CN116265075A - Catalyst loading and unloading device and application thereof - Google Patents
Catalyst loading and unloading device and application thereof Download PDFInfo
- Publication number
- CN116265075A CN116265075A CN202111537507.7A CN202111537507A CN116265075A CN 116265075 A CN116265075 A CN 116265075A CN 202111537507 A CN202111537507 A CN 202111537507A CN 116265075 A CN116265075 A CN 116265075A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- catalyst loading
- loading
- reinforcing
- unloading device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 98
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 38
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000003351 stiffener Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 10
- 238000005429 filling process Methods 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Images
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
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/002—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor with a moving instrument
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 application discloses a catalyst loading and unloading device and application thereof, wherein the catalyst loading and unloading device comprises a support grid plate with air holes and N reinforcing columns which are fixed on the periphery of the support grid plate and are used for positioning a catalyst; wherein N is more than or equal to 3, and N is a natural number. The catalyst loading and unloading device provided by the application can effectively relieve the problem that the catalyst is difficult to take out and replace due to carbon deposition expansion; the problem of crushing in the catalyst sinking process in the catalyst filling process is effectively reduced, so that the convenience in taking out the catalyst is effectively improved, and the catalyst loading and unloading efficiency is improved.
Description
Technical Field
The application relates to a catalyst loading and unloading device and application thereof, and belongs to the field of chemistry and chemical engineering.
Background
The catalyst filling is divided into two types, namely common filling (lyophobic filling and bagged filling) and tight filling. The difference is that whether external driving force is used in the filling process or not is used for improving the filling quantity and the filling uniformity of the catalyst. The catalyst is taken out in a destructive manner, but most of the taken catalyst is required to be explored by other process parameters in laboratory evaluation, so that the integrity of the catalyst needs to be protected.
Aiming at the existing long column reactor catalyst taking out and filling process, when the granular catalyst is filled in the reactor, the reactor is blocked by a large amount of powder due to the fact that the distance from the bottom of the reactor is higher, a cloth bag filling method or a metal sheet conveying batch filling method or direct free falling filling method is adopted in industry, and the catalyst is crushed to generate a large amount of powder; meanwhile, the method aims at the problems that the loading of the integral honeycomb ceramic catalyst is also damaged, and then the pore channels of the catalyst are blocked, so that the pressure drop of the reactor is suddenly increased, and the like.
Disclosure of Invention
In order to solve the above problems, the present application provides a catalyst loading and unloading apparatus suitable for a high aspect ratio reactor. The problem that the catalyst is difficult to take out and replace due to carbon deposition expansion can be effectively solved.
In one aspect of the present application, there is provided a catalyst loading and unloading device including a support grid having air holes, and N reinforcing columns fixed to the outer periphery of the support grid for catalyst positioning;
wherein N is more than or equal to 3 and less than or equal to 8, and N is a natural number.
Optionally, the reinforcement posts are uniformly distributed on the periphery of the support grid.
Optionally, the support grid has a shape that conforms to the catalyst.
Optionally, the N is a natural number from 3 to 6.
Optionally, the reinforcement column has an outer diameter compatible with the catalyst.
The reinforcement column serves to locate the packed catalyst while reinforcing the strength of the device.
Optionally, the catalyst loading and unloading device further comprises M identical reinforcing rings, wherein M is a natural number of 1-5.
The function of the reinforcement ring is to increase the strength of the device.
Optionally, the single stiffener ring includes N 1 Identical stiffener ring chunks;
wherein N is more than or equal to 3 1 Less than or equal to 6, and N is a natural number;
optionally, the reinforcing ring block is a circular arc ring block which is adapted to the outer contour of the catalyst;
optionally, a stiffener ring assembly is secured between each two stiffener posts.
Optionally, the thickness of the reinforcing ring is 0.5-1 mm.
Optionally, the periphery of the catalyst loading device further comprises a screen;
the screen mesh is 5-30 mesh screen mesh.
The screen mesh is used for effectively protecting the damage problem of the catalyst in the process of filling and taking out, and meanwhile, the problem that the granular catalyst is difficult to take out in the high-length-diameter-ratio reactor is solved. And meanwhile, the handle on the reinforcing column is convenient to take out the catalyst loading and unloading device under the stress.
Optionally, a reinforcing ring is arranged at the upper end of the catalyst loading and unloading device;
the reinforcing ring is provided with a foldable push-pull handrail, so that the whole catalyst loading and unloading device can be conveniently taken out.
