the inner net 1, the upper-inlet lower-outlet radial moving bed reactor further comprises a sealing cover plate 13, the sealing cover plate 13 is a circular ring-shaped plate and horizontally arranged between the top end of the outer net and the top end of the inner net, the upper end of the outer net 2 is hung at the upper part of the reactor, the bottom end of the outer net 2 is provided with an inner net base 11, the outer edge of the inner net base 11 is connected with the outer net 2, the inner edge of the inner net base 11 supports the inner net 1, an annular space is formed between the inner net 1 and the outer net 2, the annular space is a catalyst filling space 3, the catalyst inlet 4 is positioned at the upper part or the top of the reactor shell 9, the catalyst outlet 6 is positioned at the lower part or the bottom of the reactor shell 9, a guide cylinder 10 and an expansion joint 19 are arranged above the inner net 1 in the reactor shell, the expansion joint 19 is positioned between the guide cylinder and the upper part of the inner net, the reactant inlet 7 is communicated with the inner net 1 through the guide cylinder 10, a space formed between the outer net 2 and the reactor shell 9 is a product flow accumulation space, the product outlet 8 is communicated with the product flow accumulation space, the catalyst inlet 4 is communicated with the catalyst filling space 3 through a catalyst conveying pipe 5, and the catalyst outlet 6 is communicated with the bottom of the catalyst filling space 3.
The upper end of the outer net 2 is preferably hung on the upper part of the reactor through an outer net support 12, the outer net support 12 is annular, and the outer net support 12 plays a role in blocking the diffusion of the reacted medium to the reactor space above the outer net support 12 while hanging the outer net 2; the inner net base 11 is preferably in an inclined cone shape, the lower part of the inner net 1 is supported on an inclined cone-shaped support arranged at the bottom of the outer net, so that the inner net and the outer net are connected with the outer net 2 into a whole, and the inner net system is suspended at the upper part of the reactor through the outer net support 12, the guide cylinder 10 and the expansion joint 29.
The sealing cover plate 13 arranged at the top end of the inner net 1 and the outer net 2 can be connected in a blocking annular mode, namely, the sealing cover plate 13 is a circular plate formed by combining a plurality of plates, preferably, a circular plate formed by combining 2 to 16 plates, and the sealing cover plate 13 has the function of blocking the reaction medium from diffusing to the upper space of the reactor. The inner net 1 and the outer net 2 form an annular space, the space is filled with catalyst, the reactor shell 9 is positioned at the outermost layer to seal the whole system, and the catalyst passes through the annular space formed by the inner net 1 and the outer net 2 from top to bottom by virtue of self gravity.
The inner net 1 is formed by welding inner net V-shaped wires 15 and inclined support rings 16, the length direction of the inner net V-shaped wires 15 is parallel to the axis of the reactor, the inclined support rings 16 form a certain included angle a with the length direction of the inner net V-shaped wires 15, the value of the preferable included angle a is 0-45 degrees, and the inner net V-shaped wires are triangular section wires with triangular cross sections.
The outer net 2 is formed by welding outer net V-shaped wires 17 and annular supporting rings 18, the length direction of the outer net V-shaped wires 17 is parallel to the axial direction of the reactor, and the annular supporting rings 18 are perpendicular to the outer net V-shaped wires 17.
As shown in FIG. 3, a simple working process of the upper-inlet and lower-outlet radial moving bed reactor of the invention is as follows: the catalyst enters the catalyst filling space 3 from the catalyst inlet 4 through the catalyst conveying pipe 5 and moves downwards along the axial direction, the catalytic reaction medium enters the inner net 1 from the reactant inlet 7 at the upper part of the reactor through the guide cylinder 10, flows around the reactor after being guided by the inclined support ring 16 of the inner net 1, radially passes through the annular catalyst filling space 3 filled with the catalyst and contacts and reacts with the catalyst in a cross-flow manner, the reaction product flows out of the reactor from the product outlet 8 at the lower part of the reactor after passing through the outer net to isolate the catalyst, the upper space of the reactor above the sealing cover plate 13 is provided with the balance gas inlet 14, the blowing gas is introduced to continuously blow the top area of the reactor, the pressure of the blowing gas is usually slightly higher than the pressure of the reaction medium, the pressure balance is achieved, and the catalyst is prevented from running out of the space above the sealing cover plate 13.
