JP4939651B2 - 空気分離方法及び装置 - Google Patents
空気分離方法及び装置 Download PDFInfo
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- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
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Description
Claims (14)
- 第1の圧縮浄化空気流と、該第1の圧縮浄化空気流よりも高い圧力を有する第2の圧縮浄化空気流を生成する工程と、
前記第1の圧縮浄化空気流と前記第2の圧縮浄化空気流をそれぞれ、低圧熱交換器と高圧熱交換器で、空気分離装置で発生する還流と共に、間接熱交換を介して冷却し、これにより、該第1の圧縮浄化空気流から主供給空気流を生成するとともに、該第2の圧縮浄化空気流から液相または気液共存相流体状態の高圧空気流を生成する工程と、
主供給空気流を、空気分離装置の高圧塔に導入し、高圧空気流を膨張し、高圧空気流の少なくとも一部を、空気分離装置の低圧塔と高圧塔の少なくとも1つに導入する工程とからなる、空気分離方法において、
前記還流は、高圧熱交換器に導入され気化される低圧塔の底部の液体酸素カラムからなるポンプ送給液体酸素流の少なくとも一部と、それぞれ高圧熱交換器と低圧熱交換器に導入される、低圧塔から除去された廃棄窒素流から形成される第1と第2の補助廃棄窒素流からなり、
高圧及び低圧熱交換器は、低圧熱交換器で第2の補助廃棄窒素流が呈する圧力降下に等しい圧力降下を第1の補助廃棄窒素流が生ずるのに必要な流路断面積よりも小さな流路断面積で第1の補助廃棄窒素流が通過することによって、第1の補助廃棄窒素流が、低圧熱交換器での第2の補助廃棄窒素流よりも、高圧熱交換器において高い圧力降下を呈するように構成されている、空気分離方法。 - 空気流は、圧縮され、冷却され、そして浄化され、該空気流は、空気流における高沸点不純物を吸着するための吸着剤を有する浄化装置で浄化され、
前記第1の圧縮浄化空気流は、圧縮され、冷却され、浄化された後、前記空気流の第1部分から形成され、
前記第2の圧縮浄化空気流は、圧縮され、冷却され、浄化された後、前記空気流の第2部分を更に圧縮し冷却することによって形成され、
前記浄化装置の前記吸着剤は、低圧熱交換器を通過した第1と第2の廃棄窒素流の第2部分で再生される、請求項1に記載の方法。 - 圧縮され、冷却され、浄化された後の前記空気流の第3部分は、低圧熱交換器内で更に、圧縮され冷却され、そして部分的に冷却され、そして、冷凍流を作るために、ターボエクスパンダ内でターボ膨張され、
前記冷凍流は、前記低圧塔へと導入される、請求項2に記載の方法。 - 圧縮され、冷却され、浄化された後の前記空気流の第3部分は、更に、圧縮され冷却され、そして、前記高圧熱交換器内で部分的に冷却されて、そして、冷凍流を作るためにターボエクスパンダ内でターボ膨張され、
前記冷凍流は、前記低圧塔へ導入される、請求項2に記載の方法。 - 前記高圧塔の液体塔底部からなる粗液体酸素流と、前記高圧塔の液化窒素塔上部からなる窒素を豊富に含む液体流は、前記廃棄窒素流と、前記低圧塔の塔上部からなる窒素を豊富に含む蒸気流と共に、間接熱交換を介して過冷却され、
前記粗液体酸素流の少なくとも一部と、前記窒素を豊富に含む液体流の少なくとも一部は、膨張され、前記低圧塔内に導入され、
前記窒素を豊富に含む蒸気流は、前記還流の1つとして、前記低圧熱交換器内に導入される、請求項1、2、3または4に記載の方法。 - 前記高圧塔の液体塔底部からなる粗液体酸素流と、前記高圧塔の液化窒素塔上部からなる窒素を豊富に含む液体流は、前記低圧熱交換器内で過冷却され、
前記粗液体酸素流の少なくとも一部と、前記窒素を豊富に含む液体流の少なくとも一部は、膨張され、前記低圧塔に導入され、
前記窒素を豊富に含む蒸気流は、前記還流の1つとして、前記低圧熱交換器内に導入される、請求項3に記載の方法。 - 前記窒素を豊富に含む液体流は、第1の窒素を豊富に含む液体流であり、
前記高圧塔の液化窒素塔上部からなる第2の窒素を豊富に含む液体流は、前記高圧熱交換器内でポンプで汲み上げられ、気化される、請求項6記載の方法。 - 空気流を圧縮し、冷却し、浄化して、圧縮され、冷却され、浄化された後の前記空気流の第1部分から第1の圧縮され浄化された空気流を製造する、主空気圧縮機、第1アフタークーラと浄化装置と、
圧縮され、冷却され、浄化された前記空気流の第2部分を更に圧縮するための、前記浄化装置と流体連絡する昇圧コンプレッサと、前記空気流の前記第2部分を冷却するように前記昇圧コンプレッサに連結され、これにより、前記第1の圧縮浄化空気流よりも高圧の第2の圧縮浄化空気流を形成する、第2アフタークーラと、
それぞれ前記第2アフタークーラに連結され、前記浄化装置と流体連絡する、高圧熱交換器と低圧熱交換器とからなる空気分離装置であって、
前記低圧熱交換器と前記高圧熱交換器は、空気分離ユニットで製造された還流との間接熱交換を介して、それぞれ、前記第1の圧縮浄化空気流と前記第2の圧縮浄化空気流を冷却するように構成されて、これにより、該第1の圧縮浄化空気流から主供給空気流を生成するとともに、該第2の圧縮浄化空気流から液体或いは気液共存相流体状態の高圧空気流を製造し、
前記空気分離ユニットは、前記主供給空気流を受けるために前記低圧熱交換器に接続される高圧塔と、少なくとも前記高圧空気流の一部を受けるために膨張装置によって前記高圧熱交換器に接続される低圧塔からなり、
前記低圧塔の底部の液体酸素カラムからなる液体酸素流を加圧するためのポンプを備え、該ポンプは、前記高圧熱交換器に接続されて、ポンプ送給後の前記液体酸素流が、前記高圧熱交換器に導入され、気化されるようになっており、
前記高圧熱交換器と前記低圧熱交換器は、前記低圧塔と流体連絡されて、それぞれ前記低圧塔から除去される排気窒素流から形成される、第1と第2の補助廃棄窒素流を受け取るようになっており、
前記高圧熱交換器は、前記第1の補助的廃棄窒素流のためのより小さな流路断面積が、前記低圧熱交換器における前記第2の補助的廃棄窒素流が生ずる圧力降下と同じ圧力降下を前記第1補助的廃棄窒素流が生ずるに必要な流路断面積より小さくなるように高圧熱交換器内で設定されるように構成されている、空気分離装置。 - 前記浄化装置は、前記空気流における高沸点不純物を吸収するために吸着剤を有し、
前記浄化装置は、前記吸着剤を再生するために前記低圧熱交換器を通過した後の前記第1と第2の廃棄窒素流の前記第2部分を受容するように前記低圧熱交換器に接続される、請求項8に記載の空気分離装置。 - もう一つの昇圧コンプレッサが、前記空気流の第3部分を更に圧縮するために前記浄化装置に流体連絡して設けられ、第3アフタークーラが、前記もう一つの昇圧コンプレッサに連結され、
前記低圧熱交換器が、前記もう一つの昇圧コンプレッサに連結され、更に圧縮された前記空気流の前記第3部分を部分的に冷却するように構成されており、
ターボエクスパンダが、前記空気流の前記第3部分をターボ膨張するように、前記低圧熱交換器と前記低圧塔の間に連結され、これにより、冷凍流を形成し、前記低圧塔に該冷凍流を導入する、請求項9に記載の空気分離装置。 - もう一つの昇圧コンプレッサが、前記空気流の第3部分を更に圧縮するために前記浄化装置に流体連絡して設けられ、第3アフタークーラが、前記もう一つの昇圧コンプレッサに連結され、
前記高圧熱交換器は、前記もう一つの昇圧コンプレッサに接続され、更に圧縮された前記空気流の前記第3部分を部分的に冷却するように構成され、
ターボエクスパンダは、前記空気流の前記第3部分をターボ膨張するために、前記高圧熱交換器と前記低圧塔の間に接続され、これにより、前記低圧塔に前記冷凍流を導入する、請求項9に記載の空気分離装置。 - 過冷却器は、前記高圧塔と前記低圧塔に連結され、前記高圧塔の底部の液体カラムからなる粗液体酸素流と、前記高圧塔の上部の液化窒素カラムからなる窒素を豊富に含む液体流を、前記廃棄窒素流と、前記低圧塔の上部のカラムからなる窒素を豊富に含む蒸気流との間接熱交換を介して、過冷却し、
前記低圧塔は、前記粗液体酸素流の少なくとも一部と前記窒素を豊富に含む液体流の少なくとも一部を受けるために、前記過冷却器に接続されており、
前記低圧塔と前記過冷却器の間に配置される膨張弁は、前記粗液体酸素流の少なくとも一部と前記窒素を豊富に含む液体流の少なくとも一部を膨張し、
前記低圧熱交換器は、前記窒素を豊富に含む蒸気流を前記還流の一つとして受けるために、前記過冷却機に接続される、請求項8、9、10または11に記載の空気分離装置。 - 前記低圧熱交換器は、前記高圧塔に接続され、前記高圧塔の底部の液体カラムからなる粗液体酸素流と前記高圧塔の上部の液化窒素カラムからなる窒素を豊富に含む液体流を過冷却するように構成され、
前記低圧塔は、前記低圧熱交換器に接続されて、前記粗液体酸素流の少なくとも一部と前記窒素を豊富に含む液体流の少なくとも一部が、前記低圧塔に導入され、
膨張弁が、前記低圧塔と前記低圧熱交換器の間に配置されて、前記粗液体酸素流の少なくとも一部と前記窒素を豊富に含む液体流の少なくとも一部を膨張し、
前記低圧熱交換器は、前記低圧塔に接続されて、前記窒素を豊富に含む蒸気流が前記還流の一つとして、前記低圧熱交換器に導入される、請求項10に記載の空気分離装置。 - 前記窒素を豊富に含む液体流は、第1の窒素を豊富に含む液体流であり、
ポンプが、前記高圧塔の上部の液化窒素カラムからなる第2の窒素を豊富に含む液体流を加圧し、前記高圧熱交換器内の前記第2の窒素を豊富に含む液体流を気化するために、前記高圧塔と前記高圧熱交換器の間に接続される、請求項13に記載の空気分離装置。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10436508B2 (en) | 2013-02-26 | 2019-10-08 | Taiyo Nippon Sanso Corporation | Air separation method and air separation apparatus |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110214453A1 (en) * | 2008-08-14 | 2011-09-08 | Linde Aktiengesellschaft | Process and device for cryogenic air fractionation |
US8726691B2 (en) * | 2009-01-30 | 2014-05-20 | Praxair Technology, Inc. | Air separation apparatus and method |
US20100192628A1 (en) * | 2009-01-30 | 2010-08-05 | Richard John Jibb | Apparatus and air separation plant |
US8397535B2 (en) * | 2009-06-16 | 2013-03-19 | Praxair Technology, Inc. | Method and apparatus for pressurized product production |
US20110138856A1 (en) * | 2009-12-10 | 2011-06-16 | Henry Edward Howard | Separation method and apparatus |
US20110192194A1 (en) * | 2010-02-11 | 2011-08-11 | Henry Edward Howard | Cryogenic separation method and apparatus |
US9279613B2 (en) | 2010-03-19 | 2016-03-08 | Praxair Technology, Inc. | Air separation method and apparatus |
US20120036891A1 (en) * | 2010-08-12 | 2012-02-16 | Neil Mark Prosser | Air separation method and apparatus |
DE102011015233A1 (de) * | 2011-03-25 | 2012-09-27 | Linde Ag | Vorrichtung zur Tieftemperaturzerlegung von Luft |
EP2597409B1 (en) * | 2011-11-24 | 2015-01-14 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Process and apparatus for the separation of air by cryogenic distillation |
PL2770286T3 (pl) * | 2013-02-21 | 2017-10-31 | Linde Ag | Sposób i urządzenie do pozyskiwania tlenu pod wysokim ciśnieniem i azotu pod wysokim ciśnieniem |
US20150114037A1 (en) * | 2013-10-25 | 2015-04-30 | Neil M. Prosser | Air separation method and apparatus |
US20160186930A1 (en) * | 2014-02-28 | 2016-06-30 | Praxair Technology, Inc. | Pressurized product stream delivery |
US20170211881A1 (en) * | 2016-01-22 | 2017-07-27 | Zhengrong Xu | Method and system for providing auxiliary refrigeration to an air separation plant |
CN106247757B (zh) * | 2016-08-26 | 2019-09-24 | 陈正洪 | 一种气体转化方法及系统 |
CN107560320B (zh) * | 2017-10-18 | 2022-11-22 | 上海宝钢气体有限公司 | 一种生产高纯氧和高纯氮的方法及装置 |
US11635254B2 (en) | 2017-12-28 | 2023-04-25 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Utilization of nitrogen-enriched streams produced in air separation units comprising split-core main heat exchangers |
CN113154796B (zh) * | 2021-03-23 | 2022-12-09 | 金川集团股份有限公司 | 一种回收氧氮资源的可变多循环氧氮冷能利用装置及方法 |
US20240035745A1 (en) * | 2022-07-28 | 2024-02-01 | Neil M. Prosser | System and method for cryogenic air separation using four distillation columns including an intermediate pressure column |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3661203A (en) * | 1969-11-21 | 1972-05-09 | Parkson Corp | Plates for directing the flow of fluids |
DE2535132C3 (de) | 1975-08-06 | 1981-08-20 | Linde Ag, 6200 Wiesbaden | Verfahren und Vorrichtung zur Herstellung von Drucksauerstoff durch zweistufige Tieftemperaturrektifikation von Luft |
GB2080929B (en) | 1980-07-22 | 1984-02-08 | Air Prod & Chem | Producing gaseous oxygen |
US4345925A (en) | 1980-11-26 | 1982-08-24 | Union Carbide Corporation | Process for the production of high pressure oxygen gas |
DE3216510A1 (de) | 1982-05-03 | 1983-11-03 | Linde Ag, 6200 Wiesbaden | Verfahren zur gewinnung von gasfoermigem sauerstoff unter erhoehtem druck |
GB8828133D0 (en) * | 1988-12-02 | 1989-01-05 | Boc Group Plc | Air separation |
FR2681415B1 (fr) | 1991-09-18 | 1999-01-29 | Air Liquide | Procede et installation de production d'oxygene gazeux sous haute pression par distillation d'air. |
US5197296A (en) * | 1992-01-21 | 1993-03-30 | Praxair Technology, Inc. | Cryogenic rectification system for producing elevated pressure product |
US5355682A (en) * | 1993-09-15 | 1994-10-18 | Air Products And Chemicals, Inc. | Cryogenic air separation process producing elevated pressure nitrogen by pumped liquid nitrogen |
US5355681A (en) * | 1993-09-23 | 1994-10-18 | Air Products And Chemicals, Inc. | Air separation schemes for oxygen and nitrogen coproduction as gas and/or liquid products |
US5655388A (en) | 1995-07-27 | 1997-08-12 | Praxair Technology, Inc. | Cryogenic rectification system for producing high pressure gaseous oxygen and liquid product |
