CN202214307U - 1,4-butanediol residual liquid recycling system - Google Patents
1,4-butanediol residual liquid recycling system Download PDFInfo
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- CN202214307U CN202214307U CN2011203583761U CN201120358376U CN202214307U CN 202214307 U CN202214307 U CN 202214307U CN 2011203583761 U CN2011203583761 U CN 2011203583761U CN 201120358376 U CN201120358376 U CN 201120358376U CN 202214307 U CN202214307 U CN 202214307U
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- rectifying tower
- tower
- reboiler
- butyleneglycol
- butanediol
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Abstract
The utility model discloses a 1,4-butanediol residual liquid recycling system and relates to a waste liquid recycling system. The 1,4-butanediol residual liquid recycling system comprises a rectifying tower. The rectifying column is provided with a tower top gas outlet, a backflow liquid inlet, a feed inlet, a reboiler return opening, a tower bottom discharge hole and a reboiler removing opening. The tower top gas outlet is connected with an inlet of a condenser at the top of the rectifying tower, an outlet of the condenser at the top of the rectifying tower is connected with an inlet of a backflow tank of the rectifying tower, and an outlet of the backflow tank of the rectifying tower is connected with a 1,4-butanediol storage tank and the backflow liquid inlet. The feed inlet is connected with a butanediol residual liquid storage tank; the reboiler removing opening is connected with a reboiler inlet of the rectifying tower. A reboiler outlet of the rectifying tower is connected with the reboiler return opening; the tower bottom discharge hole is connected with a heavy oil storage tank. The recovery rate of the 1,4-butanediol residual liquid of the 1,4-butanediol residual liquid recycling system reaches above 90%, and the annual net profit increases greatly, thereby ease the situation that 1,4-butanediol is still in short supply in market at home, breaking the market blockage at abroad, and improving the resource utilization rate greatly.
Description
Technical field
The utility model relates to a kind of Mead-Bauer recovery system, belongs to waste liquid recovery technology and environmental technology field.
Background technology
1,4-butyleneglycol raffinate is 1, and 4-butyleneglycol rectifying workshop section removes a kind of waste liquid that produces in the residual process, and the main ingredient of this waste liquid is 1,4-butyleneglycol, pentenol, 4-acetaldol 3, M-BID etc., and wherein 1,4-butyleneglycol content reaches more than 70%.Because 1; The 4-butyleneglycol is a kind of fine chemical material of high technology content, and the market price reaches about 15000 yuan/ton, and its derived product is very high to its quality requirements; The purity general requirement is again more than 99.5%, so this waste liquid does not have the market space in its high-end derived product.At present, this part waste liquid of my company can only be sold to the low side client with price per ton about 800 yuan, causes financial loss to enterprise on the one hand, has also wasted resource.
1, therefore 4-butyleneglycol raffinate recovery technology gives birth to, and the technology of employing is rectifying, and gordian technique is operational path reasonable in design, still does nothing 1 at present, the custom-designed operational path of 4-butyleneglycol rectifying.
The utility model content
It is a kind of 1 that the technical problem that the utility model will solve has provided, 4-butyleneglycol raffinate recovery system, and it can obtain high yield, high-quality 1, and the 4-butyleneglycol reclaims liquid.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
1,4-butyleneglycol raffinate recovery system comprises rectifying tower, establishes overhead gas outlet, phegma import, opening for feed, reboiler on the said rectifying tower and returns at the bottom of Ta Kou, the tower discharge port and remove the reboiler mouth; Said overhead gas outlet is connected with the import of rectifying tower overhead condenser, and the outlet of rectifying tower overhead condenser is connected with the import of rectifying tower return tank, and respectively with 1, import is connected 4-butyleneglycol storage tank the outlet of rectifying tower return tank with phegma through pump; Opening for feed connects 1,4-butyleneglycol raffinate storage tank; Go the reboiler mouth to be connected with the import of rectifying tower still reboiler, the outlet of rectifying tower still reboiler is returned the tower mouth with reboiler and is connected; Discharge port connects the heavy oil storage tank at the bottom of the tower.
