JP2010032129A - 空気分離装置 - Google Patents
空気分離装置 Download PDFInfo
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- JP2010032129A JP2010032129A JP2008195074A JP2008195074A JP2010032129A JP 2010032129 A JP2010032129 A JP 2010032129A JP 2008195074 A JP2008195074 A JP 2008195074A JP 2008195074 A JP2008195074 A JP 2008195074A JP 2010032129 A JP2010032129 A JP 2010032129A
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- Prior art keywords
- nitrogen gas
- liquid oxygen
- oxygen
- liquid
- gas
- Prior art date
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 211
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 148
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 131
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 40
- 238000000926 separation method Methods 0.000 claims abstract description 39
- 229910001882 dioxygen Inorganic materials 0.000 claims abstract description 35
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000001301 oxygen Substances 0.000 claims abstract description 34
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 34
- 238000009835 boiling Methods 0.000 claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 14
- 239000000284 extract Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000008016 vaporization Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000010992 reflux Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04472—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
- F25J3/04496—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist
- F25J3/04503—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist by exchanging "cold" between at least two different cryogenic liquids, e.g. independently from the main heat exchange line of the air fractionation and/or by using external alternating storage systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
- F25J3/04224—Cores associated with a liquefaction or refrigeration cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04333—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/04351—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of nitrogen
- F25J3/04357—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using quasi-closed loop internal vapor compression refrigeration cycles, e.g. of intermediate or oxygen enriched (waste-)streams of nitrogen and comprising a gas work expansion loop
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04472—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages
- F25J3/04496—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist
- F25J3/04503—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist by exchanging "cold" between at least two different cryogenic liquids, e.g. independently from the main heat exchange line of the air fractionation and/or by using external alternating storage systems
- F25J3/04509—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using the cold from cryogenic liquids produced within the air fractionation unit and stored in internal or intermediate storages for compensating variable air feed or variable product demand by alternating between periods of liquid storage and liquid assist by exchanging "cold" between at least two different cryogenic liquids, e.g. independently from the main heat exchange line of the air fractionation and/or by using external alternating storage systems within the cold part of the air fractionation, i.e. exchanging "cold" within the fractionation and/or main heat exchange line
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/42—One fluid being nitrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2250/00—Details related to the use of reboiler-condensers
- F25J2250/30—External or auxiliary boiler-condenser in general, e.g. without a specified fluid or one fluid is not a primary air component or an intermediate fluid
- F25J2250/50—One fluid being oxygen
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
【解決手段】外部から取り入れた原料空気を沸点差を利用して深冷液化分離し液体酸素および窒素ガスを製造する精留塔と、この精留塔で製造された液体酸素を溜める液体酸素貯槽3とを備え、上記精留塔で製造された窒素ガスを液化する熱交換器17と、上記液体酸素貯槽3に溜まる液体酸素を取り出して熱交換器17に冷媒として供給する液体酸素供給ポンプ4とを設け、酸素ガスの需要に応じ、液体酸素貯槽3内の液体酸素を熱交換器17に供給し、この熱交換器17内の窒素ガスと熱交換させ、液体酸素の冷熱により窒素ガスを液化させて液体窒素を生成させるとともに、窒素ガスの温熱により液体酸素を気化させて必要量の酸素ガスを生成させるようにしている。
【選択図】図2
Description
4 液体酸素供給ポンプ
17 熱交換器
Claims (3)
- 外部から取り入れた原料空気を沸点差を利用して深冷液化分離し液体酸素および窒素ガスを製造する精留塔と、上記精留塔で製造された液体酸素を上記精留塔から取り出す液体酸素取出路と、この液体酸素取出路により取り出された液体酸素を溜める液体酸素貯留タンクと、上記精留塔で製造された窒素ガスを上記精留塔から取り出す窒素ガス取出路を備え、この窒素ガス取出路により取り出された窒素ガスを液化する液化手段と、上記液体酸素貯留タンクに溜まる液体酸素を取り出して上記液化手段に冷媒として供給する供給手段と、上記液化手段で生じた酸素ガスを取り出す酸素ガス取出路を設け、酸素ガスの需要に応じ、上記液体酸素貯留タンク内の液体酸素を上記液化手段に供給し、この液化手段内の窒素ガスと熱交換させ、液体酸素の冷熱により窒素ガスを液化させて液体窒素を生成させるとともに、窒素ガスの温熱により液体酸素を気化させて必要量の酸素ガスを生成させるように構成したことを特徴とする空気分離装置。
- 上記液化手段が、上記窒素ガス取出路により取り出された窒素ガスを導入する熱交換器と、この熱交換器内を通る窒素ガスの一部を取り出して寒冷を発生させる膨張タービンと、この膨張タービンで発生した寒冷を上記熱交換器に供給する寒冷供給路とを備えた請求項1記載の空気分離装置。
- 上記液化手段が、上記窒素ガス取出路により取り出された窒素ガスを圧縮して熱交換器に供給する窒素ガス圧縮機を備えた請求項1または2記載の空気分離装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008195074A JP5244491B2 (ja) | 2008-07-29 | 2008-07-29 | 空気分離装置 |
Applications Claiming Priority (1)
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JP2008195074A JP5244491B2 (ja) | 2008-07-29 | 2008-07-29 | 空気分離装置 |
Publications (2)
Publication Number | Publication Date |
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JP2010032129A true JP2010032129A (ja) | 2010-02-12 |
JP5244491B2 JP5244491B2 (ja) | 2013-07-24 |
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JP2008195074A Active JP5244491B2 (ja) | 2008-07-29 | 2008-07-29 | 空気分離装置 |
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Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4945998B1 (ja) * | 1969-12-04 | 1974-12-07 | ||
JPS5298695A (en) * | 1976-02-12 | 1977-08-18 | Linde Ag | Method and apparatus for producing gaseous oxygen by doubleestage lowwtemperature rectification of air |
JPS5938573A (ja) * | 1982-08-24 | 1984-03-02 | エア・プロダクツ・アンド・ケミカルズ・インコ−ポレイテツド | 気体酸素製造プラント |
JPS6020073A (ja) * | 1983-07-15 | 1985-02-01 | テイサン株式会社 | 製品ガス使用量の変動に追随可能なガス液化及び気化方法 |
JPS61231380A (ja) * | 1985-04-03 | 1986-10-15 | 日本酸素株式会社 | 酸素の需要変動に適した空気液化分離方法及び装置 |
JPH0455682A (ja) * | 1990-06-22 | 1992-02-24 | Kobe Steel Ltd | 空気分離装置 |
JPH0476380A (ja) * | 1990-07-16 | 1992-03-11 | Nippon Sanso Kk | 需要変動に適した空気分離方法及び装置 |
JPH05203344A (ja) * | 1991-07-23 | 1993-08-10 | Boc Group Inc:The | 種々の需要量パターンの要件に適合したガス状酸素を供給する方法 |
JP2002168561A (ja) * | 2000-11-30 | 2002-06-14 | Kobe Steel Ltd | 空気分離方法および装置 |
JP2002340478A (ja) * | 2001-05-15 | 2002-11-27 | Kobe Steel Ltd | 空気分離装置およびその制御運転方法 |
-
2008
- 2008-07-29 JP JP2008195074A patent/JP5244491B2/ja active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4945998B1 (ja) * | 1969-12-04 | 1974-12-07 | ||
JPS5298695A (en) * | 1976-02-12 | 1977-08-18 | Linde Ag | Method and apparatus for producing gaseous oxygen by doubleestage lowwtemperature rectification of air |
JPS5938573A (ja) * | 1982-08-24 | 1984-03-02 | エア・プロダクツ・アンド・ケミカルズ・インコ−ポレイテツド | 気体酸素製造プラント |
JPS6020073A (ja) * | 1983-07-15 | 1985-02-01 | テイサン株式会社 | 製品ガス使用量の変動に追随可能なガス液化及び気化方法 |
JPS61231380A (ja) * | 1985-04-03 | 1986-10-15 | 日本酸素株式会社 | 酸素の需要変動に適した空気液化分離方法及び装置 |
JPH0455682A (ja) * | 1990-06-22 | 1992-02-24 | Kobe Steel Ltd | 空気分離装置 |
JPH0476380A (ja) * | 1990-07-16 | 1992-03-11 | Nippon Sanso Kk | 需要変動に適した空気分離方法及び装置 |
JPH05203344A (ja) * | 1991-07-23 | 1993-08-10 | Boc Group Inc:The | 種々の需要量パターンの要件に適合したガス状酸素を供給する方法 |
JP2002168561A (ja) * | 2000-11-30 | 2002-06-14 | Kobe Steel Ltd | 空気分離方法および装置 |
JP2002340478A (ja) * | 2001-05-15 | 2002-11-27 | Kobe Steel Ltd | 空気分離装置およびその制御運転方法 |
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