CN220176822U - Novel methyl acrylate production device - Google Patents
Novel methyl acrylate production device Download PDFInfo
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- CN220176822U CN220176822U CN202123117313.XU CN202123117313U CN220176822U CN 220176822 U CN220176822 U CN 220176822U CN 202123117313 U CN202123117313 U CN 202123117313U CN 220176822 U CN220176822 U CN 220176822U
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- Prior art keywords
- esterification
- discharge gate
- static mixer
- methyl acrylate
- rectifying
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- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000005886 esterification reaction Methods 0.000 claims abstract description 55
- 230000032050 esterification Effects 0.000 claims abstract description 39
- 230000003068 static effect Effects 0.000 claims abstract description 34
- 238000005406 washing Methods 0.000 claims description 34
- 239000012071 phase Substances 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000004581 coalescence Methods 0.000 claims description 13
- 239000011534 wash buffer Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 238000010025 steaming Methods 0.000 claims description 2
- 239000008346 aqueous phase Substances 0.000 claims 1
- 238000004821 distillation Methods 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 13
- 239000000047 product Substances 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- -1 hydroxypropyl ester Chemical class 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000013067 intermediate product Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000003522 acrylic cement Substances 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 208000012839 conversion disease Diseases 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 125000005610 enamide group Chemical group 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model discloses a novel methyl acrylate production device, which comprises: the utility model relates to an esterification reaction kettle, an esterification rectifying tower, a rectifying kettle and a rectifying tower, wherein one end of a discharge hole of the esterification reaction kettle is provided with the esterification rectifying tower, one end of a discharge hole of the esterification rectifying tower is provided with an esterification primary condenser, one end of a discharge hole of the esterification primary condenser is provided with a rough distillation MA receiving tank, one end of a discharge hole of the rough distillation MA receiving tank is provided with a static mixer I, one end of a discharge hole of the static mixer I is provided with a static mixer II.
Description
Technical Field
The utility model relates to the technical field of methyl acrylate production, in particular to a novel methyl acrylate production device.
Background
Methyl Acrylate (abbreviated as MA) is one of important fine chemical raw materials, is mainly used as an organic synthesis intermediate and a synthetic high-molecular monomer, can be exchanged, copolymerized, grafted and the like with various hard monomers (such as Methyl methacrylate, styrene, acrylonitrile, vinyl acetate and the like) and functional monomers (such as hydroxyethyl (meth) Acrylate, hydroxypropyl ester, glycidyl ester, (meth) enamide) and derivatives thereof and the like, and is widely used as a plurality of aspects of coating, adhesive, acrylic fiber modification, plastic modification, fiber and textile processing, leather processing, papermaking, acrylic rubber and the like.
Most of methyl acrylate is prepared by esterification reaction of acrylic acid and alcohol, and because the reaction of acrylic acid ester and alcohol is reversible reaction, the reaction conversion rate is not high due to the limitation of equilibrium constant, and an equilibrium conversion rate exists in the reaction process. For example, US006025520a discloses a method for preparing (meth) acrylic acid ester, which makes (meth) acrylic acid react with C1-C3 alcohol under the action of strong acid ion exchange resin, the reaction is performed in a vacuum state, the reaction liquid is separated into vapor and liquid phases, and the vapor and liquid phases enter a subsequent rectification system to separate and purify respectively, so as to obtain (meth) acrylic acid ester products. Although this method can produce methyl acrylate, the preparation method is simple, the method takes new materials as raw materials to produce acrylic ester, the method does not mention how to use depolymerized methyl acrylate as raw materials to prepare methyl acrylate, in fact, the methyl acrylate produced by the reaction is depolymerized and reused for producing the product, which is beneficial to further purifying the methyl acrylate and recycling the recovered methyl acrylate.
In the prior art, the technology of depolymerizing methyl acrylate and reusing the depolymerized product in preparing methyl acrylate is less, and the main reason is that the components in the depolymerized methyl acrylate are complex, and besides acrylic acid and methanol substances, more salts and other organic substances exist, and after the depolymerized methyl acrylate is introduced into an esterification reaction device, the substances generated by the reaction are complex, and besides the operations of multiple distillation, rectification and the like, the problem of waste emission is considered. Patent application number CN201810396786.1 discloses a method for recovering methyl acrylate waste oil, which relates to a production and recovery process of methyl acrylate, namely, using depolymerized acrylic ester as raw material to make esterification reaction with substances such as methanol and catalyst so as to prepare and separate methyl acrylate. Although the method discloses a methyl acrylate preparation process, the method does not relate to a production device and waste gas recovery, harmful gas generated in the production process is difficult to treat, and safety and environmental protection are not guaranteed.
Disclosure of Invention
The utility model aims to provide a novel methyl acrylate production device, which solves the problems that the technology for preparing methyl acrylate by using depolymerized methyl acrylate as a raw material and the technology for producing methyl acrylate by using depolymerized methyl acrylate as a raw material in the prior art is complex, harmful gas cannot be treated and the like.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a novel methyl acrylate production device, comprising: esterification reaction kettle, esterification rectifying column, rectifying still and rectifying column, esterification reaction kettle discharge gate one end is equipped with esterification rectifying column, esterification rectifying column discharge gate one end is equipped with esterification one-level condenser, esterification one-level condenser discharge gate one end is equipped with thick distillation MA accepting groove, thick distillation MA accepting groove discharge gate one end is equipped with static mixer I, static mixer I discharge gate one end is equipped with static mixer II, static mixer II discharge gate one end is equipped with static mixer III, static mixer III discharge gate one end is equipped with the washing cauldron, washing cauldron discharge gate one end is equipped with washing coalescence phase separator, washing coalescence phase separator discharge gate one end is equipped with water phase transfer pot and washing MA transfer pot, washing MA transfer pot discharge gate one end is equipped with the rectifying still, rectifying column discharge gate one end is equipped with the rectifying column, rectifying column discharge gate one end is equipped with the rectifying condenser one-level condenser, rectifying column one-level condenser discharge gate one end is equipped with the product cooler, product cooler discharge gate one end is equipped with the rectifying accepting groove.
Further, one end of the esterification primary condenser is provided with a tail gas catcher, an esterification coalescence phase separator is arranged between the esterification primary condenser and the rough distillation MA receiving tank, and one end of a discharge port of the tail gas catcher is connected with one end of the esterification coalescence phase separator.
Further, a washing buffer tank is arranged between the static mixer II and the static mixer III.
Further, one end of the top of the water washing kettle is provided with an emptying catcher.
Further, a vacuum catcher is arranged between the rectifying first-stage condenser and the product cooler.
Further, one side of the upper half part of the emptying catcher is provided with a gas phase pipe.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, through the esterification reaction kettle, the esterification rectifying tower and the rectifying receiving tank, the rectification dehydration is carried out while the esterification reaction of methyl acrylate is carried out, so that the reaction is carried out in the forward direction, the reaction time is reduced, the conversion rate is improved, and the static mixer, the water washing buffer tank and the water washing kettle are combined to ensure that the water washing device runs continuously and efficiently. The device has the advantages of high automation degree, low operation cost, simple process, safety, environmental protection and the like.
Drawings
FIG. 1 is a flow chart of the overall apparatus of the present utility model.
In the figure: 1. an esterification reaction kettle; 2. an esterification rectifying tower; 3. an esterification primary condenser; 4. an exhaust gas trap; 5. a rough steaming MA receiving tank; 6. an esterifying coalescing phase separator; 7. a static mixer I; 8. a static mixer II; 9. a static mixer III; 10. washing the buffer tank; 11. washing the kettle; 12. emptying the catcher; 13. washing the coalesced phase separator with water; 14. a water phase transfer tank; 15. washing the MA transfer pot with water; 16. a rectifying still; 17. a rectifying tower; 18. rectifying a first-stage condenser; 19. a vacuum catcher; 20. a product cooler; 21. a rectification receiving tank.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, the present utility model provides a technical solution: a novel methyl acrylate production device, comprising: esterification reaction kettle 1, esterification rectifying column 2, rectifying still 16 and rectifying column 17, esterification reaction kettle 1 discharge gate one end has esterification rectifying column 2 through the pipe connection, esterification rectifying column 2 discharge gate one end has esterification primary condenser 3 through the pipe connection, esterification primary condenser 3 discharge gate one end has crude distillation MA accepting groove 5 through the pipe connection, crude distillation MA accepting groove 5 discharge gate one end has static mixer I7 through the pipe connection, static mixer I7 discharge gate one end has static mixer II 8 through the pipe connection, static mixer II 8 discharge gate one end has static mixer III 9 through the pipe connection, static mixer III 9 discharge gate one end has washing kettle 11 through the pipe connection, washing kettle 11 discharge gate one end has washing coalescence ware 13 through the pipe connection, washing coalescence phase separator 13 discharge gate one end has in the water phase transfer pot 14 and washing MA transfer pot 15 through the pipe connection, rectifying still 16 discharge gate one end has rectifying column 17 through the pipe connection, rectifying column 17 discharge gate one end has condensation tower 18 through the pipe connection one end to have rectifying condenser 18 through the cooling one end of product of the first order condenser 20 through the pipe connection.
One end of the esterification primary condenser 3 is connected with a tail gas catcher 4 through a pipeline, an esterification coalescence phase separator 6 is connected between the esterification primary condenser 3 and the rough distillation MA receiving tank 5 through a pipeline, one end of a discharge hole of the tail gas catcher 4 is connected with one end of the esterification coalescence phase separator 6, and a washing buffer tank 10 is connected between a static mixer II 8 and a static mixer III 9 through a pipeline.
One end of the top of the water washing kettle 11 is connected with a vent catcher 12 through a pipeline, a vacuum catcher 19 is connected between a rectifying primary condenser 18 and a product cooler 20 through a pipeline, and a gas phase pipe is arranged on one side of the upper half part of the vent catcher 12.
Working principle: when methyl acrylate is produced, methanol, acrylic acid and depolymerized MA are used as raw materials, raw materials and auxiliary materials enter an esterification reaction kettle 1, esterification reaction is carried out under certain process conditions, gas phase passes through an esterification rectifying tower 2, enters an esterification primary condenser 3 for condensation, condensate passes through an esterification coalescence phase separator 6 for extracting water phase, so as to obtain intermediate product crude distillation MA, kettle residue is recycled, tail gas enters a tail gas disposal system through a tail gas catcher 4, the esterification obtained crude product enters a washing device such as a static mixer I7, a static mixer II 8, a static mixer III 9, a washing coalescence phase separator and the like for washing, unreacted alcohol is removed, the intermediate product washing MA is obtained, the washing device is continuously produced, the washing MA enters a refining device, refining production is carried out under a rectifying kettle 16 and a rectifying tower 17, and finished product MA is obtained for kettle residue recycling.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A novel methyl acrylate production device, comprising: esterification reaction cauldron (1), esterification rectifying column (2), rectifying still (16) and rectifying column (17), its characterized in that: esterification reaction cauldron (1) discharge gate one end is equipped with esterification rectifying tower (2), esterification rectifying tower (2) discharge gate one end is equipped with esterification one-level condenser (3), esterification one-level condenser (3) discharge gate one end is equipped with thick MA accepting groove (5), thick MA accepting groove (5) discharge gate one end is equipped with static mixer I (7), static mixer I (7) discharge gate one end is equipped with static mixer II (8), static mixer II (8) discharge gate one end is equipped with static mixer III (9), static mixer III (9) discharge gate one end is equipped with washing cauldron (11), washing cauldron (11) discharge gate one end is equipped with washing phase separator (13), washing coalescence phase separator (13) discharge gate one end is equipped with aqueous phase transfer pot (14) and washing MA transfer pot (15), washing transfer pot (15) one end is equipped with rectifying still (16), rectifying still (16) discharge gate one end is equipped with rectifying tower (17), rectifying tower (17) discharge gate one end is equipped with condenser one-level (18), rectifying tower (20) one-level condenser (20) one end is equipped with cooling product, rectifying tower (20) one-level cooling product (20).
2. The novel methyl acrylate production device according to claim 1, wherein: one end of the esterification primary condenser (3) is provided with a tail gas catcher (4), an esterification coalescence phase separator (6) is arranged between the esterification primary condenser (3) and the rough steaming MA receiving groove (5), and one end of a discharge hole of the tail gas catcher (4) is connected with one end of the esterification coalescence phase separator (6).
3. The novel methyl acrylate production device according to claim 1, wherein: a water washing buffer tank (10) is arranged between the static mixer II (8) and the static mixer III (9).
4. The novel methyl acrylate production device according to claim 1, wherein: one end of the top of the water washing kettle (11) is provided with an emptying catcher (12).
5. The novel methyl acrylate production device according to claim 1, wherein: a vacuum catcher (19) is arranged between the rectifying first-stage condenser (18) and the product cooler (20).
6. The novel methyl acrylate production device according to claim 4, wherein: the gas phase entering from the left upper half part of the emptying catcher (12) is the gas phase of the water washing kettle, and is changed into liquid phase after being condensed by the emptying catcher, and flows into the water washing kettle from the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123117313.XU CN220176822U (en) | 2021-12-13 | 2021-12-13 | Novel methyl acrylate production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123117313.XU CN220176822U (en) | 2021-12-13 | 2021-12-13 | Novel methyl acrylate production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220176822U true CN220176822U (en) | 2023-12-15 |
Family
ID=89101291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123117313.XU Active CN220176822U (en) | 2021-12-13 | 2021-12-13 | Novel methyl acrylate production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220176822U (en) |
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2021
- 2021-12-13 CN CN202123117313.XU patent/CN220176822U/en active Active
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