JPS58151305A - Production of oxygen - Google Patents
Production of oxygenInfo
- Publication number
- JPS58151305A JPS58151305A JP57033407A JP3340782A JPS58151305A JP S58151305 A JPS58151305 A JP S58151305A JP 57033407 A JP57033407 A JP 57033407A JP 3340782 A JP3340782 A JP 3340782A JP S58151305 A JPS58151305 A JP S58151305A
- Authority
- JP
- Japan
- Prior art keywords
- oxygen
- air
- production
- membrane
- unit
- 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.)
- Granted
Links
Abstract
Description
【発明の詳細な説明】
この発明社酸素を高収率で製造することのできる酸素の
製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing oxygen that can produce oxygen in high yield.
一般に工業用の酸素は空気を原料とし、この空気を分離
して製造されるが１このような空気分離方法の１つに深
冷空気液化分離法がある。この深冷空気液化分離法とし
ては、例えば第７図に示すように原料空気を空２１．濾
過器ｌに導びき、清浄化したのち、圧縮Ｉ！！２で約８
Ｊ９／−程度に加圧したのち、リバーシング熱交換器、
膨張タービン、複式精留塔などよりなる周知の空気分離
装置８に導入し、酸素を製造するものである。このよう
に、従来の空気分離方法で酸素を製造する場合、製品酸
素１ｔＦｉ原料空気敏に比例した量しか生産できなかっ
た。Generally, industrial oxygen is produced by separating air using air as a raw material.1 One such air separation method is a cryogenic air liquefaction separation method. In this cryogenic air liquefaction separation method, for example, as shown in FIG. After introducing it into a filter l and cleaning it, it is compressed I! ! 2 for about 8
After pressurizing to about J9/-, reversing heat exchanger,
The oxygen is introduced into a well-known air separation device 8 consisting of an expansion turbine, a double rectification column, etc., to produce oxygen. As described above, when oxygen is produced using the conventional air separation method, the amount of oxygen produced is only proportional to 1 tFi of product oxygen and 1 tFi of raw material air.
第２図は、プレシャ・スイング・アトソープション方式
の酸素の製造方法の例を示すものである。FIG. 2 shows an example of a pressure swing atsorption method for producing oxygen.
原料空気社圧縮機４により５に９／ｃｄ程度に加圧され
たのち、吸着塔などよりなる周知のプレシャ・スイング
・アトソープション式空気分離装置５に送られ、ここで
酸素と窒素とに分離されて、製品酸素とされる。しかし
、このようなプレシャ・スイング・アトソープション方
式の酸素製造方法においても、上述と同様に生産量が限
定されていた。After being pressurized to about 5 to 9/cd by a raw material compressor 4, it is sent to a well-known pressure swing atsorption type air separation device 5 consisting of an adsorption tower, etc., where it is separated into oxygen and nitrogen. It is separated into product oxygen. However, even in such a pressure swing atsorption method for producing oxygen, the production amount is limited as described above.
この発明は、このような従来の空気分離方法における無
駄を省き、目的とする酸素を効率よく、低コストで製造
できる方法を提供することを目的とし、原料空Ｘを予じ
めガス分崗展で処理し、原料空気中の酸素濃度を高めた
うえ分離工程に送り込むことをＩ＃敞とするものである
。The purpose of this invention is to provide a method that can eliminate waste in conventional air separation methods and produce the desired oxygen efficiently and at low cost. The I# method is to increase the oxygen concentration in the raw material air and send it to the separation process.
以下図面を参照して、この発明の詳細な説明する。The present invention will be described in detail below with reference to the drawings.
第３図は、この発明の第１の実施例を示し、酸素を第１
図に示した深冷方式によって製造するものである。原料
空気はファン６によって／〜ｆｉ／ｃｖｌに加圧され、
酸素分１ｉＭユニット７に送られる。FIG. 3 shows a first embodiment of the invention, in which oxygen is
It is manufactured using the deep cooling method shown in the figure. The raw air is pressurized to /~fi/cvl by the fan 6,
1iM of oxygen is sent to unit 7.