Further, also comprise a feed preheater, it is positioned at and connects 1, the pipeline of the opening for feed of 4-butyleneglycol raffinate storage tank and rectifying tower, be connected tower at the bottom of the infall of pipeline of discharge port and heavy oil storage tank; Discharging and 1 at the bottom of the tower, 4-butyleneglycol raffinate carries out heat exchange in feed preheater.
Also comprise a rectifying tower vacuum buffer tank, it is connected with the rectifying tower vacuum pump with the rectifying tower return tank.
Function introduction to above structure is following:
(1) T-101 (rectifying tower): utilize 1, the difference of each component boiling point is with 1 in the 4-butyleneglycol raffinate, and 4-butyleneglycol product separates with all the other components.Light constituent is in cat head extraction (being mainly 1, the 4-butyleneglycol), heavy constituent (being mainly high boiling material) extraction at the bottom of tower.
(2) E-101 (rectifying tower still reboiler): make its part vaporization through material at the bottom of the heating tower, become rising steam, for rectifying enriching section, stripping section and column plate vapour-liquid two are conducted heat mutually, mass transfer provides required heat.
(3) E-102 (rectifying tower overhead condenser): the gas phase light constituent of rectifying tower top is cooled to liquid.
(4) E-103 (feed preheater): utilize the tower still extraction liquid of rectifying tower to heat for the tower material that advances of rectifying tower, save the steam consumption of rectifying tower; Simultaneously also reduce the temperature of tower still extraction liquid, so that deliver to the heavy oil storage tank stores.
(5) V-101 (rectifying tower return tank): collect the lime set that overhead condenser cools down, a part of as overhead product extraction to 1,4-butyleneglycol storage tank, another part returns in the tower as the trim the top of column of rectifying tower.
(6) V-102 (rectifying tower vacuum buffer tank): as gas buffer equipment, stable system pressure; Simultaneously, the place of vapor-liquid separation can also be provided, prevent the liquid suck-back, damage vacuum pump.
The recovery system of the utility model utilizes 1, and the difference of each component boiling point is with 1 in the 4-butyleneglycol raffinate, and 4-butyleneglycol product separates with all the other components.Light constituent is cat head extraction (being mainly 1, the 4-butyleneglycol), and heavy constituent (being mainly high boiling material) extraction at the bottom of tower has also realized heavy constituent and 1, and the thermal cycling of 4-butyleneglycol raffinate raw material is used.The rectifying 1 of the utility model, the recovery of 4-butyleneglycol raffinate reaches more than 90%, and therefore annual net profit increases millions of; Alleviated domestic 1 on the one hand; The 4-butyleneglycol market situation that supply falls short of demand has broken through external market and has blocked, and has also improved resource utilization greatly.
Description of drawings
Accompanying drawing is used to provide the further understanding to the utility model, and constitutes the part of specification sheets, is used to explain the utility model with the embodiment of the utility model, does not constitute the restriction to the utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the rectifying tower of the utility model recovery system;
Fig. 2 is that the recovery system of the utility model connects synoptic diagram.
Embodiment
Describe below in conjunction with the preferred embodiment of accompanying drawing, should be appreciated that preferred embodiment described herein only is used for explanation and explains the utility model, and be not used in qualification the utility model the utility model.
Like Fig. 1, shown in Figure 2,1,4-butyleneglycol raffinate recovery system comprises rectifying tower T-101, establishes overhead gas outlet a, phegma import b, opening for feed c, reboiler on the said rectifying tower T-101 and returns at the bottom of tower mouth d, the tower discharge port e and remove reboiler mouth f; Overhead gas outlet a is connected with rectifying tower overhead condenser E-102 import; Rectifying tower overhead condenser E-102 outlet is connected with rectifying tower return tank V-101 import; Respectively with 1,4-butyleneglycol storage tank is connected with phegma import b through pump in rectifying tower return tank V-101 outlet; Opening for feed c connects 1,4-butyleneglycol raffinate storage tank; Go reboiler mouth f to be connected with rectifying tower still reboiler E-101 import, rectifying tower still reboiler E-101 outlet is returned tower mouth d with reboiler and is connected; Discharge port e connects the heavy oil storage tank at the bottom of the tower.
