CN201744180U - Vacuum rectifying tower - Google Patents
Vacuum rectifying tower Download PDFInfo
- Publication number
- CN201744180U CN201744180U CN201020268277XU CN201020268277U CN201744180U CN 201744180 U CN201744180 U CN 201744180U CN 201020268277X U CN201020268277X U CN 201020268277XU CN 201020268277 U CN201020268277 U CN 201020268277U CN 201744180 U CN201744180 U CN 201744180U
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- China
- Prior art keywords
- section
- rectifying
- sulfolane
- product
- filler
- 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
The utility model discloses a vacuum rectifying tower and relates to a sulfolane rectifying device in sulfolane producing equipment, and the vacuum rectifying tower is designed to aim to solve the problems existing in a sulfolane vacuum rectifying tower. The product purity is lowered if the condenser temperature is too low; more sulfolane is discharged if the condenser temperature is too high. The vacuum rectifying tower comprises a reflux section, an air inlet on the reflux section, a stripping section, a filler in the stripping section, a product recycling section and a product outlet, wherein a rectifying section is arranged above the product recycling section; the filler is arranged in the rectifying section; a shell and tube condenser is arranged above the rectifying section, and a cooling water inlet and a cooling water outlet are arranged on the shell and tube condenser; a tower top purification section is arranged above the shell and tube condenser; the filler is arranged in the tower top purification section; and a water gas outlet is arranged on the tower top purification section. The sulfolane content of discharged non-condensable gas is low and the purity of a sulfolane product is high. The purity of a product rectified by the vacuum rectifying tower is up to 99.7 percent and is 0.4 percent higher than the purity of of the product produced in the prior art.
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. 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 |
|---|---|---|---|
| CN201020268277XU CN201744180U (en) | 2010-07-23 | 2010-07-23 | Vacuum rectifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020268277XU CN201744180U (en) | 2010-07-23 | 2010-07-23 | Vacuum rectifying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201744180U true CN201744180U (en) | 2011-02-16 |
Family
ID=43578853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020268277XU Expired - Fee Related CN201744180U (en) | 2010-07-23 | 2010-07-23 | Vacuum rectifying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201744180U (en) |
-
2010
- 2010-07-23 CN CN201020268277XU patent/CN201744180U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20160723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |