JPH0119936B2 - - Google Patents
Info
- Publication number
- JPH0119936B2 JPH0119936B2 JP11861285A JP11861285A JPH0119936B2 JP H0119936 B2 JPH0119936 B2 JP H0119936B2 JP 11861285 A JP11861285 A JP 11861285A JP 11861285 A JP11861285 A JP 11861285A JP H0119936 B2 JPH0119936 B2 JP H0119936B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- storage
- oxygen
- low
- zeolite
- 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.)
- Expired
Links
- 239000001301 oxygen Substances 0.000 claims description 23
- 229910052760 oxygen Inorganic materials 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 15
- 238000001179 sorption measurement Methods 0.000 claims description 15
- 229910021536 Zeolite Inorganic materials 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 9
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 9
- 239000010457 zeolite Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000000926 separation method Methods 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 206010021143 Hypoxia Diseases 0.000 claims description 2
- 230000001146 hypoxic effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000001294 propane Substances 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/14—Production of inert gas mixtures; Use of inert gases in general
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Storage Of Fruits Or Vegetables (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ガス貯蔵、いわゆるCA貯蔵
（controlled atmosphere storage）における低
酸素空気の調整方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method for regulating hypoxic air in gas storage, so-called CA storage (controlled atmosphere storage).
従来、上記の方法としては、その１つに貯蔵庫
内の空気を燃料と共に燃焼させて低酸素濃度の空
気を造る方法がある。もう１つには、空気中の酸
素と窒素をゼオライトを用いて吸着分離法で分け
て、低酸素濃度の空気を得る方法がある。さらに
もう一つには、アンモニアの熱分解及び燃焼の併
用による低酸素空気の造り方がある。これらの他
にも化学反応を応用して低酸素空気を造る方法が
ある。
Conventionally, one of the above methods is to create air with a low oxygen concentration by burning the air in the storage together with fuel. Another method is to separate oxygen and nitrogen in the air using zeolite using an adsorption separation method to obtain air with a low oxygen concentration. Yet another method is to create low-oxygen air using a combination of thermal decomposition and combustion of ammonia. In addition to these methods, there are other methods of creating low-oxygen air by applying chemical reactions.
しかしながら、上記従来の方法ではエネルギー
コストが高い、貯蔵庫内の温度調節が困難であ
る、処理能力が十分でない、廃棄物処理が面倒で
ある等の多くの問題点を有していた。
However, the conventional methods described above have many problems, such as high energy costs, difficulty in controlling the temperature inside the storage, insufficient processing capacity, and troublesome waste disposal.
そこで、この発明は上記問題点を解決するため
に、貯蔵庫内の空気中の酸素と窒素をゼオライト
を用いて吸着分離法で分けて、低酸素濃度の空気
を造り、さらにその空気を燃料と共に低温燃焼用
触媒を用いて燃焼させている。
Therefore, in order to solve the above-mentioned problems, this invention separates oxygen and nitrogen in the air in the storage by adsorption separation using zeolite to create air with a low oxygen concentration, and then uses the air together with fuel at a low temperature. It is burned using a combustion catalyst.
上記手段を施した結果、貯蔵庫内の空気中の酸
素と窒素をゼオライトを用いて吸着分離法で分け
た段階で、その空気中の酸素は20数％から約10％
になり、その空気を燃料と共に低温燃焼用触媒を
用いて燃焼させた段階で前記約10％からごく少量
の濃度となる。
As a result of applying the above measures, when the oxygen and nitrogen in the air in the storage room are separated by adsorption separation using zeolite, the oxygen in the air is reduced from 20% to about 10%.
When the air is combusted with fuel using a low-temperature combustion catalyst, the concentration decreases from about 10% to a very small amount.
以下、この発明の構成を詳細に説明する。 Hereinafter, the configuration of the present invention will be explained in detail.
第１図はこの発明の工程図であり、貯蔵庫内の
空気はゼオライト吸着層Ａ，Ｂへ交互に送られ、
その空気中の酸素は20数％から約10％に低減さ
れ、この低酸素空気をプロパン等の炭化水素燃料
と共に、多孔質アルミナ繊維等からなる低温燃焼
用触媒下で燃焼し、前記の約10％からさらにごく
少量の濃度にまで低減される。この工程を繰返し
貯蔵庫内全体の空気の酸素濃度をガス貯蔵におけ
る最適の酸素濃度にまで低減させる。上記工程で
貯蔵庫内の空気をゼオライト吸着層Ａ，Ｂへ交互
に送るのは、一方のゼオライト吸着層で酸素の吸
着を行なつている間に、他方のゼオライト吸着層
ではその酸素の脱着を行なわなければならないか
らである。この原理は物理的現象、すなわち圧力
の変化に応じた吸着と脱着の現象を利用してい
る。 Figure 1 is a process diagram of this invention, in which air in the storage is alternately sent to zeolite adsorption layers A and B.
The oxygen in the air is reduced from about 20% to about 10%, and this low-oxygen air is combusted together with a hydrocarbon fuel such as propane under a low-temperature combustion catalyst made of porous alumina fibers. % to even a very small concentration. This process is repeated to reduce the oxygen concentration of the air throughout the storage to the optimum oxygen concentration for gas storage. In the above process, the air in the storage is sent alternately to the zeolite adsorption layers A and B, so that while oxygen is being adsorbed in one zeolite adsorption layer, the other zeolite adsorption layer is desorbing the oxygen. Because it has to be. This principle makes use of physical phenomena, namely the phenomenon of adsorption and desorption in response to changes in pressure.
第２図は、この発明の方法を実施したガス貯蔵
設備の概略図であり、貯蔵庫１には冷凍機２及び
ガス組成分析器３が備え付けられており、貯蔵庫
１内の空気はブロワー４により吸着分離装置５へ
送られ、この吸着分離装置５で処理された貯蔵庫
１内の空気はさらに燃焼装置６へ送られ、スクラ
バー７を経て再び貯蔵庫１内へ循環される。 FIG. 2 is a schematic diagram of a gas storage facility in which the method of the present invention is implemented.A storage 1 is equipped with a refrigerator 2 and a gas composition analyzer 3, and the air in the storage 1 is adsorbed by a blower 4. The air in the storage 1 that has been sent to the separation device 5 and treated by the adsorption separation device 5 is further sent to the combustion device 6, passed through the scrubber 7, and then circulated back into the storage 1.
吸着分離装置５は前記工程図で説明したような
ゼオライト吸着層Ａ，Ｂが設けられており、貯蔵
庫１内の空気はこれら吸着層Ａ，Ｂへ交互に送ら
れる。 The adsorption separation device 5 is provided with zeolite adsorption layers A and B as explained in the process diagram, and the air in the storage 1 is sent to these adsorption layers A and B alternately.
燃焼装置６は、メタン、プロパン、ブタン等を
加圧液化してボンベ詰め等した炭化水素燃料供給
源８、触媒燃焼バーナ９、及び熱交換器１０より
成つている。 The combustion device 6 includes a hydrocarbon fuel supply source 8 in which methane, propane, butane, etc. are liquefied under pressure and packed in a cylinder, a catalytic combustion burner 9, and a heat exchanger 10.
スクラバー７は、燃焼により生ずる炭酸ガスを
除去するものである。 The scrubber 7 removes carbon dioxide gas produced by combustion.
ガス組成分析器３は、ガス貯蔵における酸素と
炭酸ガスの最適ガス組成を維持するために設けら
れており、このようなガス組成分析器としてはオ
ルザツトガス分析器等が用いられる。 The gas composition analyzer 3 is provided to maintain the optimum gas composition of oxygen and carbon dioxide during gas storage, and an Orzato gas analyzer or the like is used as such a gas composition analyzer.
尚、貯蔵庫１内の酸素濃度が一旦所定の濃度ま
で下つたら、外気を定期的に導入してその濃度を
保つようにするのが好ましい。 Note that once the oxygen concentration in the storage 1 has fallen to a predetermined concentration, it is preferable to maintain that concentration by periodically introducing outside air.
この発明のガス貯蔵における低酸素空気の調整
方法は、以上に述べたように構成されているの
で、燃焼方式による問題点と吸着方式による問題
点を互いに補うことのできるものであり、大量の
空気の酸素濃度の引下げに適しており、又酸素濃
度の引下げの速度が非常に早く、さらに又貯蔵庫
内のガス組成の管理がし易い等の優れた効果を有
する。
Since the method for adjusting low-oxygen air in gas storage according to the present invention is configured as described above, the problems caused by the combustion method and the problems caused by the adsorption method can be mutually compensated for, and a large amount of air can be adjusted. It is suitable for reducing the oxygen concentration in the storage chamber, and has excellent effects such as a very fast reduction in oxygen concentration and easy control of the gas composition in the storage.
第１図はこの発明に係るガス貯蔵における低酸
素空気の調整方法の工程図、第２図はこの発明の
方法を実施したガス貯蔵設備の概略図である。
１…貯蔵庫、５…吸着分離装置、６…燃焼装
置。
FIG. 1 is a process diagram of a method for regulating low-oxygen air in gas storage according to the present invention, and FIG. 2 is a schematic diagram of a gas storage facility in which the method of the present invention is implemented. 1... Storage, 5... Adsorption separation device, 6... Combustion device.
Claims (1)
を用いて吸着分離法で分けて、低酸素濃度の空気
を造り、さらにその空気を燃料と共に低温燃焼用
触媒を用いて燃焼させたことを特徴とするガス貯
蔵における低酸素空気の調整方法。1 The oxygen and nitrogen in the air in the storage room are separated by adsorption separation using zeolite to create air with a low oxygen concentration, and the air is then combusted along with fuel using a low-temperature combustion catalyst. A method for regulating hypoxic air in gas storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60118612A JPS61274740A (en) | 1985-05-30 | 1985-05-30 | Method for conditioning low oxygen air in gas storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60118612A JPS61274740A (en) | 1985-05-30 | 1985-05-30 | Method for conditioning low oxygen air in gas storage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61274740A JPS61274740A (en) | 1986-12-04 |
| JPH0119936B2 true JPH0119936B2 (en) | 1989-04-13 |
Family
ID=14740859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60118612A Granted JPS61274740A (en) | 1985-05-30 | 1985-05-30 | Method for conditioning low oxygen air in gas storage |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61274740A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990006475A1 (en) * | 1988-12-01 | 1990-06-14 | Storefresh Systems Pty Ltd. | Improvements in controlled atmosphere equipment |
| NL1000594C1 (en) * | 1995-06-19 | 1996-12-20 | Pebaco B V | Method and device for controlling the atmosphere in a gas-filled, lockable room |
| CN109509385B (en) * | 2018-09-29 | 2020-10-30 | 嘉善县干窑中学 | Inert gas generator for experiments |
-
1985
- 1985-05-30 JP JP60118612A patent/JPS61274740A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61274740A (en) | 1986-12-04 |
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