CN219376621U - Tetrafluoroethylene recovery device - Google Patents
Tetrafluoroethylene recovery device Download PDFInfo
- Publication number
- CN219376621U CN219376621U CN202223396968.XU CN202223396968U CN219376621U CN 219376621 U CN219376621 U CN 219376621U CN 202223396968 U CN202223396968 U CN 202223396968U CN 219376621 U CN219376621 U CN 219376621U
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- tower
- pipeline
- tail gas
- gas absorption
- solvent
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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
- 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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Abstract
The utility model discloses a tetrafluoroethylene recovery device, which comprises a tail gas absorption tower, wherein a condenser is connected to the top of the tail gas absorption tower, a spray port of the tail gas absorption tower is connected to a tail gas absorption tower cooler, a tail gas feed port is connected to the tower bottom of the tail gas absorption tower, an analysis tower is connected to the tower bottom of the tail gas absorption tower through a tower bottom outlet pipeline, and the tower bottom outlet pipeline is connected with a material feed port of the analysis tower; the tower top of the resolving tower is connected with a resolving tower top condenser, the resolving tower top condenser is connected with a discharge pipeline, the resolving tower kettle is connected with a circulating pump pipeline and a solvent feeding pipeline, the circulating pump pipeline is connected with a solvent circulating pump, and the solvent circulating pump is connected with a tail gas absorption tower cooler through the feeding pipeline; the solvent feeding pipeline is connected with a solvent metering tank, and the solvent metering tank is connected with a nitrogen pipeline, an evacuating pipeline and a solvent pipeline; the tetrafluoroethylene recovery device reduces unit consumption, reduces the treatment capacity of the incineration device and reduces the production cost.
Description
Technical Field
The utility model relates to a tetrafluoroethylene recovery device for separating tetrafluoroethylene gas in tail gas, and belongs to the technical field of chemical industry.
Background
Tetrafluoroethylene, also known as perfluoroethylene, is an organic compound with a chemical formula of C2F4, is colorless gas at normal temperature and normal pressure, is insoluble in water, and is mainly used as a raw material for preparing novel heat-resistant plastics, engineering plastics, novel fire extinguishing agents and antifogging agents. In the production process of tetrafluoroethylene, tail gas containing tetrafluoroethylene materials can be generated, if separation and recovery treatment is not carried out, the unit consumption of products can be improved, meanwhile, the treatment capacity of an incinerator is increased, and the production cost is increased.
Disclosure of Invention
The utility model aims to provide a tetrafluoroethylene recovery device which can separate and recover tetrachloroethylene gas in tail gas.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the tetrafluoroethylene recovery device comprises a tail gas absorption tower, wherein the top of the tail gas absorption tower is connected with a tail gas absorption tower top condenser, and the tail gas absorption tower top condenser is connected with a pipeline of an incineration device; the spray port of the tail gas absorption tower is connected with a tail gas absorption tower cooler, the tower kettle of the tail gas absorption tower is connected with a tail gas feeding port, the tower kettle of the tail gas absorption tower is connected with a desorption tower through a tower kettle outlet pipeline, and the tower kettle outlet pipeline is connected with a material feeding port of the desorption tower; the tower top of the resolving tower is connected with a resolving tower top condenser, the resolving tower top condenser is connected with a discharging pipeline, the resolving tower kettle is connected with a circulating pump pipeline and a solvent feeding pipeline, the circulating pump pipeline is connected with a solvent circulating pump, and the solvent circulating pump is connected with a tail gas absorption tower cooler through the feeding pipeline; the solvent feeding pipeline is connected with a solvent metering tank, and the solvent metering tank is connected with a nitrogen pipeline, an evacuating pipeline and a solvent pipeline.
And a reflux pipeline is connected to the feed pipe and connected with the tower kettle of the resolution tower.
And a discharging regulating valve and a bypass are arranged on the outlet pipeline of the tower kettle.
And a thermometer is arranged on the feeding pipe line.
In order to control the discharge amount of the noncondensable gas, the pipeline of the incineration inlet device is provided with a regulating valve and a bypass. The pipeline of the incineration inlet device is provided with a flowmeter and a bypass.
In order to control the tetrafluoroethylene gas discharge amount, the discharge pipeline is provided with a regulating valve and a bypass.
In order to carry out corresponding measurement, the tail gas absorption tower is provided with a thermometer, a liquid level meter, a pressure remote transmission instrument and a safety valve. The analysis tower is provided with a thermometer, a liquid level meter, a pressure remote transmission instrument and a safety valve.
And the solvent metering tank is provided with a pressure remote transmission and liquid level monitoring instrument.
The tetrafluoroethylene recovery device of the utility model adopts the mode of conveying the tail gas containing tetrafluoroethylene materials to the tail gas absorption tower, spraying the solvent to the tetrafluoroethylene in the absorbing materials in the tail gas absorption tower by cryogenic and high-pressure rectification, dissolving the tetrafluoroethylene in the solvent, and then separating and recovering the tetrafluoroethylene in the solvent by the analysis tower, thereby reducing the unit consumption, reducing the treatment capacity of the incineration device and reducing the production cost.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the present utility model.