Claims (10)
1. The utility model provides an upper inlet and lower outlet radial moving bed reactor, includes reactor casing, intranet, outer net, catalyst conveyer pipe, reactant entry, result export, catalyst entry and catalyst export, and intranet and outer net set up inside the reactor casing, and the outer net is located the intranet outside, its characterized in that: the reactor comprises a reactor shell, a reaction product inlet, a product outlet, a guide cylinder, an expansion joint, an outer net, a catalyst conveying pipe, a catalyst filling space and a catalyst outlet, wherein the reaction product inlet is positioned at the top or the upper part of the reactor shell, the product outlet is positioned at the bottom or the lower part of the reactor shell, the upper inlet and the lower outlet of the radial moving bed reactor further comprises the sealing cover plate, the sealing cover plate is a circular plate and is horizontally arranged between the top of the outer net and the top of the inner net, the upper end of the outer net is hung at the upper part of the reactor, the bottom of the outer net is provided with the inner net base, the outer edge of the inner net base is connected with the outer net, the inner edge of the inner net base supports the inner net, an annular space is formed between the inner net and the outer net, the catalyst inlet is positioned at the upper part or the upper part of the reactor shell, the catalyst outlet is positioned at the lower part or the bottom of the reactor shell, the guide cylinder and the expansion joint are arranged above the inner net in the reactor shell, the reaction product inlet is communicated with the inner net through the guide cylinder, the space formed between the outer net and the reactor shell is a product flow accumulating space, the product outlet is communicated with the product flow accumulating space, the catalyst conveying pipe is communicated with the catalyst filling space, and the catalyst outlet is communicated with the bottom of the catalyst filling space.
2. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the upper end of the outer net is suspended at the upper part of the reactor through an outer net support, and the outer net support is annular; the lower part of the inner net is supported on an inclined cone-shaped support arranged at the bottom of the outer net so as to be connected with the outer net into a whole, and the inner net system and the outer net system are suspended at the upper part of the reactor through the outer net support, the guide cylinder and the expansion joint.
3. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the expansion joint is positioned between the guide cylinder and the upper part of the inner net.
4. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the inner net base is in an inclined cone shape, the outer edge of the inner net base is the lowest point of the inner net base, the outer edge of the inner net base is connected with the outer net, and the inner edge of the inner net base supports the inner net.
5. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the upper space of the reactor above the sealing cover plate is also provided with a purge gas inlet.
6. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the sealing cover plate is arranged in a blocking mode.
7. An upper entry lower exit radial moving bed reactor as defined in claim 6 wherein: the sealing cover plate is a circular plate formed by combining 2 to 16 plates.
8. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the product outlet may be one or more than two.
9. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the internal net is formed by welding internal net V-shaped wires and inclined support rings, the length direction of the internal net V-shaped wires is parallel to the axis of the reactor, the inclined support rings form a certain included angle a with the length direction of the internal net V-shaped wires, the preferable value of the included angle a is 0-45 degrees, and the internal net V-shaped wires are triangular section wires with triangular cross sections.
10. An upper inlet and lower outlet radial moving bed reactor as claimed in claim 1, wherein: the outer net is formed by welding outer net V-shaped wires and annular supporting rings, the length direction of the outer net V-shaped wires is parallel to the axial direction of the reactor, and the annular supporting rings are perpendicular to the outer net V-shaped wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412938.9A CN116943544A (en) | 2022-04-20 | 2022-04-20 | Upper-inlet lower-outlet radial moving bed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210412938.9A CN116943544A (en) | 2022-04-20 | 2022-04-20 | Upper-inlet lower-outlet radial moving bed reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116943544A true CN116943544A (en) | 2023-10-27 |
Family
ID=88460689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210412938.9A Pending CN116943544A (en) | 2022-04-20 | 2022-04-20 | Upper-inlet lower-outlet radial moving bed reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116943544A (en) |
-
2022
- 2022-04-20 CN CN202210412938.9A patent/CN116943544A/en active Pending
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