CN213221051U - Device for removing water-soluble impurities from organic extraction phase - Google Patents
Device for removing water-soluble impurities from organic extraction phase Download PDFInfo
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- CN213221051U CN213221051U CN202021801334.6U CN202021801334U CN213221051U CN 213221051 U CN213221051 U CN 213221051U CN 202021801334 U CN202021801334 U CN 202021801334U CN 213221051 U CN213221051 U CN 213221051U
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Abstract
The utility model discloses a device for removing water-soluble impurities from organic extraction phase, which comprises an organic extraction phase storage tank, wherein the liquid outlet of the organic extraction phase storage tank is connected to the feed inlet of a coalescer through a pipeline, the oil outlet of the coalescer is connected to the light phase inlet of an extraction tower through a pipeline, the light phase outlet of the extraction tower is connected to the pipeline between the oil outlet and the light phase inlet through a pipeline, and a light phase discharging branch pipe is arranged; the device still includes demineralized water pipe and alkali liquor pipe, is connected with demineralized water pipe and alkali liquor pipe on the pipeline before the feed inlet, and the heavy phase entrance department of extraction column also is connected with demineralized water pipe and alkali liquor pipe. The utility model discloses utilize alkali wash, washing to detach the anion and cation impurity in the organic extraction phase, through flow optimization, reach the high-efficient purpose of taking off miscellaneous.
Description
Technical Field
The utility model belongs to the technical field of coal gas analysis, a device of organic extraction looks desorption water-soluble impurity is related to.
Background
In the petrochemical industry, the product types are various, the reaction is complex, the process is complicated, the impurity removal means of the system is also various, the common impurity removal means comprises filtration, extraction, evaporation, distillation, ion exchange and the like, and a production process usually needs several impurity removal procedures to obtain a high-quality product. Filtration simply separates the solid and liquid phases and does not remove soluble impurities, which are removed by extraction, evaporation, distillation, ion exchange, and the like.
From one product to another product, chemical reactions are needed, side reactions often occur, the other chemical reactions occur in a water system, anion and cation impurities are generated in the process, and the anion and cation impurities can affect the quality of a finished product. The anions and cations are removed by physical means such as extraction, ion exchange and the like. Among them, ion exchange is a commonly used and most effective method. However, the manufacturing cost of anion and cation resin in ion exchange is high, the operation period of the common anion and cation resin is 3-4 months, two sets of anion and cation resin are required to be switched for use in production, the switched ion exchange tower needs to be washed by acid, alkali and demineralized water for standby after being qualified, the washing period needs 30 hours, the workload is large, the safety risk exists, and the washing cost is high.
Disclosure of Invention
The utility model provides a device of organic extraction looks desorption water-soluble impurity utilizes alkali wash, washing to detach the anion and cation impurity in the organic extraction looks, through flow optimization, reaches the high-efficient purpose of taking off miscellaneous.
The utility model adopts the technical scheme that an organic extraction phase water-soluble impurity removing device comprises an organic extraction phase storage tank, wherein a liquid outlet of the organic extraction phase storage tank is connected to a feed inlet of a coalescer through a pipeline, an oil outlet of the coalescer is connected to a light phase inlet of an extraction tower through a pipeline, a light phase outlet of the extraction tower is connected to a pipeline between the oil outlet and the light phase inlet through a pipeline, and a light phase discharging branch pipe is arranged; the device still includes demineralized water pipe and alkali liquor pipe, is connected with demineralized water pipe and alkali liquor pipe on the pipeline before the feed inlet, and the heavy phase entrance department of extraction column also is connected with demineralized water pipe and alkali liquor pipe.
Furthermore, the coalescer is provided with a water outlet which is connected to a liquid inlet of the organic extraction phase storage tank through a pipeline.
Furthermore, a partition plate is arranged in the organic extraction phase storage tank, the height of the partition plate is smaller than that of the organic extraction phase storage tank, the bottom of the organic extraction phase storage tank is divided into two spaces, and the liquid inlet and the liquid outlet are respectively positioned on two sides of the partition plate.
Further, the extraction tower is provided with a heavy phase outlet and is connected to a wastewater process through a heavy phase discharge pipe.
Furthermore, the device also comprises an alkali liquor buffer tank, wherein one end of the alkali liquor pipe is connected with the alkali liquor buffer tank, and the other end of the alkali liquor pipe is respectively connected to the feed inlet front pipeline and the heavy phase inlet front pipeline.
Further, the extraction tower is a sieve plate extraction tower.
Furthermore, a foam discharging pipeline is arranged between the first sieve plate at the top of the extraction tower and the second sieve plate at the lower part of the extraction tower, and the foam discharging pipeline is led out of the extraction tower.
The utility model discloses following beneficial effect has:
1. the utility model provides a device, liquid in the organic extraction looks holding vessel is drawn forth the back and is mixed with alkali lye and demineralized water, water-soluble impurity in the organic extraction looks can partly enter into water phase, then get into the coalescer and carry out the primary separation, can be divided into heavy phase and the organic light phase that contains alkali lye and water, heavy phase gets back to and mixes with organic phase in the organic extraction looks holding vessel, extract water-soluble impurity in the organic phase, light phase enters into and washes the extraction once more in the extraction tower, the light phase of separation circulates repeatedly, draw forth to the epilogue process through carrying out light phase ejection of compact branch pipe after meeting the requirement.
2. The utility model discloses a sieve extraction tower extracts the light phase of separation and heavy phase, and wherein light phase gets into from the bottom, and heavy phase gets into from upper portion, and double-phase carries out reverse contact washing in the extraction tower, can get rid of the water-soluble impurity in the organic light phase by the high efficiency.
3. A foam discharging pipeline is arranged between the first sieve plate at the top of the extraction tower and the second sieve plate at the lower part of the extraction tower, and the foam discharging pipeline is led out of the extraction tower and can be led to a wastewater workshop through a heavy phase discharging pipe for treatment.
4. The utility model provides a device cost is with low costs relative ion exchange equipment, can replace the ion exchange equipment that original organic phase was handled, and the edulcoration is effectual, and the organic phase after the processing can further use.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further explained with reference to the following examples and drawings.
As shown in fig. 1, a device for removing water-soluble impurities from an organic extract phase comprises an organic extract phase storage tank 1, a liquid outlet 1-1 of which is connected to a feed inlet 2-1 of a coalescer 2 through a pipeline, an oil outlet 2-2 of the coalescer 2 is connected to a light phase inlet 3-1 of an extraction tower 3 through a pipeline, a light phase outlet 3-3 of the extraction tower is connected to a pipeline between the oil outlet 2-2 and the light phase inlet 3-1 through a pipeline, and a light phase discharge branch pipe 4 is arranged; the device also comprises a desalting water pipe 5 and an alkali liquor pipe 6, the desalting water pipe 5 and the alkali liquor pipe 6 are connected on the pipeline in front of the feed inlet 2-1, and the desalting water pipe 5 and the alkali liquor pipe 6 are also connected at the heavy phase inlet 3-2 of the extraction tower 3.
Preferably, the coalescer 2 is provided with a water outlet 2-3, and the water outlet 2-3 is connected to a liquid inlet 1-2 of the organic extraction phase storage tank 1 through a pipeline.
Preferably, a partition plate 1-3 is arranged in the organic extraction phase storage tank 1, the height of the partition plate 1-3 is smaller than that of the organic extraction phase storage tank, the bottom of the organic extraction phase storage tank is divided into two spaces, and the liquid inlet 1-2 and the liquid outlet 1-1 are respectively positioned at two sides of the partition plate.
Preferably, the extraction column is provided with a heavy phase outlet 3-4, which is connected to the waste water process via a heavy phase discharge pipe 8.
Preferably, the device also comprises an alkali liquor buffer tank 7, one end of an alkali liquor pipe 6 is connected with the alkali liquor buffer tank, and the other end of the alkali liquor pipe is respectively connected with the front pipeline of the feed inlet 2-1 and the front pipeline of the heavy phase inlet 3-2.
Preferably, the extraction column is a sieve plate extraction column.
Preferably, a foam discharging pipeline is arranged between the first sieve plate at the top of the extraction tower and the second sieve plate at the lower part of the extraction tower, and the foam discharging pipeline is led out of the extraction tower.
When the device is used specifically, materials in the organic extraction phase storage tank are conveyed into the coalescer through the pump, the front end of the inlet pipe of the conveying pump is connected with the desalting water pipe and the alkaline liquid pipe, and a certain amount of desalting water and sodium hydroxide solution are added; the organic extraction phase is subjected to primary separation in the coalescer, the heavy phase returns to the organic extraction phase storage tank, and the light phase enters the extraction tower; adding a certain proportion of desalted water and sodium hydroxide solution into the top of the extraction tower through a desalted water pipe and an alkali liquor pipe, setting the flow according to the load, and reversely washing the light phase from the coalescer and the desalted water and the sodium hydroxide solution in the impurity removal tower; the washed light phase is conveyed to a post-process by a discharge conveying pump through a light phase discharge branch pipe, and part of the light phase flows back; a foam pipe is arranged between the first sieve plate at the top of the extraction tower and the second sieve plate at the lower part of the extraction tower, foam is periodically discharged, and the discharged foam and the heavy phase at the bottom of the extraction tower are conveyed to a wastewater treatment process through a heavy phase discharge pipe by a conveying pump.
Claims (7)
1. The device for removing water-soluble impurities from the organic extraction phase is characterized in that: the device comprises an organic extraction phase storage tank (1), wherein a liquid outlet (1-1) of the organic extraction phase storage tank is connected to a feed inlet (2-1) of a coalescer (2) through a pipeline, an oil outlet (2-2) of the coalescer (2) is connected to a light phase inlet (3-1) of an extraction tower (3) through a pipeline, a light phase outlet (3-3) of the extraction tower is connected to a pipeline between the oil outlet (2-2) and the light phase inlet (3-1) through a pipeline, and a light phase discharging branch pipe (4) is arranged; the device also comprises a desalting water pipe (5) and an alkali liquor pipe (6), the pipeline in front of the feed inlet (2-1) is connected with the desalting water pipe (5) and the alkali liquor pipe (6), and the heavy phase inlet (3-2) of the extraction tower (3) is also connected with the desalting water pipe (5) and the alkali liquor pipe (6).
2. The apparatus of claim 1, wherein: the coalescer (2) is provided with a water outlet (2-3), and the water outlet (2-3) is connected to a liquid inlet (1-2) of the organic extraction phase storage tank (1) through a pipeline.
3. The apparatus of claim 1, wherein: the organic extraction phase storage tank (1) is internally provided with a partition plate (1-3), the height of the partition plate (1-3) is smaller than that of the organic extraction phase storage tank, the bottom of the organic extraction phase storage tank is divided into two spaces, and the liquid inlet (1-2) and the liquid outlet (1-1) are respectively positioned at two sides of the partition plate.
4. The apparatus of claim 1, wherein: the extraction tower is provided with a heavy phase outlet and is connected to a wastewater process through a heavy phase discharge pipe.
5. The apparatus of any one of claims 1-4, wherein: the device also comprises an alkali liquor buffer tank (7), one end of an alkali liquor pipe (6) is connected with the alkali liquor buffer tank, and the other end of the alkali liquor pipe is respectively connected to the front pipeline of the feed inlet (2-1) and the front pipeline of the heavy phase inlet (3-2).
6. The apparatus of any one of claims 1-4, wherein: the extraction tower is a sieve plate extraction tower.
7. The apparatus of claim 6, wherein: a foam discharging pipeline is arranged between the first sieve plate at the top of the extraction tower and the second sieve plate at the lower part of the extraction tower, and the foam discharging pipeline is led out of the extraction tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021801334.6U CN213221051U (en) | 2020-08-25 | 2020-08-25 | Device for removing water-soluble impurities from organic extraction phase |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021801334.6U CN213221051U (en) | 2020-08-25 | 2020-08-25 | Device for removing water-soluble impurities from organic extraction phase |
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| CN213221051U true CN213221051U (en) | 2021-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849278A (en) * | 2022-04-20 | 2022-08-05 | 山东省产品质量检验研究院 | Multi-stage extractor for separating saturated hydrocarbon and unsaturated hydrocarbon in oil product |
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2020
- 2020-08-25 CN CN202021801334.6U patent/CN213221051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849278A (en) * | 2022-04-20 | 2022-08-05 | 山东省产品质量检验研究院 | Multi-stage extractor for separating saturated hydrocarbon and unsaturated hydrocarbon in oil product |
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