CN106698357A - Device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption - Google Patents
Device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption Download PDFInfo
- Publication number
- CN106698357A CN106698357A CN201611231282.1A CN201611231282A CN106698357A CN 106698357 A CN106698357 A CN 106698357A CN 201611231282 A CN201611231282 A CN 201611231282A CN 106698357 A CN106698357 A CN 106698357A
- Authority
- CN
- China
- Prior art keywords
- adsorption tower
- oxygen
- tower
- tank
- vacuum desorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001179 sorption measurement Methods 0.000 title claims abstract description 314
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 191
- 239000001301 oxygen Substances 0.000 title claims abstract description 189
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 189
- 238000003795 desorption Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003463 adsorbent Substances 0.000 claims abstract description 46
- 239000007789 gas Substances 0.000 claims description 40
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 28
- 229910001882 dioxygen Inorganic materials 0.000 claims description 28
- 238000010521 absorption reaction Methods 0.000 claims description 22
- 239000002808 molecular sieve Substances 0.000 claims description 13
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 13
- 230000008676 import Effects 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 5
- 239000010457 zeolite Substances 0.000 claims description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 230000001934 delay Effects 0.000 claims description 3
- SMBQBQBNOXIFSF-UHFFFAOYSA-N dilithium Chemical compound [Li][Li] SMBQBQBNOXIFSF-UHFFFAOYSA-N 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 24
- 230000009102 absorption Effects 0.000 description 16
- 229910052757 nitrogen Inorganic materials 0.000 description 12
- 238000004140 cleaning Methods 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- -1 air blower Chemical compound 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000011027 product recovery Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000007420 reactivation Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
- B01D53/053—Pressure swing adsorption with storage or buffer vessel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
- C01B13/027—Zeolites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
- C01B13/02—Preparation of oxygen
- C01B13/0229—Purification or separation processes
- C01B13/0248—Physical processing only
- C01B13/0259—Physical processing only by adsorption on solids
- C01B13/0262—Physical processing only by adsorption on solids characterised by the adsorbent
- C01B13/0274—Other molecular sieve materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40007—Controlling pressure or temperature swing adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40013—Pressurization
- B01D2259/40015—Pressurization with two sub-steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/40011—Methods relating to the process cycle in pressure or temperature swing adsorption
- B01D2259/40035—Equalization
- B01D2259/40037—Equalization with two sub-steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/40—Further details for adsorption processes and devices
- B01D2259/403—Further details for adsorption processes and devices using three beds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0028—Separation of the specific gas from gas mixtures containing a minor amount of this specific gas
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2210/00—Purification or separation of specific gases
- C01B2210/0043—Impurity removed
- C01B2210/0046—Nitrogen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Materials Engineering (AREA)
- Separation Of Gases By Adsorption (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
The invention discloses a device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption. The device comprises a blast blower, a vacuum pump, a first adsorption tower, a second adsorption tower, a third adsorption tower, a first equalizer tank, a second equalizer tank and an oxygen buffer tank, wherein an inlet of the first adsorption tower is connected with the inlets of the second adsorption tower and the third adsorption tower and is connected to the blast blower and the vacuum pump; an outlet of the first adsorption tower is connected to the outlets of the second adsorption tower and the third adsorption tower and is connected to the oxygen buffer tank; and the first adsorption tower, the second adsorption tower and the third adsorption tower are connected with the first equalizer tank and the second equalizer tank through pipes. By adopting the device and the method, the output and the yield of the oxygen can be improved, and the problems that an existing VPSA oxygen production process is low in oxygen utilization rate, low in adsorbent utilization rate and high in equipment cost are solved.
Description
Technical field
The present invention relates to the use of the technical field that pressure swing adsorption method prepares oxygen, more particularly to a kind of three towers low pressure adsorbent is true
The apparatus and method that empty desorption prepares oxygen.
Background technology
Main component in air is nitrogen and oxygen, and using under environment temperature, nitrogen and oxygen are in molecular sieve in air
On absorption property it is different（Oxygen can by and nitrogen is adsorbed）, appropriate technical process is designed, nitrogen and oxygen can be made
Separate and oxygen is obtained.Nitrogen adsorption capacity over a molecular sieve is stronger than oxygen（Nitrogen is strong with the active force of molecular sieve surface ion）,
When air under pressurised conditions by the adsorbent bed equipped with zeolite adsorbent when, nitrogen by molecular sieve adsorption, oxygen because
Absorption is less, is enriched with and flowed out adsorbent bed in the gas phase, oxygen and nitrogen separation is obtained oxygen.When molecular sieve adsorption nitrogen
Gas is to close to after saturation, blowing air is stopped and reduces the pressure of adsorbent bed, and the nitrogen of molecular sieve adsorption just can be desorbed, point
Son sieve is regenerated and repeatable utilization.
Small-sized oxygen generating plant all uses pressure swing adsorption method currently on the market（PSA）, it is a kind of using many sky solid absorptions
Agent certain pressure, at a temperature of, to different component in mixed gas have selection absorption characteristic, realize the separation of mixed gas
Technology.Low pressure adsorbent vacuum desorption（VPSA）The adsorptive pressure superatmospheric of method, typically in 40~60Kpa, VPSA methods are mesh
Preceding to use most one kind oxygen techniques processed, oxygen power consumption processed is general in 0.15~0.2KWh/m3, the m of unit scale 0~20003/h。
Adsorbent reactivation effect is good in VPSA methods, can effectively reduce flushing tolerance, reduces product gas loss, improves product recovery rate, energy
Consumption is relatively low.
