CN219356255U - Quick reaction device for transesterification - Google Patents
Quick reaction device for transesterification Download PDFInfo
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- CN219356255U CN219356255U CN202122285084.6U CN202122285084U CN219356255U CN 219356255 U CN219356255 U CN 219356255U CN 202122285084 U CN202122285084 U CN 202122285084U CN 219356255 U CN219356255 U CN 219356255U
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- storage tank
- transesterification
- reboiler
- condenser
- tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a rapid reaction device for transesterification, and belongs to the technical field of chemical equipment. The device comprises a storage tank, a condenser, a vacuumizing structure, a tail gas treatment structure, a circulating pump, a reboiler right above the storage tank and a fog distributor at the upper part in the storage tank which are sequentially connected through pipelines, wherein a first heating jacket is arranged on the storage tank; the reboiler is provided with a second heating jacket, the temperature in the second heating jacket is 2-5 ℃ lower than the temperature in the storage tank, the mist distributor is positioned above the reaction liquid and is far away from the exhaust port at the top of the storage tank, and the lower part of the storage tank, the reboiler and the mist distributor are sequentially connected through a circulating pipe with a circulating pump. The device can obviously reduce the time of transesterification, improve the reaction efficiency and reduce the energy consumption. Specifically, the reaction time of the transesterification reaction of ethyl p-aminobenzoate and isooctyl alcohol can be reduced to about 12 hours. In addition, the device has simple structure and easy maintenance.
Description
Technical Field
The utility model belongs to the technical field of chemical equipment, and particularly relates to a rapid reaction device for transesterification.
Background
The transesterification is performed by using a reaction kettle type structure, and since the transesterification is generally mild and is an endothermic reaction, the reaction speed is slow, so that the transesterification is performed by using a kettle type structure for a long time, for example: the transesterification of ethyl p-aminobenzoate and isooctyl alcohol needs to be carried out for 30-35 hours, which results in low reaction efficiency and high energy consumption cost.
Disclosure of Invention
In order to solve the problems, the embodiment of the utility model provides a rapid reaction device for transesterification, which can obviously reduce the time of the transesterification, improve the reaction efficiency and reduce the energy consumption. The technical scheme is as follows:
the embodiment of the utility model provides a rapid reaction device for transesterification, which comprises a storage tank 1, a condenser, a vacuumizing structure, a tail gas treatment structure, a circulating pump 2, a reboiler 3 right above the storage tank 1 and a mist distributor 4 at the upper part in the storage tank 1, wherein the storage tank 1 is provided with a first heating jacket; the reboiler 3 is provided with a second heating jacket, the temperature in the second heating jacket is 2-5 ℃ lower than the temperature in the storage tank 1, the mist distributor 4 is positioned above the reaction liquid and is far away from the exhaust port 5 at the top of the storage tank 1, and the lower part of the storage tank 1, the reboiler 3 and the mist distributor 4 are sequentially connected through a circulating pipe 6 with a circulating pump 2.
The mist distributor 4 in the embodiment of the utility model has a horn-shaped structure which gradually increases from top to bottom, the bottom of the mist distributor is horizontal, a plurality of spray holes are uniformly distributed at the bottom of the mist distributor, and the spray holes and the air outlet 5 are respectively positioned at two sides of the storage tank 1.
Further, a third heating jacket is provided outside the circulation pipe 6 in the embodiment of the present utility model.
Specifically, the volume of the storage tank 1 in the embodiment of the utility model is 10000-20000L, and the heat exchange area of the reboiler 3 is 20-60m 2 。
Specifically, the diameter of the bottom of the mist distributor 4 in the embodiment of the utility model is more than 300mm, and the bottom is positioned 400-600mm above the reaction liquid.
Specifically, the diameter of the circulating pipe 6 in the embodiment of the utility model is larger than 50mm, and the circulating amount of the circulating pump 2 is larger than 10 m/h.
