CN207221372U - Secondary flash device for sulfuric acid alkylation reaction product - Google Patents
Secondary flash device for sulfuric acid alkylation reaction product Download PDFInfo
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- CN207221372U CN207221372U CN201721082247.8U CN201721082247U CN207221372U CN 207221372 U CN207221372 U CN 207221372U CN 201721082247 U CN201721082247 U CN 201721082247U CN 207221372 U CN207221372 U CN 207221372U
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- secondary flash
- reaction product
- sulfuric acid
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- flash tank
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Abstract
A kind of secondary flash device for sulfuric acid alkylation reaction product is provided, including secondary flash tank, the reaction product of sulfuric acid alkylation production is delivered in secondary flash tank by flash evaporation feed pump, secondary flash tank is internally provided with heat exchanger, compressor is connected as secondary flash tank with heat exchanger and provides heat source, heat exchanger is also associated with the receiving tank for receiving four gas of carbon, receiving tank is exported four gas of carbon by four delivery pump of carbon, and the isobutyl alkanoic acid sulphur tower feed pump that flash distillation reactant is delivered to isobutyl alkanoic acid sulphur tower is connected with secondary flash tank.The utility model makes the reaction product that sulfuric acid alkylation produces carry out secondary flash by secondary flash tank, it can reduce into the carbon four in rectifying column and other reaction products, rectifying column need to only separate a small amount of iso-butane and normal butane, so as to reduce the energy consumption of rectifying column, the operating cost of rectifying column is reduced.
Description
Technical field
The utility model category alkylation reaction product processing technology field, and in particular to one kind is used for sulfuric acid alkylation and reacts
The secondary flash device of product.
Background technology
At present, after China's ether carbon tetra-alkylation device generally use du pont company sulfuric acid alkylation production technology,
After vacuum flashing, part iso-butane is changed into liquid isobutane after compressor boosts, from cooler cooling and follows its reaction product
Ring uses, and is not flashed out carbon four and is separated with other reaction products with regard to diameter into rectifying column.Since reaction product temperature is low
In zero degrees celsius, along with flash evaporation effect is incomplete, so as to add the energy consumption of rectifying column, the operation of rectifying column is added
Expense.It is therefore desirable to propose to improve.
Utility model content
The technical problem that the utility model solves：A kind of secondary flash for sulfuric acid alkylation reaction product is provided to fill
Put, the utility model make sulfuric acid alkylation produce reaction product by secondary flash tank carry out secondary flash, can reduce into
Entering the carbon four in rectifying column and other reaction products, rectifying column need to only separate a small amount of iso-butane and normal butane, so that
Reduce the energy consumption of rectifying column, reduce the operating cost of rectifying column.
The technical solution adopted in the utility model：For the secondary flash device of sulfuric acid alkylation reaction product, including two
Secondary flash tank, the reaction product of sulfuric acid alkylation production are delivered in secondary flash tank by flash evaporation feed pump, the secondary sudden strain of a muscle
Steaming pot is internally provided with heat exchanger, and compressor is connected as secondary flash tank with the heat exchanger and provides heat source, and the heat exchanger also connects
The receiving tank for receiving four gas of carbon is connected to, the receiving tank is exported four gas of carbon by four delivery pump of carbon, described secondary
The isobutyl alkanoic acid sulphur tower feed pump that flash distillation reactant is delivered to isobutyl alkanoic acid sulphur tower is connected with flash tank.
Wherein, it is connected with gas-liquid separator between the compressor and secondary flash tank.
Further, the compressed gas temperature that the compressor produces reaches 70-80 degree and its makes two by heat exchanger conversion
Fluid temperature in secondary flash tank reaches 40-45 degree.
Further, it is connected with water washing tank between the flash evaporation feed pump and secondary flash tank.
Further, flash evaporation feed pump is pumped using P-301, in the outlet of flash evaporation feed pump by sulfuric acid alkylation
The reaction product boost in pressure of production is to 0.4-0.45MPa.
Further, it is connected with dehydrator between isobutyl alkanoic acid sulphur tower feed pump and isobutyl the alkanoic acid sulphur tower.
The utility model compared with prior art the advantages of：
1st, the reaction product that sulfuric acid alkylation produces is carried out secondary flash by secondary flash tank in this programme, can subtract
The carbon four and other reaction products, rectifying column entered less in rectifying column need to only separate a small amount of iso-butane and normal butane,
So as to reduce the energy consumption of rectifying column, the operating cost of rectifying column is reduced；
2nd, heat exchanger is internally provided with secondary flash tank in this programme, exchanged heat by compressor compresses gas and through heat exchanger
Heat source is provided for secondary flash tank, so that ensure that the fluid temperature in secondary flash tank reaches 40-45 degree, it is simple in structure, effectively protect
Demonstrate,prove the heat energy source of secondary flash tank；
3rd, be connected with gas-liquid separator in this programme between compressor and secondary flash tank, knockout drum can be right
Into the gas before compressor into row buffering, prevent liquid from entering compressor, effectively protect compressor, extend the use of compressor
Service life.
Brief description of the drawings
Fig. 1 is the structure principle chart of the utility model.
Embodiment
1 embodiment for describing the utility model below in conjunction with the accompanying drawings.
