CN211586525U - Acetyl n-propanol hydrogenation reaction device with airflow stirring function - Google Patents
Acetyl n-propanol hydrogenation reaction device with airflow stirring function Download PDFInfo
- Publication number
- CN211586525U CN211586525U CN202020112999.XU CN202020112999U CN211586525U CN 211586525 U CN211586525 U CN 211586525U CN 202020112999 U CN202020112999 U CN 202020112999U CN 211586525 U CN211586525 U CN 211586525U
- Authority
- CN
- China
- Prior art keywords
- hydrogen
- air
- reaction kettle
- rotating shaft
- stirring
- 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.)
- Active
Links
Images
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to an acetyl normal propyl alcohol apparatus for producing, concretely relates to take acetyl normal propyl alcohol hydrogenation device of air current stirring. The device comprises a reaction kettle, wherein a material feeding pipe and a hydrogen chamber are arranged at the top of the reaction kettle, a motor is arranged at the upper part of the hydrogen chamber, a rotating shaft is arranged in the reaction kettle, the rotating shaft penetrates through the hydrogen chamber to be connected with the motor, a plurality of air inlets are formed in the rotating shaft, and the air inlets are all positioned in the hydrogen chamber; the stirring rod is symmetrically arranged on the rotating shaft, the rotating shaft and the stirring rod are both of hollow structures, the rotating shaft is communicated with the stirring rod, and the end part of the stirring rod is provided with an air nozzle which is communicated with the stirring rod; a hydrogen inlet pipe and a hydrogen outlet pipe are arranged at the bottom of the reaction kettle; the top of the reaction kettle is also provided with an air suction pipe, the air suction pipe is connected with an air outlet pipe through an air suction pump, and the air outlet pipe is communicated with the hydrogen chamber. The utility model discloses equipment is simple, and is rational in infrastructure, and stirring effect is good, and hydrogen and liquid material mix fully, and hydrogenation reaction is efficient to can effectively practice thrift hydrogen.
Description
Technical Field
The utility model relates to an acetyl normal propyl alcohol apparatus for producing, concretely relates to take acetyl normal propyl alcohol hydrogenation device of air current stirring.
Background
Acetyl n-propanol (5-hydroxy-2-pentanone) is a fine chemical product widely used in the fields of medicine (used as a raw material for producing antimalarials, vitamins and AIDS), pesticides, organic synthesis and the like.
Chinese patent CN 102140058A discloses a preparation method of gamma-acetyl propanol, which adopts 2-methyl furan as raw material, adds a small amount of concentrated hydrochloric acid and palladium carbon catalyst into water solution, introduces hydrogen at low pressure, and carries out ring-opening reaction at specific temperature to prepare the product. The method has the advantages of low cost, environment-friendly production process, simple and convenient operation and high product yield. However, the patent does not relate to a hydrogenation reaction apparatus.
At present, a hydrogenation reaction device for producing acetyl n-propanol, a hydrogen inlet pipe and a feed liquid inlet pipe are both arranged on a kettle cover, and a mechanical stirring mode is adopted to fully mix solid, liquid and gas phases. However, it is difficult to maintain hydrogen in the liquid phase for a sufficient residence time by simply stirring, which results in a long hydrogenation reaction time, a low reaction efficiency, and a very large hydrogen consumption.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a take acetyl normal propyl alcohol hydrogenation device of air current stirring, equipment is simple, rational in infrastructure, and the stirring effect is good, and hydrogen and liquid material mix fully, and hydrogenation is efficient, effectual to can effectively practice thrift hydrogen.
The utility model provides a technical scheme that its technical problem adopted is:
the hydrogenation reaction device for the acetyl n-propanol with airflow stirring comprises a reaction kettle, wherein a material feeding pipe and a hydrogen chamber are arranged at the top of the reaction kettle, a motor is arranged at the upper part of the hydrogen chamber, a rotating shaft is arranged in the reaction kettle, penetrates through the hydrogen chamber and is connected with the motor, and a plurality of air inlets are formed in the rotating shaft and are positioned in the hydrogen chamber;
the stirring rod is symmetrically arranged on the rotating shaft, the stirring ball is arranged on the side surface of the stirring rod, the rotating shaft and the stirring rod are both of a hollow structure, the rotating shaft is communicated with the stirring rod, and the end part of the stirring rod is provided with an air nozzle which is communicated with the stirring rod;
the material feeding pipe extends to the bottom of the reaction kettle and is connected with the liquid distributor, a hydrogen gas inlet pipe and a hydrogen gas outlet pipe are arranged at the bottom of the reaction kettle, and the hydrogen gas inlet pipe is connected with the gas distributor; the liquid distributor and the gas distributor are both arranged at the bottom of the reaction kettle, the liquid distributor is positioned at the upper part of the gas distributor, and the distance between the liquid distributor and the gas distributor is 10-50 cm;
the top of the reaction kettle is also provided with an air suction pipe, the air suction pipe is connected with an air outlet pipe through an air suction pump, and the air outlet pipe is communicated with the hydrogen chamber.
