CN219682469U - Gas-liquid-solid three-phase reaction kettle capable of preventing solid catalyst from flowing out - Google Patents
Gas-liquid-solid three-phase reaction kettle capable of preventing solid catalyst from flowing out Download PDFInfo
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- CN219682469U CN219682469U CN202321380877.9U CN202321380877U CN219682469U CN 219682469 U CN219682469 U CN 219682469U CN 202321380877 U CN202321380877 U CN 202321380877U CN 219682469 U CN219682469 U CN 219682469U
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 68
- 239000011949 solid catalyst Substances 0.000 title claims abstract description 41
- 239000007787 solid Substances 0.000 title claims abstract description 26
- 239000012071 phase Substances 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000011148 porous material Substances 0.000 claims abstract description 16
- 238000005191 phase separation Methods 0.000 claims abstract description 8
- 239000003054 catalyst Substances 0.000 claims description 18
- 238000004062 sedimentation Methods 0.000 claims description 17
- 239000000725 suspension Substances 0.000 claims description 15
- 239000007790 solid phase Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 2
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The utility model relates to a gas-liquid-solid three-phase reaction kettle for preventing a solid catalyst from flowing out, belonging to the technical field of chemical equipment. The gas-liquid-solid three-phase reaction kettle comprises a reaction kettle body, wherein a feed inlet and a gas-liquid inlet are respectively arranged at the upper part and the lower part of the reaction kettle body, a product outlet and a gas-phase outlet are arranged between the feed inlet and the gas-liquid inlet and are positioned above the product outlet, an annular flow passage is arranged at the product outlet, the side wall of the annular flow passage is provided with a pore passage and is communicated with the reaction kettle body, and a filter screen is arranged in the pore passage. According to the utility model, the annular flow channel is arranged at the product outlet, the side wall of the annular flow channel is provided with the pore canal which is communicated with the reaction kettle, and the filter screen is arranged in the pore canal, so that the solid catalyst can be prevented from flowing out along with the liquid phase separation, and the reaction activity of the solid catalyst is ensured.
Description
Technical Field
The utility model relates to the field of chemical production of gas-liquid-solid multiphase reactions, in particular to a gas-liquid-solid three-phase reaction kettle for preventing a solid catalyst from flowing out.
Background
The gas-liquid-solid three-phase reaction is a common reaction in the chemical industry field, and is more in variety, most of the solid is a catalyst in most cases, and the gas and the liquid are reactants and products. The traditional loop reactor has the advantages of good mass transfer effect, large heat exchange area outside the reactor, good device tightness and the like, and is widely applied to gas-liquid two-phase reactions. CN215823085U discloses a loop reactor with efficient venturi ejectors, which comprises a high-pressure reaction kettle, a loop circulating pump and a heat exchanger which are sequentially communicated, wherein the high-pressure reaction kettle is sequentially provided with an air storage cavity and a gas-liquid storage cavity from top to bottom, the upper end of the high-pressure reaction kettle is provided with a venturi ejector, and the venturi ejector is communicated with the heat exchanger; the venturi injector includes: the device comprises an air chamber, a nozzle, a loop pipe, an air inlet pipe, an injection pipe and a mixed reaction pipe, wherein two ends of the injection pipe are respectively communicated with the air chamber and the mixed reaction pipe, the lower end of the mixed reaction pipe stretches into a gas-liquid storage cavity, the air chamber is arranged above a high-pressure reaction kettle, and the nozzle is arranged in the air chamber and is opposite to the injection pipe; the air chamber is also communicated with the air storage cavity through a loop pipe, and the air chamber is communicated with the air inlet pipe.
However, the dispersion effect of the solid catalyst in the reaction vessel is poor, and the solid catalyst is easily discharged out of the reaction vessel, thereby reducing the catalytic effect.
Disclosure of Invention
Aiming at the defects and shortcomings existing in the prior art, the utility model provides the gas-liquid-solid three-phase reaction kettle for preventing the solid catalyst from flowing out.
The technical scheme of the utility model is as follows:
the utility model provides a prevent solid catalyst outflow's three-phase reation kettle of gas-liquid, includes the reation kettle body, reation kettle body's upper portion and lower part be provided with charge door and gas-liquid inlet respectively, be provided with product export and gas-phase export between charge door and the gas-phase import and be located the product export top, product exit be provided with annular runner, the lateral wall of annular runner be provided with the pore and communicate with the reation kettle body, the pore in be provided with the filter screen.
According to the utility model, preferably, the reaction kettle body is of a cylindrical structure, a catalyst suspension area, a sedimentation area and a gas phase area are sequentially arranged between the gas inlet and the feed inlet, and the area of the annular flow passage is a solid phase separation area; the catalyst suspension zone, the sedimentation zone and the solid phase separation zone are main places for gas-liquid-solid three-phase reaction;
preferably, the diameter of the catalyst suspension zone is less than the diameter of the settling zone; namely: the catalyst suspension zone comprises a reducing zone and a small-diameter zone, and the sedimentation zone is a large-diameter zone. The gas-liquid-solid three-phase catalyst can be uniformly dispersed in the catalyst suspension area, and the sedimentation area is more favorable for sedimentation of the solid catalyst, and has a certain effect on preventing the solid catalyst from entering the liquid phase outlet.
According to the present utility model, preferably, the annular flow passage has a fan-shaped duct, and the maximum pore diameter of the filter screen is smaller than the average particle diameter of the solid catalyst.
According to the utility model, preferably, a porous baffle plate is further arranged in the reaction kettle body between the product outlet and the gas phase outlet and is used for separating the gas phase from the liquid phase in the reaction kettle body.
According to the utility model, preferably, the reaction kettle body is further provided with a scraper system consisting of a servo motor, a transmission shaft and a scraper, the position of the scraper is the same as that of the filter screen of the annular flow passage, and the scraper is connected with the servo motor through the transmission shaft. The scraper is mainly used for removing the solid catalyst on the filter screen.
According to the utility model, preferably, the upper part of the reaction kettle body is also provided with an auxiliary function port. The auxiliary function port can be used as a temperature measuring port, a pressure measuring port, a safety valve port, an observation port, a liquid level meter mounting port and the like.
According to the utility model, preferably, a discharge outlet is arranged at the bottom of the annular flow passage.
When the reactor is used, the solid catalyst is added into the reactor body through the feed inlet, the gas-liquid two-phase mixture enters the reactor body through the gas-liquid inlet, the gas-liquid-solid three-phase reaction is carried out with the solid catalyst in the reactor body, the liquid-phase product is discharged from the product outlet, and the gas phase is discharged from the gas-phase outlet.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the annular flow channel is arranged at the product outlet of the reaction kettle body, the side wall of the annular flow channel is provided with the pore canal and is communicated with the reaction kettle, the filter screen is arranged in the pore canal, so that the solid catalyst can be prevented from flowing out along with the liquid phase separation, and meanwhile, the solid catalyst on the filter screen is continuously removed by the scraper system, so that the solid catalyst is further prevented from flowing out of the reaction kettle body, and the reaction activity of the solid catalyst is ensured.
2. The diameter of the catalyst suspension zone of the reaction kettle body is smaller than that of the sedimentation zone, namely the diameter of the reaction kettle is increased from bottom to top. The gas-liquid-solid three-phase catalyst can be uniformly dispersed in the catalyst suspension area, and the sedimentation area is more favorable for sedimentation of the solid catalyst, and has a certain effect on preventing the solid catalyst from entering the liquid phase outlet.
Drawings
FIG. 1 is a schematic diagram of the main structure of a gas-liquid-solid three-phase reaction kettle for preventing a solid catalyst from flowing out.
Fig. 2 is a schematic main structure of an annular runner in a gas-liquid-solid three-phase reaction kettle for preventing a solid catalyst from flowing out.
Wherein: the device comprises an 11-auxiliary function port, a 12-charging port, a 13-porous baffle, a 14-annular flow passage, a 15-product outlet, a 16-filter screen, a 17-discharge port, an 18-gas-liquid inlet, a 19-gas phase outlet, a 100-servo motor, a 101-transmission shaft, a 102-scraper, an I-catalyst suspension zone, a II-sedimentation zone, a III-solid phase separation zone and an IV-gas phase zone.
Detailed Description
The utility model will now be further illustrated by, but is not limited to, the following specific examples in connection with the accompanying drawings.
Example 1
As shown in fig. 1-2, a gas-liquid-solid three-phase reaction kettle for preventing a solid catalyst from flowing out comprises a reaction kettle body, wherein a feed inlet 12 and a gas-liquid inlet 18 are respectively arranged at the upper part and the lower part of the reaction kettle body, a product outlet 15 and a gas-phase outlet 19 are arranged between the feed inlet 12 and the gas-liquid inlet 18, the gas-phase outlet 19 is positioned above the product outlet 15, an annular flow passage 14 is arranged at the product outlet 15, a pore canal is arranged on the side wall of the annular flow passage 14 and is communicated with the reaction kettle body, and a filter screen 16 is arranged in the pore canal.
In this embodiment, the reaction kettle body has a cylindrical structure, a catalyst suspension area I, a sedimentation area II and a gas phase area IV are sequentially arranged between the gas inlet 18 and the feed inlet 12, and the area of the annular flow passage 14 is a solid phase separation area III; the catalyst suspension zone I, the sedimentation zone II and the solid phase separation zone III are main sites for gas-liquid-solid three-phase reaction; the diameter of the catalyst suspension zone I is smaller than that of the sedimentation zone II; namely: the catalyst suspension zone I comprises a reducing zone and a small-diameter zone, and the sedimentation zone II is a large-diameter zone. Not only can the gas, liquid and solid phases be uniformly dispersed in the catalyst suspension area I, but also the sedimentation area II is more beneficial to the sedimentation of the solid catalyst, and has a certain effect on preventing the solid catalyst from entering the liquid phase outlet 15.
In this embodiment, the annular flow channel 14 has a fan-shaped channel, and the maximum pore diameter of the filter screen 16 is smaller than the average particle diameter of the solid catalyst.
Example 2
As described in example 1, the difference is that:
a porous baffle 13 is arranged between the product outlet 15 and the gas phase outlet 19 in the reaction kettle body and is used for separating the gas phase from the liquid phase in the reaction kettle body.
Example 3
As described in example 1 or 2, except that:
the reaction kettle body is also provided with a scraper system consisting of a servo motor 100, a transmission shaft 101 and a scraper 102, wherein the scraper 102 and the filter screen 16 of the annular flow channel 14 are positioned at the same position, and the scraper 102 is connected with the servo motor 100 through the transmission shaft 101. The scraper 102 is primarily used to remove solid catalyst from the screen 16.
Example 4
As described in examples 1 or 2 or 3, except that:
the upper part of the reaction kettle body is also provided with an auxiliary function port 11. The auxiliary function port 11 can be used as a temperature measuring port, a pressure measuring port, a safety valve port, an observation port, a liquid level meter mounting port and the like.
Example 5
As described in examples 1 or 2 or 3 or 4, except that:
the bottom of the annular flow passage 14 is provided with a discharge outlet 17.
When the reactor is used, the solid catalyst is added into the reactor body through the feed inlet 12, the gas-liquid two-phase mixture enters the reactor body through the gas-liquid inlet 18, the gas-liquid-solid three-phase reaction is carried out with the solid catalyst in the reactor body, the liquid-phase product is discharged from the product outlet 15, and the gas phase is discharged from the gas-phase outlet 19.
According to the utility model, the annular flow channel 14 is arranged at the product outlet 15 of the reaction kettle body, the side wall of the annular flow channel 14 is provided with the pore canal and is communicated with the reaction kettle body, the filter screen 16 is arranged in the pore canal, and the scraper system continuously removes the solid catalyst on the filter screen 16, so that the solid catalyst can be prevented from flowing out along with the separation of the liquid phase, and the reaction activity of the solid catalyst is ensured. The porous barrier 13 serves to separate the gas phase from the liquid phase, avoiding entry of the liquid phase into the gas phase outlet 19.
Claims (8)
1. The gas-liquid-solid three-phase reaction kettle is characterized by comprising a reaction kettle body, wherein a feed inlet and a gas-liquid inlet are respectively arranged on the upper part and the lower part of the reaction kettle body, a product outlet and a gas-phase outlet are arranged between the feed inlet and the gas-liquid inlet, and the gas-phase outlet is positioned above the product outlet, an annular flow passage is arranged at the product outlet, a pore passage is formed in the side wall of the annular flow passage and is communicated with the reaction kettle body, and a filter screen is arranged in the pore passage.
2. The gas-liquid-solid three-phase reaction kettle for preventing solid catalyst from flowing out according to claim 1, wherein the reaction kettle body is of a cylindrical structure, a catalyst suspension area, a sedimentation area and a gas phase area are sequentially arranged between a gas-liquid inlet and a feed inlet, and the area of the annular flow passage is a solid phase separation area.
3. The gas-liquid-solid three-phase reaction kettle for preventing the outflow of the solid catalyst according to claim 2, wherein the diameter of the catalyst suspension zone is smaller than the diameter of the sedimentation zone.
4. The gas-liquid-solid three-phase reaction kettle for preventing the outflow of the solid catalyst according to claim 1, wherein the channel shape of the annular flow channel is a sector.
5. The gas-liquid-solid three-phase reaction kettle for preventing the outflow of the solid catalyst according to claim 1, wherein a porous baffle plate is further arranged in the reaction kettle body between the product outlet and the gas phase outlet.
6. The gas-liquid-solid three-phase reaction kettle for preventing the outflow of the solid catalyst according to claim 1, wherein the reaction kettle body is further provided with a scraper system consisting of a servo motor, a transmission shaft and a scraper, the position of the scraper is the same as that of a filter screen of the annular flow passage, and the scraper is connected with the servo motor through the transmission shaft.
7. The gas-liquid-solid three-phase reaction kettle for preventing solid catalyst from flowing out according to claim 1, wherein an auxiliary function port is further arranged at the upper part of the reaction kettle body.
8. The gas-liquid-solid three-phase reaction kettle for preventing outflow of solid catalyst according to claim 1, wherein a discharge port is arranged at the bottom of the annular flow passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321380877.9U CN219682469U (en) | 2023-06-01 | 2023-06-01 | Gas-liquid-solid three-phase reaction kettle capable of preventing solid catalyst from flowing out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321380877.9U CN219682469U (en) | 2023-06-01 | 2023-06-01 | Gas-liquid-solid three-phase reaction kettle capable of preventing solid catalyst from flowing out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219682469U true CN219682469U (en) | 2023-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321380877.9U Active CN219682469U (en) | 2023-06-01 | 2023-06-01 | Gas-liquid-solid three-phase reaction kettle capable of preventing solid catalyst from flowing out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219682469U (en) |
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2023
- 2023-06-01 CN CN202321380877.9U patent/CN219682469U/en active Active
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