CN208694290U - Cold hydrogenation low-pressure rectification processing device and processing system - Google Patents
Cold hydrogenation low-pressure rectification processing device and processing system Download PDFInfo
- Publication number
- CN208694290U CN208694290U CN201821325130.2U CN201821325130U CN208694290U CN 208694290 U CN208694290 U CN 208694290U CN 201821325130 U CN201821325130 U CN 201821325130U CN 208694290 U CN208694290 U CN 208694290U
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- Prior art keywords
- reboiler
- pipeline
- cold hydrogenation
- pressure distillation
- distillation processing
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- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 56
- 238000012545 processing Methods 0.000 title claims abstract description 56
- 238000004821 distillation Methods 0.000 claims description 47
- 239000007788 liquid Substances 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 18
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000009776 industrial production Methods 0.000 abstract 1
- 229910001510 metal chloride Inorganic materials 0.000 description 26
- 230000000903 blocking effect Effects 0.000 description 9
- 238000009835 boiling Methods 0.000 description 9
- 239000012535 impurity Substances 0.000 description 9
- 239000005046 Chlorosilane Substances 0.000 description 8
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008021 deposition Effects 0.000 description 5
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 5
- 239000005052 trichlorosilane Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000005049 silicon tetrachloride Substances 0.000 description 3
- 238000011001 backwashing Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- -1 chlorine silicon Alkane Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides a cold hydrogenation low pressure rectification processing apparatus and processing system relates to cold hydrogenation technical field. The cold hydrogenation low-pressure rectification treatment device comprises a reboiler, wherein a feeding pipeline is arranged at the top of the reboiler, a discharge pipeline is arranged at the bottom of the reboiler, a back flush pipeline is further arranged on the feeding pipeline of the reboiler, one end of the back flush pipeline is communicated with the feeding pipeline, and the other end of the back flush pipeline is communicated with the discharge pipeline; in addition, the device is simple and feasible to operate, and provides a basis for industrial production. The utility model also provides a cold hydrogenation low pressure rectification processing system, including rectifying column and above-mentioned cold hydrogenation low pressure rectification processing apparatus.
Description
Technical field
The utility model relates to cold hydrogenation technology fields, more particularly, to a kind of cold hydrogenation low-pressure distillation processing unit and place
Reason system.
Background technique
In cold hydrogenation rectifying part, need periodically by the metal chloride being enriched in reboiler by being located at the bottom of reboiler
Discharge gate discharge it reboiler, to reduce the metal chloride content in chlorosilane.But it is sent out during actual motion
It is existing, terminate in a discharge to this period before discharge next time, the material in reboiler discharge gate and its attached pipeline
It remains static for a long time.With the reduction of temperature, the metal chloride in reboiler discharge gate and pipeline is easy deposition
At the bottom discharging mouth of reboiler or knot causes line clogging on tube wall.Since metal chloride is comparatively viscous
It is thick, therefore pipe-dredging difficulty is larger, dredging process safety risk is higher, and leads to a large amount of metal chlorides being enriched in reboiler
Equal impurity cannot timely discharge system, seriously affect reboiler and entire the safe, continuous of rectification process system, stable operation.
In view of this, special propose the utility model.
Utility model content
The first of the utility model is designed to provide a kind of cold hydrogenation low-pressure distillation processing unit, can be to reboiler discharge
Mouth carries out continuous, disturbance formula and rinses, and effectively prevent the impurity such as sticky, not runny metal chloride to deposit, blocking reboiler
Discharge gate.
The second of the utility model is designed to provide a kind of cold hydrogenation low-pressure distillation processing system, using above-mentioned cold hydrogenation
Low-pressure distillation processing unit, to guarantee safe, continuous, the stable operation of the processing system.
In order to solve the above technical problems, the utility model spy adopts the following technical scheme that
The cold hydrogenation low-pressure distillation processing unit of one kind provided by the utility model, including reboiler；
Feeding line is provided at the top of the reboiler, the bottom of the reboiler is provided with discharge line；
Backwash pipeline is additionally provided on the feeding line, one end of the backwash pipeline and the feeding line connect
Logical, the other end is connected to the discharge line.
Further, on the basis of technical solutions of the utility model, backwash stream is provided on the backwash pipeline
Meter.
Further, on the basis of technical solutions of the utility model, isolating valve, is additionally provided on the backwash pipeline
Door.
Further, on the basis of technical solutions of the utility model, the quantity of the isolating valve is two, two institutes
State the two sides that isolating valve is separately positioned on the backwash flowmeter.