Wherein:
the nozzle of the air nozzle is provided with a hydrophobic air guide film, so that liquid is reduced from entering the stirring rod.
The outer side of the reaction kettle is provided with a jacket for controlling the temperature of the reaction kettle.
The motor is a variable speed motor.
The number of the stirring rods is 6.
The diameter of the stirring ball is 5-10 cm.
The distance between the liquid distributor and the gas distributor is 10-30 cm.
The working principle and the process are as follows:
the reaction kettle and the pipeline are replaced by nitrogen, then the 2-methylfuran, the hydrochloric acid, the distilled water and the catalyst are mixed to obtain a mixed material, and the mixed material enters the liquid distributor from the material feeding pipe and enters the reaction kettle after passing through the liquid distributor. Meanwhile, hydrogen enters the gas distributor from the hydrogen inlet pipe and enters the reaction kettle through the gas distributor. The hydrogen reacts with the mixture under stirring. The stirring effect of the stirring ball is enhanced, and the material sticking problem of a common stirring device can be improved by the spherical stirring ball. The arrangement of the liquid distributor and the gas distributor can effectively improve the hydrogenation efficiency, increase the contact area of reactants and ensure that the reaction materials fully react in the reaction kettle.
In the reaction process, the hydrogen of feed liquid top gets into the breathing pipe under the effect of getter pump, discharge from the outlet duct and get into the hydrogen room, hydrogen in the hydrogen room passes through the inlet port in proper order, well kenozooecium of rotation axis, well kenozooecium and the jet head of stirring rod, then get into reation kettle, when rotation axis and stirring rod rotate the stirring, hydrogen gets into the reaction liquid from the jet head, participate in the reaction once more on the one hand, on the other hand, play the effect of air current stirring to the reaction liquid, the stirring mode that air current stirring and mechanical stirring combined together, stirring efficiency is greatly improved, thereby the gas-liquid mixture effect has been promoted, the hydrogenation efficiency has been improved, the hydrogenation effect has been optimized, effectively practice thrift the hydrogen quantity.
After the reaction is finished, the product is discharged from a discharge pipe for further treatment.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses equipment is simple, and is rational in infrastructure, and stirring effect is good, and hydrogen and liquid material mix fully, and hydrogenation reaction is efficient, effectual to can effectively practice thrift hydrogen.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. a reaction kettle; 2. a material feeding pipe; 3. a motor; 4. a hydrogen chamber; 5. an air inlet; 6. a rotating shaft; 7. a stirring rod; 8. stirring balls; 9. a liquid distributor; 10. a hydrogen inlet pipe; 11. a discharge pipe; 12. a gas distributor; 13. an air intake duct; 14. a getter pump; 15. an air outlet pipe; 16. a gas showerhead.
Detailed Description
The present invention will be further described with reference to the following examples.
Examples
As shown in fig. 1, the hydrogenation reaction apparatus for n-propanol acetylide with airflow stirring comprises a reaction kettle 1, wherein a material feeding pipe 2 and a hydrogen chamber 4 are arranged at the top of the reaction kettle 1, a motor 3 is arranged at the upper part of the hydrogen chamber 4, a rotating shaft 6 is arranged in the reaction kettle 1, the rotating shaft 6 passes through the hydrogen chamber 4 and is connected with the motor 3, a plurality of air inlets 5 are arranged on the rotating shaft 6, and the air inlets 5 are all positioned in the hydrogen chamber 4;
the stirring rod 7 is symmetrically arranged on the rotating shaft 6, the stirring ball 8 is arranged on the side surface of the stirring rod 7, the rotating shaft 6 and the stirring rod 7 are both of a hollow structure, the rotating shaft 6 is communicated with the stirring rod 7, the end part of the stirring rod 7 is provided with an air nozzle 16, and the air nozzle 16 is communicated with the stirring rod 7;
the material feeding pipe 2 extends to the bottom of the reaction kettle 1 and is connected with the liquid distributor 9, the bottom of the reaction kettle 1 is provided with a hydrogen gas inlet pipe 10 and a hydrogen gas outlet pipe 11, and the hydrogen gas inlet pipe 10 is connected with the gas distributor 12; the liquid distributor 9 and the gas distributor 12 are both arranged at the bottom of the reaction kettle 1, the liquid distributor 9 is positioned at the upper part of the gas distributor 12, and the distance between the liquid distributor 9 and the gas distributor 12 is 10-50 cm;
the top of the reaction kettle 1 is also provided with an air suction pipe 13, the air suction pipe 13 is connected with an air outlet pipe 15 through an air suction pump 14, and the air outlet pipe 15 is communicated with the hydrogen chamber 4.
