JP6270887B2 - 液化石油ガスを貯蔵し輸送する方法およびシステム - Google Patents
液化石油ガスを貯蔵し輸送する方法およびシステム Download PDFInfo
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- JP6270887B2 JP6270887B2 JP2016050614A JP2016050614A JP6270887B2 JP 6270887 B2 JP6270887 B2 JP 6270887B2 JP 2016050614 A JP2016050614 A JP 2016050614A JP 2016050614 A JP2016050614 A JP 2016050614A JP 6270887 B2 JP6270887 B2 JP 6270887B2
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- lpg
- steam
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- 238000000034 method Methods 0.000 title claims description 16
- 239000003915 liquefied petroleum gas Substances 0.000 title description 49
- 239000007788 liquid Substances 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 239000007791 liquid phase Substances 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 40
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 20
- 239000001294 propane Substances 0.000 description 20
- 238000001816 cooling Methods 0.000 description 11
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 11
- 239000001273 butane Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 239000001282 iso-butane Substances 0.000 description 10
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 5
- 230000032258 transport Effects 0.000 description 4
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
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- 239000012530 fluid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000003209 petroleum derivative Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- RPJSGONHAGDAGQ-UHFFFAOYSA-N butane propane Chemical compound CCC.CCC.CCCC.CCCC RPJSGONHAGDAGQ-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- YVQBOKCDPCUWSP-UHFFFAOYSA-N oxonane Chemical compound C1CCCCOCCC1 YVQBOKCDPCUWSP-UHFFFAOYSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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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
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/66—Butane or mixed butanes
-
- 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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/62—Details of storing a fluid in a tank
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ocean & Marine Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Description
(1)液化貨物、すなわちLPGを周囲温度よりも低い温度で輸送する、全冷却式(fully refrigerated)LPG運搬船として知られるLPG運搬船、および(2)液化貨物、すなわちLPGを大気圧よりも高い圧力、かつ周囲温度よりも低い温度で輸送するLPG運搬船。後者は、半冷却/半加圧式(semi−refrigerated/semi−pressurised)として知られている。