The condenser in the embodiment of the utility model comprises a first-stage condenser 7, a second-stage condenser 8 and a gas-liquid separator 9 which are sequentially connected through pipelines, wherein the first-stage condenser 7 is vertically arranged at the top of the storage tank 1 and is connected with the exhaust port 5, the second-stage condenser 8 is horizontally arranged, the gas-liquid separator 9 is higher than the storage tank 1, and a liquid outlet of the gas-liquid separator is connected with the upper part of the storage tank 1 through a pipeline with a valve; the vacuumizing structure comprises a vacuum buffer tank 10 and a vacuum unit 11 which are sequentially connected through pipelines, wherein the vacuum buffer tank 10 is connected with a gas outlet of the gas-liquid separator 9 through a pipeline; the tail gas treatment structure comprises a horizontally arranged alcohol receiving tank 12 and a tail gas condenser 13 vertically arranged on the alcohol receiving tank 12, wherein the upper part of the alcohol receiving tank 12 is connected with a vacuum unit 11 through a pipeline.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that: the embodiment of the utility model provides a rapid reaction device for transesterification, which can obviously reduce the time of transesterification, improve the reaction efficiency and reduce the energy consumption. Specifically, the reaction time of the transesterification reaction of ethyl p-aminobenzoate and isooctyl alcohol can be reduced to about 12 hours. In addition, the device has simple structure and easy maintenance.
Drawings
Fig. 1 is a schematic structural diagram of a rapid reaction apparatus for transesterification according to an embodiment of the present utility model.
In the figure: 1 storage tank, 2 circulating pump, 3 reboiler, 4 vaporific distributor, 5 gas vent, 6 circulating pipe, 7 first level condenser, 8 second level condenser, 9 gas-liquid separator, 10 vacuum buffer tank, 11 vacuum unit, 12 alcohol receiving tank, 13 tail gas condenser.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.
Referring to fig. 1, the embodiment of the utility model provides a rapid reaction device for transesterification, which comprises a storage tank 1, a condenser, a vacuumizing structure, a tail gas treatment structure, a circulating pump 2, a reboiler 3 (for partially gasifying a reaction liquid) directly above the storage tank 1, a mist distributor 4 (for spraying the partially gasified reaction liquid on the surface of the reaction liquid, so that small molecular alcohol is rapidly separated from the reaction liquid (matched with negative pressure), balance movement is promoted, reaction time is reduced) and the like which are sequentially connected through pipelines, wherein the storage tank 1 is vertically provided with a first heating jacket. The reboiler 3 is provided with a second heating jacket, the temperature in the second heating jacket is 2-5 ℃ lower than the temperature in the storage tank 1 (but still can enable the reaction liquid to boil), the mist distributor 4 is positioned above the reaction liquid and is far away from the exhaust port 5 at the top of the storage tank 1 so as to prevent sprayed liquid drops from being sucked away by negative pressure, and the lower part of the storage tank 1 (particularly a liquid outlet at the bottom of the storage tank 1), the reboiler 3 and the mist distributor 4 are sequentially connected through a circulating pipe 6 with a circulating pump 2 (particularly a circulating pipe 6 which can be arranged between the storage tank 1 and the reboiler 3).
Referring to fig. 1, in the embodiment of the present utility model, the mist distributor 4 has a horn-shaped structure that gradually increases from top to bottom, the bottom (closed) is horizontal, the bottom is uniformly provided with a plurality of spray holes, and the spray holes and the air outlet 5 are respectively located at two sides of the storage tank 1, so that the air outlet 5 is far away from the mist distributor 4 as much as possible.
Further, a third heating jacket is arranged outside the circulating pipe 6 in the embodiment of the utility model for ensuring the temperature of the reaction liquid; wherein, the first heating jacket, the second heating jacket and the third heating jacket in the embodiment are all steam heating jackets.
Specifically, the volume of the storage tank 1 in the embodiment of the utility model is 10000-20000L, and the heat exchange area of the reboiler 3 is 20-60m 2 . If the volume of the storage tank 1 is reduced, the heat exchange area of the reboiler 3 is correspondingly reduced.
Specifically, the diameter of the bottom of the mist distributor 4 in the embodiment of the utility model is more than 300mm, and the bottom is positioned 400-600mm above the reaction liquid.
Specifically, the diameter of the circulation pipe 6 in the embodiment of the utility model is larger than 50mm, and the circulation amount of the circulation pump 2 is larger than 10 m/h.
Specifically, the volume of the tank 1 in this embodiment was 16000L, and the heat exchange area of the reboiler 3 was 30m 2 The method comprises the steps of carrying out a first treatment on the surface of the The diameter of the bottom of the mist distributor 4 is 500mm, and the bottom is positioned at the position 500mm above the reaction liquid; the diameter of the circulation tube 6 is 80mm.