The nozzle of the air nozzle 16 is provided with a hydrophobic air guide film to reduce the liquid entering the stirring rod 7.
The outer side of the reaction kettle 1 is provided with a jacket for controlling the temperature of the reaction kettle 1.
The motor 3 is a variable speed motor 3.
The number of the stirring rods 7 is 6.
The diameter of the stirring ball 8 is 5-10 cm.
When the device is applied to reaction, the reaction kettle 1 and the pipeline are firstly replaced by nitrogen, then the 2-methylfuran, the hydrochloric acid, the distilled water and the catalyst are mixed to obtain a mixed material, and the mixed material enters the liquid distributor 9 from the material feeding pipe 2 and enters the reaction kettle 1 after passing through the liquid distributor 9. Meanwhile, hydrogen enters the gas distributor 12 from the hydrogen inlet pipe 10 and enters the reaction kettle 1 through the gas distributor 12. The hydrogen reacts with the mixture under stirring. The stirring effect of the stirring ball 8 is enhanced, and the material sticking problem of a common stirring device can be improved by the spherical arrangement. The arrangement of the liquid distributor 9 and the gas distributor 12 can effectively improve the hydrogenation efficiency, increase the contact area of reactants and ensure that the reaction materials fully react in the reaction kettle 1.
In the reaction process, the hydrogen above the feed liquid enters the air suction pipe 13 under the action of the air suction pump 14, the hydrogen is discharged from the air outlet pipe 15 and enters the hydrogen chamber 4, the hydrogen in the hydrogen chamber 4 sequentially passes through the air inlet holes 5, the hollow part of the rotating shaft 6, the hollow part of the stirring rod 7 and the air jet head 16, then the hydrogen enters the reaction kettle 1, the rotating shaft 6 and the stirring rod 7 rotate and stir simultaneously, the hydrogen enters the reaction liquid from the air jet head 16, on the one hand, the reaction is participated in again, on the other hand, the reaction liquid is stirred by the air flow, the stirring mode of combining the air flow stirring with the mechanical stirring is adopted, the stirring efficiency is greatly improved, thereby the gas-liquid mixing effect is improved, the hydrogenation reaction efficiency is improved, the hydrogenation reaction effect.
After the reaction has ended, the product is discharged via the discharge pipe 11 for further processing.
Claims (7)
1. The utility model provides a take acetyl n-propanol hydrogenation device of air current stirring, includes reation kettle (1), its characterized in that: the top of the reaction kettle (1) is provided with a material feeding pipe (2) and a hydrogen chamber (4), the upper part of the hydrogen chamber (4) is provided with a motor (3), a rotating shaft (6) is arranged in the reaction kettle (1), the rotating shaft (6) penetrates through the hydrogen chamber (4) to be connected with the motor (3), the rotating shaft (6) is provided with a plurality of air inlets (5), and the air inlets (5) are all positioned in the hydrogen chamber (4);
stirring rods (7) are symmetrically arranged on the rotating shaft (6), stirring balls (8) are arranged on the side faces of the stirring rods (7), the rotating shaft (6) and the stirring rods (7) are both of a hollow structure, the rotating shaft (6) is communicated with the stirring rods (7), air nozzles (16) are arranged at the end parts of the stirring rods (7), and the air nozzles (16) are communicated with the stirring rods (7);
the material feeding pipe (2) extends to the bottom of the reaction kettle (1) and is connected with the liquid distributor (9), the bottom of the reaction kettle (1) is provided with a hydrogen inlet pipe (10) and a hydrogen outlet pipe (11), and the hydrogen inlet pipe (10) is connected with the gas distributor (12); the liquid distributor (9) and the gas distributor (12) are both arranged at the bottom of the reaction kettle (1), the liquid distributor (9) is positioned at the upper part of the gas distributor (12), and the distance between the liquid distributor (9) and the gas distributor (12) is 10-50 cm;
the top of the reaction kettle (1) is also provided with an air suction pipe (13), the air suction pipe (13) is connected with an air outlet pipe (15) through an air suction pump (14), and the air outlet pipe (15) is communicated with the hydrogen chamber (4).
2. The apparatus for hydrogenation of n-propanol including acetyl with gas flow agitation of claim 1, wherein: and a hydrophobic air guide film is arranged at the nozzle of the air nozzle (16).
3. The apparatus for hydrogenation of n-propanol including acetyl with gas flow agitation of claim 1, wherein: the outer side of the reaction kettle (1) is provided with a jacket.
4. The apparatus for hydrogenation of n-propanol including acetyl with gas flow agitation of claim 1, wherein: the motor (3) is a variable speed motor.
5. The apparatus for hydrogenation of n-propanol including acetyl with gas flow agitation of claim 1, wherein: the number of the stirring rods (7) is 6.
6. The apparatus for hydrogenation of n-propanol including acetyl with gas flow agitation of claim 1, wherein: the diameter of the stirring ball (8) is 5-10 cm.
7. The apparatus for hydrogenation of n-propanol including acetyl with gas flow agitation of claim 1, wherein: the distance between the liquid distributor (9) and the gas distributor (12) is 10-30 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112999.XU CN211586525U (en) | 2020-01-17 | 2020-01-17 | Acetyl n-propanol hydrogenation reaction device with airflow stirring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020112999.XU CN211586525U (en) | 2020-01-17 | 2020-01-17 | Acetyl n-propanol hydrogenation reaction device with airflow stirring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211586525U true CN211586525U (en) | 2020-09-29 |
Family
ID=72579511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020112999.XU Active CN211586525U (en) | 2020-01-17 | 2020-01-17 | Acetyl n-propanol hydrogenation reaction device with airflow stirring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211586525U (en) |
-
2020
- 2020-01-17 CN CN202020112999.XU patent/CN211586525U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203196620U (en) | Reactor for producing methyl formate through carbonylation | |
| WO2021196384A1 (en) | Reaction enhancement system and process for producing pta by px having built-in micro-interface unit | |
| CN101185859B (en) | Jet current atomizing mixer for bioreactor | |
| CN105148823A (en) | Inflatable stirring reaction device | |
| CN108579639B (en) | Device and method for preparing oxo-isophorone | |
| CN109954471A (en) | Self-priming sulbactam hydrogenation equipment | |
| CN211586526U (en) | Hydrogenation reaction device for acetyl n-propanol | |
| CN211586525U (en) | Acetyl n-propanol hydrogenation reaction device with airflow stirring function | |
| CN106393339B (en) | Comprehensive reactor for Wooden modifying | |
| CN112827461A (en) | Reaction equipment for preparing benzaldehyde and preparation method of benzaldehyde | |
| CN105837407A (en) | Preparation method of isobutyl vinyl ether | |
| CN202942885U (en) | Liquid phase catalysis hydrogenation reaction device | |
| CN211487670U (en) | Device for preparing pivalic acid | |
| CN201136843Y (en) | High-efficiency gas-liquid reactor for producing acetic anhydride form liquid-phase carbonyl of methyl acetate | |
| CN205676168U (en) | A kind of carburizing reagent system of injection reactor and nano-calcium carbonate | |
| CN105800659A (en) | Spraying reactor and carbonization reaction system of nano calcium carbonate | |
| CN112979437A (en) | Preparation method of benzaldehyde and special reactor | |
| CN102133517A (en) | Liquid continuous impact flow heterogeneous reaction and aerobic fermentation technical equipment | |
| CN203209062U (en) | Hydraulic reaction device | |
| CN208292662U (en) | A kind of hydrogenation tower for process for prepairng hydrogen peroxide by anthraquinone | |
| CN112827462A (en) | Loop reactor for preparing p-nitrophenyl ether and preparation method of p-nitrophenyl ether | |
| CN211586616U (en) | Reation kettle agitating unit is used in production of acetyl normal propyl alcohol | |
| CN201587915U (en) | Self-cleaning two-stage double-screw dry acetylene generator | |
| CN201593047U (en) | Liquid continuous impinging stream multi-phase reaction and aerobic fermentation technical equipment | |
| CN216778817U (en) | Jacket heating reactor for preparing allopurinol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |