JP5112419B2 - Lng蒸気処理装置および方法 - Google Patents
Lng蒸気処理装置および方法 Download PDFInfo
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Description
荷卸しされたLNGが過冷却され、貯蔵タンクへの蒸気瞬間蒸発を排除するか、または少なくとも実質的に低減することを認識すべきである。したがって、貯蔵タンクからの蒸気放出が低減され、次に、蒸気再圧縮および凝縮装置システムの効率を低減する。さらに、貯蔵タンクからの低減された蒸気放出のために、最も知られている装置に共通の蒸気戻り圧縮装置システムおよび比較的長い蒸気戻り管路を排除することができる。
Claims (15)
- LNG運搬体からLNG貯蔵タンクへのLNGの移送のための荷下ろしプラントであって、
LNG貯蔵タンクからのボイルオフガスを受け取り圧縮するように構成された圧縮装置と、
圧縮装置から圧縮されたボイフオフガスおよびLNG貯蔵タンクからLNGを受け取り、LNG貯蔵タンクからのLNGおよび凝縮されたボイルオフガスから構成された飽和液体ストリームを生成するように構成された凝縮装置または吸収装置と、
飽和液体ストリームを用いて、LNG運搬体から来るLNGを過冷却するように構成される交換装置とを備える、荷下ろしプラント。 - 交換装置に流体的に結合され、交換装置の下流にあり、飽和液体ストリームから蒸気相および液相を分離するように構成される分離装置をさらに備える、請求項1に記載の荷下ろしプラント。
- 蒸気相をLNG運搬体に供給するように構成される戻り管路をさらに備える、請求項2に記載の荷下ろしプラント。
- 液相をLNG貯蔵タンクにポンプ輸送するように構成されるポンプをさらに備える、請求項2に記載の荷下ろしプラント。
- LNGストリームを提供するように構成され、送出LNGおよびLNGボイルオフガスを提供するように構成されるLNG貯蔵タンクに流体的に結合されるLNG供給源と、
LNG貯蔵タンクに流体的に結合され、LNGボイルオフガスを受け入れて、LNG貯蔵タンクからのLNGおよび凝縮されたボイルオフガスから構成された加圧された飽和液体ストリームを提供するように構成される圧縮装置および凝縮装置または吸収装置と、
加圧された飽和液体ストリームの一部の圧力を低減するように構成される圧力低減デバイスと、
圧力低減デバイスからの減圧された飽和液体ストリームの一部を用いて、荷卸しされたLNGストリームを過冷却するように構成される熱交換装置とを備える、プラント。 - 圧力低減デバイスが、加圧された飽和液体ストリームの圧力の低減によって、荷卸しされたLNG供給源の温度より低い温度に冷却するように構成される、請求項5に記載のプラント。
- 熱交換装置の下流に位置し、減圧された加圧飽和LNG液体を受け入れて、蒸気および液体を提供するように構成される分離装置をさらに備える、請求項5に記載のプラント。
- 分離装置からLNG供給源に蒸気を供給するように構成される戻りアームをさらに備え、減圧された液体をLNG貯蔵タンクにポンプ輸送するように構成されるポンプをさらに備える、請求項7に記載のプラント。
- LNG供給源からLNGストリームを移送するための方法であって、
圧縮装置および凝縮装置または吸収装置を用いて、LNG貯蔵タンクからのLNGおよびボイルオフガスから構成される、加圧された飽和液体ストリームを形成するステップと、
加圧された飽和液体ストリームの一部を減圧するステップと、
減圧された飽和液体ストリームの一部から冷却成分を受け入れる熱交換装置を用いて、LNGストリームを冷却するステップとを備える、方法。 - 減圧されたLNG液体が、熱交換装置において加熱され、蒸気部分および液体部分に分離される、請求項9に記載の方法。
- 液体部分が、LNG貯蔵タンクに供給される、請求項10に記載の方法。
- 蒸気部分が、LNG供給源に供給される、請求項10に記載の方法。
- LNGストリームが、少なくとも1°F過冷却される、請求項9に記載の方法。
- 加圧された飽和液体ストリームの他の一部が、気化装置の上流で、送出LNGと結合される、請求項9に記載の方法。
- LNG供給源が、LNG運搬体である、請求項9に記載の方法。
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US79219606P | 2006-04-13 | 2006-04-13 | |
US60/792,196 | 2006-04-13 | ||
PCT/US2007/009056 WO2007120782A2 (en) | 2006-04-13 | 2007-04-13 | Lng vapor handling configurations and methods |
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EP (1) | EP2005056A2 (ja) |
JP (1) | JP5112419B2 (ja) |
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CA (1) | CA2645251C (ja) |
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WO (1) | WO2007120782A2 (ja) |
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- 2007-04-13 CN CN2007800129523A patent/CN101421554B/zh not_active Expired - Fee Related
- 2007-04-13 WO PCT/US2007/009056 patent/WO2007120782A2/en active Application Filing
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JP2009539036A (ja) | 2009-11-12 |
CA2645251A1 (en) | 2007-10-25 |
US8117852B2 (en) | 2012-02-21 |
CN101421554A (zh) | 2009-04-29 |
WO2007120782A2 (en) | 2007-10-25 |
EP2005056A2 (en) | 2008-12-24 |
MX2008012954A (es) | 2008-10-15 |
CA2645251C (en) | 2011-03-08 |
US20090217676A1 (en) | 2009-09-03 |
WO2007120782A3 (en) | 2008-04-03 |
WO2007120782B1 (en) | 2008-05-22 |
CN101421554B (zh) | 2012-06-20 |
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