CN201312996Y - Vacuum distillation column - Google Patents
Vacuum distillation column Download PDFInfo
- Publication number
- CN201312996Y CN201312996Y CNU2008202202027U CN200820220202U CN201312996Y CN 201312996 Y CN201312996 Y CN 201312996Y CN U2008202202027 U CNU2008202202027 U CN U2008202202027U CN 200820220202 U CN200820220202 U CN 200820220202U CN 201312996 Y CN201312996 Y CN 201312996Y
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- CN
- China
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- sulfolane
- product
- vacuum distillation
- distillation column
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
A vacuum distillation column relates to a sulfolane distillation device in equipment for producing sulfolane. The vacuum distillation column is designed for solving the problems that if the temperature of a condenser of the existing sulfolane vacuum distillation column is excessively low, the product purity is reduced; and if the temperature is high, more sulfolane is discharged. The vacuum distillation column comprises a return section and an air inlet thereon, a stripping section and fillers therein, a product recovery section and a product outlet, a distillation section is arranged above the product recovery section, the fillers are arranged in the distillation section, a tubular condenser is arranged above the distillation section, a cooling water inlet and an outlet are formed on the tubular condenser, a column top purification section is additionally arranged above the tubular condenser, the fillers are arranged in the column top purification section, and a waste gas outlet is formed on the column top purification section. The vacuum distillation column has the advantages that the sulfolane content in the exhaust non-condensable gas is small, the product purify of the sulfolane is high, the product purify after the distillation by the vacuum distillation column achieves 99.7 percent, compared with the product purity produced by the prior art, the product purify is improved by 0.4 percent.
Description
Technical field:
The utility model relates to a kind of sulfolane rectifier unit of producing in the sulfolane equipment.
Background technology:
Existing sulfolane rectification under vacuum tower, the gas that contains sulfolane and light component enters the rectification under vacuum tower from air inlet, in rectifying section, will flow into exhausting section under the sulfolane fractionation in the gas, also have part sulfolane and light component to enter condenser, if condenser temperature is low excessively, the sulfolane recovering effect is good, refluxes but also more light component can be condensed into liquid, reduces product purity; If the temperature height has more sulfolane again and is discharged from, with hanging down disadvantageous one side is arranged all so temperature is high.
Summary of the invention:
Technical problem to be solved in the utility model provides a kind of sulfolane rectifying purity height, does not have the rectification under vacuum tower that more sulfolane is discharged from again.
Above-mentioned purpose is achieved in that its bottom is a reflux section, air inlet is arranged on the reflux section, the return duct that is connected with rectifying still is arranged at the reflux section bottom, reflux section top with carry stream and section be connected, carry in the stream section filler is arranged, carrying stream section top is the product exhausting section, on the product exhausting section products export is arranged, product exhausting section top is a rectifying section, and filler is arranged in the rectifying section, and there is shell and tube condenser the top of rectifying section, cooling water inlet and outlet are arranged on the shell and tube condenser, we set up the cat head rectifying section above shell and tube condenser, in the cat head rectifying section filler is arranged, and on the cat head rectifying section waste gas outlet are arranged.
The utility model has the advantages that: owing to set up the cat head rectifying section at cat head, the mist temperature of discharging is played proportionality action, part sulfolane is wherein reclaimed again, make its drop flow back in the tower, so sulfolane content is few from the fixed gas that waste gas outlet is discharged, so just can suitably improve condenser temperature, to improve the sulfolane product purity, test factually, product purity after the utility model distillation reaches 99.7%, and the product purity of producing than prior art improves 0.4%.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment:
With reference to accompanying drawing, its bottom is a reflux section 2, air inlet 1 is arranged on the reflux section, the return duct 12 that is connected with rectifying still is arranged at the reflux section bottom, reflux section top with carry stream sections 3 and be connected, carry in the stream section filler is arranged, carrying stream section top is product exhausting section 4, and products export 5 is arranged on the product exhausting section, and product exhausting section top is a rectifying section 6, filler is arranged in the rectifying section, there is shell and tube condenser 8 top of rectifying section, and cooling water inlet 7 and outlet 11 are arranged on the shell and tube condenser, sets up cat head rectifying section 9 above shell and tube condenser, in the cat head rectifying section filler is arranged, waste gas outlet 10 is arranged on the cat head rectifying section.
Claims (1)
1, the rectification under vacuum tower, comprise reflux section (2), air inlet (1) is arranged on the reflux section, the return duct (12) that is connected with rectifying still is arranged at the reflux section bottom, reflux section top with carry stream section (3) and be connected, carry in the stream section filler is arranged, carrying stream section top is product exhausting section (4), and products export (5) is arranged on the product exhausting section, and product exhausting section top is rectifying section (6), filler is arranged in the rectifying section, there is shell and tube condenser (8) top of rectifying section, and cooling water inlet (7) and outlet (11) are arranged on the shell and tube condenser, it is characterized in that setting up above shell and tube condenser cat head rectifying section (9), in the cat head rectifying section filler is arranged, waste gas outlet (10) is arranged on the cat head rectifying section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202202027U CN201312996Y (en) | 2008-12-03 | 2008-12-03 | Vacuum distillation column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202202027U CN201312996Y (en) | 2008-12-03 | 2008-12-03 | Vacuum distillation column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201312996Y true CN201312996Y (en) | 2009-09-23 |
Family
ID=41124782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202202027U Expired - Fee Related CN201312996Y (en) | 2008-12-03 | 2008-12-03 | Vacuum distillation column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201312996Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921184A (en) * | 2012-11-09 | 2013-02-13 | 江苏民生特种设备集团有限公司 | Distillation rectifying tower |
| CN109232522A (en) * | 2018-09-30 | 2019-01-18 | 辽阳辽东精细化工有限公司 | Sulfolane continuous process system and technique |
-
2008
- 2008-12-03 CN CNU2008202202027U patent/CN201312996Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921184A (en) * | 2012-11-09 | 2013-02-13 | 江苏民生特种设备集团有限公司 | Distillation rectifying tower |
| CN102921184B (en) * | 2012-11-09 | 2014-07-23 | 江苏民生特种设备集团有限公司 | Distillation rectifying tower |
| CN109232522A (en) * | 2018-09-30 | 2019-01-18 | 辽阳辽东精细化工有限公司 | Sulfolane continuous process system and technique |
| CN109232522B (en) * | 2018-09-30 | 2023-09-26 | 辽阳辽东精细化工有限公司 | Sulfolane continuous production system and process |
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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: 20090923 Termination date: 20101203 |