CN201862283U - Extracting device for ethanediol and acetaldehyde in esterification waste gas - Google Patents
Extracting device for ethanediol and acetaldehyde in esterification waste gas Download PDFInfo
- Publication number
- CN201862283U CN201862283U CN201020544869XU CN201020544869U CN201862283U CN 201862283 U CN201862283 U CN 201862283U CN 201020544869X U CN201020544869X U CN 201020544869XU CN 201020544869 U CN201020544869 U CN 201020544869U CN 201862283 U CN201862283 U CN 201862283U
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- acetaldehyde
- recovery column
- storage tank
- ethanediol
- waste gas
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Abstract
The utility model relates to an extracting device for ethanediol and acetaldehyde in esterification waste gas, belonging to the technical field of chemical and mechanical equipment. The extracting device for the ethanediol and the acetaldehyde in the esterification waste gas is characterized by comprising a first recovery tower (1), an ethanediol storing tank (4), a waste water and acetaldehyde storing tank (6), a second recovery tower (8), a waste water pipe (10) and an acetaldehyde storing tank (12). The extracting device for the ethanediol and the acetaldehyde in the esterification waste gas recovers waste water, the ethanediol, the acetaldehyde in the esterification waste gas according to different boiling points. Therefore, plenty of resources are saved, the running cost of a device for processing the three wastes, and the environment is protected.
Description
(1) technical field
The utility model relates to the extraction element of ethylene glycol and acetaldehyde in a kind of esterification waste gas, belongs to the chemical mechanical equipment technical field.
(2) background technology
Contain 3.5% ethylene glycol and 10% acetaldehyde in the waste gas that production of polyester produced, these waste gas all were transported in the three wastes processing unit and handled in the past.Not only waste a large amount of resources yet do like this, increased the operating cost of three wastes processing unit, also caused the pollution of environment.
(3) summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of and has economized on resources, reduced cost, and helps protecting the extraction element of ethylene glycol and acetaldehyde in the esterification waste gas of environment.
The purpose of this utility model is achieved in that
The extraction element of ethylene glycol and acetaldehyde in a kind of esterification waste gas is characterized in that: it comprises first recovery column, ethylene glycol storage tank, waste water and acetaldehyde storage tank, second recovery column, waste pipe and acetaldehyde storage tank;
The side of described first recovery column is provided with flue gas leading, the bottom of described first recovery column links to each other with the ethylene glycol storage tank, the top of described first recovery column links to each other with the acetaldehyde storage tank with waste water by first condenser, described waste water links to each other with the side of second recovery column by preheater with the acetaldehyde storage tank, the bottom of described second recovery column links to each other with waste pipe, and the top of described second recovery column links to each other with the acetaldehyde storage tank by second condenser.
The beneficial effect that the utlity model has is:
The extraction element of ethylene glycol and acetaldehyde reclaims the waste water in the esterification waste gas, acetaldehyde and ethylene glycol in this esterification waste gas according to obstructed boiling point rectifying.So not only save a large amount of resources, reduced the operating cost of three wastes processing unit, also protected environment.
(4) description of drawings
Fig. 1 is the structural representation of the extraction element of ethylene glycol and acetaldehyde in the utility model esterification waste gas.
Wherein: first recovery column 1, flue gas leading 2, first gas are carried steam pipe 3, ethylene glycol storage tank 4, first condenser 5, waste water and acetaldehyde storage tank 6, preheater 7, second recovery column 8, second gas and are carried steam pipe 9, waste pipe 10, second condenser 11, acetaldehyde storage tank 12.
(5) specific embodiment
As Fig. 1, the utility model relates to the extraction element of ethylene glycol and acetaldehyde in a kind of esterification waste gas, comprises that first recovery column 1, flue gas leading 2, first gas carries steam pipe 3, ethylene glycol storage tank 4, first condenser 5, waste water and acetaldehyde storage tank 6, preheater 7, second recovery column 8, second gas and carry steam pipe 9, waste pipe 10, second condenser 11 and acetaldehyde storage tank 12;
The side of described first recovery column 1 is carried steam pipe 3 with the flue gas leading 2 and first gas respectively and is connected, the bottom of described first recovery column 1 links to each other with ethylene glycol storage tank 4, the top of described first recovery column 1 links to each other by the import of pipeline with first condenser 5, the outlet of described first condenser 5 links to each other with 6 imports of acetaldehyde storage tank with waste water by pipeline, described waste water links to each other by the top of pump with first recovery column 1 with the refluxing opening of acetaldehyde storage tank 6, described waste water links to each other by the import of pump with preheater 7 with the outlet of acetaldehyde storage tank 6, the outlet of described preheater 7 links to each other with the side of second recovery column 8, the side of described second recovery column 8 is carried steam pipe 9 with second gas and is connected, the bottom of described second recovery column 8 links to each other with waste pipe 10, the top of described second recovery column 8 links to each other by the import of pipeline with second condenser 11, the outlet of described second condenser 11 links to each other by the import of pipeline with acetaldehyde storage tank 12, and the refluxing opening of described acetaldehyde storage tank 12 links to each other by the top of pump with second recovery column 8.
The extraction element of ethylene glycol and acetaldehyde feeds waste gas in the first recovery column 1 earlier in this esterification waste gas, and the temperature of first recovery column 1 cat head is controlled at 100 ℃～101 ℃, waste gas and acetaldehyde are separated from the top of first recovery column 1 earlier, ethylene glycol just is transported to the ethylene glycol storage tank 4 from the bottom of first recovery column 1, in order to the rectifying reuse of esterification step.Enter waste water and acetaldehyde storage tank 6 from first recovery column 1 top separated waste gases and acetaldehyde after through 5 coolings of first condenser, waste water and acetaldehyde are thrown in the preheater 7 by pump and are heated, and feed in the second recovery column 8 again.Adopt compression rectification in the second recovery column 8, to improve the boiling point of acetaldehyde, it can be reclaimed fully, the tower top temperature of second recovery column 8 is controlled at about 90 ℃, make the acetaldehyde under the pressurized state isolate from the cat head of second recovery column 8, and, be recycled by being transported in the acetaldehyde storage tank 12 behind second condenser 11.Second recovery column 8 bottoms then are transported to waste water in three waste-removing devices by waste pipe 10 and handle.
Claims (1)
1. the extraction element of ethylene glycol and acetaldehyde in the esterification waste gas, it is characterized in that: it comprises first recovery column (1), ethylene glycol storage tank (4), waste water and acetaldehyde storage tank (6), second recovery column (8), waste pipe (10) and acetaldehyde storage tank (12);
The side of described first recovery column (1) is provided with flue gas leading (2), the bottom of described first recovery column (1) links to each other with ethylene glycol storage tank (4), the top of described first recovery column (1) links to each other with acetaldehyde storage tank (6) with waste water by first condenser (5), described waste water links to each other by the side of preheater (7) with second recovery column (8) with acetaldehyde storage tank (6), the bottom of described second recovery column (8) links to each other with waste pipe (10), and the top of described second recovery column (8) links to each other with acetaldehyde storage tank (12) by second condenser (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020544869XU CN201862283U (en) | 2010-09-27 | 2010-09-27 | Extracting device for ethanediol and acetaldehyde in esterification waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020544869XU CN201862283U (en) | 2010-09-27 | 2010-09-27 | Extracting device for ethanediol and acetaldehyde in esterification waste gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201862283U true CN201862283U (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020544869XU Expired - Fee Related CN201862283U (en) | 2010-09-27 | 2010-09-27 | Extracting device for ethanediol and acetaldehyde in esterification waste gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201862283U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212424A (en) * | 2013-03-08 | 2013-07-24 | 上海聚友化工有限公司 | Method for recycling glycol and acetaldehyde in polyester waste water |
| CN103936572A (en) * | 2014-03-22 | 2014-07-23 | 江阴市飞鸿机械有限公司 | System for recovering acetaldehyde and glycol in polyester waste water |
| CN110423197A (en) * | 2019-09-17 | 2019-11-08 | 凯瑞环保科技股份有限公司 | A kind of device and method using low concentration ethylene glycol production glycol acetate |
-
2010
- 2010-09-27 CN CN201020544869XU patent/CN201862283U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212424A (en) * | 2013-03-08 | 2013-07-24 | 上海聚友化工有限公司 | Method for recycling glycol and acetaldehyde in polyester waste water |
| CN103212424B (en) * | 2013-03-08 | 2015-02-11 | 上海聚友化工有限公司 | Method for recycling glycol and acetaldehyde in polyester waste water |
| CN103936572A (en) * | 2014-03-22 | 2014-07-23 | 江阴市飞鸿机械有限公司 | System for recovering acetaldehyde and glycol in polyester waste water |
| CN103936572B (en) * | 2014-03-22 | 2016-03-23 | 江阴市飞鸿机械有限公司 | The device of acetaldehyde and ethylene glycol is reclaimed in polyester waste water |
| CN110423197A (en) * | 2019-09-17 | 2019-11-08 | 凯瑞环保科技股份有限公司 | A kind of device and method using low concentration ethylene glycol production glycol acetate |
| CN110423197B (en) * | 2019-09-17 | 2023-11-14 | 凯瑞环保科技股份有限公司 | Device and method for producing ethylene glycol diacetate by using low-concentration ethylene glycol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20110927 |