JP2005351579A - 窒素製造方法および装置 - Google Patents
窒素製造方法および装置 Download PDFInfo
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- JP2005351579A JP2005351579A JP2004174612A JP2004174612A JP2005351579A JP 2005351579 A JP2005351579 A JP 2005351579A JP 2004174612 A JP2004174612 A JP 2004174612A JP 2004174612 A JP2004174612 A JP 2004174612A JP 2005351579 A JP2005351579 A JP 2005351579A
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- Prior art keywords
- nitrogen
- expansion turbine
- exhaust gas
- gas
- air
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 50
- 239000007789 gas Substances 0.000 claims abstract description 42
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims description 19
- 230000007246 mechanism Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 238000007670 refining Methods 0.000 abstract 1
- 238000001179 sorption measurement Methods 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000009835 boiling Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000003795 desorption Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 230000003584 silencer Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 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
- F25J3/044—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 a single pressure main column system only
-
- 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
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
- F25J3/0406—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of nitrogen
-
- 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
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
-
- 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
- F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
- F25J3/04393—Details relating to the work expansion, e.g. process parameter etc. using multiple or multistage gas work expansion
-
- 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/72—Refluxing the column with at least a part of the totally condensed overhead gas
-
- 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
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
- F25J2240/04—Multiple expansion turbines in parallel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
【解決手段】 原料空気を冷却する主熱交換器と、空気から窒素を分離精製する精留塔と、該精留塔からの排ガスを断熱膨張させることにより寒冷を発生させる膨張タービンを有し、精留塔からの窒素ガスおよび排ガスを主熱交換器に通して原料空気を冷却する窒素製造方法において、前記精留塔から抜き出される排ガスの一部を寒冷発生源として膨張タービンに通す一方、該膨張タービンの昇圧側には前記精留塔からの窒素ガスを導入して該窒素ガスを加圧する。
【選択図】 図1
Description
10 深冷分離部
11 エアフィルター
12 空気冷却器
2a,2b 前処理用吸着塔
3 主熱交換器
31,32,33,34 (熱交換)経路
4 (第1)膨張タービン
4b 第2膨張タービン
41,41b 負荷装置
5 精留塔
6 加熱器
8 サイレンサー
51 塔底部
52 塔頂凝縮器
61,62,63,64,65,66,67,68,69,71 流路
70 バイパス流路
72 分岐流路
Claims (4)
- 原料空気を冷却する主熱交換器と、空気から窒素を分離精製する精留塔と、該精留塔からの排ガスを断熱膨張させることにより寒冷を発生させる膨張タービンを有し、精留塔からの窒素ガスおよび排ガスを主熱交換器に通して原料空気を冷却する窒素製造方法において、前記精留塔から抜き出される排ガスの一部を寒冷発生源として膨張タービンに通す一方、該膨張タービンの昇圧側には前記精留塔からの窒素ガスを導入して該窒素ガスを加圧し、且つ、該膨脹タービンでは同時に外部仕事を行って系外にエネルギーを放散することにより、系内の寒冷バランスを図ることを特徴とする窒素製造方法。
- 原料空気を冷却する主熱交換器と、空気から窒素を分離精製する精留塔と、該精留塔からの排ガスを断熱膨張させることにより寒冷を発生させる膨張タービンを有し、精留塔からの窒素ガスおよび排ガスを主熱交換器に通して原料空気を冷却する機構を備えた窒素製造装置において、上記膨張タービンには、前記精留塔から抜き出される排ガスの一部を寒冷発生源として導入するラインが設けられる一方、該膨張タービンの昇圧側には前記精留塔からの窒素ガス導入ラインが接続され、窒素ガスを加圧可能に構成されていることを特徴とする窒素製造装置。
- 前記膨張タービンは、該タービンで発生した外部仕事を系外へ放散して寒冷バランスを図る機構を備えている請求項2に記載の窒素製造装置。
- 前記膨張タービンは2機1組で構成され、1機の膨張タービンは、排ガスの断熱膨張と窒素ガスの圧縮を行う機能を備え、他の膨脹タービンは、排ガスを断熱膨張させると共に、外部仕事を行うことで熱を系外へ放散し寒冷バランスを図る機能を備えている請求項2に記載の窒素製造装置。
Priority Applications (1)
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JP2004174612A JP4202971B2 (ja) | 2004-06-11 | 2004-06-11 | 窒素製造方法および装置 |
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JP2004174612A JP4202971B2 (ja) | 2004-06-11 | 2004-06-11 | 窒素製造方法および装置 |
Publications (2)
Publication Number | Publication Date |
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JP2005351579A true JP2005351579A (ja) | 2005-12-22 |
JP4202971B2 JP4202971B2 (ja) | 2008-12-24 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103759499A (zh) * | 2014-01-13 | 2014-04-30 | 浙江海天气体有限公司 | 一种超低能耗制氮装置 |
EP3059536A1 (de) * | 2015-02-19 | 2016-08-24 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Gewinnung eines Druckstickstoffprodukts |
FR3061534A1 (fr) * | 2017-01-05 | 2018-07-06 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et appareil de rechauffement d'un vaporiseur atmospherique a l'aide d'un gaz provenant d'une unite de separation cryogenique de l'air |
KR20200021776A (ko) * | 2018-08-21 | 2020-03-02 | 주식회사 포스코 | 공기분리장치의 운전방법 |
-
2004
- 2004-06-11 JP JP2004174612A patent/JP4202971B2/ja not_active Expired - Lifetime
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103759499A (zh) * | 2014-01-13 | 2014-04-30 | 浙江海天气体有限公司 | 一种超低能耗制氮装置 |
EP3059536A1 (de) * | 2015-02-19 | 2016-08-24 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Gewinnung eines Druckstickstoffprodukts |
WO2016131545A1 (de) * | 2015-02-19 | 2016-08-25 | Linde Aktiengesellschaft | Verfahren und vorrichtung zur gewinnung eines druckstickstoffprodukts |
CN108207113A (zh) * | 2015-02-19 | 2018-06-26 | 林德股份公司 | 获得压缩氮产品的方法及设备 |
FR3061534A1 (fr) * | 2017-01-05 | 2018-07-06 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procede et appareil de rechauffement d'un vaporiseur atmospherique a l'aide d'un gaz provenant d'une unite de separation cryogenique de l'air |
US10605410B2 (en) | 2017-01-05 | 2020-03-31 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for reheating an atmospheric vaporizer using a gas originating from a cryogenic air-separation unit |
US11092292B2 (en) | 2017-01-05 | 2021-08-17 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for reheating an atmospheric vaporizer using a gas originating from a cryogenic air separation unit |
KR20200021776A (ko) * | 2018-08-21 | 2020-03-02 | 주식회사 포스코 | 공기분리장치의 운전방법 |
KR102139990B1 (ko) | 2018-08-21 | 2020-07-31 | 주식회사 포스코 | 공기분리장치의 운전방법 |
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JP4202971B2 (ja) | 2008-12-24 |
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