But current VPSA oxygen generating plants have the following disadvantages：As pressure oscillation is big, high equipment cost, product oxygen concentration
Low, oxygen yield is low, can not continuously produce oxygen..
The content of the invention
The embodiment of the present invention is expected to provide the apparatus and method that a kind of three towers low pressure adsorbent vacuum desorption prepares oxygen, can
Improve oxygen output and yield.
What the technical scheme of the embodiment of the present invention was realized in：
A kind of three towers low pressure adsorbent vacuum desorption prepares the device of oxygen, including air blower, vavuum pump, the first adsorption tower, second
Adsorption tower, the 3rd adsorption tower, the first equalizer tank, the second equalizer tank and oxygen surge tank, wherein the import of the first adsorption tower, second
The import of adsorption tower and the 3rd adsorption tower is connected, and is connected to air blower and vavuum pump, the outlet of the first adsorption tower, the second absorption
The outlet of tower and the 3rd adsorption tower is connected, and is connected to oxygen surge tank, the first adsorption tower, the second adsorption tower and the 3rd adsorption tower
It is connected with the first equalizer tank and the second equalizer tank by pipeline, wherein,
Air blower is input into the first adsorption tower, the second adsorption tower and the 3rd adsorption tower after being used to compress raw air by pipeline；
Vavuum pump is used to extract the gas in the first adsorption tower, the second adsorption tower and the 3rd adsorption tower；
First adsorption tower, the second adsorption tower and the 3rd adsorption tower are used to adsorb and produce oxygen, forward bleed off pressure, vacuum desorption, clean and fill
Pressure, output oxygen rich gas to the first equalizer tank, output Poor oxygen gas to the second equalizer tank, output oxygen to oxygen surge tank；
First equalizer tank is used to store the oxygen rich gas from the input of the first adsorption tower, the second adsorption tower and the 3rd adsorption tower, and defeated
Go out carries out pressurising to the first adsorption tower, the second adsorption tower and the 3rd adsorption tower；
Second equalizer tank is used to store the Poor oxygen gas from the input of the first adsorption tower, the second adsorption tower and the 3rd adsorption tower, and defeated
Go out carries out pressurising to the first adsorption tower, the second adsorption tower and the 3rd adsorption tower；
Oxygen surge tank be used for collect from the first adsorption tower, the second adsorption tower and the 3rd adsorption tower input oxygen, and export to
First adsorption tower, the second adsorption tower and the 3rd adsorption tower are cleaned.
Preferably, also including 25 valves.
Preferably, 25 valves are pneumatic switching valves.
Preferably, also including 3 check-valves, one end of 3 check-valves be respectively communicated with the first adsorption tower, the second adsorption tower and
3rd adsorption tower, other end connection oxygen surge tank.
Preferably, also including programmable logic controller (PLC), programmable logic controller (PLC) is used to export electric signal control valve.
Embodiments of the invention also provide a kind of method that three towers low pressure adsorbent vacuum desorption prepares oxygen, including following step
Suddenly：
Raw air enters the first adsorption tower by air blower, and the first adsorption tower is adsorbed, and acquisition oxygen is conveyed to oxygen and delays
Tank is rushed, the second adsorption tower is vacuumized with stage vavuum pump, carry out vacuum desorption, the 3rd adsorption tower adsorbent saturation, drum
Blower fan stops, and the 3rd adsorption tower is by oxygen rich gas therein along putting to the first equalizer tank；
First adsorption tower continues to adsorb product oxygen, obtains oxygen from oxygen surge tank with the adsorption tower of stage second and is cleaned, and the 3rd
Adsorption tower is by Poor oxygen gas therein along putting to the second equalizer tank；
First adsorption tower continues to adsorb product oxygen, and obtaining Poor oxygen gas from the second equalizer tank with the adsorption tower of stage second carries out pressurising,
Vavuum pump is vacuumized to the 3rd adsorption tower, carries out vacuum desorption；
First adsorption tower continues to adsorb product oxygen, and obtaining oxygen rich gas from the first equalizer tank with the adsorption tower of stage second carries out pressurising,
And air pressurising is utilized, the 3rd adsorption tower proceeds vacuum desorption；
First adsorption tower adsorbent saturation, air blower stops, and the first adsorption tower presses suitable the putting to first of oxygen rich gas therein
Tank, the second adsorption tower is entered with stage raw air by air blower, and the second adsorption tower is adsorbed, and obtains oxygen conveying oxygen supply
Gas surge tank, the 3rd adsorption tower proceeds vacuum desorption；
By Poor oxygen gas therein along putting to the second equalizer tank, the second adsorption tower continues to adsorb product oxygen first adsorption tower, and the 3rd inhales
Attached tower obtains oxygen and is cleaned from oxygen surge tank；
Vavuum pump is vacuumized to the first adsorption tower, carries out vacuum desorption, is continued to adsorb with the adsorption tower of stage second and is produced oxygen, the
Three adsorption towers obtain Poor oxygen gas and carry out pressurising from the second equalizer tank；
First adsorption tower proceeds vacuum desorption, continues to adsorb with the adsorption tower of stage second and produces oxygen, and the 3rd adsorption tower is from first
Equalizer tank obtains oxygen rich gas and carries out pressurising, and utilizes air pressurising；
First adsorption tower proceeds vacuum desorption, and with stage the second adsorption tower adsorbent saturation, air blower stops, the second absorption
By oxygen rich gas therein along putting to the first equalizer tank, raw air enters the 3rd adsorption tower, the 3rd absorption to tower by air blower
Tower is adsorbed, and is obtained oxygen and is conveyed to oxygen surge tank；
First adsorption tower obtains oxygen and is cleaned from oxygen surge tank, with the adsorption tower of stage second that Poor oxygen gas therein are suitable
Put to the second equalizer tank, the 3rd adsorption tower continues to adsorb product oxygen；
First adsorption tower obtains Poor oxygen gas and carries out pressurising from the second equalizer tank, and the second adsorption tower is taken out with stage vavuum pump
Vacuum, carries out vacuum desorption, and the 3rd adsorption tower continues to adsorb product oxygen；
First adsorption tower obtains oxygen rich gas and carries out pressurising from the first equalizer tank, and utilizes air pressurising, with stage vavuum pump after
Continuous to carry out vacuum desorption, the 3rd adsorption tower continues to adsorb product oxygen；
Repeat above step.
