CN206940774U - A kind of tetrahydrofuran dehydration device - Google Patents
A kind of tetrahydrofuran dehydration device Download PDFInfo
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- CN206940774U CN206940774U CN201720446148.7U CN201720446148U CN206940774U CN 206940774 U CN206940774 U CN 206940774U CN 201720446148 U CN201720446148 U CN 201720446148U CN 206940774 U CN206940774 U CN 206940774U
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Abstract
The utility model patent discloses a kind of tetrahydrofuran dehydration device, it is characterised in that：Including head tank, the outlet connection charging pump inlet of described head tank, the outlet connection vaporising device entrance of described feed pump；The outlet connection infiltration evaporation membrane separation device of described vaporising device；Described infiltration evaporation membrane separation device includes at least one set of infiltration vaporization membrane module, and described infiltration vaporization membrane module includes material inlet, penetrating fluid outlet and concentrated solution outlet；Described concentrated solution outlet connects the first condenser, the outlet connection products pot of the first described condenser by concentrating pipeline；The penetrating fluid outlet is sequentially connected the second condenser and vavuum pump, the condensate outlet connection infiltration flow container of the second described condenser by penetrating fluid pipeline.Tetrahydrofuran dehydration device described in the utility model, it is dehydrated for tetrahydrofuran, has the advantages that equipment investment is few, energy consumption is low, cycles of concentration is high and be added without other compounds.
Description
Technical field
Dehydration of organic solvent field is the utility model is related to, more particularly to a kind of tetrahydrofuran dehydration device.
Background technology
Tetrahydrofuran is heterocycle organic compound.It is one of most strong polarity ethers, is chemically reacting and is extracting
When be used as a kind of solvent of middle polarity；Tetrahydrofuran has the characteristics that low toxicity, low boiling, good fluidity, is a kind of important
Organic synthesis raw material and excellent solvent, tool have been widely used, and tetrahydrofuran has good dissolubility to many organic matters, it
It can dissolve and remove polyethylene, all organic compounds beyond polypropylene and fluororesin, particularly to polyvinyl chloride, gather inclined chloroethene
Alkene, and sting aniline and have good dissolution, it is widely used as reactive solvents, the title for having " alembroth ".
In industrial production, the impurity such as water are often brought when tetrahydrofuran uses as solvent into, make tetrahydrofuran because containing
Impurity and can not reuse, it is directly discarded, both wasted, and polluted environment again, and do not met the demand for development of energy-saving and emission-reduction.In recent years
Come, with expanding day by day both at home and abroad to the high-purity tetrahydrofuran market demand, tetrahydrofuran is further dehydrated, purifies and also get over
To be more concerned.Tetrahydrofuran mainly has following several recovery process at present：（1）Atmospheric distillation：Rectifying separates at ambient pressure
To tetrahydrofuran and the azeotropic mixture of water, this azeotropic mixture is still containing a certain amount of
Moisture, because wherein moisture is to exist as an azeotrope, by conventional distil-lation means or fractionation strategy without
Method makes tetrahydrofuran be separated with azeotropic mixture reclaimed water, thus can not meet some extremely low moisture requirements, and this process energy consumption and cost
It is higher.（2）Extracting rectifying：The extractant of third component is added in distillation process, the relative volatility changed between component is come in fact
The separation of existing former azeotropic mixture, but the dosage of extracting rectifying extractant in process is larger, and energy resource consumption and equipment investment are also larger, and
Third component is possible to bring into tetrahydrofuran product.（3）Variable-pressure rectification：Variable-pressure rectification need not introduce third component, pass through
Azeotropic forms the change with pressure, the separating azeotrope under different pressure.But variable-pressure rectification equipment is complicated, it is necessary to more theory
Column plate, energy consumption are higher.
The content of the invention
In view of the above-mentioned problems, the purpose of this utility model is to provide, a kind of equipment investment is few, energy consumption is low, cycles of concentration is high
Tetrahydrofuran dehydration device.
To reach above-mentioned purpose, the technical scheme that the utility model is proposed is：A kind of tetrahydrofuran dehydration device, it is special
Sign is：Including head tank, the outlet connection charging pump inlet of described head tank, the outlet connection evaporation of described feed pump
Device portal；The outlet connection infiltration evaporation membrane separation device of described vaporising device；Described infiltration evaporation membrane separation device
Including at least one set of infiltration vaporization membrane module, described infiltration vaporization membrane module includes material inlet, penetrating fluid outlet and concentration
Liquid exports；Described concentrated solution outlet connects the first condenser, the outlet connection of the first described condenser by concentrating pipeline
Products pot；The penetrating fluid outlet is sequentially connected the second condenser and vavuum pump, the described second condensation by penetrating fluid pipeline
The condensate outlet connection infiltration flow container of device；Zeolite molecular sieve inoranic membrane is provided with described infiltration vaporization membrane module, it is described
Zeolite molecular sieve inoranic membrane is NaA type zeolite molecular sieves inoranic membrane, T-shaped zeolite molecular sieve inoranic membrane or ZSM-5 type zeolite molecules
Sieve inoranic membrane.
Preferably, in addition to a heat exchanger, described heat exchanger include Heating medium, heating agent outlet, refrigerant import,
Refrigerant exit；Described refrigerant import connection charging pump discharge, refrigerant exit connection evaporator inlet；The connection concentration of heating agent entrance
Pipeline, the first condensator outlet of heating agent outlet connection.
Preferably, described Pervaporation membrane separator is in series by least two groups of infiltration vaporization membrane modules.
Preferably, described vaporising device is evaporator.
Using above-mentioned technical proposal, tetrahydrofuran dehydration device described in the utility model, it is dehydrated for tetrahydrofuran, tool
Have the advantages that equipment investment is few, energy consumption is low, cycles of concentration is high and be added without other compounds.
Brief description of the drawings
Fig. 1 is the schematic diagram of tetrahydrofuran dehydration device embodiment 1 described in the utility model；
Fig. 2 is infiltration vaporization membrane module structural representation described in the utility model.
Fig. 3 is the schematic diagram of tetrahydrofuran dehydration device embodiment 2 described in the utility model.
Embodiment
With reference to the accompanying drawings and detailed description, the utility model is described further.
Embodiment 1
As shown in Figure 1 and Figure 2, tetrahydrofuran dehydration device described in the utility model, including head tank 10, described original
The outlet connection charging pump inlet 12 of batch can 11, the outlet connection entrance of vaporising device 13 of feed pump 12；Vaporising device 13 goes out
Mouth connection infiltration evaporation membrane separation device 14；Infiltration evaporation membrane separation device 14 includes three groups of infiltrating and vaporizing membrane groups being serially connected
Part 141, infiltration vaporization membrane module 141 include material inlet 1410, penetrating fluid outlet 1411 and concentrated solution outlet 1412；Concentrate
Outlet 1412 connects the first condenser 16, the outlet connection products pot 17 of the first condenser 16 by concentrating pipeline 105；Penetrating fluid
Outlet 1411 is sequentially connected the second condenser 20 and vavuum pump 21 by penetrating fluid pipeline 19, the second described condenser 20 it is cold
Condensate outlet connection infiltration flow container 22；141 are provided with zeolite molecular sieve inoranic membrane, described boiling in described infiltration vaporization membrane module
Stone molecular sieve inoranic membrane is NaA type zeolite molecular sieves inoranic membrane, T-shaped zeolite molecular sieve inoranic membrane or ZSM-5 type zeolite molecular sieves
Inoranic membrane.
Embodiment 2
As shown in figure 3, the difference of itself and embodiment 1 is, in addition to a heat exchanger 18, heat exchanger 18 include heating agent
Import, heating agent outlet, refrigerant import, refrigerant exit；Described refrigerant import connection feed pump 12 is exported, and refrigerant exit connection is steamed
Send out the entrance of device 13；Heating agent entrance connection concentration pipeline 15, the first condenser 16 of heating agent outlet connection export；By by finished off water
Heat exchange in tetrahydrofuran gas reduces the heat consumption of subsequent evaporation, further reduces whole device into material liquid
Energy resource consumption.
When it is implemented, said apparatus is dehydrated for tetrahydrofuran, it is as a result as follows：
| The moisture content wt.% of tetrahydrofuran in raw material | 20% | 20% | 20% |
| The inorganic film type of zeolite molecular sieve | NaA types | It is T-shaped | ZSM-5 types |
| Operation temperature/DEG C | 80-120 | 80-120 | 80-120 |
| Moisture content wt.% in concentrate | ＜ 0.5 | ＜ 1 | ＜ 1 |
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, is not departing from the spirit and scope of the present utility model that appended claims are limited, in form and details
On the utility model is made a variety of changes, be the scope of protection of the utility model.
Claims (4)
- A kind of 1. tetrahydrofuran dehydration device, it is characterised in that：Including head tank, the outlet connection feed pump of described head tank Import, the outlet connection vaporising device entrance of described feed pump；The outlet connection infiltrating and vaporizing membrane point of described vaporising device From device；Described infiltration evaporation membrane separation device includes at least one set of infiltration vaporization membrane module, described infiltrating and vaporizing membrane group Part includes material inlet, penetrating fluid outlet and concentrated solution outlet；Described concentrated solution outlet is cold by concentrating pipeline connection first Condenser, the outlet connection products pot of the first described condenser；Penetrating fluid outlet is sequentially connected the by penetrating fluid pipeline Two condensers and vavuum pump, the condensate outlet connection infiltration flow container of the second described condenser；Described infiltrating and vaporizing membrane group Zeolite molecular sieve inoranic membrane is provided with part, described zeolite molecular sieve inoranic membrane is NaA type zeolite molecular sieves inoranic membrane, T-shaped boiling Stone molecular sieve inoranic membrane or ZSM-5 type zeolite molecular sieve inoranic membranes.
- A kind of 2. tetrahydrofuran dehydration device according to claim 1, it is characterised in that：Also include a heat exchanger, institute The heat exchanger stated includes Heating medium, heating agent outlet, refrigerant import, refrigerant exit；Described refrigerant import connection feed pump Outlet, refrigerant exit connection evaporator inlet；Heating agent entrance connection concentration pipeline, the first condensator outlet of heating agent outlet connection.
- A kind of 3. tetrahydrofuran dehydration device according to claim 1, it is characterised in that：Described infiltration evaporation UF membrane Device is in series by least two groups of infiltration vaporization membrane modules.
- A kind of 4. tetrahydrofuran dehydration device according to claim 1, it is characterised in that：Described vaporising device is evaporation Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720446148.7U CN206940774U (en) | 2017-04-26 | 2017-04-26 | A kind of tetrahydrofuran dehydration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720446148.7U CN206940774U (en) | 2017-04-26 | 2017-04-26 | A kind of tetrahydrofuran dehydration device |
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| Publication Number | Publication Date |
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| CN206940774U true CN206940774U (en) | 2018-01-30 |
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| CN201720446148.7U Active CN206940774U (en) | 2017-04-26 | 2017-04-26 | A kind of tetrahydrofuran dehydration device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999669A (en) * | 2019-04-26 | 2019-07-12 | 广州汉至蓝能源与环境技术有限公司 | A kind of rapidly and efficiently flexible osmotic, evaporating and dewatering system and the dehydration method of purification based on the system |
| CN116041285A (en) * | 2022-12-08 | 2023-05-02 | 杰特(宁夏)科技有限公司 | Novel tetrahydrofuran dehydration process |
-
2017
- 2017-04-26 CN CN201720446148.7U patent/CN206940774U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109999669A (en) * | 2019-04-26 | 2019-07-12 | 广州汉至蓝能源与环境技术有限公司 | A kind of rapidly and efficiently flexible osmotic, evaporating and dewatering system and the dehydration method of purification based on the system |
| CN116041285A (en) * | 2022-12-08 | 2023-05-02 | 杰特(宁夏)科技有限公司 | Novel tetrahydrofuran dehydration process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190529 Address after: 361000 Fourth Floor, 53 Chengyi North Street, Xiamen Software Park Phase III, Fujian Province Patentee after: Xiamen central water Polytron Technologies Inc Address before: 361000 Building 106-A, Fortune Plaza, Jinshan, 2368 Huazhong Road, Huli District, Xiamen City, Fujian Province Patentee before: Xiamen Zhi Bo Hongsi Environmental Technology Co. Ltd. |
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| TR01 | Transfer of patent right |