Also comprise a feed preheater E-103, it is positioned at and connects 1, the pipeline of the opening for feed c of 4-butyleneglycol raffinate storage tank and rectifying tower T-101, be connected tower at the bottom of the infall of pipeline of discharge port e and heavy oil storage tank; Discharging and 1 at the bottom of the tower, 4-butyleneglycol raffinate carries out heat exchange in feed preheater E-103.
Also comprise a rectifying tower vacuum buffer tank V-102, it is connected with rectifying tower vacuum pump P-104 with rectifying tower return tank V-101.
Aforesaid device and tank body such as rectifying tower, condensing surface and reboiler etc. are commonly used in the industry, and how tame domestic manufacturer be on sale, like Tianda Beiyang Chemical Equipment Co., Ltd., Tianjin City.
Use principle:
From 1 of tank field, 4-butyleneglycol raffinate is through the tank field fresh feed pump, at first with the tower still material of rectifying tower T-101 in feed preheater E-103 after the heat exchange; Be sent to rectifying tower T-101 middle part, the gas phase fraction that steams from cat head gets into rectifying tower return tank V-101 after rectifying tower top condensing surface E-102 cooling; Part condensed fluid is through rectifying tower reflux pump P-102; Deliver to rectifying tower T-101 top as refluxing, another part is as product 1, and the 4-butyleneglycol is sent to the tank field product stock.The trim the top of column amount is accomplished through the FIC-102 variable valve, and the cat head extraction is regulated by liquid level LIC-102 and realized.
Material part at the bottom of the rectifying tower T-101 tower is sent into tank field heavy-oil reservoir tank stores after heat exchange is carried out in the charging that extractor pump P-101 at the bottom of the rectifying tower delivers to feed preheater E-103 and this tower; Another part turns back in the tower still of this tower after recycle pump P-103 delivers to rectifying tower reboiler E-101 and water vapor heat exchange at the bottom of by rectifying tower.Tower still temperature is realized by the flow of TIC-102 adjusting rectifying tower reboiler E-101 water vapour.
This tower is a negative-pressure operation, and tower top pressure is realized through the flow that PIC-101 regulates nitrogen by rectifying tower vacuum pump P-104.
1, the parameter list of the rectifying tower of this embodiment is seen table 1:
The parameter list of table 1 rectifying tower
。
2, product 1, and the recovery of 4-butyleneglycol is 90%, and the index of other products is seen table 2:
The tabulation of table 2 rectifying product index
3, Economic and Efficiency Analysis is after the project implementation, owing to can handle 1 every year; 1600 tons of 4-butyleneglycol raffinates (in the C raffinate 1,4-butyleneglycol content calculates by 60%), the recovery is calculated (design 91.49%) by 80%; Year can increase by 1, and 768 tons of 4-butyleneglycol products are by 12000 yuan of accounting of the market average price first half of the year in 2010; Enterprise will increase about 7,870,000 yuan of sales revenue, about 2,000,000 yuan of profit after taxs.
What should explain at last is: the above is merely the preferred embodiment of the utility model; Be not limited to the utility model; Although the utility model has been carried out detailed explanation with reference to previous embodiment; For a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1.1; 4-butyleneglycol raffinate recovery system; It is characterized in that: comprise rectifying tower (T-101), establish overhead gas outlet (a), phegma import (b), opening for feed (c), reboiler on the said rectifying tower (T-101) and return at the bottom of tower mouth (d), the tower discharge port (e) and remove reboiler mouth (f); Said overhead gas outlet (a) is connected with rectifying tower overhead condenser (E-102) import; Rectifying tower overhead condenser (E-102) outlet is connected with rectifying tower return tank (V-101) import; Respectively with 1,4-butyleneglycol storage tank is connected with phegma import (b) through pump in rectifying tower return tank (V-101) outlet; Opening for feed (c) connects 1,4-butyleneglycol raffinate storage tank; Go reboiler mouth (f) to be connected with rectifying tower still reboiler (E-101) import, rectifying tower still reboiler (E-101) outlet is returned tower mouth (d) with reboiler and is connected; Discharge port at the bottom of the tower (e) connects the heavy oil storage tank.
2. according to claim 11; 4-butyleneglycol raffinate recovery system; It is characterized in that: also comprise a feed preheater (E-103); It is positioned at and connects 1, the pipeline of the opening for feed (c) of 4-butyleneglycol raffinate storage tank and rectifying tower (T-101), be connected tower at the bottom of the infall of pipeline of discharge port (e) and heavy oil storage tank; Discharging and 1 at the bottom of the tower, 4-butyleneglycol raffinate carries out heat exchange in feed preheater (E-103).
3. according to claim 11,4-butyleneglycol raffinate recovery system is characterized in that: also comprise a rectifying tower vacuum buffer tank (V-102), it is connected with rectifying tower vacuum pump (P-104) with rectifying tower return tank (V-101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203583761U CN202214307U (en) | 2011-09-21 | 2011-09-21 | 1,4-butanediol residual liquid recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203583761U CN202214307U (en) | 2011-09-21 | 2011-09-21 | 1,4-butanediol residual liquid recycling system |
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| Publication Number | Publication Date |
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| CN202214307U true CN202214307U (en) | 2012-05-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011203583761U Expired - Fee Related CN202214307U (en) | 2011-09-21 | 2011-09-21 | 1,4-butanediol residual liquid recycling system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659515A (en) * | 2012-05-15 | 2012-09-12 | 湘潭大学 | Method for recovering 1,4-butanediol from waste liquor generated in production of 1,4-butanediol through Reppe method |
| CN103274898A (en) * | 2013-06-24 | 2013-09-04 | 重庆大学 | Process for recovering distillation waste liquid generated by producing 1,4-butanediol |
| CN107473937A (en) * | 2017-07-26 | 2017-12-15 | 江苏迈克化工机械有限公司 | A kind of method of withdrawal liquid chain fatty glycol |
| CN117065379A (en) * | 2023-10-17 | 2023-11-17 | 福建聚创新材料科技有限公司 | Separation device for purifying BDO from BDO waste liquid |
-
2011
- 2011-09-21 CN CN2011203583761U patent/CN202214307U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659515A (en) * | 2012-05-15 | 2012-09-12 | 湘潭大学 | Method for recovering 1,4-butanediol from waste liquor generated in production of 1,4-butanediol through Reppe method |
| CN102659515B (en) * | 2012-05-15 | 2014-05-14 | 湘潭大学 | Method for recovering 1,4-butanediol from waste liquor generated in production of 1,4-butanediol through Reppe method |
| CN103274898A (en) * | 2013-06-24 | 2013-09-04 | 重庆大学 | Process for recovering distillation waste liquid generated by producing 1,4-butanediol |
| CN107473937A (en) * | 2017-07-26 | 2017-12-15 | 江苏迈克化工机械有限公司 | A kind of method of withdrawal liquid chain fatty glycol |
| CN117065379A (en) * | 2023-10-17 | 2023-11-17 | 福建聚创新材料科技有限公司 | Separation device for purifying BDO from BDO waste liquid |
| CN117065379B (en) * | 2023-10-17 | 2023-12-19 | 福建聚创新材料科技有限公司 | Separation device for purifying BDO from BDO waste liquid |
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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: 20120509 Termination date: 20200921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |