JP4901740B2 - Lpgおよび熱電併給の構成および方法 - Google Patents
Lpgおよび熱電併給の構成および方法 Download PDFInfo
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Description
Claims (22)
- 分留カラムのカラム頂部蒸気としてリーンLNGと、分留カラムの底部生成物としてエタンおよびLPGの少なくとも1種とを製造するためのLNG分留プラントであって、
分留カラムに結合され、LNG分留プラントに導入されるリッチLNGが供給される熱交換器を含み、前記熱交換器が、カラム頂部蒸気を部分的に凝縮して還流を生成し、かつ分離器においてカラム頂部蒸気の分離によって生成されたリーン蒸気を完全に凝縮してリーンLNG凝縮物を形成するようにさらに構成され、前記LNG分留プラントがさらに、
膨張器によって駆動されるエネルギー発生器を含み、前記膨張器が、ポンプによって加圧されかつ部分的に気化されたLNGの分離から得られたフラッシュされた液体流を熱交換器内で加熱することによって生成された、フラッシュされたリッチLNGの、超臨界に加圧された過熱部分を減圧し、それによって電気的エネルギーとカラムへのストリッピング蒸気流を生成する、LNG分留プラント。 - 熱交換器においてリッチLNGとの熱交換によって凝縮された後でポンプによって加圧されたリーンLNG凝縮物からの残留冷能を用いて、エネルギーサイクルの作動流体を凝縮するランキンエネルギーサイクルに結合される、請求項1に記載のLNG分留プラント。
- リーンLNGをパイプライン圧力にポンプ加圧するように構成されたポンプをさらに含む、請求項1に記載のLNG分留プラント。
- エネルギーサイクル中の作動流体が、窒素、メタン、エタン、プロパン、ブタン、およびペンタンの少なくとも1種を含む、多成分流体を含む、請求項2に記載のLNG分留プラント。
- 熱交換器でカラム頂部蒸気との熱交換によって加熱されたリッチLNGを液体部分と蒸気部分に分離する分離器をさらに含む、請求項1に記載のLNG分留プラント。
- 加熱されたリッチLNGの液体部分をポンプ加圧し、それによって分離器でフラッシュされるリッチLNGの加圧された超臨界部分を形成するポンプをさらに含む、請求項5に記載のLNG分留プラント。
- 加熱されたリッチLNGのポンプによって加圧された超臨界液体部分を加熱し、それによってリッチLNGの加圧された超臨界および過熱された部分を形成する熱源をさらに含む、請求項6に記載のLNG分留プラント。
- 熱源が、熱交換器であり、リッチLNGの膨張された超臨界の過熱された部分によって、分留カラムの必要とするストリッピングと加熱の少なくとも一部を提供するように構成される、請求項7に記載のLNG分留プラント。
- プラントであって、
プラントに導入されたリッチLNGの加熱され加圧された液体部分を受容して膨張された原料を形成する膨張器によって駆動され、それによって電気的エネルギーを発生するエネルギー発生器を含み、前記液体部分は、部分的に気化されたLNGの分離から得られたフラッシュされた液体流を加圧しかつ加熱することによって生成され、プラントがさらに、
部分的に気化されたLNGの液体部分の加圧、加熱、および膨張から得られた膨張された原料、および部分的に気化されたLNGの分離から得られた加熱されたリッチLNGの蒸気部分を受容し、それによって底部生成物としてエタンおよびLPGの少なくとも1種、および頂部リーン蒸気を生成する分留器と、
頂部リーン蒸気の部分をプラントに導入されたリッチLNGと熱交換することによって、分留器の頂部リーン蒸気の少なくとも一部を少なくとも部分的に凝縮するように構成された第1熱交換器と、
頂部リーン蒸気から、還流として分留器にポンプ送給される液体部分と、第1熱交換器においてリッチLNGと熱交換することによって凝縮されてリーンLNG凝縮物を形成する蒸気部分とに分離する、第1熱交換器に結合される還流分離器と、
ポンプが還流分離器からリーンLNG凝縮物を受容しパイプライン圧力に加圧するように構成された、第2熱交換器上流のポンプとを含む、プラント。 - 第1熱交換器が、頂部リーン蒸気を部分的に凝縮し還流分離器蒸気を完全に凝縮する冷媒として、LNG分留プラントに供給されるリッチLNGを用いるように構成される、請求項9に記載のプラント。
- 第2熱交換器が、エネルギーサイクルの作動流体の凝縮を可能にし、一方、ポンプから得られる加圧されたリーンLNG凝縮物を再ガス化するように構成される、請求項9に記載のプラント。
- 部分的に気化されたLNGの液体部分の分離およびポンプ加圧から得られる、加熱されたリッチLNGの加圧された超臨界部分を加熱し、それによってリッチLNGの加熱され加圧された超臨界部分を形成する第3熱交換器をさらに含む、請求項9に記載のプラント。
- 第3熱交換器が、リッチLNGの加熱され加圧された液体部分によって、分留器の必要とするストリッピングと加熱の少なくとも一部を提供するように構成される、請求項12に記載のプラント。
- リーンLNGと、エタンおよびLPGの少なくとも1種とを製造するプラントの運転方法であって、
プラントに供給されたリッチLNGから部分的に気化されたLNGを形成するステップと、
部分的に気化されたLNGの分離から得られたリッチLNGの液体部分を加圧および加熱するステップと、
加圧され加熱された部分を膨張させ、それによって電気的エネルギーを発生し、膨張した部分を分留器に供給するステップと、
部分的に気化されたLNGの分離から得られたリッチLNGの蒸気部分を分留器に送り、それによって底部生成物としてエタンおよびLPGの少なくとも1種、および頂部リーン蒸気を生成するステップと、
リッチLNGの冷却容量を用いて、頂部蒸気を少なくとも部分的に凝縮し、部分的に凝縮された頂部蒸気をリーン蒸気およびリーン液体に分離器内で分離するステップと、
分離器から得られたリーン液体を分留器への還流としてポンプ送給し、分留器頂部からのリーン蒸気をさらに凝縮してリーンLNG凝縮物を形成するステップと、
リーンLNG凝縮物をパイプライン圧力までポンプ加圧し、エネルギーサイクルを運転する作動流体の凝縮を用いて熱交換器中でリーンLNG凝縮物を気化するステップとを含む、プラントの運転方法。 - LNG分留プラントに供給されたリッチLNGを加熱することによって得られた加熱されたリッチLNGを蒸気部分と液体部分に分離し、それによってリッチLNGの液体部分を形成するステップをさらに含む、請求項14に記載の方法。
- カラム頂部蒸気を少なくとも部分的に凝縮するステップが、(1)カラム頂部蒸気を冷却するステップと、(2)冷却された生成物の蒸気部分を液体部分から分離するステップと、(3)エタンおよび/またはLPG回収を改善するために、カラムへの還流としてポンプ送給すべき冷却された生成物の液体部分を分離するステップと、(4)分離された蒸気部分をさらに冷却し、それによってリーンLNG凝縮物を形成するステップとを含む、請求項14に記載の方法。
- ステップ(1)および(2)および(4)がLNG分留プラントに供給されたリッチLNGの冷却容量を利用する、請求項16に記載の方法。
- 分留器の必要とするストリッピングと加熱の少なくとも一部が、リッチLNGの加熱され加圧された超臨界部分によって、リッチLNGの液体部分の加熱ステップにより提供される、請求項14に記載の方法。
- 凝縮されたLNG頂部生成物を気化するステップの前に、分留器頂部からの凝縮されたLNG頂部生成物をパイプライン圧力まで加圧するステップをさらに含む、請求項14に記載の方法。
- 作動流体が、メタン、エタン、プロパン、ブタン、およびペンタンの少なくとも1種を含む多成分流体を含む、請求項14に記載の方法。
- 少なくとも95%のプロパンが回収される、請求項14に記載の方法。
- 少なくとも75%のエタンが回収される、請求項14に記載の方法。
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US61247304P | 2004-09-22 | 2004-09-22 | |
US60/612,473 | 2004-09-22 | ||
PCT/US2005/031005 WO2006036441A1 (en) | 2004-09-22 | 2005-08-30 | Configurations and methods for lpg and power cogeneration |
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JP2008513726A JP2008513726A (ja) | 2008-05-01 |
JP2008513726A5 JP2008513726A5 (ja) | 2011-04-28 |
JP4901740B2 true JP4901740B2 (ja) | 2012-03-21 |
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EP (1) | EP1792129A1 (ja) |
JP (1) | JP4901740B2 (ja) |
CN (1) | CN101027526B (ja) |
AU (1) | AU2005290036B2 (ja) |
CA (1) | CA2578471C (ja) |
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- 2005-08-30 JP JP2007532355A patent/JP4901740B2/ja not_active Expired - Fee Related
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CA2578471C (en) | 2010-09-21 |
JP2008513726A (ja) | 2008-05-01 |
MX2007003102A (es) | 2007-05-16 |
AU2005290036B2 (en) | 2008-06-12 |
EA200700700A1 (ru) | 2007-10-26 |
EA010641B1 (ru) | 2008-10-30 |
CN101027526B (zh) | 2010-12-08 |
NO20071425L (no) | 2007-04-20 |
US8065890B2 (en) | 2011-11-29 |
AU2005290036A1 (en) | 2006-04-06 |
CN101027526A (zh) | 2007-08-29 |
US20080190135A1 (en) | 2008-08-14 |
CA2578471A1 (en) | 2006-04-06 |
WO2006036441A1 (en) | 2006-04-06 |
EP1792129A1 (en) | 2007-06-06 |
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