Referring to fig. 1, the condenser in the embodiment of the present utility model includes a first-stage condenser 7, a second-stage condenser 8, and a gas-liquid separator 9, which are sequentially connected through a pipeline, wherein the first-stage condenser 7 is vertically disposed at the top of the storage tank 1 and is connected to the exhaust port 5, the second-stage condenser 8 is horizontally disposed, the gas-liquid separator 9 is higher than the storage tank 1, and the liquid outlet thereof is connected to the upper portion of the storage tank 1 through a pipeline with a valve (which is opened periodically to return separated liquid to the storage tank 1). The vacuumizing structure comprises a vacuum buffer tank 10, a vacuum unit 11 and the like which are sequentially connected through pipelines, and the vacuum buffer tank 10 is connected with a gas outlet of the gas-liquid separator 9 through a pipeline. The tail gas treatment structure comprises a horizontally arranged alcohol receiving tank 12 (used for receiving and storing micromolecular alcohol), a tail gas condenser 13 vertically arranged on the alcohol receiving tank, and the like, wherein the upper part of the alcohol receiving tank 12 is connected with a vacuum unit 11 through a pipeline, and the upper end of the tail gas condenser 13 is connected with a tail gas treatment system through a pipeline.
The "first", "second" and "third" in this embodiment are only used for distinguishing, and have no other special meaning.
The pipelines between the structures in the embodiment can be provided with pumps, valves, flow meters and the like according to requirements.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (7)
1. The rapid reaction device for the transesterification comprises a storage tank (1), a condenser, a vacuumizing structure and a tail gas treatment structure which are sequentially connected through pipelines, wherein a first heating jacket is arranged on the storage tank (1); the rapid reaction device is characterized by further comprising a circulating pump (2), a reboiler (3) right above the storage tank (1) and a mist distributor (4) at the upper part in the storage tank (1), wherein a second heating jacket is arranged on the reboiler (3), the temperature in the second heating jacket is 2-5 ℃ lower than that in the storage tank (1), the mist distributor (4) is located above the reaction liquid and is far away from an exhaust port (5) at the top of the storage tank (1), and the lower part of the storage tank (1), the reboiler (3) and the mist distributor (4) are sequentially connected through a circulating pipe (6) with the circulating pump (2).
2. The rapid reaction device for transesterification according to claim 1, wherein the mist distributor (4) has a horn-like structure which gradually increases from top to bottom, the bottom of the mist distributor is horizontal, a plurality of spray holes are uniformly distributed on the bottom of the mist distributor, and the spray holes and the air outlet (5) are respectively positioned on two sides of the storage tank (1).
3. The rapid reaction apparatus for transesterification according to claim 1, wherein a third heating jacket is provided outside the circulation pipe (6).
4. The rapid reaction apparatus for transesterification according to claim 2, wherein the volume of the tank (1) is 10000-20000L and the heat exchange area of the reboiler (3) is 20-60m 2 。
5. A rapid transesterification reaction apparatus according to claim 3, wherein the diameter of the bottom of the mist distributor (4) is greater than 300mm and is located 400-600mm above the reaction liquid.
6. A rapid reaction device for transesterification according to claim 3, characterized in that the diameter of the circulation pipe (6) is greater than 50mm and the circulation volume of the circulation pump (2) is greater than 10 m/h.
7. The rapid reaction device for transesterification according to claim 1, wherein the condenser comprises a primary condenser (7), a secondary condenser (8) and a gas-liquid separator (9) which are sequentially connected through a pipeline, the primary condenser (7) is vertically arranged at the top of the storage tank (1) and is connected with the exhaust port (5), the secondary condenser (8) is horizontally arranged, the gas-liquid separator (9) is higher than the storage tank (1) and the liquid outlet of the gas-liquid separator is connected with the upper part of the storage tank (1) through a pipeline with a valve; the vacuumizing structure comprises a vacuum buffer tank (10) and a vacuum unit (11) which are sequentially connected through pipelines, wherein the vacuum buffer tank (10) is connected with a gas outlet of a gas-liquid separator (9) through a pipeline; the tail gas treatment structure comprises a horizontally arranged alcohol receiving tank (12) and a tail gas condenser (13) vertically arranged on the alcohol receiving tank, and the upper part of the alcohol receiving tank (12) is connected with a vacuum unit (11) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285084.6U CN219356255U (en) | 2021-09-22 | 2021-09-22 | Quick reaction device for transesterification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122285084.6U CN219356255U (en) | 2021-09-22 | 2021-09-22 | Quick reaction device for transesterification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219356255U true CN219356255U (en) | 2023-07-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122285084.6U Active CN219356255U (en) | 2021-09-22 | 2021-09-22 | Quick reaction device for transesterification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219356255U (en) |
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2021
- 2021-09-22 CN CN202122285084.6U patent/CN219356255U/en active Active
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