CN207576090U - Gas dehydration systems - Google Patents
Gas dehydration systems Download PDFInfo
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- CN207576090U CN207576090U CN201720847839.8U CN201720847839U CN207576090U CN 207576090 U CN207576090 U CN 207576090U CN 201720847839 U CN201720847839 U CN 201720847839U CN 207576090 U CN207576090 U CN 207576090U
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Abstract
This application discloses a kind of gas dehydration systems, the system includes hypergravity machine, gas-liquid separator, heat exchanger, surge tank and dehydration regeneration device, the gas vent of hypergravity machine is communicated in the gas-liquid separator, the circulation loop for forming absorbent is sequentially communicated between hypergravity machine, heat exchanger, surge tank, dehydration regeneration device, heat exchanger, hypergravity machine, circulating pump, mixed solution of the dehydration absorbent for single ionic liquid, the mixed solution of different kinds of ions liquid or ionic liquid and glycol solution are provided on the circulation loop.The system utilizes the characteristics of hypergravity equipment intensification absorbing reaction, and coupled ion liquid it is non-volatile, pollution-free, regeneration is simple the features such as, there are the advantages such as dehydration efficiency is high, device structure is simple, floor space is small, operating flexibility is big, equipment investment is low.It is dehydrated using the system, the outlet dry gas dehydration degree of balance reaches more than 95%, and dew point is at 20 DEG C hereinafter, being the ideal chose of gas dry dehydration.
Description
Technical field
The utility model is related to gas dry or absorption techniques field, more particularly to a kind of gas dehydration systems.
Background technology
Water is in commercial process, and most common impurity, its presence can be to industrial gasses in the various stages
Conveying, processing, using causing to seriously affect.It is embodied in：Such as there are a large amount of steam in unstripped gas, it is possible to can be given birth to hydro carbons
Into hydrate, and then cause the blocking of pipeline, valve and instrument, reduce pipe capacity or even generate physical broken
It is bad；The water in unstripped gas can dissolve CO simultaneously2、SO2、H2The sour gas such as S corrode pipeline and equipment.The presence of moisture can also
The calorific value of natural gas is reduced, product quality is caused to decline；In moist electronic workshop, humidity can be stitched directly by electron surface
Into electronic component, the bad phenomenons such as electronic product internal unit failure, short circuit is caused to occur.Therefore, it is dehydrated net in gas
Occupy very important status in chemical industry skill.
Gas dry dewatering mainly has at present:Freezing separation method, solvent absorption, solid drier absorption method.Its
Middle solvent absorption generally use glycol is as absorbent, but the process system is more complicated, triethylene glycol. solution regenerative process
Energy consumption is bigger；Triethylene glycol. solution lose in operation it is larger, it is easily contaminated, require supplementation with and purify；Triethylene glycol with
Oxidation reaction can occur for air contact, generate mordant organic acid.Ionic liquid because its steam forces down, thermal stability is high,
Structure and property can finely regulating etc., be widely used in the necks such as gas separation, extraction, electrochemistry, organic reaction, material preparation
Domain.In gas dewatering field, ionic liquid has high affinity with water, while can at a lower temperature realize again
It is raw, and ionic liquid steam forces down, it is lost in use minimum, and property is stablized, and is unlikely to deteriorate, greatly reduces
Operation and maintenance cost.
High-gravity technology since the advent of the world is just widely paid close attention to, applied to polymer removing monomer, gas it is de-
It removes and detaches, the fields such as desorption process (stripping), rectification and purification.With equipment volume is small, simple in structure, floor space is few；By force
Change transmission effect is notable, and carry-over factor improves the 1-3 order of magnitude；Residence time of material is short, suitable for certain special quick
Mixing and reaction process；It is short to reach stabilization time, convenient for opening, stopping, is conveniently replaceable object system, easily operated；Have a wide range of application, lead to
With property it is strong, operating flexibility is big the advantages that.Therefore high-gravity technology is the environmental gas dewatering process such as offshore platform, mountainous region, interior
Ideal chose.
Utility model content
The purpose of this utility model is to provide a kind of gas dehydration systems, to overcome deficiency of the prior art.
To achieve the above object, the utility model provides following technical solution：
The embodiment of the present application discloses a kind of gas dehydration systems, including hypergravity machine, gas-liquid separator, heat exchanger, buffering
Tank and dehydration regeneration device, the gas vent of the hypergravity machine are communicated in the gas-liquid separator, the hypergravity machine, heat exchange
The circulation loop for forming absorbent is sequentially communicated between device, surge tank, dehydration regeneration device, heat exchanger, hypergravity machine, it is described to follow
Circulating pump is provided in loop back path.
Preferably, in above-mentioned gas dehydration systems, the dehydration absorbent in the hypergravity machine is single ionic liquid
The mixed solution of body, the mixed solution of different kinds of ions liquid or ionic liquid and glycol solution.
Preferably, in above-mentioned gas dehydration systems, the circulating pump be set to the hypergravity machine inlet and
Between heat exchanger.
Preferably, in above-mentioned gas dehydration systems, the gas access of the hypergravity machine is provided with filter separator.
Preferably, in above-mentioned gas dehydration systems, the dehydration regeneration device is hypergravity machine, flash tank or regeneration
Tower.
Preferably, in above-mentioned gas dehydration systems, the cation of the ionic liquid is quaternary ammonium salt, quaternary alkylphosphonium salt
Class, pyridines or imidazoles；The anion of the ionic liquid is acetate, sulfuric acid ester, dimethyl phosphate radical ion, halogen
Class, sulfonium methylide acid ion, tetrafluoroborate, hexafluoro-phosphate radical, Sulfonates or amine salt.
Compared with prior art, the utility model has the advantage of：The utility model is filled using hypergravity machine as absorption
It puts, the mixing of the mixed solution or ionic liquid and glycol solution of ionic liquid or two kinds and two or more ionic liquids is molten
Liquid is as dehydrating agent.Make full use of hypergravity machine mass-transfer efficiency high, treating capacity is big, operating flexibility big advantage and ionic liquid
Body steam forces down, it is small to be lost, and property is stablized, and wettability power is strong, regenerates the advantages that easy, obtains excellent dehydrating effect, and
And regeneration energy consumption, operating cost are reduced, it has saved equipment and has been taken up space.Dry gas is dehydrated equalization point up to more than 95% after dehydration,
Dew point is below -20 DEG C.
Description of the drawings
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or it will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments described in application, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other attached drawings.
Fig. 1 show the principle schematic of gas dehydration systems in the utility model specific embodiment；
Fig. 2 show the principle schematic of gas dehydration systems in the utility model another specific embodiment.
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 part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected range.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the
One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
With reference to shown in Fig. 1, gas dehydration systems, including hypergravity machine 3, gas-liquid separator 1, heat exchanger 7,5 and of surge tank
Dehydration regeneration device 6, the gas vent of hypergravity machine 3 are communicated in gas-liquid separator 1, hypergravity machine 3, heat exchanger 7, surge tank 5,
The circulation loop for forming absorbent is sequentially communicated between dehydration regeneration device 6, heat exchanger 7, hypergravity machine 3, in hypergravity machine 3
The mixing that absorbent is dehydrated as single ionic liquid, the mixed solution of different kinds of ions liquid or ionic liquid and glycol solution is molten
Liquid.
Further, circulating pump 4 is provided on circulation loop.Further, circulating pump 4 is set to hypergravity machine 3
Between inlet and heat exchanger 7.
In one embodiment, hypergravity machine 3 include liquid distribution trough, packing layer, gas access, gas vent, into
Liquid mouth and leakage fluid dram, wherein gas access are to be passed through unstripped gas, and gas vent is communicated in gas-liquid separator 1, and inlet is passed through
Absorbent is simultaneously connected with liquid distribution trough, liquid distribution trough by sorbent injection on packing layer, leakage fluid dram will treated inhale
It receives agent feeding heat exchanger 7 to be heated, heat exchanger 7 connects successively with surge tank 5 and dehydration regeneration device 6, dehydration regeneration device 6
Absorbent is re-fed into heat exchanger 7 to cool down, the absorbent after cooling is re-fed into the inlet of hypergravity machine 3.
In one embodiment, the gas access of hypergravity machine 3 is provided with filter separator 2.
Preferably, dehydration regeneration device 6 is hypergravity machine (Fig. 1), flash tank (Fig. 2) or regenerator.
Preferably, the cation of ionic liquid is quaternary ammonium salt, quaternary phosphonium salt, pyridines or imidazoles；Ionic liquid
Anion for acetate, sulfuric acid ester, dimethyl phosphate radical ion, halogen, sulfonium methylide acid ion, tetrafluoroborate,
Hexafluoro-phosphate radical, Sulfonates or amine salt.
The dewatering of above-mentioned gas dewatering system, including：
(1), the unstripped gas that pressure is 0~10MPa is separated by filtration device 2 and removes wherein small liquid, solid impurity, by revolving
The side of rotated bed enters hypergravity machine 3；
(2), lean solution ionic liquid absorbent enters 3 central cavity of hypergravity machine by 3 upper end liquid distribution trough of hypergravity machine,
With being injected on packing layer for certain uniform flow, under the influence of centrifugal force, into filler liquid isolated, disperseed,
Liquid film, brin and drop are broken into, and is constantly updated along wire packing, greatly increases gas liquid interfacial area, gas-liquid counter current
Contact, greatly enhances dehydration efficiency.
(3), dewatered unstripped gas enters gas-liquid separator 1 by the outlet of 3 upper gas of hypergravity machine, isolates entrained with
Drop, purified gas enters downstream section.
(4), absorbing liquid is passed through from the leakage fluid dram outflow positioned at bottom, enters surge tank 5 after 7 heating of lean/rich liquid heat exchange, so
Afterwards, enter carry out dehydration regeneration from 6 upper end of dehydration regeneration device.
(5), the lean solution after regenerating is squeezed into hypergravity machine 3 by circulating pump 4 and is recycled after the cooling of lean/rich liquid heat exchanger 7
It uses.
In above-mentioned dewatering, unstripped gas can be natural gas, associated gas, conversion gas, synthesis gas, workshop and storehouse
Library air etc..
In above-mentioned dewatering, the volume ratio of absorbent and unstripped gas is preferably in hypergravity machine：1：(40~350).
The acceleration of gravity of hypergravity machine is preferably 10~500g.
In above-mentioned dewatering, when dehydration regeneration device 6 is hypergravity machine, acceleration of gravity is preferably 10~
500g。
In above-mentioned dewatering, the regeneration temperature of dehydration regeneration device 6 (hypergravity machine, flash tank or regenerator) is 50
~200 DEG C, regeneration pressure is 0.01~0.9atm.
Embodiment 1
Gas dewatering is carried out using above-mentioned dehydration device and technique, dehydration regeneration device 6 uses flash tank.
Unstripped gas 10m3/ h, pressure 0.1MPa, water content 25g/m in unstripped gas3, ionic liquid [EMIM] [ES] is as suction
Receive agent (>=98.5wt.%), ionic liquid dosage 0.1m3/ h, hypergravity machine rotating speed 600rpm, gas dew point is -20 after processing
DEG C hereinafter, dehydration the degree of balance more than 95%, lean solution concentration is more than 98% after regeneration.
Embodiment 2
Gas dewatering is carried out using above-mentioned dehydration device and technique, dehydration regeneration device 6 uses flash tank.
Unstripped gas 10m3/ h, pressure 0.1MPa, water content 25g/m in unstripped gas3, ionic liquid [EMIM] [ES] is as suction
Receive agent (>=98.5wt.%), ionic liquid dosage 0.1m3/ h, hypergravity machine rotating speed 800rpm, gas dew point is -23 after processing
DEG C hereinafter, dehydration the degree of balance more than 95%, lean solution concentration is more than 98% after regeneration.
Embodiment 3
Gas dewatering is carried out using above-mentioned dehydration device and technique, dehydration regeneration device 6 uses flash tank.
Unstripped gas 10m3/ h, pressure 0.1MPa, water content 25g/m in unstripped gas3, ionic liquid [BMIm] [Ac] is as suction
Receive agent (>=98.5wt.%), ionic liquid dosage 0.1m3/ h, hypergravity machine rotating speed 1000rpm, after processing gas dew point for-
24.5 DEG C hereinafter, be dehydrated the degree of balance more than 95%, lean solution concentration is more than 98% after regeneration.
Embodiment 4
Gas dewatering is carried out using above-mentioned dehydration device and technique, dehydration regeneration device 6 uses hypergravity machine.
Unstripped gas 10m3/ h, pressure 0.1MPa, water content 25g/m in unstripped gas3, ionic liquid [BMIm] [Ac] is as suction
Receive agent (>=98.5wt.%), ionic liquid dosage 0.1m3/ h, absorption plant hypergravity machine rotating speed 1000rpm, regenerating unit surpass
Gravity machine rotating speed 600rpm.Gas dew point is -30 DEG C hereinafter, being dehydrated the degree of balance more than 95%, lean solution is dense after regeneration after processing
Degree is more than 99%.
Reference examples 1
Other conditions are same as Example 1, and ionic liquid is replaced as absorbent using triethylene glycol.
Unstripped gas 10m3/ h, pressure 0.1MPa, water content 25g/m in unstripped gas3, triethylene glycol as absorbent (>=
99.8wt.%), triethylene glycol dosage 0.1m3/ h, hypergravity machine rotating speed 600rpm, gas dew point is less than -15 DEG C after processing.
Reference examples 2
Other conditions are same as Example 1, and hypergravity machine is replaced as absorption plant using packed tower.
Unstripped gas 10m3/ h, pressure 0.1MPa, water content 25g/m in unstripped gas3, using packed tower as absorption plant, from
Sub- liquid [BMIm] [Ac] is as absorbent (>=98.5wt.%), ionic liquid dosage 0.1m3/ h, after processing gas dew point for-
Less than 12 DEG C.
Reference examples 3
Other conditions are same as Example 1, and hypergravity machine is replaced as absorption plant using packed tower.It is replaced using triethylene glycol
Ionic liquid is changed as absorbent.
Unstripped gas 10m3/ h, pressure 0.1MPa, water content 25g/m in unstripped gas3, using packed tower as absorption plant, three
Glycol is as absorbent (>=99.8wt.%), triethylene glycol dosage 0.1m3/ h, gas dew point is less than -5 DEG C after processing.
In conclusion the absorption plant of Tthe utility model system uses hypergravity machine, and coupled ion dehydrate liquids is excellent
Gesture can ensure dehydration efficiency so that the dehydration degree of balance reaches more than 95%, and dry gas dew point is below -20 DEG C.With larger
Operating flexibility, when inlet gas fluctuation is larger, water content of working off one's feeling vent one's spleen is remained at below specified value.Greatly simplify gas dewatering
The characteristics of system makes full use of the mass-transfer efficiency height of hypergravity machine, floor space small, is easy into sled；Meet offshore platform, mountain
Requirement of the environment such as ground, interior for dehydration equipment size and performance, can realize heavy industrialization application.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (6)
1. a kind of gas dehydration systems, it is characterised in that including hypergravity machine, gas-liquid separator, heat exchanger, surge tank and dehydration
Regenerating unit, the gas vent of the hypergravity machine are communicated in the gas-liquid separator, the hypergravity machine, heat exchanger, buffering
The circulation loop for forming absorbent, the circulation loop are sequentially communicated between tank, dehydration regeneration device, heat exchanger, hypergravity machine
On be provided with circulating pump.
2. gas dehydration systems according to claim 1, it is characterised in that：Dehydration absorbent in the hypergravity machine is
The mixed solution of single ionic liquid, the mixed solution of different kinds of ions liquid or ionic liquid and glycol solution.
3. gas dehydration systems according to claim 1, it is characterised in that：The circulating pump is set to the hypergravity machine
Inlet and heat exchanger between.
4. gas dehydration systems according to claim 1, it is characterised in that：The gas access of the hypergravity machine is provided with
Filter separator.
5. gas dehydration systems according to claim 1, it is characterised in that：The dehydration regeneration device for hypergravity machine,
Flash tank or regenerator.
6. gas dehydration systems according to claim 2, it is characterised in that：The cation of the ionic liquid is quaternary ammonium salt
Class, quaternary phosphonium salt, pyridines or imidazoles；The anion of the ionic liquid is acetate, sulfuric acid ester, dimethyl phosphate root
Ion, halogen, sulfonium methylide acid ion, tetrafluoroborate, hexafluoro-phosphate radical, Sulfonates or amine salt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847839.8U CN207576090U (en) | 2017-07-13 | 2017-07-13 | Gas dehydration systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847839.8U CN207576090U (en) | 2017-07-13 | 2017-07-13 | Gas dehydration systems |
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| CN207576090U true CN207576090U (en) | 2018-07-06 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107213759A (en) * | 2017-07-13 | 2017-09-29 | 北京化工大学苏州（相城）研究院 | Gas dehydration systems and method |
| CN110124466A (en) * | 2019-05-16 | 2019-08-16 | 北京化工大学苏州（相城）研究院 | Compounding ionic liquid removes the method and system of water and carbon dioxide in gas phase simultaneously |
-
2017
- 2017-07-13 CN CN201720847839.8U patent/CN207576090U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107213759A (en) * | 2017-07-13 | 2017-09-29 | 北京化工大学苏州（相城）研究院 | Gas dehydration systems and method |
| CN110124466A (en) * | 2019-05-16 | 2019-08-16 | 北京化工大学苏州（相城）研究院 | Compounding ionic liquid removes the method and system of water and carbon dioxide in gas phase simultaneously |
| CN110124466B (en) * | 2019-05-16 | 2021-09-07 | 北京化工大学苏州（相城）研究院 | Method and system for simultaneously removing water and carbon dioxide in gas phase by compounding ionic liquid |
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