US5711166A (en) * | 1997-01-22 | 1998-01-27 | The Boc Group, Inc. | Air separation method and apparatus |
US5829271A (en) * | 1997-10-14 | 1998-11-03 | Praxair Technology, Inc. | Cryogenic rectification system for producing high pressure oxygen |
US5916262A (en) * | 1998-09-08 | 1999-06-29 | Praxair Technology, Inc. | Cryogenic rectification system for producing low purity oxygen and high purity oxygen |
GB9925097D0 (en) * | 1999-10-22 | 1999-12-22 | Boc Group Plc | Air separation |
FR2800859B1 (fr) * | 1999-11-05 | 2001-12-28 | Air Liquide | Procede et appareil de separation d'air par distillation cryogenique |
JP3715497B2 (ja) | 2000-02-23 | 2005-11-09 | 株式会社神戸製鋼所 | 酸素の製造方法 |
GB0005374D0 (en) | 2000-03-06 | 2000-04-26 | Air Prod & Chem | Apparatus and method of heating pumped liquid oxygen |
DE10021081A1 (de) | 2000-04-28 | 2002-01-03 | Linde Ag | Verfahren und Vorrichtung zum Wärmeaustausch |
US6286336B1 (en) * | 2000-05-03 | 2001-09-11 | Praxair Technology, Inc. | Cryogenic air separation system for elevated pressure product |
US6935411B2 (en) * | 2000-06-08 | 2005-08-30 | Mikros Manufacturing, Inc. | Normal-flow heat exchanger |
US6357258B1 (en) * | 2000-09-08 | 2002-03-19 | Praxair Technology, Inc. | Cryogenic air separation system with integrated booster and multicomponent refrigeration compression |
US6718795B2 (en) | 2001-12-20 | 2004-04-13 | Air Liquide Process And Construction, Inc. | Systems and methods for production of high pressure oxygen |
US7188492B2 (en) | 2002-01-18 | 2007-03-13 | Linde Aktiengesellschaft | Plate heat exchanger |
US6626008B1 (en) * | 2002-12-11 | 2003-09-30 | Praxair Technology, Inc. | Cold compression cryogenic rectification system for producing low purity oxygen |
US6622520B1 (en) * | 2002-12-11 | 2003-09-23 | Praxair Technology, Inc. | Cryogenic rectification system for producing low purity oxygen using shelf vapor turboexpansion |
JP4287771B2 (ja) | 2004-03-22 | 2009-07-01 | 株式会社神戸製鋼所 | 空気液化分離装置およびその運転方法 |
DE102005028012A1 (de) | 2005-06-16 | 2006-09-14 | Linde Ag | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
US20080245102A1 (en) | 2005-11-17 | 2008-10-09 | Frederic Judas | Process and Apparatus for the Separation of Air by Cryogenic Distillation |
US20110192194A1 (en) * | 2010-02-11 | 2011-08-11 | Henry Edward Howard | Cryogenic separation method and apparatus |
-
2007
- 2007-06-15 US US11/818,636 patent/US9222725B2/en not_active Expired - Fee Related
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2008
- 2008-05-19 JP JP2010512236A patent/JP4939651B2/ja not_active Expired - Fee Related
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10436508B2 (en) | 2013-02-26 | 2019-10-08 | Taiyo Nippon Sanso Corporation | Air separation method and air separation apparatus |
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