Further, on the basis of technical solutions of the utility model, the mass flow in the backwash pipeline accounts for institute
State the 1/20-1/5 of the mass flow in feeding line.
Further, on the basis of technical solutions of the utility model, the discharge line is connected to material recovering system.
The utility model additionally provides a kind of cold hydrogenation low-pressure distillation processing system, including at above-mentioned cold hydrogenation low-pressure distillation
Manage device and rectifying column；
Wherein, the reboiler is connected to by Steam Pipe line and descending liquid pipeline with the rectifying column.
Further, on the basis of technical solutions of the utility model, one end of the Steam Pipe line and the reboiler
Top connection, the other end of the Steam Pipe line is connected to the middle and upper part of the rectifying column；
One end of the descending liquid pipeline is connected to the top of the reboiler, the other end of the Steam Pipe line and the essence
Evaporate the bottom connection of tower.
Further, on the basis of technical solutions of the utility model, condenser is additionally provided at the top of the rectifying column.
Further, on the basis of technical solutions of the utility model, the feeding line, Steam Pipe line and descending liquid pipeline
On be provided with valve.
Compared with prior art, cold hydrogenation low-pressure distillation processing unit provided by the utility model, cold hydrogenation low-pressure distillation
Processing system has the following beneficial effects:
(1) the utility model provides a kind of cold hydrogenation low-pressure distillation processing unit, including reboiler, the top of reboiler
It is provided with feeding line, bottom is provided with discharge line, wherein also setting up backwash pipeline on feeding line, backwashes pipeline
One end be connected to feeding line, the other end is connected to discharge line, by backwash pipeline design so that it is neither influenced
The total chlorosilane feed amount of reboiler, and can carry out continuous, disturbance formula to reboiler discharge gate and rinse is effectively prevent sticky, no
The impurity such as runny metal chloride deposition, blocking reboiler discharge gate, improve in the prior art reboiler discharge gate, set
System cannot be discharged in the impurity such as a large amount of metal chlorides being enriched in standby and pipeline in time, seriously affect the safety of reboiler, connect
The technical issues of continuous stable operation；
The cold hydrogenation low-pressure distillation processing unit is easy to operate, easy, provides foundation for industrialized production.
(2) the utility model provides a kind of cold hydrogenation low-pressure distillation processing system, including rectifying column and above-mentioned cold hydrogenation
Low-pressure distillation processing unit can effectively prevent metal chloride etc. miscellaneous by using above-mentioned cold hydrogenation low-pressure distillation processing unit
Matter fast deposition blocks reboiler inside reboiler and discharge line, optimizes cold hydrogenation low-pressure distillation processing work
Skill ensure that cold hydrogenation the safe, continuous of low-pressure distillation processing system, stable operation, extend the service life of equipment.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by
Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of cold hydrogenation low-pressure distillation processing unit provided by the utility model；
Fig. 2 is the structural schematic diagram of cold hydrogenation low-pressure distillation processing system provided by the utility model.
Appended drawing reference:
10- reboiler；11- feeding line；12- discharge line；13- backwashes pipeline；131- backwashes flowmeter；132-
Isolating valve；14- Steam Pipe line；15- descending liquid pipeline；20- rectifying column；30- material recovering system.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In the description of the present invention, it should be noted that term " middle and upper part ", " top ", " bottom ", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this reality
It is described with novel with simplified, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore should not be understood as limiting the present invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
In the prior art, metal chloride be easy to be deposited at the bottom discharging mouth of reboiler or tie on tube wall to
Cause line clogging.Since the device is chronically at operating status, the difficulty and risk of dredging are all very high.
To solve the above problems, first aspect according to the present utility model, provides at the cold hydrogenation low-pressure distillation of one kind
Device is managed, it is specific as shown in Figure 1, wherein Fig. 1 is the structural schematic diagram of cold hydrogenation low-pressure distillation processing unit.
The cold hydrogenation low-pressure distillation processing unit includes reboiler 10, and feeding line 11 is provided at the top of reboiler 10, then
Boiling 10 bottom of device is provided with discharge line 12；
Backwash pipeline 13 is additionally provided on feeding line 11, one end of backwash pipeline 13 is connected to feeding line 11, separately
One end is connected to discharge line 12.
Cold hydrogenation low-pressure distillation processing unit provided by the utility model includes reboiler, be provided at the top of reboiler into
Expects pipe line, bottom are provided with discharge line, wherein also set up backwash pipeline on the feeding line of reboiler, backwash pipeline
One end is connected to feeding line, and the other end is connected to discharge line, by backwashing the design of pipeline, so that neither influencing to boil again
The total chlorosilane feed amount of device, and continuous, disturbance formula can be carried out to reboiler discharge gate and rinsed, effectively prevent it is sticky, be not easy to flow
The impurity such as dynamic metal chloride deposition, blocking reboiler discharge gate, improve in the prior art reboiler discharge gate, equipment and
The impurity such as a large amount of metal chlorides being enriched in pipeline cannot timely discharge system, seriously affect reboiler and entire processing unit
Safe, continuous, stable operation the technical issues of.
Specifically, reboiler 10 is that the liquid material heating of cold hydrogenation high-pressure system discharge is become gas, so as to herein
Solid impurity in liquid is separated.
In engineering to the basic demand of reboiler 10 be stable operation, easy to adjust, structure is simple, processing and manufacturing is easy,
Installation and repairing is convenient, service life is long, operational security is reliable, while being also considered as its occupied area and installation space height and to close
It is suitable.The selection of reboiler 10 can be set according to needs of production in the present invention.
It is additionally provided with backwash pipeline 13 on feeding line 11, backwashes branch of the pipeline 13 as feeding line 11, with
The discharge line 12 of reboiler 10 is connected, to realize to the backwash at 10 discharge gate of reboiler.It backwashes in pipeline 13
Material it is identical as the material composition in feeding line 11, mass flow is different.Pipeline 13 is backwashed to arrange from 10 bottom of reboiler
Expects pipe line 12 enters in reboiler 10, neither the total chlorosilane feed amount of influence reboiler 10, and can be to the discharge of reboiler 10
Mouth carries out continuous, disturbance formula and rinses, and effectively prevent the impurity such as sticky, not runny metal chloride to deposit, blocking reboiler
10 discharge gate.
It backwashes as a preferred implementation manner, and is provided with backwash flowmeter 131 on pipeline 13.
The setting backwash flowmeter 131 on backwash pipeline 13, convenient for observing the backwash of 10 bottom of reboiler in real time
Whether changes in flow rate situation, 10 discharge gate of accurate judgement reboiler are unimpeded.The type of backwash flowmeter 131 does not limit specifically
It is fixed, it can be selected from differential pressure flowmeter, spinner flowmeter, restriction flowmeter, slit flowmeter, volume-displacement, Electromagnetic Flow
Meter or ultrasonic flowmeter in any one.
Further, based on the above technical solution, it backwashes on pipeline 13 and is additionally provided with isolating valve 132.
Isolating valve 132 is that one kind is mounted in all kinds of pipe-line systems for strictly medium being prevented to flow backwards, and is protected thereafter
Medium or the not contaminated non-return class valve of equipment.The quantity and concrete model of isolating valve 132 are not particularly limited, can root
It is set according to actual needs.
The quantity of isolating valve 132 is two as a preferred implementation manner, and two isolating valves 132 are respectively set
In the two sides of backwash flowmeter 131.
Isolating valve 132 is set before and after backwashing flowmeter 131, convenient for backwash the dismantling of flowmeter 131, maintenance,
The effects of Fault Isolation.
Meanwhile it being also equipped with flowmeter on feeding line 11, convenient for the mass flow variation at 10 top of observation reboiler
Situation.
Further, on the basis of technical solutions of the utility model, the mass flow backwashed in pipeline 13 accounts for charging
The ratio of mass flow in pipeline 11 be 1/20-1/5, preferably 1/20-1/10, further preferably 1/15-1/12, it is more excellent
It is selected as 1/15.
Mass flow in backwash pipeline 13 accounts for the typical but non-limiting ratio of mass flow in feeding line 11
It is 1/20,1/16,1/15,1/12,1/10,1/8,1/6 or 1/5.
The discharge line 12 of reboiler 10 is connected to material recovering system 30 as a preferred implementation manner,；
Material recovering system 30 is mainly used for recycling the metal chloride and chlorosilane being discharged from reboiler 10, and to it
It is handled.
The application method of above-mentioned cold hydrogenation low-pressure distillation processing unit:
Reboiler carries out a discharge by discharge line every 1-10h, and backwash pipeline is closed when discharge, and discharge terminates
Backwash pipeline is opened afterwards, and continuous, disturbance is carried out to reboiler using the material in backwash pipeline and is rinsed, to prevent from boiling again
The blocking of device.
After above-mentioned cold hydrogenation low-pressure distillation processing unit, the blocking frequency of the bottom discharging mouth of reboiler is by it
Preceding blockings in 3-5 days are primary, are reduced to blocking in 3 months or so primary, or the longer time, solve the bottom row of reboiler substantially
Material mouth blockage problem.The cold hydrogenation low-pressure distillation processing unit substantially increases production efficiency, while also reducing unclog the pipe
Bring security risk.
The second aspect according to the present utility model additionally provides a kind of cold hydrogenation low-pressure distillation processing system, specifically such as
Shown in Fig. 2, wherein Fig. 2 is the structural schematic diagram of cold hydrogenation low-pressure distillation processing system.
The processing system includes above-mentioned cold hydrogenation low-pressure distillation processing unit and rectifying column 20, wherein reboiler 10 passes through
Steam Pipe line 14 and descending liquid pipeline 15 are connected to rectifying column 20.
Rectifying column 20 is mainly the difference using boiling points such as trichlorosilane, silicon tetrachloride, dichlorosilane, metal chlorides
It is different, by rectifying column 20 each component by multi-stage vaporizing, condensation, make to carry out sufficient mass-and heat-transfer, edge between each component
The flow direction of vapour-liquid redistribute and separated, finally realize the separating-purifying of trichlorosilane (TCS).Rectifying column 20
Type and installation parameter can be set according to needs of production.
Material enters inside reboiler 10 from feeding line 11, by heating, leads to after low-boiling material component evaporation
Steam Pipe line 14 is crossed to enter in rectifying column 20.High boiling metal chloride and chlorosilane in reboiler 10 pass through drainage conduit
Line 12 is discharged.
The cold hydrogenation low-pressure distillation processing system can effectively prevent by using above-mentioned cold hydrogenation low-pressure distillation processing unit
Only the impurity such as metal chloride fast deposition is inside reboiler and discharge line, and then blocks reboiler, optimizes cold hydrogen
Change low-pressure distillation treatment process, ensure that safe, continuous, the stable fortune of cold hydrogenation low-pressure distillation processing unit and processing system
Row, extends the service life of equipment.
Further, on the basis of technical solutions of the utility model, one end of Steam Pipe line 14 and the top of reboiler 10
Portion's connection, the other end of Steam Pipe line 14 are connected to the middle and upper part of rectifying column 20；
One end of descending liquid pipeline 15 is connected to the top of reboiler 10, the other end of Steam Pipe line 14 and the bottom of rectifying column 20
Portion's connection.
Steam Pipe line 14 and descending liquid pipeline 15 realize the connection of reboiler 10 Yu rectifying column 20.Steam Pipe line 14 is mainly
Gas through 10 heating evaporation of reboiler is delivered to rectifying column 20, descending liquid pipeline 15 mainly will be high boiling in rectifying column 20
Metal chloride returns in reboiler 10.
In order to control flow of the material in Steam Pipe line 14 and descending liquid pipeline 15, in Steam Pipe line 14 and descending liquid pipeline 15
On be provided with valve.
It is additionally provided at the top of rectifying column 20 as a preferred implementation manner, condenser (not identified in figure).Preferably,
Condenser is recirculated water cooling condenser.
The counter current contacting that gas-liquid two-phase is realized by the condensation of the condenser, to remove the metal chlorination in material
Object, high boiling metal chloride are returned in reboiler 10 by descending liquid pipeline 15.
The process flow of cold hydrogenation low-pressure distillation processing system is as follows: the object that cold hydrogenation high-pressure system temperature is 40-70 DEG C
Material (main component is trichlorosilane, silicon tetrachloride, dichlorosilane, metal chloride etc.) is entered from feeding line 11 and is boiled again
In device 10, after being heated to 104-115 DEG C or so in reboiler 10, low-boiling chlorosilane (trichlorosilane, silicon tetrachloride, two
Chlorine dihydro silicon) and the evaporation of a small amount of metal chloride after entered in rectifying column 20 by Steam Pipe line 14.The column overhead is equipped with one
A recirculated water cooling condenser realizes the counter current contacting of gas-liquid two-phase by the condensation of the condenser, to remove in material
Metal chloride.High boiling metal chloride is returned in reboiler 10 by descending liquid pipeline.Due to metal chloride and chlorine silicon
Alkane is immiscible and its density is larger, and bottom can be slowly deposited in reboiler 10, needs to come at interval of a period of time in technique
Discharge the metal chloride in reboiler 10.Metal chloride and chlorosilane are emitted by the discharge gate in 10 bottom of reboiler
Material recovering system 30.After reboiler 10 is by 12 discharge of discharge line, backwash pipeline 13 is opened, backwash is utilized
Material in pipeline 13 carries out continuous, disturbance to reboiler 10 and rinses, to prevent the blocking of reboiler 10.
In view of it is above-mentioned it is cold hydrogenation low-pressure distillation processing unit or it is cold hydrogenation low-pressure distillation processing system advantage so that its
There is good application in cold hydrogenation process, provide foundation for industrialized production.
Finally, it should be noted that above each embodiment is only to illustrate the technical solution of the utility model, rather than to it
Limitation；Although the utility model is described in detail referring to aforementioned each embodiment, those skilled in the art
It is understood that it can still modify to technical solution documented by aforementioned each embodiment, or to part of or
Person's all technical features are equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution originally
The range of each embodiment technical solution of utility model.
Claims (10)
1. a kind of cold hydrogenation low-pressure distillation processing unit, which is characterized in that including reboiler；
Feeding line is provided at the top of the reboiler, the bottom of the reboiler is provided with discharge line；
Backwash pipeline is additionally provided on the feeding line, one end of the backwash pipeline is connected to the feeding line, separately
One end is connected to the discharge line.
2. cold hydrogenation low-pressure distillation processing unit according to claim 1, which is characterized in that set on the backwash pipeline
It is equipped with backwash flowmeter.
3. cold hydrogenation low-pressure distillation processing unit according to claim 2, which is characterized in that on the backwash pipeline also
It is provided with isolating valve.
4. cold hydrogenation low-pressure distillation processing unit according to claim 3, which is characterized in that the quantity of the isolating valve
It is two, two isolating valves are separately positioned on the two sides of the backwash flowmeter.
5. cold hydrogenation low-pressure distillation processing unit according to any one of claims 1-4, which is characterized in that the recoil
Wash the 1/20-1/5 for the mass flow that the mass flow in pipeline accounts in the feeding line.
6. cold hydrogenation low-pressure distillation processing unit according to any one of claims 1-4, which is characterized in that the discharge
Pipeline is connected to material recovering system.
7. a kind of cold hydrogenation low-pressure distillation processing system, which is characterized in that including cold hydrogen as claimed in any one of claims 1 to 6
Change low-pressure distillation processing unit and rectifying column；
Wherein, the reboiler is connected to by Steam Pipe line and descending liquid pipeline with the rectifying column.
8. cold hydrogenation low-pressure distillation processing system according to claim 7, which is characterized in that one end of the Steam Pipe line
It is connected to the top of the reboiler, the other end of the Steam Pipe line is connected to the middle and upper part of the rectifying column；
One end of the descending liquid pipeline is connected to the top of the reboiler, the other end and the rectifying column of the Steam Pipe line
Bottom connection.
9. cold hydrogenation low-pressure distillation processing system according to claim 7, which is characterized in that also set at the top of the rectifying column
It is equipped with condenser.
10. cold hydrogenation low-pressure distillation processing system according to claim 7, which is characterized in that the feeding line rises vapour
Valve is provided on pipeline and descending liquid pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325130.2U CN208694290U (en) | 2018-08-16 | 2018-08-16 | Cold hydrogenation low-pressure rectification processing device and processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821325130.2U CN208694290U (en) | 2018-08-16 | 2018-08-16 | Cold hydrogenation low-pressure rectification processing device and processing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208694290U true CN208694290U (en) | 2019-04-05 |
Family
ID=65942477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821325130.2U Active CN208694290U (en) | 2018-08-16 | 2018-08-16 | Cold hydrogenation low-pressure rectification processing device and processing system |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721933A (en) * | 2018-08-16 | 2018-11-02 | 青海黄河上游水电开发有限责任公司新能源分公司 | Cold hydrogenation low-pressure rectification processing device, cold hydrogenation low-pressure rectification processing system and anti-blocking method |
-
2018
- 2018-08-16 CN CN201821325130.2U patent/CN208694290U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108721933A (en) * | 2018-08-16 | 2018-11-02 | 青海黄河上游水电开发有限责任公司新能源分公司 | Cold hydrogenation low-pressure rectification processing device, cold hydrogenation low-pressure rectification processing system and anti-blocking method |
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