CN207483642U - A kind of novel carbinol extraction and recovery system - Google Patents
A kind of novel carbinol extraction and recovery system Download PDFInfo
- Publication number
- CN207483642U CN207483642U CN201721522149.1U CN201721522149U CN207483642U CN 207483642 U CN207483642 U CN 207483642U CN 201721522149 U CN201721522149 U CN 201721522149U CN 207483642 U CN207483642 U CN 207483642U
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- Prior art keywords
- methanol
- extraction
- water
- oil phase
- mixing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model provides a kind of novel carbinol extraction and recovery system, including feed pipe, methanol extraction device, feed heater, methanol distillation column, air cooler, return tank, reflux pump and bottom of towe circulating pump, methanol extraction device includes mixing column, cyclone separator and without back-mixing expansion chamber.This system due to can ensure that methanol is substantially dissolved in water, does not need to carry out cycling extraction, improves efficiency, reduce the internal circulating load of extraction water, reduce the energy consumption of the components such as circulating pump, reboiler, is conducive to energy saving, reduces cost.
Description
Technical field
The utility model is related to field of chemical equipment, especially a kind of novel carbinol extraction and recovery system.
Background technology
Petrochemical industry refinery MTBE devices are mainly made of etherification reaction-catalytic distillation part and Methanol Recovery part.It is former
Expect the industrial level-one methanol for the produced mixing C4 components of gas fractionation unit and outsourcing, major product is purity >=98%
MTBE, as the blend component of production high-grade gasoline product, C4 can be as the raw material of methyl ethyl ketone plant after ether.MTBE makees
For high-knock rating gasoline blend component, the utilization of cracking gas is improved, is to save petroleum resources and improve the effective of resource utilization
Method.
As shown in Figure 1：The material that MTBE destilling towers come enters methanol extraction tower, 33 DEG C of methanol extraction tower top temperature, pressure
0.83MPa, 44.5 DEG C of column bottom temperature, C4 is sent into tank field after condensation after tower top goes out ether；Water of the bottom of towe containing methanol passes through methanol
Enter methanol distillation column after the feed heater of recovery tower.88 DEG C, pressure 0.115MPa of Methanol Recovery tower top temperature, column bottom temperature
133 DEG C, tower top methanol gas enters return tank after air-cooled condensation, and a part is back to Methanol Recovery column overhead with control tower
Temperature is pushed up, another part methanol loop to Reactor inlet is reacted again as raw material, and the fixed gas that return tank generates is put into
Torch；A water part for Methanol Recovery bottom of towe is arranged as outside extraction water, and another part is pressurizeed by column bottoms pump, then through cooler
After be back to methanol extraction tower as extractant recycle；Methanol Recovery bottom of towe has bottom reboiler, is made with 1.0MPa steam
For heat source.
Fully to recycle the methanol in MTBE products, a large amount of extraction water is needed to be extracted repeatedly in methanol extraction tower,
It is less efficient, and this part water is brought into methanol distillation column again, is then again returned to extraction tower and is recycled.Methanol extraction
Bottom of towe controls column bottom temperature using reboiler, and the extraction water largely recycled increases the thermic load of Methanol Recovery bottom of towe reboiler,
Increase the energy consumption of device；Methanol extraction tower is operated using tower tray, also increases equipment and operating cost.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of novel carbinol extraction and recovery systems, improve extraction effect
Rate reduces energy consumption.
Technical solution is used by the utility model solves its technical problem：A kind of novel carbinol extraction and recovery system,
Including feed pipe, methanol extraction device, feed heater, methanol distillation column, air cooler, return tank, reflux pump and bottom of towe circulating pump,
The feed pipe is connected with methanol extraction device, and methanol extraction device is connected with drainage conduit, and the methanol extraction device adds with charging
Hot device is connected, and the feed heater is connected with methanol distillation column, and the bottom of the methanol distillation column is provided with reboiler, extraction
The outer comb of water and extraction water-circulating pipe, the bottom of towe circulating pump are set on extraction water-circulating pipe, the top of the methanol distillation column
Portion is connected with air cooler, and the air cooler is connected with return tank, and exhaust pipe is provided at the top of return tank, and the return tank passes through
Return duct is connected with the top of methanol distillation column, and the reflux pump is set on return duct, and return duct is connected with conveying pipeline；
The methanol extraction device includes mixing column, cyclone separator and without back-mixing expansion chamber, and the mixing column is provided with the first oil
Phase entrance, the first water phase entrance and mixed export, the first oil phase entrance are connected with feed pipe, the first water phase entrance and extraction
Water-circulating pipe is connected, and the cyclone separator is provided with mixing import, the outlet of the first oil phase and the outlet of the first water phase, the mixed export
It is connected with mixing import, the no back-mixing expansion chamber is provided with the first sedimentation chamber and the second sedimentation chamber, and first sedimentation chamber is set
The second oil phase entrance is equipped with, the second sedimentation chamber is provided with the second water phase entrance, and first sedimentation chamber and the second sedimentation chamber are all provided with
The outlet of the second oil phase and the outlet of the second water phase are equipped with, the first oil phase outlet is connected with the second oil phase entrance, and the first water phase goes out
Mouth is connected with the second water phase entrance, and the second oil phase outlet is connected with drainage conduit, the second water phase outlet and charging heating
Device is connected.
Further, the feed heater is heat exchanger, and the extraction water-circulating pipe passes through heat exchanger.
The beneficial effects of the utility model are：By increasing cyclone separator and without back-mixing expansion chamber, in cyclone separator, mixture
Material is gradually accelerated to high speed rotation, is sufficiently mixed material first, and methanol is completely dissolved in water, substantially increases extraction effect
Then rate generates different centrifugal force using the density of different material difference, Jiang Shui and oil separate, and You Heshui is entered back into
No back-mixing expansion chamber carries out secondary separation respectively, ensures that separation is thorough.This system, due to that can ensure that methanol is substantially dissolved in water
In, it does not need to carry out cycling extraction, improves efficiency, reduce the internal circulating load of extraction water, reduce the portions such as circulating pump, reboiler
The energy consumption of part, is conducive to energy saving, reduces cost.
Description of the drawings
Fig. 1 is the schematic diagram of the prior art；
Fig. 2 is the overall schematic of the utility model；
Fig. 3 is the detailed mechanism schematic diagram of part A in Fig. 2.
Specific embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
As shown in Figures 2 and 3, a kind of novel carbinol extraction and recovery system of the utility model, including feed pipe 1, methanol
Extractor, feed heater 2, methanol distillation column 3, air cooler 4, return tank 5, reflux pump 6 and bottom of towe circulating pump 7, the charging
Pipe 1 is connected with methanol extraction device, and methanol extraction device is connected with drainage conduit 8, the methanol extraction device and 2 phase of feed heater
Even, the feed heater 2 is connected with methanol distillation column 3, and the bottom of the methanol distillation column 3 is provided with reboiler 14, extraction
The outer comb 9 of water and extraction water-circulating pipe 10, the bottom of towe circulating pump 7 are set on extraction water-circulating pipe 10, the Methanol Recovery
The top of tower 3 is connected with air cooler 4, and the air cooler 4 is connected with return tank 5, and the top of return tank 5 is provided with exhaust pipe 13,
The return tank 5 is connected by return duct 11 with the top of methanol distillation column 3, and the reflux pump 6 is set on return duct 11, and
Return duct 11 is connected with conveying pipeline 12；
The methanol extraction device includes mixing column 15, cyclone separator 16 and without back-mixing expansion chamber 17, and the mixing column 15 is set
There are the first oil phase entrance, the first water phase entrance and mixed export, the first oil phase entrance is connected with feed pipe 1, the first water phase
Entrance is connected with extraction water-circulating pipe 10, and the cyclone separator 16 is provided with mixing import, the outlet of the first oil phase and the first water phase and goes out
Mouthful, the mixed export is connected with mixing import, and the no back-mixing expansion chamber 17 is provided with the first sedimentation chamber 18 and the second sedimentation
Chamber 19, first sedimentation chamber 18 are provided with the second oil phase entrance, and the second sedimentation chamber 19 is provided with the second water phase entrance, and described
One sedimentation chamber 18 and the second sedimentation chamber 19 are both provided with the outlet of the second oil phase and the outlet of the second water phase, first oil phase outlet with
Second oil phase entrance is connected, and the outlet of the first water phase is connected with the second water phase entrance, the second oil phase outlet and 8 phase of drainage conduit
Even, the second water phase outlet is connected with feed heater 2.Cyclone separator 16 is mainly to be produced using the density difference of various substances
Raw different centrifugal force, separates under the influence of centrifugal force, it can be achieved that water-oil separating, additionally it is possible to grease is stirred,
Ensure that methanol fully dissolves, cyclone separator 16 uses the prior art.
The course of work of this system is：The material that MTBE destilling towers come enters mixing column 15 by feed pipe 1, extracts simultaneously
Water enters mixing column 15, and extraction water enters cyclone separator 16 after being mixed with material, under the stirring action of cyclone separator 16, in material
Methanol is completely dissolved in extraction water, and then oiliness material and extraction water detach under the influence of centrifugal force again, oiliness material into
Enter the first sedimentation chamber 18 of no back-mixing expansion chamber 17, extraction water enters the second sedimentation chamber 19, due to density contrast existing for grease, warp
It is layered after crossing standing, a small amount of water in oiliness material is discharged from oiliness material, and a small amount of oiliness material in extraction water is from extraction
It is discharged in water intaking, oiliness material then is passed through drainage conduit 8 recycles, and extraction water enters Methanol Recovery by feed heater 2
Tower 3, extraction water is after the heating of reboiler 14, the methanol gasifying in water, and passes through pipeline and enter air cooler 4, in air cooler 4
Again enter return tank 5 after liquefying, the methanol of part enters the top control Methanol Recovery of methanol distillation column 3 by return duct 11
Temperature in tower 3, another part are recycled by conveying pipeline 12, cannot liquefied gas feeding torch burning heel row in return tank 5
It is empty.The partial extraction water of 3 bottom of methanol distillation column reenters mixing column 15 by extracting water-circulating pipe 10 and is recycled,
Another part comb 9 outside extraction water is discharged.
The feed heater 2 is heat exchanger, and the extraction water-circulating pipe 10 passes through heat exchanger.It extracts in water-circulating pipe 10
Extraction water there is a large amount of heat, the extraction water for carrying methanol is heated by way of heat exchange, advantageously reduces energy consumption.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (2)
1. a kind of novel carbinol extraction and recovery system is returned including feed pipe (1), methanol extraction device, feed heater (2), methanol
Receive tower (3), air cooler (4), return tank (5), reflux pump (6) and bottom of towe circulating pump (7), the feed pipe (1) and methanol extraction
Device is connected, and methanol extraction device is connected with drainage conduit (8), and the methanol extraction device is connected with feed heater (2), it is described into
Material heater (2) is connected with methanol distillation column (3), and the bottom of the methanol distillation column (3) is provided with reboiler (14), extraction water
Outer comb (9) and extraction water-circulating pipe (10), the bottom of towe circulating pump (7) are set on extraction water-circulating pipe (10), the first
The top of alcohol recovery tower (3) is connected with air cooler (4), and the air cooler (4) is connected with return tank (5), the top of return tank (5)
Exhaust pipe (13) is provided with, the return tank (5) is connected by return duct (11) with the top of methanol distillation column (3), described time
Stream pump (6) is set on return duct (11), and return duct (11) is connected with conveying pipeline (12)；
It is characterized in that：The methanol extraction device includes mixing column (15), cyclone separator (16) and without back-mixing expansion chamber (17), described
Mixing column (15) is provided with the first oil phase entrance, the first water phase entrance and mixed export, the first oil phase entrance and feed pipe
(1) it is connected, the first water phase entrance is connected with extraction water-circulating pipe (10), and the cyclone separator (16) is provided with mixing import, first
Oil phase exports and the outlet of the first water phase, the mixed export are connected with mixing import, and the no back-mixing expansion chamber (17) is provided with
First sedimentation chamber (18) and the second sedimentation chamber (19), first sedimentation chamber (18) are provided with the second oil phase entrance, the second sedimentation
Chamber (19) is provided with the second water phase entrance, and first sedimentation chamber (18) and the second sedimentation chamber (19) are both provided with the second oil phase and go out
Mouth and the outlet of the second water phase, the first oil phase outlet are connected with the second oil phase entrance, and the outlet of the first water phase enters with the second water phase
Mouth is connected, and the second oil phase outlet is connected with drainage conduit (8), and the second water phase outlet is connected with feed heater (2).
2. a kind of novel carbinol extraction and recovery system as described in claim 1, it is characterised in that：The feed heater (2)
For heat exchanger, the extraction water-circulating pipe (10) is by heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721522149.1U CN207483642U (en) | 2017-11-15 | 2017-11-15 | A kind of novel carbinol extraction and recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721522149.1U CN207483642U (en) | 2017-11-15 | 2017-11-15 | A kind of novel carbinol extraction and recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207483642U true CN207483642U (en) | 2018-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721522149.1U Expired - Fee Related CN207483642U (en) | 2017-11-15 | 2017-11-15 | A kind of novel carbinol extraction and recovery system |
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| CN (1) | CN207483642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516622A (en) * | 2020-12-11 | 2021-03-19 | 安徽金禾实业股份有限公司 | Extraction and impurity removal device and method for recovering methanol through chlorination in maltol production |
-
2017
- 2017-11-15 CN CN201721522149.1U patent/CN207483642U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112516622A (en) * | 2020-12-11 | 2021-03-19 | 安徽金禾实业股份有限公司 | Extraction and impurity removal device and method for recovering methanol through chlorination in maltol production |
| CN114130063A (en) * | 2020-12-11 | 2022-03-04 | 安徽金禾实业股份有限公司 | Extraction and impurity removal device and method for recovering methanol through chlorination in maltol production |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180612 Termination date: 20211115 |