CN220939140U - Phenolate steaming and blowing system based on air floatation principle - Google Patents
Phenolate steaming and blowing system based on air floatation principle Download PDFInfo
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- CN220939140U CN220939140U CN202322583954.7U CN202322583954U CN220939140U CN 220939140 U CN220939140 U CN 220939140U CN 202322583954 U CN202322583954 U CN 202322583954U CN 220939140 U CN220939140 U CN 220939140U
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- Prior art keywords
- oil
- fan
- steaming
- tower
- system based
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-M phenolate Chemical compound [O-]C1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-M 0.000 title claims abstract description 23
- 238000010025 steaming Methods 0.000 title claims abstract description 17
- 238000007664 blowing Methods 0.000 title claims abstract description 16
- 229940031826 phenolate Drugs 0.000 title claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000000926 separation method Methods 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims description 9
- 238000009833 condensation Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 5
- 238000000605 extraction Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 238000005188 flotation Methods 0.000 claims 1
- 230000005484 gravity Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 14
- NESLWCLHZZISNB-UHFFFAOYSA-M sodium phenolate Chemical compound [Na+].[O-]C1=CC=CC=C1 NESLWCLHZZISNB-UHFFFAOYSA-M 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Physical Water Treatments (AREA)
Abstract
The utility model belongs to the technical field of oil-gas separation, and particularly relates to a phenoxide steaming and blowing system based on an air floatation principle. The utility model has the advantages that: the oil-water separator utilizes a fan to remove oil to form an oil-gas mixed state, and the oil-gas mixed state returns to a separation area in the oil-water separator, so that oil and water are rapidly separated, the purpose of continuous oil removal is achieved, air floatation oil removal is added on the basis of gravity separation, and the oil-water separation efficiency is higher.
Description
Technical Field
The utility model belongs to the technical field of deep tar processing in the metallurgical coking industry, and particularly relates to a phenolate steaming and blowing system based on an air floatation principle.
Background
The crude phenol product in the coking industry mainly comes from a phenolate decomposition unit of a tar distillation device, takes sodium phenolate of a dephenolization and industrial naphthalene distillation unit as a raw material, and is prepared by decomposing sodium phenolate in an acidic environment. Referring to figure 1, in the traditional phenolate decomposition process, crude sodium phenolate solution exchanges heat with clean sodium phenolate from the bottom of a deoiling tower, exchanges heat with oil and gas at the top of the deoiling tower, enters the tower from the top of the deoiling tower, and obtains clean sodium phenolate from the bottom of the tower after stripping and deoiling. The oil vapor distilled from the top of the deoiling tower exchanges heat with the raw materials, and then flows into the deoiling receiving tank automatically for oil-water separation after being cooled by a condensing cooler at the top of the deoiling tower, the separated water enters the drainage tank, and the oil enters the distillate receiving tank.
In the oil removal receiving tank, because the specific gravity difference between neutral oil and water in the crude phenoxide is small, oil and water are difficult to separate by simply relying on gravity, in order to enhance separation performance, in engineering application, besides the oil removal tower distillate pump is used for circulating from the distillate receiving tank to the oil removal receiving tank, light oil obtained by tar distillation is quantitatively fed into the oil removal receiving tank, so that the worsening condition of oil and water separation is changed.
In the engineering example, in view of convenience of operation, a light oil tank and a light oil pump are generally provided in the phenolate decomposition unit. In this way, the fire hazard level of the entire phenolate decomposition unit is increased due to the characteristics of the light oil medium, and a series of problems such as an increase in the explosion-proof level of equipment and an increase in engineering investment are brought about.
Disclosure of utility model
The utility model aims to provide a phenolate steaming and blowing system based on an air floatation principle, which overcomes the defects of the prior art, and forms an oil-gas mixed state for oil removal by utilizing a fan in an oil-water separator, and the oil-gas mixed state has the effect of realizing quick separation of oil and water in the oil-water separator.
In order to achieve the above purpose, the present utility model is realized by the following technical scheme:
The phenoxide steaming and blowing system based on the air floatation principle is characterized by comprising a deoiling tower, a tower top heat exchanger, a tower bottom heat exchanger, a bottom pump, a reboiler, a condensation cooler, an oil-water separator, a deoiling pump and a fan, wherein the top of the deoiling tower is connected with the tower top heat exchanger, the bottom of the deoiling tower is connected with the tower bottom heat exchanger through the bottom pump and a pipeline, and the reboiler is connected with the lower part of the deoiling tower through a pipeline; the oil-gas pipe of the tower top heat exchanger is communicated with the oil-water separator through the condensation cooler, a partition plate is arranged in the oil-water separator, the interior of the oil-water separator is divided into a separation area and a buffer area, the bottom of the buffer area is connected with an oil extraction pump through a pipeline, a mixing pipe is arranged in the separation area, a plurality of spray heads are arranged on the mixing pipe, openings of the mixing pipe are connected through a pipeline and an air outlet pipe of a fan, and an air inlet of the fan is communicated with an opening above the separation area.
The upper part in the separation zone is a gas space.
The fan is a fixed frequency fan or a variable frequency fan.
When the fan is a fixed-frequency fan, a regulating valve is arranged on a pipeline of the fan.
The volume ratio of the separation area to the buffer area in the oil-water separator is 2-3:1.
The spray head is any one of a conical nozzle, a square nozzle, a rectangular nozzle, an elliptic nozzle, a fan-shaped nozzle and a column flow nozzle.
The oil-water separator is a horizontal tank or a tank.
The pipeline where the fan is located is closed circulation, and other gases are not introduced from outside the system.
Compared with the prior art, the utility model has the beneficial effects that:
1) According to the utility model, the fan is used in the oil-water separator to enable the separated oil to form an oil-gas mixed state, the oil-gas mixed state enables oil and water to be rapidly separated, the purpose of continuous oil removal is achieved, the air floatation oil removal is added on the basis of gravity separation, and the oil-water separation efficiency is higher;
2) The process flow is simpler and more reasonable, the number of equipment is less, and the engineering investment is less;
3) The process flow of the utility model does not generate extra waste gas, which is beneficial to environmental protection.
Drawings
FIG. 1 is a schematic flow diagram of a phenolate steaming section of a conventional phenolate decomposition process;
FIG. 2 is a schematic diagram of an embodiment of a phenolate steaming and blowing system based on the air floatation principle of the present utility model;
Fig. 3 is a schematic diagram of the structure of an oil-water separator in an embodiment of the present utility model.
In the figure: 1-tower bottom heat exchanger, 2-tower top heat exchanger, 3-deoiling tower, 4-bottom pump, 5-reboiler, 6-condensing cooler, 7-oil-water separator, 8-oil-removing pump, 9-fan, 10-separation zone, 11-buffer zone, 12-baffle, 13-mixing tube and 14-nozzle.
Detailed Description
The technical solutions of the present utility model will be clearly and fully described below with reference to specific embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments.
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the embodiments that are needed in the embodiments or the prior art descriptions, and it is obvious that the embodiments in the following description are some embodiments of the present utility model and that other embodiments may be obtained according to these embodiments without inventive effort for a person skilled in the art.
The components of the embodiments of the present utility model generally described and illustrated in the specific embodiments herein can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as provided in the specific embodiments, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
Referring to fig. 2-3, the structure of an embodiment of a phenolate steaming and blowing system based on the air floatation principle of the utility model is schematically shown, which comprises a deoiling tower 3, a tower top heat exchanger 2, a tower bottom heat exchanger 1, a bottom pump 4, a reboiler 5, a condensation cooler 6, an oil-water separator 7, a deoiling pump 8 and a fan 9, wherein the top of the deoiling tower 3 is connected with the tower top heat exchanger 2, the bottom of the deoiling tower 3 is connected with the tower bottom heat exchanger 1 through the bottom pump 4 and a pipeline, and the reboiler 5 is connected with the lower part of the deoiling tower 3 through the pipeline; the oil-gas pipe of the tower top heat exchanger 2 is communicated with the oil-water separator 7 through the condensation cooler 6, the oil-water separator 7 is a horizontal tank body, a partition plate 12 is arranged in the oil-water separator 7 and divides the interior of the oil-water separator 7 into a separation area 10 and a buffer area 11, the volume ratio of the separation area 10 to the buffer area 11 in the oil-water separator 7 is 2.5:1, the upper part in the separation area 10 is a gas space, the bottom of the buffer area 11 is connected with the oil extraction pump 8 through a pipeline, a mixing pipe 13 is arranged in the separation area 10, an opening of the mixing pipe 13 is connected with an air outlet pipe of the fan 9 through a pipeline, an air inlet of the fan 9 is communicated with an opening above the separation area 10, and an oil-gas mixture state is formed by the separation of the fan on the extracted oil in the oil-water separator.
In the embodiment, the spray head 14 may be any one of a conical nozzle, a square nozzle, a rectangular nozzle, an elliptical nozzle, a fan nozzle, and a cylindrical flow nozzle.
When the method is used, the crude sodium phenolate solution exchanges heat with the clean sodium phenolate at the bottom of the deoiling tower 3 in the tower bottom heat exchanger 1, exchanges heat with oil and gas at the top of the deoiling tower 3 in the tower top heat exchanger 2, enters the deoiling tower 3, and obtains the clean sodium phenolate from the bottom of the deoiling tower 3 after steam stripping. The oil vapor distilled out from the oil removal tower 3 exchanges heat with the raw materials in the tower top heat exchanger 2, is cooled by the condensation cooler 6, and then flows into the oil-water separator 7 automatically to carry out oil-water separation. The oil-water separator 7 is divided into a separation area 10 and a buffer area 11 by a partition 12, an oil-water mixed phase enters the separation area 10 at the beginning of operation, after the liquid level is higher than a spray nozzle 14, a fan 9 is started, gas phase at the top of the oil-water separator is pumped out and pressurized by the fan 9 and then returns to the separation area of the oil-water separator 7, the gas phase is uniformly released in a fine bubble form through the spray nozzle, the bubbles wrap oil drops and rapidly rise to the liquid level, after the liquid level of the separation area continuously rises to the same height as the partition, the oil phase with lighter upper layer of the liquid level overflows to the buffer area, after the buffer area reaches a certain liquid level, an oil-removing pump 8 is started, and the oil is delivered.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The phenoxide steaming and blowing system based on the air floatation principle is characterized by comprising a deoiling tower, a tower top heat exchanger, a tower bottom heat exchanger, a bottom pump, a reboiler, a condensation cooler, an oil-water separator, a deoiling pump and a fan, wherein the top of the deoiling tower is connected with the tower top heat exchanger, the bottom of the deoiling tower is connected with the tower bottom heat exchanger through the bottom pump and a pipeline, and the reboiler is connected with the lower part of the deoiling tower through a pipeline; the oil-gas pipe of the tower top heat exchanger is communicated with the oil-water separator through the condensation cooler, a partition plate is arranged in the oil-water separator, the interior of the oil-water separator is divided into a separation area and a buffer area, the bottom of the buffer area is connected with an oil extraction pump through a pipeline, a mixing pipe is arranged in the separation area, a plurality of spray heads are arranged on the mixing pipe, openings of the mixing pipe are connected through a pipeline and an air outlet pipe of a fan, and an air inlet of the fan is communicated with an opening above the separation area.
2. A phenoxide steaming and blowing system based on the principle of air flotation according to claim 1 wherein the upper part in the separation zone is a gas space.
3. The phenolate steaming and blowing system based on the air floatation principle of claim 1, wherein the fan is a fixed-frequency fan or a variable-frequency fan.
4. The phenolate steaming and blowing system based on the air floatation principle of claim 1, wherein when the fan is a fixed-frequency fan, a regulating valve is arranged on a pipeline of the fan.
5. The phenolate steaming and blowing system based on the air floatation principle of claim 1, wherein the volume ratio of the separation area to the buffer area in the oil-water separator is 2-3:1.
6. The phenolate steaming and blowing system based on the air floatation principle of claim 1, wherein the spray nozzle is any one of a conical nozzle, a square nozzle, a rectangular nozzle, an elliptical nozzle, a fan nozzle and a cylindrical flow nozzle.
7. The phenolate steaming and blowing system based on the air floatation principle of claim 1, wherein the oil-water separator is a horizontal tank or a tank.
8. The phenolate steaming and blowing system based on the air floatation principle of claim 1, wherein the pipeline where the fan is located is closed circulation, and no other gas is introduced from outside the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322583954.7U CN220939140U (en) | 2023-09-22 | 2023-09-22 | Phenolate steaming and blowing system based on air floatation principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322583954.7U CN220939140U (en) | 2023-09-22 | 2023-09-22 | Phenolate steaming and blowing system based on air floatation principle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220939140U true CN220939140U (en) | 2024-05-14 |
Family
ID=91026205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322583954.7U Active CN220939140U (en) | 2023-09-22 | 2023-09-22 | Phenolate steaming and blowing system based on air floatation principle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220939140U (en) |
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2023
- 2023-09-22 CN CN202322583954.7U patent/CN220939140U/en active Active
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