・2つの分離貨物について貨物タンクの圧力および温度を維持すること、
・航行中、貨物を冷却すること、および
・荷積み時に貨物を冷却すること。
4つの液密容器AからDを備えた典型的なVLGCを、いくつかの異なる貨物を運搬するように設計し、これら貨物のうち、最も低温の貨物と思われるのはプロパンである。貨物構成への熱漏洩の計算は、例えば総計427kWになり、その場合、各貨物タンク構成への熱漏洩は、
液密容器A:96kW
液密容器B:112kW
液密容器C:112kW
液密容器D:107kW
となる。
再液化ユニットを、少なくとも一方を稼働させて使用して、第1の貨物タイプからの蒸気を凝縮するステップと、
凝縮蒸気を熱交換器に通過させるステップと、
第2の貨物タイプからの蒸気を熱交換器に同時に流して、凝縮蒸気との熱交換によってその蒸気を凝縮するステップと、
熱交換器から出た凝縮蒸気をそれぞれの貨物タイプに戻すステップと
を含む方法によって、実現される。
再液化ユニットが、少なくとも一方を稼働させて、第1の貨物タイプからの蒸気を凝縮するように使用され、
凝縮蒸気が熱交換器を通過し、
第2の貨物タイプからの蒸気が熱交換器を同時に流れて、凝縮蒸気との熱交換によって蒸気が凝縮し、
熱交換器から出た凝縮蒸気がそれぞれの貨物タイプに戻る、
システムに関する。
100、200 貨物タンク
300、400 再液化ユニット
500 熱交換器
600 絞り弁
700 循環ポンプ
800 圧縮機
900 分離器
1.100、1.200 圧縮機
1.300 冷却媒体
1.900 電気モータ
1.950 電力供給部
2.000 往復圧縮機
Claims (15)
- LPG運搬船、特に、同じ船荷上で2つの異なるLPGタイプの貨物を有するLPG運搬船上でLPGを貯蔵し輸送する方法であって、
前記LPG運搬船が再液化ユニット(300、400)を有し、該再液化ユニット(300、400)において、蒸発ガスが凝縮され、次いでそれぞれのLPG貨物タイプ用の少なくとも1つの貨物タンク(100)に戻る、LPGを貯蔵し輸送する方法において、
前記再液化ユニット(300、400)を、少なくとも一方を稼働させて使用し、第1の貨物タイプからの蒸気を凝縮するステップと、
前記第1の貨物タイプからの凝縮された蒸気を熱交換器(500)に通過させるステップと、
第2の貨物タイプからの蒸気を前記熱交換器(500)に同時に流して、前記第1の貨物タイプからの凝縮された蒸気との熱交換によって前記第2の貨物タイプからの蒸気を凝縮するステップと、
前記熱交換器から出た前記第2の貨物タイプからの凝縮された蒸気を前記第2の貨物タイプに戻すステップと、
前記第2の貨物タイプ用の少なくとも1つの貨物タンク(200)に戻る自由流が妨害される場合、前記第2の貨物タイプに戻すべき凝縮された蒸気を配管(7)内に配置されたポンプで送るステップと、
気相と液相とに分離するように、前記熱交換器(500)から戻る前記第1の貨物タイプの凝縮された蒸気を、分離器に通過させるステップと、
前記第1の貨物タイプに分離した液体を戻し、かつ、分離した蒸気を前記再液化ユニット(300、400)戻すステップと、
を含むことを特徴とする、方法。 - 圧力要件を満たすように、前記再液化ユニット(300、400)からの凝縮蒸気を、前記熱交換器(500)の上流または下流で絞るステップをさらに含むことを特徴とする、請求項1に記載の方法。
- 前記圧力要件を満たすように、凝縮された蒸気を2段階で絞るステップをさらに含むことを特徴とする、請求項1に記載の方法。
- 凝縮された蒸気が、前記それぞれの貨物タンク(100、200)内に自由に流れ戻ることができるように、前記熱交換器(500)を前記LPG運搬船の高い位置に取り付けるステップをさらに含むことを特徴とする、請求項1または2に記載の方法。
- 凝縮圧力を高め、したがって前記熱交換器(500)の配置により高い融通性を持たせることができるように、前記第2の貨物タイプの蒸気を、前記熱交換器(500)の上流で圧縮するステップをさらに含むことを特徴とする、請求項1から4のいずれか一項に記載の方法。
- 電気モータ(1.900)によって前記再液化ユニット(300、400)の往復圧縮機(2.000)を動作させ、可能な場合には、前記電気モータの電力能力を使用するように、前記モータの速度を標準よりも上げるステップをさらに含むことを特徴とする、請求項1から5のいずれか一項に記載の方法。
- LPG運搬船、特に、同じ船荷上の2つの異なるLPGタイプの貨物を有するLPG運搬船上で、LPGを貯蔵し輸送するシステムであって、
該システムは、再液化ユニット(300、400)を有し、該再液化ユニット(300、400)において、蒸発ガスが凝縮され、次いでそれぞれのLPG貨物タイプ用の少なくとも1つの貨物タンク(100)に戻る、LPGを貯蔵し輸送するシステムにおいて、
前記再液化ユニット(300、400)が、少なくとも一方を稼働させて、第1の貨物タイプからの蒸気を凝縮するように使用され、
前記第1の貨物タイプからの凝縮された蒸気が熱交換器(500)を通過し、
同時に、第2の貨物タイプからの蒸気が前記熱交換器(500)を通過して流され凝縮された前記第1の貨物タイプからの蒸気との熱交換によって前記第2の貨物タイプからの蒸気を凝縮し、
前記熱交換器から出た前記第2の貨物タイプからの凝縮された蒸気が前記第2の貨物タイプに戻り、