For the secondary flash device of sulfuric acid alkylation reaction product, as shown in Figure 1, including secondary flash tank 1, sulfuric acid alkane
The reaction product of base metaplasia production is delivered in secondary flash tank 1 by flash evaporation feed pump 3, it is preferred that the flash evaporation feed pump 3 is adopted
Pumped with P-301, in the outlet of flash evaporation feed pump 3 by the reaction product boost in pressure that sulfuric acid alkylation produces to 0.4-
0.45MPa；Moreover, water washing tank 2 is connected between flash evaporation feed pump 3 and secondary flash tank 1, can be first to reaction product
Carry out alkali cleaning and washing.
The secondary flash tank 1 is internally provided with heat exchanger 6, and compressor 5 is connected with the heat exchanger 6, is secondary flash tank 1
Heat source is provided, the compressed gas temperature that the compressor 5 produces reaches 70-80 degree and its makes secondary flash by the conversion of heat exchanger 6
Fluid temperature in tank 1 reaches 40-45 degree.Gas-liquid separator 4, gas-liquid are connected between the compressor 5 and secondary flash tank 1
Separator 4 can prevent liquid from entering compressor, effectively protect compressor to entering the gas before compressor into row buffering,
Extend the service life of compressor.
The heat exchanger 6 is also associated with the receiving tank 9 for receiving four gas of carbon, the carbon four that secondary flash tank 1 flashes off
Gas elder generation cooling down enters receiving tank 9, and the receiving tank 9 is exported four gas of carbon by four delivery pump 10 of carbon.It is described secondary
The isobutyl alkanoic acid that the other reactants flashed off in secondary flash tank 1 are delivered to isobutyl alkanoic acid sulphur tower is connected with flash tank 1
Sulphur tower feed pump 7, dehydrator 8 is connected between the isobutyl alkanoic acid sulphur tower feed pump 7 and isobutyl alkanoic acid sulphur tower, can be to entering
The reaction product of isobutyl alkanoic acid sulphur tower is first carried out dehydrating.
The utility model makes the reaction product that sulfuric acid alkylation produces carry out secondary flash by secondary flash tank 1, can
Need to only a small amount of iso-butane and normal butane be divided by reducing the carbon four entered in rectifying column and other reaction products, rectifying column
From so as to reduce the energy consumption of rectifying column, reducing the operating cost of rectifying column.
The preferred embodiment of above-described embodiment, simply the utility model, is not used for limiting the utility model practical range,
Therefore all equivalence changes done with content described in the utility model claims, the utility model claims model should all be included in
Within enclosing.
Claims (6)
1. the secondary flash device for sulfuric acid alkylation reaction product, it is characterised in that：Including secondary flash tank (1), sulfuric acid
The reaction product of alkylation production pumps (3) by flash evaporation feed and is delivered in secondary flash tank (1), the secondary flash tank (1)
Heat exchanger (6) is internally provided with, compressor (5) is connected as secondary flash tank (1) with the heat exchanger (6) and provides heat source, described to change
Hot device (6) is also associated with the receiving tank (9) for receiving four gas of carbon, and the receiving tank (9) will by four delivery pump of carbon (10)
Four gas of carbon exports, and the iso-butane that flash distillation reactant is delivered to isobutyl alkanoic acid sulphur tower is connected with the secondary flash tank (1)
Sour sulphur tower feed pump (7).
2. the secondary flash device according to claim 1 for sulfuric acid alkylation reaction product, it is characterised in that：It is described
Gas-liquid separator (4) is connected between compressor (5) and secondary flash tank (1).
3. the secondary flash device according to claim 2 for sulfuric acid alkylation reaction product, it is characterised in that：It is described
The compressed gas temperature that compressor (5) produces reaches 70-80 degree and its to be made in secondary flash tank (1) by heat exchanger (6) conversion
Fluid temperature reaches 40-45 degree.
4. the secondary flash device according to claim 1 for sulfuric acid alkylation reaction product, it is characterised in that：It is described
Flash evaporation feed pumps and is connected with water washing tank (2) between (3) and secondary flash tank (1).
5. the secondary flash device according to claim 4 for sulfuric acid alkylation reaction product, it is characterised in that：It is described
Flash evaporation feed is pumped (3) and is pumped using P-301, in the reaction product that the outlet of flash evaporation feed pump (3) produces sulfuric acid alkylation
Boost in pressure is to 0.4-0.45MPa.
6. the secondary flash device for sulfuric acid alkylation reaction product according to any one in claim 1-5, its
It is characterized in that：Dehydrator (8) is connected between the isobutyl alkanoic acid sulphur tower feed pump (7) and isobutyl alkanoic acid sulphur tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082247.8U CN207221372U (en) | 2017-08-28 | 2017-08-28 | Secondary flash device for sulfuric acid alkylation reaction product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721082247.8U CN207221372U (en) | 2017-08-28 | 2017-08-28 | Secondary flash device for sulfuric acid alkylation reaction product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207221372U true CN207221372U (en) | 2018-04-13 |
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ID=61859300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721082247.8U Active CN207221372U (en) | 2017-08-28 | 2017-08-28 | Secondary flash device for sulfuric acid alkylation reaction product |
Country Status (1)
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| CN (1) | CN207221372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110115852A (en) * | 2019-05-07 | 2019-08-13 | 中国科学院理化技术研究所 | Organic solvent rectifying recyclable device |
-
2017
- 2017-08-28 CN CN201721082247.8U patent/CN207221372U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110115852A (en) * | 2019-05-07 | 2019-08-13 | 中国科学院理化技术研究所 | Organic solvent rectifying recyclable device |
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