CN215841689U - Ethylene glycol rectification device - Google Patents
Ethylene glycol rectification device Download PDFInfo
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- CN215841689U CN215841689U CN202122484963.1U CN202122484963U CN215841689U CN 215841689 U CN215841689 U CN 215841689U CN 202122484963 U CN202122484963 U CN 202122484963U CN 215841689 U CN215841689 U CN 215841689U
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Abstract
The utility model discloses an ethylene glycol rectification device, which comprises a butanediol removing tower (1), a butanediol removing tower top reflux tank (2), a crude ethylene glycol rectification tower (3), an ethylene glycol refining tower (4) and a crude ethylene glycol rectification tower top reflux tank (5); the top of the butanediol removing tower (1) is connected with a butanediol removing tower top reflux tank (2) and is connected with a crude ethylene glycol rectifying tower (3); the top of the crude ethylene glycol rectifying tower (3) is connected with a reflux tank (5) at the top of the crude ethylene glycol rectifying tower; the lower part of the crude glycol rectifying tower (3) is connected with a glycol refining tower (4), qualified product glycol produced in the glycol rectifying device is further rectified, butanediol light components in the qualified product glycol are removed, the qualified product glycol is purified to high-quality product glycol, the yield of the high-quality product is improved, and the added value of products is increased.
Description
Technical Field
The utility model discloses a crude glycol purification process in a glycol rectification device, and relates to the optimization of a rectification process in the chemical production industry of coal-to-ethylene glycol rectification, the yield of high-quality glycol is improved, and the sales amount of products is increased.
Background
At present, crude glycol is not further purified in a coal glycol rectification device, and in order to ensure that a high-quality high-grade product glycol is extracted by a refining tower, the extraction amount of the high-grade product glycol at the top of a butanediol tower is increased, so that the extraction rate of the high-grade product glycol is reduced, and the sale amount is increased.
Disclosure of Invention
The crude glycol purification process can maintain stable production working conditions, further improve the extraction rate of high-quality glycol and increase the sales amount.
The utility model provides an ethylene glycol rectification device, which comprises a butanediol removing tower (1), a butanediol removing tower top reflux tank (2), a crude ethylene glycol rectification tower (3), an ethylene glycol refining tower (4) and a crude ethylene glycol rectification tower top reflux tank (5); the top of the butanediol removing tower (1) is connected with a butanediol removing tower top reflux tank (2) and is connected with a crude ethylene glycol rectifying tower (3); the top of the crude ethylene glycol rectifying tower (3) is connected with a reflux tank (5) at the top of the crude ethylene glycol rectifying tower; the lower part of the crude ethylene glycol rectifying tower (3) is connected with an ethylene glycol refining tower (4).
Further, in the technical scheme, the butanediol removing tower (1) is connected with a raw material inlet pipeline.
Further, in the above technical solution, a raw material pump is provided on the raw material inlet pipe.
Further, in the technical scheme, the bottom of the butanediol removing tower top reflux tank (2) is connected with the middle part of the crude ethylene glycol rectifying tower (3).
Furthermore, in the technical scheme, the bottom of the alcohol rectifying tower (3) is connected with an ethylene glycol refining tower (4).
Further, in the technical scheme, the ethylene glycol refining tower (4) is connected with a product tank.
After the crude glycol solution is rectified by a butanediol removing tower, a solution containing a small amount of butanediol is extracted from the tower top and is sent to a butanediol removing tower top reflux tank to obtain a qualified product glycol, the qualified product glycol solution is sent to a crude glycol rectifying tower to be rectified, butanediol in the crude glycol solution is further extracted and is sent to a crude glycol rectifying tower top reflux tank, and tower bottom liquid is sent to an ethylene glycol refining tower to be further rectified.
Drawings
FIG. 1 is a schematic diagram of a structure of an ethylene glycol rectification apparatus;
in the figure, 1, a butanediol removing tower, 2, a butanediol removing tower top reflux tank, 3, a crude glycol rectifying tower, 4, a glycol refining tower and 5, a crude glycol rectifying tower top reflux tank.
Detailed Description
The following non-limiting examples will allow one of ordinary skill in the art to more fully understand the present invention, but are not intended to limit the utility model in any way.
Example 1
As shown in fig. 1, an ethylene glycol rectification device is characterized in that: comprises a butanediol removing tower 1, a butanediol removing tower top reflux tank 2, a crude glycol rectifying tower 3, an ethylene glycol refining tower 4 and a crude glycol rectifying tower top reflux tank 5; the top of the butanediol removing tower 1 is connected with a butanediol removing tower top reflux tank 2 and a crude ethylene glycol rectifying tower 3; the upper part of the crude ethylene glycol rectifying tower 3 is connected with a reflux tank 5 at the top of the crude ethylene glycol rectifying tower; the bottom of the crude ethylene glycol rectifying tower 3 is connected with an ethylene glycol refining tower 4; the butanediol removing tower 1 is connected with a raw material inlet pipeline; a raw material pump is arranged on the raw material inlet pipeline; the bottom of the butanediol removing tower top reflux tank 2 is connected with the middle part of a crude glycol rectifying tower 3; the top of the crude ethylene glycol rectifying tower 3 is connected with a reflux tank 5 at the top of the crude ethylene glycol rectifying tower; the ethylene glycol refining tower 4 is connected with a product tank.
It will be apparent to those skilled in the art from this disclosure that many changes and modifications can be made, or equivalents modified, in the embodiments of the utility model without departing from the scope of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (6)
1. An ethylene glycol rectification device is characterized in that: comprises a butanediol removing tower (1), a butanediol removing tower top reflux tank (2), a crude glycol rectifying tower (3), a glycol refining tower (4) and a crude glycol rectifying tower top reflux tank (5); the top of the butanediol removing tower (1) is connected with a butanediol removing tower top reflux tank (2) and is connected with a crude ethylene glycol rectifying tower (3); the top of the crude ethylene glycol rectifying tower (3) is connected with a reflux tank (5) at the top of the crude ethylene glycol rectifying tower; the lower part of the crude ethylene glycol rectifying tower (3) is connected with an ethylene glycol refining tower (4).
2. The ethylene glycol rectification plant of claim 1, wherein: the butanediol removing tower (1) is connected with a raw material inlet pipeline.
3. The ethylene glycol rectification plant of claim 2, wherein: a raw material pump is arranged on the raw material inlet pipeline.
4. The ethylene glycol rectification plant of claim 1, wherein: the bottom of the butanediol removing tower top reflux tank (2) is connected with the middle part of the crude glycol rectifying tower (3).
5. The ethylene glycol rectification plant of claim 1, wherein: the bottom of the crude ethylene glycol rectifying tower (3) is connected with an ethylene glycol refining tower (4).
6. The ethylene glycol rectification plant of claim 1, wherein: the ethylene glycol refining tower (4) is connected with a product tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122484963.1U CN215841689U (en) | 2021-10-15 | 2021-10-15 | Ethylene glycol rectification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122484963.1U CN215841689U (en) | 2021-10-15 | 2021-10-15 | Ethylene glycol rectification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215841689U true CN215841689U (en) | 2022-02-18 |
Family
ID=80260632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122484963.1U Active CN215841689U (en) | 2021-10-15 | 2021-10-15 | Ethylene glycol rectification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215841689U (en) |
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2021
- 2021-10-15 CN CN202122484963.1U patent/CN215841689U/en active Active
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