醗素分ｍ膜ユニット７は、酢酸セルロースやシリコーン
ゴムなどの空気中の酸素を窒素よりもよく透過する酸素
透過膜７ａと、この酸素透過膜７ａの両側の一火室７ｂ
および二次室７Ｃとからなるもので、酸素透過膜７ａの
両側の一火室７ｂと二次室？Ｃの間に分圧差を与えると
、高圧側の一火室？ｂから低圧側の二次室７Ｃに酸素が
選択的に透過するものである。このようにファン６で大
量の原料空気が、酸素分離膜ユニット７の一火室７ｂに
送られるが、一方、上記ユニツＦ７の二次室７Ｃは、真
空ポンプ８で吸引されて、−７００〜−７００ｒｎｍＨ
ｇの減圧にされている。従って、酸素透過膜？ａの画一
に圧力差が与えられているため、−火室７ｂの原料空気
中の酸素が、屑綿に優先して酸素透過膜７ａを透過し二
次室７Ｃに流れる。かくして、二次ｍ？ｃ内には酸素濃
度の高い酸素濃縮空気が得られる。この際、−火室７ｂ
＆：は次工程の空気分離装置８に送る空気量の数倍量の
空気量を送る必要がある。これ蝶、酸素透過膜７ｍが空
気流に対して抵抗体として彷き、空気流量を制限するた
めである。このようにして得られた酸素濃縮空気は、従
来と同様に圧縮Ｉ！ｚで８ ｋｌ／Ｃ１１程度に加圧さ
れたのち、空気分離装置８に送られ、酸素が製造される
。The oxygen-permeable membrane unit 7 includes an oxygen-permeable membrane 7a made of cellulose acetate or silicone rubber that permeates oxygen in the air better than nitrogen, and a fire chamber 7b on both sides of the oxygen-permeable membrane 7a.
and a secondary chamber 7C, which consists of a fire chamber 7b and a secondary chamber on both sides of the oxygen permeable membrane 7a. If a partial pressure difference is given between C, one firebox on the high pressure side? Oxygen selectively permeates from b to the secondary chamber 7C on the low pressure side. In this way, a large amount of raw material air is sent to the first fire chamber 7b of the oxygen separation membrane unit 7 by the fan 6, while the secondary chamber 7C of the unit F7 is sucked by the vacuum pump 8 and has an air temperature of -700 to -700rnmH
The pressure is reduced to g. Therefore, an oxygen permeable membrane? Since a pressure difference is uniformly applied to a, the oxygen in the raw air in the firebox 7b passes through the oxygen permeable membrane 7a and flows into the secondary chamber 7C with priority over waste cotton. Thus, quadratic m? Oxygen-enriched air with a high oxygen concentration can be obtained within c. At this time, - firebox 7b
&: It is necessary to send an amount of air several times the amount of air sent to the air separation device 8 in the next step. This is because the oxygen permeable membrane 7m acts as a resistor against the air flow and limits the air flow. The oxygen-enriched air thus obtained is compressed in the same manner as before. After being pressurized to about 8 kl/C11 at Z, it is sent to the air separation device 8, where oxygen is produced.
このような酸素製造方法によれば、原料空気を酸素分離
膜ユニット？で処理して酸素濃縮空気を得、これを新た
な原料空気として酸素を製造するため、空気分離装［８
での製品酸素ガス量が増加し、酸素製造方法が向上する
。According to this oxygen production method, the raw air is separated by an oxygen separation membrane unit? In order to obtain oxygen-enriched air and use it as new raw material air to produce oxygen, an air separation device [8
The amount of product oxygen gas increases, and the oxygen production method improves.
第弘図は１この発明の第２実施例を示すもので、第２図
に示したプレッシャ・スイング・アトソープション方式
によって酸素を製造するものである。Figure 1 shows a second embodiment of the present invention, in which oxygen is produced by the pressure swing atsorption method shown in Figure 2.
原料空気は７アン６によって、＃Ｉ／実施例と同様に酸
素分離膜ユニット７の一次Ｎ７ｂに送られる。The raw material air is sent to the primary N7b of the oxygen separation membrane unit 7 by the 7-an 6 as in #I/Example.
酸素分離膜ユニット７の二次室７Ｃはやはり真空ポンプ
８で減圧とされている。これによって、原料空気社第１
実施例と同様に酸素分離膜ユニット？で酸素濃度の高い
空気が得られ、この酸素濃縮空気は圧縮機番で５ＪＩＰ
／Ｃ１１程度に加圧されたのち、プレッシャ・スイング
・アトソープション式空気弘分離装置５に送られ、目的
とする酸素が製造されるＯ
この酸素製造方法によｎば、酸素濃縮空気がプレッシャ
・スイング・アトソープション式空気分離装置５に供給
さｎるので、この装置５より得られる製品酸素ガス量が
大幅に増加し、酸素収率が向上する０また、上記装置５
の窒素ＦＪ＆着塔の吸着時間が延長され、吸着塔のパー
ジ再生時間が短縮され、よって吸着塔の小型化が計れる
。The secondary chamber 7C of the oxygen separation membrane unit 7 is also reduced in pressure by the vacuum pump 8. As a result, the first
Oxygen separation membrane unit as in the example? Air with high oxygen concentration is obtained, and this oxygen-enriched air has a compressor number of 5JIP.
/C After being pressurized to about 11, it is sent to the pressure swing atsorption type air separator 5 to produce the desired oxygen. According to this oxygen production method, the oxygen-enriched air is - Since the air is supplied to the swing atsorption type air separation device 5, the amount of product oxygen gas obtained from this device 5 is greatly increased, and the oxygen yield is improved.
The adsorption time of the nitrogen FJ & landing tower is extended, the purge regeneration time of the adsorption tower is shortened, and the adsorption tower can be made smaller.
以上説明したように、この発明の酸素を製造する方法社
、原料空気を予しめガス分離膜によって処理し、原料空
気中の酸素の濃度を高めたうえ、分離工程に送り込むも
のであるので、分離工程での酸素の製造収率が大輪に向
上し、生産コストがこれに伴って著るしく低下する。ま
た、空気分層工程での装置の小型化が計られ、設備費が
低減される。さらに、ガス分離膜は空気濾過器の機能を
も有しているので、空気濾過器が不要となるなどの利点
を有する。As explained above, in the method for producing oxygen of the present invention, the raw material air is treated in advance with a gas separation membrane to increase the concentration of oxygen in the raw material air, and then sent to the separation process. The production yield of oxygen in the process is greatly improved, and the production cost is significantly reduced accordingly. Furthermore, the equipment used in the air separation process can be made smaller, reducing equipment costs. Furthermore, since the gas separation membrane also has the function of an air filter, it has the advantage of eliminating the need for an air filter.
＃Ｅ１図および＃！２図は、いずれも従来の酸素の製造
方法を示す概略系統図、第３図および第弘図は、いずれ
もこの発明の＃に素の製造方法の例を示す概略系統図で
ある。
６・・・・・・ファン、？・・・・・・［ｌＩｌ膜ユニ
ット。
第曹図
第３図
第４図#E1 figure and #! 2 is a schematic system diagram showing a conventional method for producing oxygen, and FIGS. 3 and 3 are schematic system diagrams showing an example of a method for producing oxygen according to the present invention. 6...fan?・・・・・・[lIl membrane unit. Figure 3 Figure 4
Claims (1)
、空気分離工程の前にガス分離膜を設けこのガス分離膜
によって酸素の濃度を高めた空気を得、この空気を空気
分離工程に送ることを特徴とする酸素の製造方法。When air is used as a raw material and is separated to produce oxygen, a gas separation membrane is installed before the air separation process to obtain air with increased oxygen concentration, which is then sent to the air separation process. A method for producing oxygen, characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57033407A JPS58151305A (en) | 1982-03-03 | 1982-03-03 | Production of oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57033407A JPS58151305A (en) | 1982-03-03 | 1982-03-03 | Production of oxygen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58151305A true JPS58151305A (en) | 1983-09-08 |
| JPH0328363B2 JPH0328363B2 (en) | 1991-04-18 |
Family
ID=12385739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57033407A Granted JPS58151305A (en) | 1982-03-03 | 1982-03-03 | Production of oxygen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58151305A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59169904A (en) * | 1983-03-16 | 1984-09-26 | Japan Storage Battery Co Ltd | Concentration of oxygen |
| JPS61127609A (en) * | 1984-11-27 | 1986-06-14 | Kobe Steel Ltd | Purification device for helium |
| US4595405A (en) * | 1984-12-21 | 1986-06-17 | Air Products And Chemicals, Inc. | Process for the generation of gaseous and/or liquid nitrogen |
| JPS63126522A (en) * | 1986-11-03 | 1988-05-30 | エア・プロダクツ・アンド・ケミカルズ・インコーポレイテツド | Method of separating component of gas fluid |
| JPH02307805A (en) * | 1989-05-22 | 1990-12-21 | Nippon Sanso Kk | Oxygen production apparatus |
| CN103723681A (en) * | 2013-12-13 | 2014-04-16 | 科迈（常州）电子有限公司 | Household oxygenerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472778A (en) * | 1977-11-02 | 1979-06-11 | Monsanto Co | Method of separating gas mixture |
| JPS5651223A (en) * | 1979-06-18 | 1981-05-08 | Monsanto Co | Selective adsorbing method |
| JPS5878494U (en) * | 1981-11-20 | 1983-05-27 | 大阪瓦斯株式会社 | air separation equipment |
-
1982
- 1982-03-03 JP JP57033407A patent/JPS58151305A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5472778A (en) * | 1977-11-02 | 1979-06-11 | Monsanto Co | Method of separating gas mixture |
| JPS5651223A (en) * | 1979-06-18 | 1981-05-08 | Monsanto Co | Selective adsorbing method |
| JPS5878494U (en) * | 1981-11-20 | 1983-05-27 | 大阪瓦斯株式会社 | air separation equipment |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59169904A (en) * | 1983-03-16 | 1984-09-26 | Japan Storage Battery Co Ltd | Concentration of oxygen |
| JPS61127609A (en) * | 1984-11-27 | 1986-06-14 | Kobe Steel Ltd | Purification device for helium |
| US4595405A (en) * | 1984-12-21 | 1986-06-17 | Air Products And Chemicals, Inc. | Process for the generation of gaseous and/or liquid nitrogen |
| JPS61171523A (en) * | 1984-12-21 | 1986-08-02 | エアー．プロダクツ．アンド．ケミカルス．インコーポレーテツド | Separation of gas |
| JPS63126522A (en) * | 1986-11-03 | 1988-05-30 | エア・プロダクツ・アンド・ケミカルズ・インコーポレイテツド | Method of separating component of gas fluid |
| JPH02307805A (en) * | 1989-05-22 | 1990-12-21 | Nippon Sanso Kk | Oxygen production apparatus |
| CN103723681A (en) * | 2013-12-13 | 2014-04-16 | 科迈（常州）电子有限公司 | Household oxygenerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0328363B2 (en) | 1991-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3144313A (en) | Difusion purification of gases | |
| EP0605819A2 (en) | Multistage membrane control system and process | |
| KR890007651A (en) | Method and apparatus to make purifying atmosphere | |
| KR860007009A (en) | Method for preparing oxygen-enhanced air stream | |
| DE3462999D1 (en) | Process for separating aggressive gases from gas mixtures | |
| US4430293A (en) | Containment hydrogen removal system for a nuclear power plant | |
| CA2005066A1 (en) | Process for capturing nitrogen from air using gas separation membranes | |
| CN104587804B (en) | Gas separation membrane is used to carry out the apparatus system purified | |
| EP0266884B1 (en) | Process and apparatus for pressure swing adsorption employing gaseous diffusion barriers | |
| AU2001262854A1 (en) | A method of operating a combustion plant and a combustion plant | |
| RU2095698C1 (en) | Method of conditioning atmosphere in fruit storage chamber and plant for realization of this method | |
| JPS58151305A (en) | Production of oxygen | |
| JPH06343813A (en) | Gas purifying device | |
| US4733526A (en) | Separation of gas mixture | |
| JPH0699035A (en) | Method for separating and recovering carbon dioxide in waste gas | |
| KR970706886A (en) | VERY HIGH PURITY NITROGEN BY MEMBRANE SEPARATION | |
| CN204447689U (en) | Gas separation membrane is used to carry out the apparatus system of purifying | |
| JP3385053B2 (en) | Rare gas high yield recovery and purification method and rare gas high yield recovery and purification device | |
| JPS58151304A (en) | Production of oxygen by pressure swing method | |
| KR101833882B1 (en) | Method for separation of fluorinated gas using multi-stage gas separation process comprising high-selectivity hollow fiber membrane modules | |
| CN210134072U (en) | Comprehensive treatment device for blast furnace gas | |
| JPS62191404A (en) | Air separation apparatus | |
| JPH09206541A (en) | Separation of oxygen and argon in air and device therefor | |
| JP2019013883A (en) | Gas separation system | |
| JPH06254333A (en) | Pressure swing air separation device and its operation method |