前記第2の貨物タイプを積載した前記少なくとも1つの貨物タンク(200)に戻る自由流が妨害される場合、前記第2の貨物タイプからの凝縮された蒸気が、配管(7)に位置するポンプ(700)によって送られ、
前記熱交換器(500)から戻った前記第1の貨物タイプの凝縮された蒸気が、分離器を通過し、分離した液体が、前記第1の貨物タイプ用の前記少なくとも1つの貨物タンク(100)に戻り、分離した蒸気が、前記再液化ユニット(300、400)に戻ることを特徴とする、システム。 - 前記再液化ユニット(400)のうちの一方が、待機動作にあるように構成されることを特徴とする、請求項7に記載のシステム。
- 前記熱交換器が、自由流凝縮器(500)であることを特徴とする、請求項7に記載のシステム。
- 前記貨物タイプが、前記それぞれの貨物タイプ用の少なくとも1つの別個のタンク(100、200)で、貨物タンク内に保持されることを特徴とする、請求項7または8に記載のシステム。
- 前記再液化ユニット(300、400)からの凝縮された蒸気が、前記熱交換器(500)の上流のまたは下流で流動ラインに配置された絞り弁(600)を用いて絞られることを特徴とする、請求項7または8に記載のシステム。
- 前記再液化ユニット(300、400)からの凝縮された蒸気が、2段階で絞られることを特徴とする、請求項7から11のいずれか一項に記載のシステム。
- 前記熱交換器(500)が、前記LPG運搬船の高い位置に取り付けられることを特徴とする、請求項7から12のいずれか一項に記載のシステム。
- 前記第2の貨物タイプの蒸気が、前記熱交換器(500)の上流に配置された圧縮機(800)によって圧縮されることを特徴とする、請求項7から12のいずれか一項に記載のシステム。
- 前記再液化ユニット(300、400)の往復圧縮機(2.000)が、電気モータ(1.900)によって動作され、可能な場合には、前記電気モータの速度が標準速度よりも上げられることを特徴とする、請求項7から14のいずれか一項に記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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NO20092477A NO332551B1 (no) | 2009-06-30 | 2009-06-30 | Fremgangsmate og anordning for lagring og transport av flytendegjort petroleumsgass |
NO20092477 | 2009-06-30 |
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US (3) | US9982844B2 (ja) |
EP (1) | EP2448812A4 (ja) |
JP (3) | JP5763556B2 (ja) |
KR (1) | KR101105859B1 (ja) |
CN (2) | CN102300768B (ja) |
AU (1) | AU2010266860B2 (ja) |
DE (1) | DE10794406T8 (ja) |
NO (1) | NO332551B1 (ja) |
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US10006589B2 (en) | 2018-06-26 |
EP2448812A4 (en) | 2017-11-15 |
KR101105859B1 (ko) | 2012-01-16 |
DE10794406T1 (de) | 2012-11-15 |
CN102300768A (zh) | 2011-12-28 |
AU2010266860A1 (en) | 2011-10-27 |
US20160281930A1 (en) | 2016-09-29 |
NO332551B1 (no) | 2012-10-22 |
SG174565A1 (en) | 2011-10-28 |
DE10794406T8 (de) | 2013-04-25 |
JP5763556B2 (ja) | 2015-08-12 |
AU2010266860B2 (en) | 2012-12-20 |
KR20110039584A (ko) | 2011-04-19 |
JP2012519821A (ja) | 2012-08-30 |
JP2014148306A (ja) | 2014-08-21 |
US20160281929A1 (en) | 2016-09-29 |
NO20092477A1 (no) | 2011-01-03 |
CN102300768B (zh) | 2016-02-03 |
JP2016145040A (ja) | 2016-08-12 |
US20120011860A1 (en) | 2012-01-19 |
US9982844B2 (en) | 2018-05-29 |
US9810376B2 (en) | 2017-11-07 |
EP2448812A1 (en) | 2012-05-09 |
CN104964158A (zh) | 2015-10-07 |
CN104964158B (zh) | 2017-05-10 |
WO2011002299A1 (en) | 2011-01-06 |
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