CN203360332U - Continuous tar separation device for vinyl acetylene reaction tower - Google Patents
Continuous tar separation device for vinyl acetylene reaction tower Download PDFInfo
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- CN203360332U CN203360332U CN 201320453444 CN201320453444U CN203360332U CN 203360332 U CN203360332 U CN 203360332U CN 201320453444 CN201320453444 CN 201320453444 CN 201320453444 U CN201320453444 U CN 201320453444U CN 203360332 U CN203360332 U CN 203360332U
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Abstract
The utility model discloses a continuous tar separation device for a vinyl acetylene reaction tower. The continuous tar separation device comprises a vinyl acetylene reaction tower which is communicated with a catalytic agent and tar separation tank through a catalytic agent pumping pump, the catalytic agent and tar separation tank is communicated with a tar extraction tower and a catalytic agent storage tank through pipelines respectively; a hydrochloric acid inlet is formed in the upper part of the tar extraction tower, a methylbenzene inlet is formed in the lower part of the tar extraction tower, a methylbenzene and tar mixture outlet is formed in the top of the tar extraction tower, and a tar swelling agent and hydrochloric acid outlet is formed in the bottom of the tar extraction tower and communicated with the catalytic agent storage tank through a pipeline; and the upper part of the catalytic agent storage tank is communicated with a tar swelling agent storage tank through a pipeline, and the bottom of the catalytic agent storage tank is communicated with the lower part of the vinyl acetylene reaction tower through a tar swelling agent and catalytic agent delivery pump. With the adoption of the continuous tar separation device, the shut-down cleaning period of the vinyl acetylene reaction tower can be prolonged to be longer than six months, the material loss is reduced, tar is prevented from blocking the pipelines and a valve, and the labor intensity of an operator is reduced.
Description
Technical field
The utility model belongs to chemical technology field, particularly a kind of being applied to during the acetylene method chloroprene rubber produces, vinylacetylene reaction tower tar continuous separation device.
Background technology
The main method of at present, producing in the world chloroprene rubber is butadiene process; In China, because being subject to the restriction of divinyl raw material sources and production cost, all chloroprene rubber devices are still acetylene method.
In acetylene method chloroprene rubber device, the first step is that the acetylene dimerization reaction generates vinylacetylene (MVA), at acetylene generation dimerization reaction, generate in the vinylacetylene process, there is tar (superpolymer) by product to generate, because tar is assembled in reaction tower, reaction tower needs every 3 months tar in parking flash liberation catalyst.The frequent parking of reaction tower, increased material loss, shortened device working time, thereby reduced the reaction output of column, also increased operator's labour intensity, and tar also can the blocking pipe valve simultaneously.
The utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of by adding the tar swelling agent to carry out continuous separating tar in the vinylacetylene reaction tower, thereby extend the vinylacetylene reaction tower vinylacetylene reaction tower tar continuous separation device of working time.
The technical solution of the utility model is achieved in that vinylacetylene reaction tower tar continuous separation device, comprise the vinylacetylene reaction tower, it is characterized in that: described vinylacetylene reaction tower is communicated with catalyst and tar separation tank by the catalyst extractor pump, described catalyst and tar separation tank are communicated with tar extraction tower and catalyst storage tank respectively by pipeline, be provided with the hydrochloric acid import on described tar extraction tower top, its underpart is provided with the toluene import, described tar extraction top of tower is toluene and blended tars outlet, its bottom is tar swelling agent and hydrochloric acid soln outlet and is communicated with the catalyst storage tank by pipeline, described catalyst storage tank top is communicated with tar swelling agent storage tank by pipeline, its bottom is communicated with vinylacetylene reaction tower bottom by tar swelling agent and catalyst transferpump.
The utility model by adding the tar swelling agent to carry out continuous separating tar in the vinylacetylene reaction tower, thereby extend vinylacetylene reaction tower working time, swelling agent and the blended tars separated carried out to separation of extractive distillation simultaneously, make the recycling use of tar swelling agent, reduced use cost.After adopting the utility model, the vinylacetylene reaction tower cleaning during shutdown cycle can extend to more than 6 months, had reduced material loss, and had prevented tar blocking pipe and valve, had reduced operator's labour intensity.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 is the vinylacetylene reaction tower, and 2 is the catalyst extractor pump, and 3 is catalyst and tar separation tank, and 4 is the tar extraction tower, and 5 is the catalyst storage tank, and 6 is tar swelling agent storage tank, and 7 is tar swelling agent and catalyst transferpump.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1, vinylacetylene reaction tower tar continuous separation device, comprise vinylacetylene reaction tower 1, described vinylacetylene reaction tower 1 is communicated with catalyst and tar separation tank 3 by catalyst extractor pump 2, described catalyst and tar separation tank 3 are communicated with tar extraction tower 4 and catalyst storage tank 5 respectively by pipeline, be provided with the hydrochloric acid import on described tar extraction tower 4 tops, its underpart is provided with the toluene import, described tar extraction tower 4 tops are toluene and blended tars outlet, its bottom is tar swelling agent and hydrochloric acid soln outlet and is communicated with catalyst storage tank 5 by pipeline, described catalyst storage tank 5 tops are communicated with tar swelling agent storage tank 6 by pipeline, its bottom is communicated with vinylacetylene reaction tower 1 bottom by tar swelling agent and catalyst transferpump 7.
As shown in Figure 1, separating technology of the present utility model comprises the following steps:
A), add the tar swelling agent in the vinylacetylene reaction tower, by the tar swelling fluidisation generated in the vinylacetylene reaction tower, then with the catalyst extractor pump, the tar reaction soln on-line continuous of swelling fluidisation in the vinylacetylene reaction tower is retracted in catalyst and tar separation tank, wherein, described tar swelling agent is diethylene glycol monobutyl ether or other allied substances.
B), the reaction soln extracted out the mixture that is catalyst, tar swelling agent and tar, send into catalyst and tar separation tank by the density difference static layering, upper strata is tar swelling agent and tar, lower floor is catalyst solution.
C), the catalyst solution of lower floor enters the catalyst storage tank under the interface liquid level is controlled in catalyst and tar separation tank, the tar swelling agent on upper strata and blended tars enter the tar extraction tower under liquid level is controlled.
D), add hydrochloric acid soln from tar extraction tower top, add toluene from bottom, to enter tar swelling agent and the tar separation in the tar extraction tower by extracting rectifying, after extracting rectifying, from the tar extraction top of tower out be the mixture of toluene and tar, send and burn or sell outward as byproduct; From the tar extraction tower bottom out be tar swelling agent and hydrochloric acid soln and send into the catalyst storage tank by pipeline.
E), catalyst, tar swelling agent and the hydrochloric acid soln in the catalyst storage tank sent the vinylacetylene reaction tower back to by tar swelling agent and the supercharging of catalyst transferpump, realize recycling of tar swelling agent, loss seldom, wherein, the acid number that hydrochloric acid soln can conditioned reaction solution; And the fresh tar swelling agent supplemented is sent in the vinylacetylene reaction tower and is recycled by tar swelling agent and catalyst transferpump after adding the catalyst storage tank.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. vinylacetylene reaction tower tar continuous separation device, comprise vinylacetylene reaction tower (1), it is characterized in that: described vinylacetylene reaction tower (1) is communicated with catalyst and tar separation tank (3) by catalyst extractor pump (2), described catalyst and tar separation tank (3) are communicated with tar extraction tower (4) and catalyst storage tank (5) respectively by pipeline, be provided with the hydrochloric acid import on described tar extraction tower (4) top, its underpart is provided with the toluene import, described tar extraction tower (4) top is toluene and blended tars outlet, its bottom is tar swelling agent and hydrochloric acid soln outlet and is communicated with catalyst storage tank (5) by pipeline, described catalyst storage tank (5) top is communicated with tar swelling agent storage tank (6) by pipeline, its bottom is communicated with vinylacetylene reaction tower (1) bottom by tar swelling agent and catalyst transferpump (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320453444 CN203360332U (en) | 2013-07-29 | 2013-07-29 | Continuous tar separation device for vinyl acetylene reaction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320453444 CN203360332U (en) | 2013-07-29 | 2013-07-29 | Continuous tar separation device for vinyl acetylene reaction tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203360332U true CN203360332U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320453444 Expired - Fee Related CN203360332U (en) | 2013-07-29 | 2013-07-29 | Continuous tar separation device for vinyl acetylene reaction tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203360332U (en) |
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2013
- 2013-07-29 CN CN 201320453444 patent/CN203360332U/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 | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190626 Address after: 401220 Chemicals Village No.1 A, Changshou District, Chongqing City, 4 blocks Co-patentee after: CHINA CHENGDA ENGINEERING Co.,Ltd. Patentee after: CHONGQING CHEMICAL & PHARMACEUTICAL CHANGSHOU CHEMICAL GROUP Co.,Ltd. Address before: 610000 Middle Section 279 Tianfu Avenue, Chengdu High-tech Zone, Sichuan Province Patentee before: CHINA CHENGDA ENGINEERING Co.,Ltd. |
|
| 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: 20131225 |