CN201701924U - Efficient energy-saving esterification tower device for synthesizing ethyl acetate by esterification method - Google Patents
Efficient energy-saving esterification tower device for synthesizing ethyl acetate by esterification method Download PDFInfo
- Publication number
- CN201701924U CN201701924U CN2010202088993U CN201020208899U CN201701924U CN 201701924 U CN201701924 U CN 201701924U CN 2010202088993 U CN2010202088993 U CN 2010202088993U CN 201020208899 U CN201020208899 U CN 201020208899U CN 201701924 U CN201701924 U CN 201701924U
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- Prior art keywords
- esterification
- ethyl acetate
- utility
- model
- saving
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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
Abstract
The utility model relates to an efficient energy-saving esterification tower device for synthesizing ethyl acetate by an esterification method, which belongs to a carboxylic ester preparation device, in particular to an ethyl acetate preparation device. The utility model is characterized in that the efficient energy-saving esterification tower device at least comprises a middle water separation tower section (2) which is connected with a phase separator A (4) and an outlet of a circulation pump (10) through a pipeline and a pipe fitting. The utility model provides the efficient energy-saving esterification tower device for synthesizing the ethyl acetate by the esterification method, which has the advantages of small back flow, low heat energy consumption and high generation capability. The utility model solves the technical problems of high energy consumption, low equipment utilization rate and low production capability of the esterification device in the prior art. The acid quantity in outlet water in the esterification tower is lower than or equal to 0.2 percent, the consumption of acetic acid raw materials can not be increased, the steam consumption can be reduced by 30 percent, and the production capability of the esterification kettle can be improved by 40 percent. The utility model has the advantages of simple structure, easy implementation and low equipment modification cost.
Description
Technical field
The utility model is the energy-efficient esterification column device of a kind of method for synthetizing ethyl acetate by esterification, belongs to the preparation facilities of carboxylate.Be particularly related to the preparation facilities of ethyl acetate.
Background technology
Produce in the ethyl acetate technology in esterification process, acetate and ethanol react the ethyl acetate that generates and carry the water and the part material ethanol of generation in esterifying kettle, be raised to the esterification cat head with ternary azeotrope in form, after condensation, mixed liquor is through the phase-splitter layering, upper strata ethyl acetate overflow enters thick ester groove, and lower layer of water is sent into sewage recovering system.Since the moisture less than 9% during ethyl acetate, ethanol, water ternary azeotrope are formed, and in the ethyl acetate and water of the chemistry amount that acetate and ethanol synthesis produced, the content of moisture is about 17%.This chemical reaction process forces the thick ester of part repeatedly to be back to esterifying kettle, take the task of esterification system out of to finish the water that esterification is generated, and reflux ratio is bigger.Cause product to be heated repeatedly, system's thermal energy consumption increases, and the generative capacity of esterification equipment is difficult to improve.
In the prior art, the ethyl acetate of the generation in the course of reaction and water and part material ethanol all steam from the esterification cat head, enter phase-splitter and separate after condensation, a large amount of energy consumptions of the needs in the production process, and having restricted utilization rate of equipment and installations, production capacity is lower.
The utility model content
The purpose of this utility model is to avoid above-mentioned weak point of the prior art, and provides the method for synthetizing ethyl acetate by esterification that a kind of reflux ratio is less, thermal energy consumption is low, generative capacity is high energy-efficient esterification column device
The purpose of this utility model can reach by following measure:
The energy-efficient esterification column device of method for synthetizing ethyl acetate by esterification of the present utility model is characterized in that comprising at least an intermediate section water tower joint 2 that is connected with phase-splitter A4 and circulating pump 10 outlets by pipeline and pipe fitting.
The design concept of intermediate section water tower joint 2, the water that esterification is generated in time separates, and shift out reaction system, avoided it in esterification column, to continue the rising consumption of heat energy, while is owing to product shifting out, quicken the reaction rate of esterification, improved conversion of raw material, improved the generative capacity of esterification device.Thereby finished task of the present utility model.
The purpose of this utility model can also reach by following measure:
The energy-efficient esterification column device of method for synthetizing ethyl acetate by esterification of the present utility model, it is characterized in that described among between the collecting tank of valve tower joint 2 are circular upper shed cell bodies of encircling a city by esterification column wall and circular arc base plate and the cylindric side plate of hollow.
Be the inventor disclosed one simple in structure, be easy to make the optimized technical scheme of manufacturing cost.
The energy-efficient esterification column device of method for synthetizing ethyl acetate by esterification of the present utility model, it is characterized in that described among between valve tower joint 2 1～3 joint is arranged.
Along with the increase of valve tower joint, effect of the present utility model can be more remarkable.
The disclosed technical scheme of the energy-efficient esterification column device of method for synthetizing ethyl acetate by esterification of the present utility model has following good effect compared to existing technology:
1. provide the method for synthetizing ethyl acetate by esterification that a kind of reflux ratio is less, thermal energy consumption is low, generative capacity is high energy-efficient esterification column device.
2. in the esterification Tata in the recovered water, acid content≤0.2% can not increase the consumption of raw acetic acid.
3. reduce steam consumption 30%, improve esterifying kettle production capacity 40%.
4. simple structure, scrap build cost easy to implement is low.
Description of drawings
Fig. 1 is the energy-efficient esterification column apparatus structure of a method for synthetizing ethyl acetate by esterification of the present utility model schematic diagram
Among the figure
The 1-esterification column
2-valve tower joint
The 3-collecting tank
4-phase-splitter A
The 5-esterifying kettle
The 6-reboiler
7-condenser A
8-condenser B
9-phase-splitter B
The 10-circulating pump.
The specific embodiment
The energy-efficient esterification column device of method for synthetizing ethyl acetate by esterification of the present utility model is characterized in that comprising at least an intermediate section water tower joint 2 that is connected with phase-splitter A4 and circulating pump 10 outlets by pipeline and pipe fitting.Wherein, the collecting tank of valve tower joint 2 is circular upper shed cell bodies of being encircled a city by esterification column wall and circular arc base plate and the cylindric side plate of hollow between among described.Valve tower joint 2 has 2 joints between among described.
Claims (3)
1. the energy-efficient esterification column device of method for synthetizing ethyl acetate by esterification is characterized in that comprising at least an intermediate section water tower joint (2) that is connected with phase-splitter A (4) and circulating pump (10) outlet by pipeline and pipe fitting.
2. according to the energy-efficient esterification column device of the method for synthetizing ethyl acetate by esterification of claim 1, it is characterized in that described among between the collecting tank of valve tower joint (2) be a circular upper shed cell body of encircling a city by esterification column wall and circular arc base plate and the cylindric side plate of hollow.
3. according to the energy-efficient esterification column device of the method for synthetizing ethyl acetate by esterification of claim 1, it is characterized in that described among between valve tower joint (2) 1～3 joint is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202088993U CN201701924U (en) | 2010-05-25 | 2010-05-25 | Efficient energy-saving esterification tower device for synthesizing ethyl acetate by esterification method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202088993U CN201701924U (en) | 2010-05-25 | 2010-05-25 | Efficient energy-saving esterification tower device for synthesizing ethyl acetate by esterification method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201701924U true CN201701924U (en) | 2011-01-12 |
Family
ID=43439070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202088993U Expired - Lifetime CN201701924U (en) | 2010-05-25 | 2010-05-25 | Efficient energy-saving esterification tower device for synthesizing ethyl acetate by esterification method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201701924U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402717A (en) * | 2014-10-31 | 2015-03-11 | 江苏索普（集团）有限公司 | Technology and device for water diversion in middle of esterification column in ethyl acetate production |
| CN110407698A (en) * | 2019-07-20 | 2019-11-05 | 江门谦信化工发展有限公司 | A kind of ethyl acetate mentions the reaction process of production consumption reduction |
| CN111604025A (en) * | 2020-05-27 | 2020-09-01 | 广西新天德能源有限公司 | Esterification tower partial water device in ethyl acetate production process and process thereof |
-
2010
- 2010-05-25 CN CN2010202088993U patent/CN201701924U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104402717A (en) * | 2014-10-31 | 2015-03-11 | 江苏索普（集团）有限公司 | Technology and device for water diversion in middle of esterification column in ethyl acetate production |
| CN110407698A (en) * | 2019-07-20 | 2019-11-05 | 江门谦信化工发展有限公司 | A kind of ethyl acetate mentions the reaction process of production consumption reduction |
| CN111604025A (en) * | 2020-05-27 | 2020-09-01 | 广西新天德能源有限公司 | Esterification tower partial water device in ethyl acetate production process and process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |
|
| CX01 | Expiry of patent term |