Detailed Description
Tetrafluoroethylene recovery device includes:
the tail gas absorption tower 3, the top of the tail gas absorption tower 3 is connected with a tail gas absorption tower top condenser 2, the tail gas absorption tower top condenser 2 is connected with a feeding and burning device pipeline 1, the feeding and burning device pipeline 1 is provided with a regulating valve and is provided with a bypass, and meanwhile, the feeding and burning device pipeline 1 is provided with a flowmeter and is provided with a bypass. The spray opening of the tail gas absorption tower 3 is connected with a tail gas absorption tower cooler 4, a tower kettle of the tail gas absorption tower 3 is connected with a tail gas feeding opening 5, a tower kettle of the tail gas absorption tower 3 is connected with a resolving tower 11 through a tower kettle outlet pipeline 7, and the tower kettle outlet pipeline 7 is connected with a material feeding opening of the resolving tower 11. And a discharging regulating valve and a bypass are arranged on the tower kettle outlet pipeline 7. The tail gas absorption tower 3 is provided with a thermometer, a liquid level meter, a pressure remote transmission instrument and a safety valve.
The tower top of the resolving tower 11 is connected with a resolving tower top condenser 12, the resolving tower top condenser 12 is connected with a discharging pipeline 13, and the discharging pipeline 13 is provided with a regulating valve and a bypass. The tower kettle of the resolving tower 11 is connected with a circulating pump pipeline 9 and a solvent feeding pipeline 10, the circulating pump pipeline 9 is connected with a solvent circulating pump 17, and the solvent circulating pump 17 is connected with the tail gas absorption tower cooler 4 through a feeding pipeline 6. A thermometer is arranged on the feeding line 6. And a reflux pipeline 8 is connected to the feeding pipeline 6, and the reflux pipeline 8 is connected with a tower kettle of a resolution tower 11. The solvent feed line 10 is connected to a solvent metering tank 18, and the solvent metering tank 18 is connected to a nitrogen line 14, an evacuation line 15, and a solvent line 16. The analysis tower 11 is provided with a thermometer, a liquid level meter, a pressure remote transmission instrument and a safety valve. The solvent metering tank 18 is provided with a pressure remote transmission and liquid level monitoring instrument.
The number of the solvent circulation pumps 17 is 2 to prevent the absorption effect of the device from being affected by pump damage. The tail gas absorption tower 3 and the desorption tower 11 are both packed towers, and tower packing is silk screen corrugated packing. The tail gas absorption tower top condenser 2, the analysis tower top condenser 12 and the tail gas absorption tower cooler 4 are single tube type shell-and-tube heat exchangers, and adopt refrigerant at minus 35 ℃.
The above embodiments do not limit the present utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of the present utility model.
Claims (10)
1. The tetrafluoroethylene recovery device is characterized by comprising a tail gas absorption tower, wherein the top of the tail gas absorption tower is connected with a top condenser of the tail gas absorption tower, the top condenser of the tail gas absorption tower is connected with a pipeline of an incinerator, a spray port of the tail gas absorption tower is connected with a tail gas absorption tower cooler, a tower kettle of the tail gas absorption tower is connected with a tail gas feeding port, a tower kettle of the tail gas absorption tower is connected with an analysis tower through a tower kettle outlet pipeline, and the tower kettle outlet pipeline is connected with a material feeding port of the analysis tower; the tower top of the resolving tower is connected with a resolving tower top condenser, the resolving tower top condenser is connected with a discharging pipeline, the resolving tower kettle is connected with a circulating pump pipeline and a solvent feeding pipeline, the circulating pump pipeline is connected with a solvent circulating pump, and the solvent circulating pump is connected with a tail gas absorption tower cooler through the feeding pipeline; the solvent feeding pipeline is connected with a solvent metering tank, and the solvent metering tank is connected with a nitrogen pipeline, an evacuating pipeline and a solvent pipeline.
2. The tetrafluoroethylene recovery apparatus according to claim 1, wherein a reflux line is connected to the feed line, and the reflux line is connected to the column bottom of the desorption column.
3. The tetrafluoroethylene recovery apparatus according to claim 1, wherein a discharge regulating valve and a bypass are provided in the outlet line of the column bottom.
4. The tetrafluoroethylene recovery apparatus according to claim 1, wherein a thermometer is provided on the feed line.
5. The tetrafluoroethylene recovery device according to claim 1, wherein the incineration device inlet line is provided with a regulating valve and with a bypass.
6. The tetrafluoroethylene recovery device according to claim 1, wherein the incineration device inlet line is provided with a flow meter and with a bypass.
7. The tetrafluoroethylene recovery device according to claim 1, wherein the discharge line is provided with a regulating valve and with a bypass.
8. The tetrafluoroethylene recovery apparatus according to claim 1, wherein the tail gas absorption tower is provided with a thermometer, a level gauge, a pressure remote transmission instrument and a safety valve.
9. The tetrafluoroethylene recovery apparatus according to claim 1, wherein the analyzing tower is provided with a thermometer, a level gauge, a pressure remote meter and a safety valve.
10. The tetrafluoroethylene recovery device according to claim 1, wherein the solvent metering tank is provided with a pressure remote transmission and liquid level monitoring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223396968.XU CN219376621U (en) | 2022-12-19 | 2022-12-19 | Tetrafluoroethylene recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223396968.XU CN219376621U (en) | 2022-12-19 | 2022-12-19 | Tetrafluoroethylene recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219376621U true CN219376621U (en) | 2023-07-21 |
Family
ID=87190829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223396968.XU Active CN219376621U (en) | 2022-12-19 | 2022-12-19 | Tetrafluoroethylene recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219376621U (en) |
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2022
- 2022-12-19 CN CN202223396968.XU patent/CN219376621U/en active Active
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