Preferably, when the first adsorption tower, the second adsorption tower and the 3rd adsorption tower are adsorbed, air pressure range is arrived for 40 kPas
50 kPas；First adsorption tower, the second adsorption tower and the 3rd adsorption tower are completed along when putting, and air pressure range is 5 kPas to 20 kPas；The
When one adsorption tower, the second adsorption tower and the 3rd adsorption tower carry out vacuum desorption, air pressure range is -40 kPas to -50 kPas；First
When adsorption tower, the second adsorption tower and the 3rd adsorption tower complete pressurising, air pressure range is -20 kPas to 10 kPas.
Preferably, the oxygen concentration of oxygen rich gas is 80% to 90%, and the oxygen concentration of Poor oxygen gas is 60% to 70%.
Preferably, the adsorbent in the first adsorption tower, the second adsorption tower and the 3rd adsorption tower is alundum (Al2O3), 13X point
Son sieve, lithium dimer sieve and/or zeolite molecular sieve.
The apparatus and method that the three tower low pressure adsorbent vacuum desorptions that the embodiment of the present invention is provided prepare oxygen, can divide from air
It is 80%~93% from purity（Percent by volume）Oxygen, oxygen yield can reach 70%~80%, and production scale is adapted to
The medium-and-large-sized oxygen generating plant of 3000Nm3/h to 7000Nm3/h.Solve that original VPSA oxygen technical oxygen utilization rate is low, unit
Yield adsorbent amount is big（Adsorbent utilization rate is low）, the equipment manufacturing cost influence VPSA technology applications such as high shortcoming.
Brief description of the drawings
Fig. 1 is the structural representation of the device that three towers low pressure adsorbent vacuum desorption provided in an embodiment of the present invention prepares oxygen
Figure.
Specific embodiment
In order to illustrate more clearly the embodiments of the present invention and technical scheme, below in conjunction with drawings and Examples to the present invention
Technical scheme be described in detail, it is clear that described embodiment is a part of embodiment of the invention, rather than complete
Portion's embodiment.Based on embodiments of the invention, those of ordinary skill in the art are obtained on the premise of not paying creative work
The every other embodiment for obtaining, belongs to the scope of protection of the invention.
The technical scheme is that a kind of three towers VPSA of design prepares the device of oxygen, including 3 adsorption towers, 1 drum
3 adsorption tower combinations are carried out pressure-variable adsorption, in a week by blower fan, 1 vavuum pump, 2 equalizer tanks and 1 oxygen surge tank
In phase, each adsorption tower experience absorption produce oxygen, forward bleed off pressure, vacuum desorption, cleaning, five steps such as pressurising, with for the moment
Carve 3 adsorption towers and be respectively at the different operational phases.One adsorption tower absorption, another adsorption tower desorption and regeneration, the 3rd
Adsorption tower carries out cleaning pressurising, and each adsorption tower differs an adsorption step.Unless otherwise instructed, it is used in the embodiment of the present invention
Pressure is all gauge pressure commonly used in the art.
Fig. 1 is the structural representation of the device that three towers low pressure adsorbent vacuum desorption provided in an embodiment of the present invention prepares oxygen
Figure.As shown in figure 1, the device that the three towers low pressure adsorbent vacuum desorption prepares oxygen includes air blower G, vavuum pump V, the first absorption
Tower A, the second adsorption tower B, the 3rd adsorption tower C, the first equalizer tank V1, the second equalizer tank V2, oxygen surge tank V3,3 check-valves
J1, J2 and J3, and 25 valves A1-A6, B1-B6, C1-C6, K1, K2, A7, A8, B7, B8 and C7.Wherein this 25 valves
A1-A6, B1-B6, C1-C6, K1, K2, A7, A8, B7, B8 and C7 are pneumatic switching valves.One end of A7 and A8 and the first equalizer tank
Connection, one end of B7 and B8 connects with the second equalizer tank, and one end of C7 connects with oxygen surge tank.Two suctions in the present embodiment
Attached tower diameter 2000mm, height 3200mm, using the air blower of model 65m3/h.
The import of the first adsorption tower A, the second adsorption tower B imports are connected with the import of the 3rd adsorption tower C, and are connected to air blast
Machine G and vavuum pump V, the outlet of the first adsorption tower A, the outlet of the second adsorption tower B are connected with the outlet of the 3rd adsorption tower C, and even
Oxygen surge tank V3, the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C are connected to by pipeline and the first equalizer tank V1 and
Second equalizer tank V2 is connected.
Air blower G is input into the first adsorption tower A, the second adsorption tower B and the 3rd absorption after raw air is compressed by pipeline
Tower C.
Vavuum pump V can extract the gas in the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C.
First adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C be respectively completed absorption produce oxygen, forward bleed off pressure, Vacuum solutions
Inhale, clean and pressurising, output oxygen rich gas to the first equalizer tank V1, output Poor oxygen gas to the second equalizer tank V2 export oxygen
To oxygen surge tank V3.
The oxygen rich gas that first equalizer tank V1 storages are input into from the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C,
And export and carry out pressurising to the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C.
The Poor oxygen gas that second equalizer tank V2 storages are input into from the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C,
And export and carry out pressurising to the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C.
Oxygen surge tank V3 collects the oxygen from the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C input, and defeated
Go out and cleaned to the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C.
Check-valves J1, J2 and J3 one end is respectively communicated with the first adsorption tower A, the second adsorption tower B and the 3rd adsorption tower C, another
End connects oxygen surge tank V3.
Also include programmable logic controller (PLC)（PLC）, programmable logic controller (PLC) can export electric signal and control each valve
Door A1-A6, B1-B6, C1-C6, K1, K2.The switching of three each steps of adsorption tower is to open or close to realize by program-controlled valve,
Program input PLC, PLC the output electric signal control program-controlled valve that will be designed, opens or closes program-controlled valve, realizes each step
Switching.
Three adsorption towers all experience absorption produce oxygen, forward bleed off pressure, vacuum desorption, cleaning, five steps such as pressurising.
Adsorption step is：Raw air enters air blower after blower inlet filter removal mechanical admixture, in air blast
After being compressed in machine, absorption tower bottom is entered by pipeline and pneumatic switch valve, adsorption tower is pressurized as 40 kPas to 50 kPas,
The adsorbent absorption of moisture and the adsorbed tower bottom of carbon dioxide, nitrogen is inhaled during raw air rises in adsorption tower
It is attached, so as to obtain oxygen at the top of adsorption tower.
Adsorbent in adsorption tower is preferential to select including alundum (Al2O3), 13X molecular sieves, lithium dimer sieve, zeolite molecular sieve etc.
Use zeolite molecular sieve.
Forward bleeding off pressure step is：When adsorbent absorption nitrogen is close to saturation, stop entering air to adsorption tower, then adsorption tower
Stop producing oxygen, deflated from the port of export, along putting to equalizer tank V1, Poor oxygen gas make adsorption tower to oxygen rich gas along putting to equalizer tank V2
Interior pressure is down to 5 kPas to 20 kPas.Wherein the oxygen concentration of oxygen rich gas is 80% to 90%, and the oxygen concentration of Poor oxygen gas is
60% to 70%.
Vacuum desorption step is：By the switching of valve, air blower by evacuated pressure in adsorption tower to -40 kPas to -
50 kPas, desorb adsorbent water, carbon dioxide, nitrogen, the molecular sieve in regenerative adsorption tower.
Cleaning step is：When it is -40 kPas to -50 kPas to adsorb tower pressure interior force, cleaning step is started simultaneously at, using oxygen
Product gas in gas surge tank are carried out inversely to adsorption tower（From the port of export air inlet of adsorption tower, from entrance point outflow）Purging,
The adsorbent of cleaning and regeneration, adsorbs tower pressure interior force and is held essentially constant during cleaning.
Pressurising step is：After cleaning step terminates, adsorption tower is risen using the pressure and atmospheric pressure in equalizer tank
Pressure, makes pressure rise to -20 kPas to 10 kPas.
After the completion of pressurising step, the circulation in next pressure-variable adsorption cycle is initially entered.It is characterized in carrying out cleaning step
When rapid, still vacuumized, the pressure in adsorption tower is basically unchanged.
It is detailed below and prepares oxygen unit to prepare using three tower low pressure adsorbent vacuum desorptions in above-described embodiment
The process of oxygen.The three towers low pressure adsorbent vacuum desorption（VPSA）The flow for preparing oxygen is comprised the following steps：
Raw air enters the first adsorption tower by air blower, and the first adsorption tower is adsorbed, and acquisition oxygen is conveyed to oxygen and delays
Tank is rushed, the second adsorption tower is vacuumized with stage vavuum pump, carry out vacuum desorption, the 3rd adsorption tower adsorbent saturation, drum
Blower fan stops, and the 3rd adsorption tower is by oxygen rich gas therein along putting to the first equalizer tank.
First adsorption tower continues to adsorb product oxygen, obtains oxygen from oxygen surge tank with the adsorption tower of stage second and is cleaned,
3rd adsorption tower is by Poor oxygen gas therein along putting to the second equalizer tank.
First adsorption tower continues to adsorb product oxygen, obtains Poor oxygen gas from the second equalizer tank with the adsorption tower of stage second and is filled
Pressure, vavuum pump is vacuumized to the 3rd adsorption tower, carries out vacuum desorption.
First adsorption tower continues to adsorb product oxygen, obtains oxygen rich gas from the first equalizer tank with the adsorption tower of stage second and is filled
Pressure, and air pressurising is utilized, the 3rd adsorption tower proceeds vacuum desorption.
First adsorption tower adsorbent saturation, air blower stops, and the first adsorption tower is by oxygen rich gas therein along putting to first
Equalizer tank, the second adsorption tower is entered with stage raw air by air blower, and the second adsorption tower is adsorbed, and obtains oxygen conveying
Proceed vacuum desorption to oxygen surge tank, the 3rd adsorption tower.
By Poor oxygen gas therein along putting to the second equalizer tank, the second adsorption tower continues to adsorb product oxygen first adsorption tower, the
Three adsorption towers obtain oxygen and are cleaned from oxygen surge tank.
Vavuum pump is vacuumized to the first adsorption tower, carries out vacuum desorption, is continued to adsorb with the adsorption tower of stage second and is produced
Oxygen, the 3rd adsorption tower obtains Poor oxygen gas and carries out pressurising from the second equalizer tank.
First adsorption tower proceeds vacuum desorption, with the adsorption tower of stage second continue adsorb produce oxygen, the 3rd adsorption tower from
First equalizer tank obtains oxygen rich gas and carries out pressurising, and utilizes air pressurising.
First adsorption tower proceeds vacuum desorption, and with stage the second adsorption tower adsorbent saturation, air blower stops, and second
By oxygen rich gas therein along putting to the first equalizer tank, raw air enters the 3rd adsorption tower, the 3rd to adsorption tower by air blower
Adsorption tower is adsorbed, and is obtained oxygen and is conveyed to oxygen surge tank.
First adsorption tower obtains oxygen and is cleaned from oxygen surge tank, with the adsorption tower of stage second by poor oxygen therein
Along putting to the second equalizer tank, the 3rd adsorption tower continues to adsorb product oxygen body.
First adsorption tower obtains Poor oxygen gas and carries out pressurising from the second equalizer tank, and the second adsorption tower is entered with stage vavuum pump
Row is vacuumized, and carries out vacuum desorption, and the 3rd adsorption tower continues to adsorb product oxygen.
First adsorption tower obtains oxygen rich gas and carries out pressurising from the first equalizer tank, and utilizes air pressurising, same to stage vacuum
Pump proceeds vacuum desorption, and the 3rd adsorption tower continues to adsorb product oxygen.
Above step is repeated, is periodically switched, enable a device to steadily produce oxygen.Qualified products oxygen is obtained, then through oxygen
After compressor compresses, it is sent to by the oxygen pressure for meeting user's requirement and uses gas point.
Above-mentioned three towers low pressure adsorbent vacuum desorption is prepared in oxygen unit, and three adsorption towers are separate, using equalizer tank
Collect Poor oxygen gas to be cleaned, pressurising is carried out to adsorption tower simultaneously using equalizer tank and air, filled with traditional VPSA oxygen
Put and compare, maximum feature is to set two equalizer tanks, and the gas that will forward bleed off pressure is collected and distinguishes, and improves oxygen utilization
Rate, up to more than 7000Nm3/h, oxygen concentration can reach 80%~93% to the device maximum production, and oxygen yield 70% ~ 80% is real
Existing 10% ~ 20% oxygen production rate is improved.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.
Claims (9)
1. a kind of three towers low pressure adsorbent vacuum desorption prepares the device of oxygen, it is characterised in that including air blower, vavuum pump,
One adsorption tower, the second adsorption tower, the 3rd adsorption tower, the first equalizer tank, the second equalizer tank and oxygen surge tank, wherein the first absorption
The import of the import of tower, the second adsorption tower and the 3rd adsorption tower is connected, and is connected to air blower and vavuum pump, the first adsorption tower
The outlet of outlet, the second adsorption tower and the 3rd adsorption tower is connected, and is connected to oxygen surge tank, the first adsorption tower, the second absorption
Tower and the 3rd adsorption tower are connected by pipeline with the first equalizer tank and the second equalizer tank, wherein,
Air blower is input into the first adsorption tower, the second adsorption tower and the 3rd adsorption tower after being used to compress raw air by pipeline；
Vavuum pump is used to extract the gas in the first adsorption tower, the second adsorption tower and the 3rd adsorption tower；
First adsorption tower, the second adsorption tower and the 3rd adsorption tower are used to adsorb and produce oxygen, forward bleed off pressure, vacuum desorption, clean and fill
Pressure, output oxygen rich gas to the first equalizer tank, output Poor oxygen gas to the second equalizer tank, output oxygen to oxygen surge tank；
First equalizer tank is used to store the oxygen rich gas from the input of the first adsorption tower, the second adsorption tower and the 3rd adsorption tower, and defeated
Go out carries out pressurising to the first adsorption tower, the second adsorption tower and the 3rd adsorption tower；
Second equalizer tank is used to store the Poor oxygen gas from the input of the first adsorption tower, the second adsorption tower and the 3rd adsorption tower, and defeated
Go out carries out pressurising to the first adsorption tower, the second adsorption tower and the 3rd adsorption tower；
Oxygen surge tank be used for collect from the first adsorption tower, the second adsorption tower and the 3rd adsorption tower input oxygen, and export to
First adsorption tower, the second adsorption tower and the 3rd adsorption tower are cleaned.
2. a kind of three towers low pressure adsorbent vacuum desorption according to claim 1 prepares the device of oxygen, it is characterised in that also
Including 25 valves.
3. a kind of three towers low pressure adsorbent vacuum desorption according to claim 2 prepares the device of oxygen, it is characterised in that institute
It is pneumatic switching valve to state 25 valves.
4. a kind of three towers low pressure adsorbent vacuum desorption according to claim 2 prepares the device of oxygen, it is characterised in that also
Including 3 check-valves, one end of 3 check-valves is respectively communicated with the first adsorption tower, the second adsorption tower and the 3rd adsorption tower, the other end
Connection oxygen surge tank.
5. a kind of three towers low pressure adsorbent vacuum desorption according to claim 4 prepares the device of oxygen, it is characterised in that also
Including programmable logic controller (PLC), programmable logic controller (PLC) is used to export electric signal control valve.
6. a kind of method that three towers low pressure adsorbent vacuum desorption prepares oxygen, it is characterised in that comprise the following steps：
Raw air enters the first adsorption tower by air blower, and the first adsorption tower is adsorbed, and acquisition oxygen is conveyed to oxygen and delays
Tank is rushed, the second adsorption tower is vacuumized with stage vavuum pump, carry out vacuum desorption, the 3rd adsorption tower adsorbent saturation, drum
Blower fan stops, and the 3rd adsorption tower is by oxygen rich gas therein along putting to the first equalizer tank；
First adsorption tower continues to adsorb product oxygen, obtains oxygen from oxygen surge tank with the adsorption tower of stage second and is cleaned, and the 3rd
Adsorption tower is by Poor oxygen gas therein along putting to the second equalizer tank；
First adsorption tower continues to adsorb product oxygen, and obtaining Poor oxygen gas from the second equalizer tank with the adsorption tower of stage second carries out pressurising,
Vavuum pump is vacuumized to the 3rd adsorption tower, carries out vacuum desorption；
First adsorption tower continues to adsorb product oxygen, and obtaining oxygen rich gas from the first equalizer tank with the adsorption tower of stage second carries out pressurising,
And air pressurising is utilized, the 3rd adsorption tower proceeds vacuum desorption；
First adsorption tower adsorbent saturation, air blower stops, and the first adsorption tower presses suitable the putting to first of oxygen rich gas therein
Tank, the second adsorption tower is entered with stage raw air by air blower, and the second adsorption tower is adsorbed, and obtains oxygen conveying oxygen supply
Gas surge tank, the 3rd adsorption tower proceeds vacuum desorption；
By Poor oxygen gas therein along putting to the second equalizer tank, the second adsorption tower continues to adsorb product oxygen first adsorption tower, and the 3rd inhales
Attached tower obtains oxygen and is cleaned from oxygen surge tank；
Vavuum pump is vacuumized to the first adsorption tower, carries out vacuum desorption, is continued to adsorb with the adsorption tower of stage second and is produced oxygen, the
Three adsorption towers obtain Poor oxygen gas and carry out pressurising from the second equalizer tank；
First adsorption tower proceeds vacuum desorption, continues to adsorb with the adsorption tower of stage second and produces oxygen, and the 3rd adsorption tower is from first
Equalizer tank obtains oxygen rich gas and carries out pressurising, and utilizes air pressurising；
First adsorption tower proceeds vacuum desorption, and with stage the second adsorption tower adsorbent saturation, air blower stops, the second absorption
By oxygen rich gas therein along putting to the first equalizer tank, raw air enters the 3rd adsorption tower, the 3rd absorption to tower by air blower
Tower is adsorbed, and is obtained oxygen and is conveyed to oxygen surge tank；
First adsorption tower obtains oxygen and is cleaned from oxygen surge tank, with the adsorption tower of stage second that Poor oxygen gas therein are suitable
Put to the second equalizer tank, the 3rd adsorption tower continues to adsorb product oxygen；
First adsorption tower obtains Poor oxygen gas and carries out pressurising from the second equalizer tank, and the second adsorption tower is taken out with stage vavuum pump
Vacuum, carries out vacuum desorption, and the 3rd adsorption tower continues to adsorb product oxygen；
First adsorption tower obtains oxygen rich gas and carries out pressurising from the first equalizer tank, and utilizes air pressurising, with stage vavuum pump after
Continuous to carry out vacuum desorption, the 3rd adsorption tower continues to adsorb product oxygen；
Repeat above step.
7. the method that a kind of three towers low pressure adsorbent vacuum desorption according to claim 6 prepares oxygen, it is characterised in that the
When one adsorption tower, the second adsorption tower and the 3rd adsorption tower are adsorbed, air pressure range is 40 kPas to 50 kPas；First absorption
Tower, the second adsorption tower and the 3rd adsorption tower are completed along when putting, and air pressure range is 5 kPas to 20 kPas；First adsorption tower, second inhale
When attached tower and the 3rd adsorption tower carry out vacuum desorption, air pressure range is -40 kPas to -50 kPas；First adsorption tower, the second absorption
When tower and the 3rd adsorption tower complete pressurising, air pressure range is -20 kPas to 10 kPas.
8. the method that a kind of three towers low pressure adsorbent vacuum desorption according to claim 7 prepares oxygen, it is characterised in that rich
The oxygen concentration of carrier of oxygen is 80% to 90%, and the oxygen concentration of Poor oxygen gas is 60% to 70%.
9. the method that a kind of three towers low pressure adsorbent vacuum desorption according to claim 6 prepares oxygen, it is characterised in that the
Adsorbent in one adsorption tower, the second adsorption tower and the 3rd adsorption tower be alundum (Al2O3), 13X molecular sieves, lithium dimer sieve and/or
Zeolite molecular sieve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231282.1A CN106698357A (en) | 2016-12-28 | 2016-12-28 | Device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611231282.1A CN106698357A (en) | 2016-12-28 | 2016-12-28 | Device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106698357A true CN106698357A (en) | 2017-05-24 |
Family
ID=58902808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611231282.1A Pending CN106698357A (en) | 2016-12-28 | 2016-12-28 | Device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106698357A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200307A (en) * | 2017-07-25 | 2017-09-26 | 杨炯良 | A kind of three tower vacuum pressure swing adsorption system for oxygen production and its method for producing oxygen through |
| CN107243225A (en) * | 2017-07-25 | 2017-10-13 | 杨炯良 | A kind of vacuum pressure swing adsorption system for oxygen production and its method for producing oxygen through with equalizer tank |
| CN107261755A (en) * | 2017-07-25 | 2017-10-20 | 杨炯良 | A kind of vacuum pressure swing adsorption system for oxygen production and its method for producing oxygen through with product gas transition tank |
| CN107311113A (en) * | 2017-08-08 | 2017-11-03 | 威海东兴电子有限公司 | Small multiple bobbin winder bracket vacuum desorption method for producing oxygen through |
| CN107511026A (en) * | 2017-10-19 | 2017-12-26 | 成都巨涛油气工程有限公司 | A kind of multi-tower variable pressure adsorption classification flusher and method |
| CN113457373A (en) * | 2021-07-23 | 2021-10-01 | 成都华西堂投资有限公司 | VPSA oxygen generation process and system for efficiently utilizing adsorbent |
| CN117619100A (en) * | 2023-11-27 | 2024-03-01 | 杭州普菲科空分设备有限公司 | Micro-positive pressure three-tower VPSA oxygen and nitrogen production system and preparation method thereof |
| WO2024059964A1 (en) * | 2022-09-19 | 2024-03-28 | 重庆冲能动力机械有限公司 | Pressure swing adsorption gas separation system driven by turbines, and separation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08301604A (en) * | 1995-05-01 | 1996-11-19 | Showa Eng Kk | Psa for low-concentration oxygen |
| CN2448438Y (en) * | 2000-07-27 | 2001-09-19 | 上海绿的科技有限公司 | Improved double-tower pressure-changing adsorption oxygen generator |
| CN1814543A (en) * | 2005-02-04 | 2006-08-09 | 李宁 | Variable-pressure adsorption oxygenerating device |
| US20080006151A1 (en) * | 2006-07-06 | 2008-01-10 | Mohamed Safdar Allie Baksh | Vacuum pressure swing adsorption process and enhanced oxygen recovery |
| CN102091500A (en) * | 2011-01-19 | 2011-06-15 | 上海穗杉实业有限公司 | Variable pressure absorption oxygen and nitrogen combined separation method and device |
| CN103058144A (en) * | 2013-01-08 | 2013-04-24 | 北京北大先锋科技有限公司 | Vacuum pressure swing adsorption oxygen generation system and control method thereof |
-
2016
- 2016-12-28 CN CN201611231282.1A patent/CN106698357A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08301604A (en) * | 1995-05-01 | 1996-11-19 | Showa Eng Kk | Psa for low-concentration oxygen |
| CN2448438Y (en) * | 2000-07-27 | 2001-09-19 | 上海绿的科技有限公司 | Improved double-tower pressure-changing adsorption oxygen generator |
| CN1814543A (en) * | 2005-02-04 | 2006-08-09 | 李宁 | Variable-pressure adsorption oxygenerating device |
| US20080006151A1 (en) * | 2006-07-06 | 2008-01-10 | Mohamed Safdar Allie Baksh | Vacuum pressure swing adsorption process and enhanced oxygen recovery |
| CN102091500A (en) * | 2011-01-19 | 2011-06-15 | 上海穗杉实业有限公司 | Variable pressure absorption oxygen and nitrogen combined separation method and device |
| CN103058144A (en) * | 2013-01-08 | 2013-04-24 | 北京北大先锋科技有限公司 | Vacuum pressure swing adsorption oxygen generation system and control method thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200307A (en) * | 2017-07-25 | 2017-09-26 | 杨炯良 | A kind of three tower vacuum pressure swing adsorption system for oxygen production and its method for producing oxygen through |
| CN107243225A (en) * | 2017-07-25 | 2017-10-13 | 杨炯良 | A kind of vacuum pressure swing adsorption system for oxygen production and its method for producing oxygen through with equalizer tank |
| CN107261755A (en) * | 2017-07-25 | 2017-10-20 | 杨炯良 | A kind of vacuum pressure swing adsorption system for oxygen production and its method for producing oxygen through with product gas transition tank |
| CN107200307B (en) * | 2017-07-25 | 2023-07-04 | 杨炯良 | Three-tower vacuum pressure swing adsorption oxygen generation system and oxygen generation method thereof |
| CN107261755B (en) * | 2017-07-25 | 2023-07-04 | 杨炯良 | Vacuum pressure swing adsorption oxygen generation system with product gas transition tank and oxygen generation method thereof |
| CN107243225B (en) * | 2017-07-25 | 2023-07-25 | 杨炯良 | Vacuum pressure swing adsorption oxygen generation system with pressure equalizing tank and oxygen generation method thereof |
| CN107311113A (en) * | 2017-08-08 | 2017-11-03 | 威海东兴电子有限公司 | Small multiple bobbin winder bracket vacuum desorption method for producing oxygen through |
| CN107511026A (en) * | 2017-10-19 | 2017-12-26 | 成都巨涛油气工程有限公司 | A kind of multi-tower variable pressure adsorption classification flusher and method |
| CN113457373A (en) * | 2021-07-23 | 2021-10-01 | 成都华西堂投资有限公司 | VPSA oxygen generation process and system for efficiently utilizing adsorbent |
| WO2024059964A1 (en) * | 2022-09-19 | 2024-03-28 | 重庆冲能动力机械有限公司 | Pressure swing adsorption gas separation system driven by turbines, and separation method |
| CN117619100A (en) * | 2023-11-27 | 2024-03-01 | 杭州普菲科空分设备有限公司 | Micro-positive pressure three-tower VPSA oxygen and nitrogen production system and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106698357A (en) | Device and method for preparing oxygen through three-tower low pressure adsorption and vacuum desorption | |
| CN101139088B (en) | Rotating molecular sieve minisize pressure swing adsorption oxygen making device | |
| CN104192807B (en) | A kind of oxygen generating plant system and technical process thereof | |
| CN103058144B (en) | Vacuum pressure swing adsorption oxygen generation system and control method thereof | |
| CN106672906A (en) | Apparatus and method for preparing oxygen through two tower low pressure adsorption and vacuum desorption | |
| CN102311098B (en) | Pressure varying adsorption oxygen preparing device with back blowing heating tank | |
| CN206624641U (en) | A kind of two towers low pressure adsorbent vacuum desorption prepares the device of oxygen | |
| CN101531342B (en) | Device and method for producing oxygen by means of pressure swing adsorption (PSA) by five beds | |
| CN101700877A (en) | Process method for making nitrogen by pressure swing adsorption | |
| CN106744696A (en) | The apparatus and method that a kind of four towers low pressure adsorbent vacuum desorption prepares oxygen | |
| WO2021207909A1 (en) | Method of movable pressure swing adsorption oxygen production device | |
| CN208829260U (en) | Pressure swing adsorption hydrogen production system | |
| CN111989149A (en) | Method of movable pressure swing adsorption oxygen production device | |
| CN206624642U (en) | A kind of three towers low pressure adsorbent vacuum desorption prepares the device of oxygen | |
| CN207845155U (en) | A kind of five towers low pressure adsorbent vacuum desorption prepares the device of oxygen | |
| CN206624639U (en) | A kind of seven towers low pressure adsorbent vacuum desorption prepares the device of oxygen | |
| CN106629610A (en) | Device and method for preparing oxygen by vacuum pressure swing adsorption (VPSA) through five towers | |
| CN202519026U (en) | Special oxygen generating device for ozone generator | |
| CN106829868A (en) | The apparatus and method that a kind of single column low pressure adsorbent vacuum desorption prepares oxygen | |
| CN206751391U (en) | A kind of four towers low pressure adsorbent vacuum desorption prepares the device of oxygen | |
| CN115608105A (en) | Variable-path step-by-step pressure-equalizing pressure swing adsorption gas separation method and device | |
| CN212655467U (en) | Adsorption vacuum desorption oxygen generation equipment | |
| CN206624640U (en) | A kind of single column low pressure adsorbent vacuum desorption prepares the device of oxygen | |
| CN112041264B (en) | Method of movable pressure swing adsorption oxygen production device | |
| CN213160114U (en) | Pressure swing adsorption forward and backward discharging system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20180205 Address after: 101399 Beijing city Shunyi District Niulanshan town Teng Ren Lu No. 22 building 3 layer 4 Applicant after: BEIJING JINDA WANXIANG ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO.,LTD. Address before: 101399 Beijing city Shunyi District Niulanshan town Teng Ren Lu No. 22 building 3 layer 4 Applicant before: BEIJING JINDA WANXIANG ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO.,LTD. Applicant before: BEIJING JIAHE WANXIANG TECHNOLOGY Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |