JP2016040494A5 - - Google Patents
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- JP2016040494A5 JP2016040494A5 JP2014164260A JP2014164260A JP2016040494A5 JP 2016040494 A5 JP2016040494 A5 JP 2016040494A5 JP 2014164260 A JP2014164260 A JP 2014164260A JP 2014164260 A JP2014164260 A JP 2014164260A JP 2016040494 A5 JP2016040494 A5 JP 2016040494A5
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- JP
- Japan
- Prior art keywords
- heat exchanger
- nitrogen
- gas
- compressor
- boiling point
- 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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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Description
さらに、図４における、超高純度酸素製造プロセスＢの符号２１は脱メタン精留塔（高沸点不純物除去手段）を示し、２２は脱アルゴン精留塔（低沸点不純物除去手段）、２３は循環窒素圧縮機、２４は循環窒素ガス熱交換器、２１ｘ，２２ｘは凝縮器（コンデンサー）、２１ｙ，２２ｙはリボイラーである。また、窒素液化プロセスＣ（寒冷供給工程）の符号３１は液化熱交換器を示し、３２は循環窒素圧縮機、３３，３４は膨張タービン、３５は気液分離器である。 Further, in FIG. 4, reference numeral 21 of the ultra high purity oxygen production process B indicates a demethanization rectification column (high boiling point impurity removal means), 22 indicates a deargon rectification column (low boiling point impurity removal means), and 23 indicates circulation. nitrogen compressor, 24 is circulated nitrogen gas heat exchanger, 21x, 22x condenser (condenser), 21y, 22y are reboiler. Reference numeral 31 of the nitrogen liquefaction process C (cold supply step) denotes a liquefied heat exchanger, 32 is a circulating nitrogen compressor, 33 and 34 are expansion turbines, and 35 is a gas-liquid separator.
上記のような従来の超高純度酸素製造装置では、酸素の超高純度化の工程として、前記のような高沸点不純物除去手段（脱メタン精留塔２１）と低沸点不純物除去手段（脱アルゴン精留塔２２）の両方を備える製造プロセスを備えることが、一般的である。 In the conventional ultra-high purity oxygen production apparatus as described above, the high boiling point impurity removing means (demethanization rectification column 21 ) and the low boiling point impurity removing means (deargonization) as described above are used as the ultra-high purity process of oxygen. It is common to have a production process with both rectification columns 22 ).
また、本実施形態の超高純度酸素の製造方法は、上記脱メタン精留塔２１の底部から空気分離プロセスＡの主熱交換器１３に至る流路（パイプ）Ｆを備えており、この構成により、破棄する予定のガスの冷熱を効率的に回収している。したがって、この酸素製造方法は、原料空気の増量〔設計原料空気流量の１．１３〜２．６０倍の冷却圧縮原料空気を導入する〕に伴う消費電力の増大を、冷熱の回収により相殺することができ、もって、その稼働コストを低減することができる。 In addition, the method for producing ultra-high purity oxygen according to the present embodiment includes a flow path (pipe) F from the bottom of the demethanizer 21 to the main heat exchanger 13 of the air separation process A. Thus, the cold energy of the gas scheduled to be discarded is efficiently recovered. Therefore, this oxygen production method offsets the increase in power consumption associated with an increase in the amount of raw material air (introducing cooled compressed raw material air 1.13 to 2.60 times the designed raw material air flow rate) by recovering cold energy. Therefore, the operation cost can be reduced.
１０ 精留塔
１１ 高圧塔
１２ 低圧塔
１３ 主熱交換器
１４ 過冷却器
１５ 窒素昇圧圧縮機
１６ 気液分離器
２１ 脱メタン精留塔
２２ 脱アルゴン精留塔
２３ 循環窒素圧縮機
２４ 循環窒素ガス熱交換器
３１ 液化熱交換器
３２ 循環窒素圧縮機
３３，３４ 膨張タービン
３５ 気液分離器
４１ 原料空気圧縮機
４２ 吸着塔
５１ アルゴン精留塔
５２ ポンプ
10 fractionator 11 pressure column 12 the low-pressure column 13 main heat exchanger 14 subcooler 15 nitrogen booster compressor 16 the gas-liquid separator 21 demethanizer fractionator 22 de argon rectification column 23 circulating nitrogen compressor 24 circulates nitrogen gas Heat exchanger 31 Liquefaction heat exchanger 32 Circulating nitrogen compressor 33, 34 Expansion turbine 35 Gas-liquid separator 41 Raw air compressor 42 Adsorption tower 51 Argon rectification tower 52 Pump
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014164260A JP6427359B2 (en) | 2014-08-12 | 2014-08-12 | Method and apparatus for producing ultra-high purity oxygen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014164260A JP6427359B2 (en) | 2014-08-12 | 2014-08-12 | Method and apparatus for producing ultra-high purity oxygen |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016040494A JP2016040494A (en) | 2016-03-24 |
| JP2016040494A5 true JP2016040494A5 (en) | 2017-07-20 |
| JP6427359B2 JP6427359B2 (en) | 2018-11-21 |
Family
ID=55540864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2014164260A Active JP6427359B2 (en) | 2014-08-12 | 2014-08-12 | Method and apparatus for producing ultra-high purity oxygen |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6427359B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7495675B2 (en) | 2019-09-18 | 2024-06-05 | レール・リキード－ソシエテ・アノニム・プール・レテュード・エ・レクスプロワタシオン・デ・プロセデ・ジョルジュ・クロード | High Purity Oxygen Production System |
| WO2023083488A1 (en) * | 2021-11-10 | 2023-05-19 | Linde Gmbh | Method and arrangement for producing an argon product and an oxygen product, and method for retrofitting one or more air fractionation plants |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8828134D0 (en) * | 1988-12-02 | 1989-01-05 | Boc Group Plc | Air separation |
| JP2693220B2 (en) * | 1989-04-24 | 1997-12-24 | テイサン株式会社 | Ultra high purity oxygen production method |
| GB9607200D0 (en) * | 1996-04-04 | 1996-06-12 | Boc Group Plc | Air separation |
| US5881570A (en) * | 1998-04-06 | 1999-03-16 | Praxair Technology, Inc. | Cryogenic rectification apparatus for producing high purity oxygen or low purity oxygen |
| JP3929799B2 (en) * | 2002-03-11 | 2007-06-13 | 日本エア・リキード株式会社 | Method and apparatus for producing ultra high purity oxygen |
-
2014
- 2014-08-12 JP JP2014164260A patent/JP6427359B2/en active Active
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