In yet another aspect of the present application, there is provided a use of the above-described catalyst loading device for loading and unloading a catalyst selected from at least one of a honeycomb ceramic monolith catalyst and a particulate catalyst.
Optionally, when the catalyst is a particulate catalyst, the catalyst loading and unloading device comprises a screen.
In a further aspect of the present application, there is provided the use of the above catalyst loading and unloading device for loading and unloading catalyst in a column reactor, wherein the diameter of the column reactor is 50-180 mm; the height of the columnar reactor is 30-150 mm;
optionally, one end of the two ends of the columnar reactor is sealed, and the other end is provided with a detachable end cover.
The beneficial effects that this application can produce include:
the catalyst loading and unloading device provided by the application can effectively relieve the problem that the catalyst is difficult to take out and replace due to carbon deposition expansion; the problem of crushing in the catalyst sinking process in the catalyst filling process is effectively reduced, so that the convenience in taking out the catalyst is effectively improved, and the catalyst loading and unloading efficiency is improved.
Drawings
Fig. 1 is a schematic view showing the structure of a catalyst loading and unloading apparatus in example 2 of the present application.
Fig. 2 is a schematic diagram of the monolithic catalyst structure described in example 1 of the present application.
Fig. 3 is a push-pull armrest in an embodiment of the present application.
Wherein:
1. a support grid; 2. a reinforcing column; 3. and a reinforcing ring.
Detailed Description
The present application is described in detail below with reference to examples, but the present application is not limited to these examples.
Unless otherwise indicated, the catalysts in the examples of the present application were all purchased commercially.
Example 1
The columnar reactor is 72mm in diameter and 1000mm in height, is filled with the honeycomb ceramic monolithic catalyst (shown in figure 2), adopts the catalyst loading and unloading device, the shape of a supporting grid plate is matched with that of the honeycomb ceramic monolithic catalyst, 3 reinforcing columns are symmetrically distributed on the outer peripheral side of the supporting grid plate, and the shape of each reinforcing column is matched with that of a groove on the outer periphery of the filled honeycomb ceramic monolithic catalyst, so that the catalyst can be effectively positioned; the thickness of the reinforcing ring is 0.5mm in the middle of the reinforcing column; and the middle reinforcing rings are arranged outside the catalyst loading and unloading device in 3 ways; the upper end of the reinforcing column is also fixed with a reinforcing ring, the reinforcing ring is provided with a foldable push-pull handrail (shown in figure 3), and through loading and unloading tests, the device can effectively protect the damage problem of the catalyst in the process of loading and taking out and improve the loading and unloading efficiency of the catalyst.
Example 2
The column reactor is 80mm in diameter and 1200mm in height, granular catalyst is filled in the column reactor, the shape of a supporting grid plate 1 of the column reactor is matched with the cross section of the column reactor, 4 reinforcing columns 2 are symmetrically distributed on the outer peripheral side of the supporting grid 1, and a 20-mesh stainless steel wire mesh screen is filled in the loading and unloading device after the catalyst is filled in the inner peripheral side of the reinforcing columns and the supporting grid plate, so that the granular catalyst can be effectively prevented from overflowing to the inner wall of the reactor; a reinforcing ring 3 is arranged in the middle of the reinforcing column, and the thickness is 0.6mm; and 5 middle reinforcing rings are arranged outside the catalyst loading and unloading device; the shape is as shown in figure 2, the upper end of the reinforcing column is also fixed with a reinforcing ring, the reinforcing ring is provided with a foldable push-pull handrail (as shown in figure 3), and the friction between the screen and the reinforcing column in the catalyst filling process can protect the catalyst from being damaged through a loading and unloading test; the device can effectively protect the damage problem of the catalyst in the filling and taking-out process, and solves the problem that the granular catalyst is difficult to take out in the high-length-diameter-ratio reactor, thereby improving the loading and unloading efficiency of the catalyst.
The foregoing description is only a few examples of the present application and is not intended to limit the present application in any way, and although the present application is disclosed in the preferred examples, it is not intended to limit the present application, and any person skilled in the art may make some changes or modifications to the disclosed technology without departing from the scope of the technical solution of the present application, and the technical solution is equivalent to the equivalent embodiments.
Claims (10)
1. A catalyst loading and unloading device is characterized in that,
the catalyst loading and unloading device comprises a support grid plate with air holes and N reinforcing columns fixed on the periphery of the support grid plate and used for positioning the catalyst;
wherein N is more than or equal to 3 and less than or equal to 8, and N is a natural number.
2. The catalyst loading apparatus according to claim 1, wherein,
the reinforcing columns are uniformly distributed on the periphery of the supporting grid plate;
preferably, the N is a natural number of 3 to 6;
preferably, the outer diameter of the reinforcement column is adapted to the catalyst.
3. The catalyst loading apparatus according to claim 1, wherein,
the catalyst loading and unloading device also comprises M identical reinforcing rings, wherein M is a natural number of 1-5;
preferably, the single stiffening ring comprises N 1 Identical stiffener ring chunks;
the N is more than or equal to 3 1 Less than or equal to 6, and N is a natural number.
4. The catalyst loading apparatus according to claim 3, wherein,
the reinforcing ring block is a circular arc-shaped ring block which is adapted to the outer contour of the catalyst;
a reinforcing ring block is fixed between every two reinforcing columns.
5. The catalyst loading apparatus according to claim 3, wherein,
the thickness of the reinforcing ring is 0.5-1 mm.
6. The catalyst loading apparatus according to claim 1, wherein,
the periphery of the catalyst loading and unloading device also comprises a screen;
the screen mesh is 5-30 mesh screen mesh.
7. The catalyst loading apparatus according to claim 3, wherein,
the upper end of the catalyst loading and unloading device is provided with a reinforcing ring fixed on the reinforcing column;
the reinforcing ring is provided with a foldable push-pull handrail.
8. The use of the catalyst loading device according to any one of claims 1 to 7 for loading and unloading a catalyst, wherein,
the catalyst is at least one selected from a honeycomb ceramic monolithic catalyst and a granular catalyst.
9. Use of the catalyst loading device according to any one of claims 1 to 7 in catalyst loading, wherein the catalyst loading device comprises a screen when the catalyst is a particulate catalyst.
10. Use of the catalyst loading and unloading device according to any one of claims 1 to 7 in loading and unloading catalyst in a column reactor, wherein the diameter of the column reactor is 50 to 180mm; the height of the columnar reactor is 30-150 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537507.7A CN116265075A (en) | 2021-12-16 | 2021-12-16 | Catalyst loading and unloading device and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111537507.7A CN116265075A (en) | 2021-12-16 | 2021-12-16 | Catalyst loading and unloading device and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116265075A true CN116265075A (en) | 2023-06-20 |
Family
ID=86742997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111537507.7A Pending CN116265075A (en) | 2021-12-16 | 2021-12-16 | Catalyst loading and unloading device and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116265075A (en) |
-
2021
- 2021-12-16 CN CN202111537507.7A patent/CN116265075A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8101133B2 (en) | Radial flow reactor | |
| EP0483975A1 (en) | Device and method for holding catalyst in a radial flow reactor | |
| US9802173B2 (en) | Catalyst reactor basket | |
| KR101363102B1 (en) | Novel internal exchanger for gas-liquid-solid fluidized bed reactor employing a highly exothermic reaction | |
| CA2040585A1 (en) | Catalytic distillation structure | |
| KR102356416B1 (en) | Multi-tube radial bed reactor | |
| EP3620223A1 (en) | Radial flow adsorption vessel comprising flexible screen | |
| SA97180419B1 (en) | Method and apparatus for uniform packing of solid catalyst particles into a tubular reactor | |
| US20180126319A1 (en) | Method for producing a horizontal flow adsorber and dividing wall module for use in said method | |
| US3732078A (en) | Flow redistributor for a fixed bed down flow reactor | |
| CN116265075A (en) | Catalyst loading and unloading device and application thereof | |
| CN106132527A (en) | Reactor for catalytic process | |
| ATE62145T1 (en) | FILTER CONSTRUCTION FOR GASEOUS LIQUIDS. | |
| CN212092185U (en) | Fixed bed reactor | |
| US20030178347A1 (en) | Device for de-dusting particles associated with a loading unit and its use | |
| EP1814125B1 (en) | Boiling water reactor control rod | |
| CN201807349U (en) | Modularized catalyst member | |
| CN210261119U (en) | Carbon-adding catalytic deaerating tower | |
| MXPA05005251A (en) | Distillation system. | |
| JP2000296325A (en) | Reactor for production of alkanolamine and method for packing catalyst | |
| CN218131054U (en) | Filling device for metal powder catalyst | |
| CN220877780U (en) | Catalyst module for catalytic reaction rectifying tower | |
| CN217581308U (en) | Installation reinforcing apparatus of annular built-in fitting | |
| CN209771660U (en) | Coke oven flue gas filtering device | |
| KR101185927B1 (en) | Cylinder-shaped pump tower and ship having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |