CN110127618A - A kind of preparation facilities of high purity oxygen gas and preparation method thereof - Google Patents
A kind of preparation facilities of high purity oxygen gas and preparation method thereof Download PDFInfo
- Publication number
- CN110127618A CN110127618A CN201910415672.1A CN201910415672A CN110127618A CN 110127618 A CN110127618 A CN 110127618A CN 201910415672 A CN201910415672 A CN 201910415672A CN 110127618 A CN110127618 A CN 110127618A
- Authority
- CN
- China
- Prior art keywords
- oxygen
- molecular sieve
- carbon
- gas
- based molecular
- 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.)
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- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 229910001882 dioxygen Inorganic materials 0.000 title claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000001301 oxygen Substances 0.000 claims abstract description 86
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 86
- 239000002808 molecular sieve Substances 0.000 claims abstract description 48
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000001179 sorption measurement Methods 0.000 claims abstract description 44
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 37
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000003795 desorption Methods 0.000 claims abstract description 15
- 229910052786 argon Inorganic materials 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 9
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 5
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000010457 zeolite Substances 0.000 description 3
- 239000003463 adsorbent Substances 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 2
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- REDXJYDRNCIFBQ-UHFFFAOYSA-N aluminium(3+) Chemical compound [Al+3] REDXJYDRNCIFBQ-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- -1 oxygen anions Chemical class 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- C01B13/0266—Carbon based materials
-
- 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
- C01B2210/0078—Noble gases
- C01B2210/0082—Argon
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Separation Of Gases By Adsorption (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses preparation facilities of a kind of high purity oxygen gas and preparation method thereof, solves the technical problem of the high purity oxygen on ship.Including the pressure swing adsorption method oxygenerator and carbon-based molecular sieve oxygen generator being arranged on ship, the microcellular structure of the molecular sieve in carbon-based molecular sieve adsorption tanks (12) in carbon-based molecular sieve oxygen generator is 2.8A-2.9A；The second air pressure pump (16) are provided on preparing gas input pipe (11), the oxygen output tube (10) of 93% oxygen content prepared is connected to by the second air pressure pump with gas input pipe is prepared, gas input pipe is prepared to be connected to by air inlet valve with carbon-based molecular sieve adsorption tanks (12), argon gas discharge pipe (13) and high pure oxygen desorption efferent duct (14) are also respectively provided on carbon-based molecular sieve adsorption tanks, high pure oxygen desorption efferent duct is connect by desorbing delivery valve with high pure oxygen hold-up tank (15).Achieve the purpose that directly to produce 99.5% oxygen by air.
Description
Technical field
The present invention relates to a kind of oxygen unit processed, in particular to a kind of preparation facilities of high purity oxygen gas and preparation method thereof.
Background technique
For a long time, what ship navigated by water in ocean depends on oxygen cylinder entrained on hull, oxygen cylinder with oxygen
Need to be fed at harbour, oxygen in oxygen cylinder be usually on the coast base produced with cryogenic air separation method.Existing depth
The occupation area of equipment of cold space division method high purity oxygen is big, arranges and is difficult to realize on ship, meanwhile, by the office in place on ship
It limits, high purity oxygen gas bottle limited amount entrained by ship constrains the oceangoing voyage time of ship.With the novel ocean of large-tonnage
The development of ship, it is increasing to the demand of high pure oxygen in ship's navigation, it is realized with less space live on ship
High purity oxygen gas is prepared, current problem in urgent need to solve is become.Pressure swing adsorption method is that one kind passes through in closed adsorption tower container
The method that pressurized adsorbent and the method for decompression desorption carry out oxygen processed, air is compressed to 0.8MPa by compressor, after purified
After compressed air enters in oxygen adsorption tower processed, oxygen molecule is adsorbed on the molecular sieve in oxygen adsorption tower processed, and process 60 to 70 seconds
Adsorption time, molecular sieve adsorption saturation closes intake valve, opens exhaust-valve, the nitrogen that is not adsorbed is discharged, then, then
Decompression desorption is carried out to oxygen molecular sieve, desorption time is 5-10 seconds, and the oxygen desorbed is sent to oxygen storage tank by producing air valve
's；General closed adsorption tower container is arranged in pairs, and is controlled two adsorption towers by automatic control program and is alternately adsorbed
And desorption, to realize the purpose of successive output oxygen.The obtained oxygen of pressure swing adsorption method is this side containing argon gas
Molecular sieve used in method is zeolite molecular sieve, is a kind of zeolite type crystalline aluminosilicate with micropore cubic lattice, base
This structural unit is the tetrahedron that four oxygen anions are formed around a lesser silicon or aluminium ion, typically contains Li+、Na+、
Ca2+Equal metal cations, it carries out nitrogen oxygen separating using the electric difference of two kinds of gas molecules of nitrogen oxygen, in the work of cation
Under, the big nitrogen molecule of electric is preferentially adsorbed by molecular sieve, and the oxygen molecule and inertia argon molecule that electric is small
It is very poor in zeolite surface adsorption capacity, nitrogen is separated with oxygen, argon with pressure swing adsorption method in this way, oxygen and argon in product gas after separation
Ratio are as follows: 20.94:0.93, so, after separation in mixed gas oxygen maximum concentration be 20.94 ÷ (20.94+0.93) ×
100%=95.75%.Carbon-based molecular sieve is a kind of speed divergence type adsorbent of microcellular structure, is the gas by separating different-diameter
Body molecule come realize gas separation.It is produced in nitrogen gas preparing with compressed air, since nitrogen accounts for about 78% in compressed air,
And oxygen accounts for about 21%, therefore, carbon-based molecular sieve is widely used in the biggish nitrogen-making device of accounting, and be not applied to accounting compared with
In small oxygenerator, comparatively ideal cost performance has been obtained.If being passed through the oxygen that oxygen accounting is 93%-95% in carbon-based molecular sieve
Argon mixture gas, carries out the separation of oxygen molecule and argon molecule, to realize the producing as theoretic possibility of high-purity oxygen；
But select molecular sieve micro-pore diameter numberical range be it is how many, how to optimize the step sequence and parameter of separating technology, how economy height
Oxygen purity is increased to 99.5% from 93% by effect, is become scene and is needed to grope and solve the problems, such as.
Summary of the invention
The present invention provides preparation facilities of a kind of high purity oxygen gas and preparation method thereof, solves the high purity on ship
The technical problem of oxygen.
The present invention is to solve the above technical problem by the following technical programs:
The present general inventive concept is: pressure swing adsorption method oxygenerator and carbon-based molecular sieve oxygen generation dress being respectively set on ship
It sets, first produces oxygen content and be the oxygen argon mixture gas of 93%-95%, then the oxygen argon mixture gas of the 93%-95% produced is sent to
In carbon-based molecular sieve oxygen generator, the oxygen for being 99.5% containing oxygen purity is obtained.
A kind of preparation facilities of high purity oxygen gas, including the pressure swing adsorption method oxygenerator and carbon-based molecule being arranged on ship
Oxygenerator is sieved, the oxygen output tube of 93% oxygen content prepared is provided in pressure swing adsorption method oxygenerator, at carbon-based point
It is respectively arranged with the high pure oxygen hold-up tank for preparing gas input pipe and 99% oxygen content on son sieve oxygenerator, in carbon-based system with molecular sieve for preparing
The microcellular structure of the molecular sieve in carbon-based molecular sieve adsorption tanks in oxygen device is 2.8A-2.9A, symbol A representative angstrom therein,
It angstrom is the common measurement units of molecular diameter, an order of magnitude smaller than nanometer, 1 angstrom=0.1 nanometer=10-10Rice；Preparing gas input
The second air pressure pump is provided on pipe, the oxygen output tube of 93% oxygen content prepared passes through the second air pressure pump and system
Standby gas input pipe is connected together, and prepares gas input pipe and is connected to by air inlet valve with carbon-based molecular sieve adsorption tanks, in carbon-based molecule
Argon gas discharge pipe and high pure oxygen desorption efferent duct are also respectively provided on sieve adsorption tanks, high pure oxygen desorption efferent duct is defeated by desorbing
Valve links together with high pure oxygen hold-up tank out.
It is provided with the first air pressure pump in pressure swing adsorption method oxygenerator, connects on the delivery outlet of the first air pressure pump
It is connected to air cushion tank, air cushion tank passes sequentially through first filter and the second filter is connected to absorption drier one
It rises, the delivery outlet of absorption drier passes sequentially through third filter and the 4th filter is connected to adsorption tower, the oxygen of adsorption tower
Gas desorption delivery outlet is connected together by desorbing delivery valve with oxygen storage tank is prepared, and is provided on preparing oxygen storage tank
The oxygen output tube of 93% oxygen content prepared.
A kind of preparation method of high purity oxygen gas, it is characterised in that pressure swing adsorption method following steps: is respectively set on ship
Oxygenerator and carbon-based molecular sieve oxygen generator, the molecule in carbon-based molecular sieve adsorption tanks in carbon-based molecular sieve oxygen generator
The microcellular structure of sieve is 2.8A-2.9A, first produces the oxygen argon mixture gas that oxygen content is 93%-95%, then the 93%-95% that will be produced
Oxygen argon mixture gas be sent in carbon-based molecular sieve oxygen generator, obtain containing oxygen purity be 99.5% oxygen.
The present invention is a kind of design of high-purity oxygenerator of twin-stage pressure-variable adsorption, cleverly utilizes the difference of two kinds of molecular sieves
Characteristic, the design of innovation uses two-stage pressure-variable adsorption mode, and carries out joint control to two parts pressure-swing absorption apparatus by PLC, reaches
To the purpose for directly producing 99.5% oxygen by air.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The present invention is described in detail with reference to the accompanying drawing:
A kind of preparation facilities of high purity oxygen gas, including the pressure swing adsorption method oxygenerator and carbon-based system with molecular sieve for preparing being arranged on ship
Oxygen device is provided with the oxygen output tube 10 of 93% oxygen content prepared, in carbon-based molecule in pressure swing adsorption method oxygenerator
It is respectively arranged with the high pure oxygen hold-up tank 15 for preparing gas input pipe 11 and 99% oxygen content on sieve oxygenerator, in carbon-based molecular sieve
The microcellular structure of the molecular sieve in carbon-based molecular sieve adsorption tanks 12 in oxygenerator is 2.8A-2.9A；Preparing gas input pipe
The second air pressure pump 16 is provided on 11, the oxygen output tube 10 of 93% oxygen content prepared passes through the second air pressure pump
16 are connected together with gas input pipe 11 is prepared, and prepare gas input pipe 11 and are connected by air inlet valve and carbon-based molecular sieve adsorption tanks 12
It is logical, argon gas discharge pipe 13 and high pure oxygen desorption efferent duct 14, high pure oxygen are also respectively provided on carbon-based molecular sieve adsorption tanks 12
Desorption efferent duct 14 is linked together by desorbing delivery valve with high pure oxygen hold-up tank 15.
A kind of preparation method of high purity oxygen gas, it is characterised in that pressure swing adsorption method following steps: is respectively set on ship
Oxygenerator and carbon-based molecular sieve oxygen generator, point in the carbon-based molecular sieve adsorption tanks 12 in carbon-based molecular sieve oxygen generator
The microcellular structure of son sieve is 2.8A-2.9A, and symbol A therein is represented angstrom, angstrom is the common measurement units of molecular diameter, than nanometer
Small an order of magnitude, 1 angstrom=0.1 nanometer=10-10Rice；It first produces oxygen content and is the oxygen argon mixture gas of 93%-95%, then will produce
The oxygen argon mixture gas of 93%-95% be sent in carbon-based molecular sieve oxygen generator, obtain the oxygen for being 99.5% containing oxygen purity.
Claims (3)
1. a kind of preparation facilities of high purity oxygen gas, including the pressure swing adsorption method oxygenerator and carbon-based molecular sieve being arranged on ship
Oxygenerator is provided with the oxygen output tube (10) of 93% oxygen content prepared, carbon-based in pressure swing adsorption method oxygenerator
The high pure oxygen hold-up tank (15) for preparing gas input pipe (11) and 99% oxygen content is respectively arranged on molecular sieve oxygen generator, it is special
Sign is that the microcellular structure of the molecular sieve in carbon-based molecular sieve adsorption tanks (12) in carbon-based molecular sieve oxygen generator is
2.8A-2.9A；It is provided on preparing gas input pipe (11) the second air pressure pump (16), the oxygen of 93% oxygen content prepared
Gas efferent duct (10) is connected together by the second air pressure pump (16) with gas input pipe (11) is prepared, and gas input pipe is prepared
(11) it is connected to by air inlet valve with carbon-based molecular sieve adsorption tanks (12), is also respectively provided on carbon-based molecular sieve adsorption tanks (12)
Argon gas discharge pipe (13) and high pure oxygen desorption efferent duct (14), high pure oxygen desorption efferent duct (14) by desorption delivery valve with it is high-purity
Oxygen hold-up tank (15) links together.
2. a kind of preparation facilities of high purity oxygen gas according to claim 1, which is characterized in that filled in pressure-variable adsorption legal system oxygen
It has centered the first air pressure pump (1), has been connected on the delivery outlet of the first air pressure pump (1) air cushion tank (2), it is empty
Gas surge tank (2) passes sequentially through first filter (3) and the second filter (4) and is connected together with absorption drier (5), inhales
The delivery outlet of attached formula drying machine (5) passes sequentially through third filter (6) and the 4th filter (7) is connected to adsorption tower (8), absorption
The oxygen desorption delivery outlet of tower (8) is connected together by desorbing delivery valve with oxygen storage tank (9) is prepared, and is preparing oxygen storage
Deposit the oxygen output tube (10) prepared that 93% oxygen content is provided on tank (9).
3. a kind of preparation method of high purity oxygen gas, it is characterised in that following steps: pressure-variable adsorption legal system being respectively set on ship
Oxygen device and carbon-based molecular sieve oxygen generator, point in the carbon-based molecular sieve adsorption tanks (12) in carbon-based molecular sieve oxygen generator
The microcellular structure of son sieve is 2.8A-2.9A, first produces the oxygen argon mixture gas that oxygen content is 93%-95%, then the 93%- that will be produced
95% oxygen argon mixture gas is sent in carbon-based molecular sieve oxygen generator, obtains the oxygen for being 99.5% containing oxygen purity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415672.1A CN110127618A (en) | 2019-05-18 | 2019-05-18 | A kind of preparation facilities of high purity oxygen gas and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910415672.1A CN110127618A (en) | 2019-05-18 | 2019-05-18 | A kind of preparation facilities of high purity oxygen gas and preparation method thereof |
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| Publication Number | Publication Date |
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| CN110127618A true CN110127618A (en) | 2019-08-16 |
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Family Applications (1)
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| CN201910415672.1A Pending CN110127618A (en) | 2019-05-18 | 2019-05-18 | A kind of preparation facilities of high purity oxygen gas and preparation method thereof |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023678A (en) * | 2021-04-27 | 2021-06-25 | 湖南万脉医疗科技有限公司 | Oxygen generation device of high-temperature carbonized ceramic-based molecular sieve membrane and use method thereof |
| CN114132899A (en) * | 2021-12-07 | 2022-03-04 | 中国船舶重工集团公司第七0四研究所 | Normal-temperature high-purity oxygen preparation device for ships |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR890004145A (en) * | 1987-08-07 | 1989-04-20 | 마스다 히로하루 | How to make high purity oxygen gas from air |
| JPH0733404A (en) * | 1993-12-21 | 1995-02-03 | Sumitomo Seika Chem Co Ltd | Production of high concentration oxygen |
| EP1125623A1 (en) * | 2000-02-18 | 2001-08-22 | Instytut Ciezkiej Syntezy Organicznej "Blachownia" | Method for separation of gaseous mixtures of oxygen, argon and nitrogen |
| CN2643985Y (en) * | 2003-09-28 | 2004-09-29 | 北京科技大学 | Transformation and absorption device for high concentration oxygen by use of air separation |
| CN109179335A (en) * | 2018-11-06 | 2019-01-11 | 大连力德气体科技股份有限公司 | A kind of device and method that pressure-variable adsorption prepares high-purity oxygen |
| CN210635725U (en) * | 2019-05-18 | 2020-05-29 | 山西汾西重工有限责任公司 | Preparation facilities of high-purity oxygen |
-
2019
- 2019-05-18 CN CN201910415672.1A patent/CN110127618A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR890004145A (en) * | 1987-08-07 | 1989-04-20 | 마스다 히로하루 | How to make high purity oxygen gas from air |
| JPH0733404A (en) * | 1993-12-21 | 1995-02-03 | Sumitomo Seika Chem Co Ltd | Production of high concentration oxygen |
| EP1125623A1 (en) * | 2000-02-18 | 2001-08-22 | Instytut Ciezkiej Syntezy Organicznej "Blachownia" | Method for separation of gaseous mixtures of oxygen, argon and nitrogen |
| CN2643985Y (en) * | 2003-09-28 | 2004-09-29 | 北京科技大学 | Transformation and absorption device for high concentration oxygen by use of air separation |
| CN109179335A (en) * | 2018-11-06 | 2019-01-11 | 大连力德气体科技股份有限公司 | A kind of device and method that pressure-variable adsorption prepares high-purity oxygen |
| CN210635725U (en) * | 2019-05-18 | 2020-05-29 | 山西汾西重工有限责任公司 | Preparation facilities of high-purity oxygen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113023678A (en) * | 2021-04-27 | 2021-06-25 | 湖南万脉医疗科技有限公司 | Oxygen generation device of high-temperature carbonized ceramic-based molecular sieve membrane and use method thereof |
| CN114132899A (en) * | 2021-12-07 | 2022-03-04 | 中国船舶重工集团公司第七0四研究所 | Normal-temperature high-purity oxygen preparation device for ships |
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Application publication date: 20190816 |