CN209722009U - A kind of polyisobutene process units that raw material cools down step by step - Google Patents
A kind of polyisobutene process units that raw material cools down step by step Download PDFInfo
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- CN209722009U CN209722009U CN201920332257.5U CN201920332257U CN209722009U CN 209722009 U CN209722009 U CN 209722009U CN 201920332257 U CN201920332257 U CN 201920332257U CN 209722009 U CN209722009 U CN 209722009U
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Abstract
The utility model relates to a kind of polyisobutene process units that raw material cools down step by step.Including raw material storage tank, it is characterized in that the raw material storage tank connects forecooler by discharge nozzle, the forecooler connects deep freezer, the deep freezer reconnects polymeric kettle, the polymeric kettle connects weight-removing column by pipeline, the weight-removing column includes the rectifying section on top and the stripping section of lower part, the rectifying section connects isobutene rectifying column by pipeline, the stripping section connects hexane rectifying column by pipeline, the upper end of the hexane rectifying column connects return tank by pipeline, one outlet pipe and a return pipe are set on the return tank, the return pipe is connected to the top of hexane rectifying column.The utility model cools down step by step to the raw material of reaction, can preferably reach reaction temperature, it is ensured that reaction effect.Production cost can also be reduced to product recycling and reusing.
Description
Technical field
The utility model relates to a kind of polyisobutene process units that raw material cools down step by step.
Background technique
At present in the production procedure of production polyisobutene, generally only has one for raw material to twice cooling process, drop
Temperature is not thorough enough, not using stringent cooling process step by step, influences subsequent production processing.Existing system is also without being directed to isobutyl
Alkene and hexane carry out the combined mechanism of purification recycling, improve production cost, also increase material loss and environmental pollution,
The demand of industry development is not met.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of polyisobutene that raw material cools down step by step production dress
It sets, there is cooling structure step by step, raw material is made preferably to react to each other, rectification and purification recycling can be carried out to isobutene and hexane,
Material loss is reduced, production cost is reduced.
The utility model adopts the following technical scheme: a kind of polyisobutene process units that raw material cools down step by step, including original
Expect storage tank, it is characterised in that the raw material storage tank connects forecooler by discharge nozzle, and the forecooler connects deep freezer, institute
The deep freezer stated reconnects polymeric kettle, and the polymeric kettle connects weight-removing column by pipeline, and the weight-removing column includes the essence on top
The stripping section of section and lower part is evaporated, the rectifying section connects isobutene rectifying column by pipeline, and the stripping section passes through pipeline
Hexane rectifying column is connected, the upper end of the hexane rectifying column connects return tank by pipeline, is arranged one on the return tank
A outlet and a return pipe, the return pipe are connected to the top of hexane rectifying column.
The forecooler is the tubular heat exchanger of tube side shell side separation.
The lower part of the hexane rectifying column connects secondary refining tower by pipeline.
The weight-removing column connects reboiler by pipeline respectively with the lower part side of hexane rectifying column.
Weight-removing column top side connects return tank by pipeline, and the return tank connects weight-removing column by pipeline.
The utility model cools down step by step to the raw material of reaction, can preferably reach reaction temperature, it is ensured that reaction effect.
Weight-removing column removing solvent and responseless isobutene are recycled, isobutene enters isobutene rectifying from rectifying section (tower top separation)
Tower is recycled after further purifying and is continued to use.Utilization rate is improved, nearly 1/10th isobutene can be recycled every year.And
Hexane continues to use after capable of entering the purification of hexane rectifying column from stripping section, due to having carried out recycling and reusing to main reactant,
It effectively reduces cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The present invention will be further illustrated below in conjunction with specific embodiments.
The polyisobutene process units that a kind of raw material as shown in Figure 1 cools down step by step, including raw material storage tank, raw material storage tank are logical
Discharge nozzle connection forecooler 10 is crossed, the forecooler connects deep freezer 11, and the deep freezer reconnects polymeric kettle 12, described
Polymeric kettle weight-removing column 1 is connected by pipeline, material inlet is set on weight-removing column, the weight-removing column include top rectifying section and
The stripping section of lower part, the rectifying section connect isobutene rectifying column 3 by pipeline, and the stripping section is connected by pipeline 8
The upper end of hexane rectifying column 2, hexane rectifying column connects return tank 4 by pipeline, and one outlet pipe 9 is arranged on the return tank
With a return pipe 5, return pipe 5 is connected to the top of hexane rectifying column.
The lower part of hexane rectifying column connects secondary refining tower 7 by pipeline.The lower part side of weight-removing column and hexane rectifying column
Reboiler 6 is connected by pipeline respectively.Weight-removing column top side connects return tank 4 by pipeline, and the return tank passes through
Return pipe 5 connects weight-removing column 1.
Material after reaction enters the heating of liter film, remove solvent and responseless isobutene (reaction without 100% into
Row), this partial solvent is mixed into weight-removing column, different according to respective evaporating temperature, and isobutene is from rectifying section (tower
Top separation) enter after isobutene rectifying column further purifies and recycles and continue to use.Utilization rate is improved, cost is reduced.It every year can be with
Recycle nearly 1/10th isobutene.And hexane continues to use after capable of entering the purification of hexane rectifying column from stripping section, this reality
Recycling and reusing has been carried out to main reactant with novel, has been effectively reduced cost.
Raw material (the mixture room temperature of isobutene and hexane) is introduced into forecooler and is tentatively cooled down by the utility model, in advance
Cooler is the separation of tube side shell side.It can be used and exchange heat from the material that polymeric kettle comes out, benefit can exactly reduce raw material
Temperature, improve reaction after material temperature, exchange energy, save the cost.By tentatively cooling down, (temperature is Celsius subzero 10
Degree) material enter deep freezer.It exchanges heat with refrigerant, temperature reaches subzero 20 degrees Celsius, and material enters back into polymeric kettle, temperature
Reaction temperature (subzero 25 degrees Celsius) is further lowered into be reacted.
Product after reaction recycles weight-removing column removing solvent and responseless isobutene, and isobutene is from rectifying section (tower
Top separation) enter after isobutene rectifying column further purifies and recycles and continue to use.Improve utilization rate, can recycle every year by
Nearly 1/10th isobutene.And hexane continues to use after capable of entering the purification of hexane rectifying column from stripping section, due to key reaction
Object has carried out recycling and reusing, effectively reduces cost.
It should be understood that these embodiments are merely to illustrate the utility model rather than limitation the scope of the utility model.This
Outer to should be understood that after reading the content taught by the present invention, those skilled in the art can make the utility model each
Kind change or modification, these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (5)
1. a kind of polyisobutene process units that raw material cools down step by step, including raw material storage tank, it is characterised in that the raw material storage
Tank connects forecooler by discharge nozzle, and the forecooler connects deep freezer, and the deep freezer reconnects polymeric kettle, described
Polymeric kettle connects weight-removing column by pipeline, and the weight-removing column includes the rectifying section on top and the stripping section of lower part, the rectifying
Section connects isobutene rectifying column by pipeline, and the stripping section connects hexane rectifying column, the hexane rectifying by pipeline
The upper end of tower connects return tank by pipeline, and one outlet pipe and a return pipe are arranged on the return tank, and described returns
Flow tube is connected to the top of hexane rectifying column.
2. the polyisobutene process units that a kind of raw material according to claim 1 cools down step by step, it is characterised in that described
Forecooler is the tubular heat exchanger of tube side shell side separation.
3. the polyisobutene process units that a kind of raw material according to claim 2 cools down step by step, it is characterised in that it is described oneself
The lower part of alkane rectification tower connects secondary refining tower by pipeline.
4. the polyisobutene process units that a kind of raw material according to claim 3 cools down step by step, it is characterised in that described
Weight-removing column connects reboiler by pipeline respectively with the lower part side of hexane rectifying column.
5. the polyisobutene process units that a kind of raw material according to claim 4 cools down step by step, it is characterised in that described de-
The top Chong Ta side connects return tank by pipeline, and the return tank connects weight-removing column by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920332257.5U CN209722009U (en) | 2019-03-15 | 2019-03-15 | A kind of polyisobutene process units that raw material cools down step by step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920332257.5U CN209722009U (en) | 2019-03-15 | 2019-03-15 | A kind of polyisobutene process units that raw material cools down step by step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209722009U true CN209722009U (en) | 2019-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920332257.5U Active CN209722009U (en) | 2019-03-15 | 2019-03-15 | A kind of polyisobutene process units that raw material cools down step by step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209722009U (en) |
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2019
- 2019-03-15 CN CN201920332257.5U patent/CN209722009U/en active Active
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