JP6889759B2 - 分割混合冷媒液化システムにおける均衡動力 - Google Patents
分割混合冷媒液化システムにおける均衡動力 Download PDFInfo
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- JP6889759B2 JP6889759B2 JP2019136744A JP2019136744A JP6889759B2 JP 6889759 B2 JP6889759 B2 JP 6889759B2 JP 2019136744 A JP2019136744 A JP 2019136744A JP 2019136744 A JP2019136744 A JP 2019136744A JP 6889759 B2 JP6889759 B2 JP 6889759B2
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- refrigerant
- refrigerant compression
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- cooling
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- 230000006835 compression Effects 0.000 claims description 165
- 238000007906 compression Methods 0.000 claims description 165
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical group CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 claims description 120
- 238000000034 method Methods 0.000 claims description 72
- 238000001816 cooling Methods 0.000 claims description 66
- 239000001294 propane Substances 0.000 claims description 60
- 239000012530 fluid Substances 0.000 claims description 48
- 229930195733 hydrocarbon Natural products 0.000 claims description 43
- 150000002430 hydrocarbons Chemical class 0.000 claims description 43
- 239000004215 Carbon black (E152) Substances 0.000 claims description 41
- 238000013461 design Methods 0.000 claims description 18
- 230000008859 change Effects 0.000 claims description 3
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- 238000003763 carbonization Methods 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 46
- 239000007789 gas Substances 0.000 description 37
- 239000003345 natural gas Substances 0.000 description 20
- 230000008569 process Effects 0.000 description 13
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- 239000007788 liquid Substances 0.000 description 9
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- 238000005057 refrigeration Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
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- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 208000025174 PANDAS Diseases 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Description
a.予備冷却冷媒流の間接熱交換によって炭化水素供給流を予備冷却して、第1の所定範囲内の温度を有する予備冷却炭化水素流体流を生成するステップと、
b.少なくとも1つの圧縮段を有する予備冷却圧縮器内で予備冷却冷媒流を圧縮するステップと、
c.第2の冷媒流の間接熱交換によって予備冷却炭化水素流をさらに冷却し少なくとも部分的に液化して、第2の所定範囲内の温度を有する冷却炭化水素流体流を生成するステップと、
d.複数の圧縮段を含む圧縮シーケンスで第2の冷媒流を圧縮するステップと、
e.第1の最大利用可能動力を有する第1のドライバを用いて予備冷却圧縮器および複数の第2の冷媒圧縮段のうちの少なくとも1つの第2の冷媒圧縮段を駆動するステップと、
f.第2の最大利用可能動力を有する第2のドライバを用いて複数の混合冷媒圧縮段のうちの他の第2の冷媒圧縮段を駆動するステップと、
g.第1の動力要件で少なくとも1つの第2の冷媒圧縮段を操作し、その結果、第1および第2のドライバによって利用される第1の総合動力が得られるステップと、
h.少なくとも1つの第2の冷媒圧縮段の動力要件を第2の動力要件に調整するステップと、
i.第2の動力要件で少なくとも1つの第2の冷媒圧縮段を操作し、その結果、第1および第2のドライバによって利用される第2の総合動力が得られ、第2の総合動力は第1の総合動力よりも大きいステップと、を含む、方法。
複数の第2の冷媒圧縮段および少なくとも1つの液化熱交換器を有する液化サブシステムであって、第2の冷媒流の間接熱交換によって予備冷却炭化水素流を少なくとも部分的に液化して冷却炭化水素流体流を生成するように適合されている、液化サブシステムと、
予備冷却圧縮器および複数の第2の冷媒圧縮段のうちの少なくとも1つの第2の冷媒圧縮段を駆動する第1のドライバと、
複数の第2の冷媒圧縮段のうちの他の第2の冷媒圧縮段を駆動する第2のドライバと、
少なくとも1つの第2の冷媒圧縮段の動力要件を変えるための手段と、
第1のドライバの第1の動力状態および第2のドライバの第2の動力状態を測定し、少なくとも1つの第2の冷媒圧縮段の動力要件、第1のドライバの第1の動力状態、第2のドライバの第2の動力状態、ならびに炭化水素供給流および予備冷却炭化水素流の群から選択される少なくとも1つの流速を制御するように適合されているコントローラと、を含む、システム。
a.第1の流速で供給される炭化水素供給流を、予備冷却冷媒流および第1の所定範囲内の温度を有する予備冷却炭化水素流体流の間接熱交換によって予備冷却するステップと、
b.少なくとも1つの圧縮段を有する予備冷却圧縮器内で予備冷却冷媒流を圧縮するステップと、
c.第2の冷媒流の間接熱交換によって予備冷却炭化水素流をさらに冷却し少なくとも部分的に液化して、第2の所定範囲内の温度を有する冷却炭化水素流体流を生成するステップと、
d.第1の組の第2の冷媒圧縮段および第2の組の第2の冷媒圧縮段からなる複数の第2の冷媒圧縮段を含む圧縮シーケンスで第2の冷媒流を圧縮するステップと、
e.第1のドライバを用いて予備冷却圧縮器および第1の組の第2の冷媒圧縮段を駆動するステップと、
f.第2のドライバを用いて第2の組の第2の冷媒圧縮段を駆動するステップと、
g.第1のドライバと第2のドライバとの間に第1の動力差動が生じる第1の動力要件で少なくとも1つの第1の組の第2の冷媒圧縮段を操作するステップと、
h.少なくとも1つの第1の組の第2の冷媒圧縮段の圧縮動力要件を調整し、その結果、第1のドライバと第2のドライバとの間に第2の動力差動が得られ、第2の動力差動は第1の動力差動よりも小さいステップと、
i.ステップ(h)と同時に又はステップ(h)を実施した後に炭化水素供給流の第1の流速を第2の流速に増加させ、一方で予備冷却炭化水素流体流の温度を第1の所定範囲内に、冷却炭化水素流体流の温度を第2の所定の範囲内に維持するステップと、を含む、方法。
Claims (34)
- 炭化水素流体液化システムを操作する方法であって、方法は、
a.予備冷却冷媒流の間接熱交換によって炭化水素供給流を予備冷却して、第1の所定範囲内の温度を有する予備冷却炭化水素流体流を生成するステップと、
b.少なくとも1つの圧縮段を有する予備冷却圧縮器内で予備冷却冷媒流を圧縮するステップと、
c.第2の冷媒流の間接熱交換によって予備冷却炭化水素流をさらに冷却し少なくとも部分的に液化して、第2の所定範囲内の温度を有する冷却炭化水素流体流を生成するステップと、
d.複数の圧縮段を含む圧縮シーケンスで第2の冷媒流を圧縮するステップと、
e.第1の最大利用可能動力を有する第1のドライバを用いて予備冷却圧縮器および複数の第2の冷媒圧縮段のうちの少なくとも1つの第2の冷媒圧縮段を駆動するステップと、
f.第2の最大利用可能動力を有する第2のドライバを用いて複数の第2の冷媒圧縮段のうちの他の第2の冷媒圧縮段を駆動するステップと、
g.第1の動力要件で少なくとも1つの第2の冷媒圧縮段を操作し、その結果、第1および第2のドライバによって利用される第1の総合動力が得られるステップと、
h.少なくとも1つの第2の冷媒圧縮段の特性を独立して変更し、それにより、少なくとも1つの第2の冷媒圧縮段の動力要件を第2の動力要件に調整するステップと、
i.第2の動力要件で少なくとも1つの第2の冷媒圧縮段を操作し、その結果、第1および第2のドライバによって利用される第2の総合動力が得られ、第2の総合動力は第1の総合動力よりも大きいステップと、を含む、方法。 - ステップ(e)が、前記第1のドライバが前記第1の最大利用可能動力を有する状態で前記予備冷却圧縮器および前記複数の第2の冷媒圧縮段のうちの少なくとも1つの第2の冷媒圧縮段を駆動するステップを含み、前記少なくとも1つの第2の冷媒圧縮段は、前記複数の第2の冷媒圧縮段のうちの他のいずれの圧縮段よりも大きい吐出圧力を有する、請求項1に記載の方法。
- 周囲温度が所定の設計周囲温度の外側にあるステップ(h)を実行するステップをさらに含む、請求項1に記載の方法。
- 周囲温度が所定の設計周囲温度より高いステップ(h)を実行するステップをさらに含む、請求項1に記載の方法。
- ステップ(h)が、前記少なくとも1つの第2の冷媒圧縮段の前記動力要件を低下させるステップを含む、請求項4に記載の方法。
- ステップ(g)が、第1の動力要件で少なくとも1つの第2の冷媒圧縮段を操作し、その結果、前記第1および第2のドライバによって利用される第1の総合動力が得られるステップを含み、前記少なくとも1つの第2の冷媒圧縮段および前記予備冷却圧縮器の圧縮要求の結果として、前記第1および第2のドライバのうちの一方が最大利用可能動力を供給し、別の前記第1および第2のドライバが最大利用可能動力を供給しない、請求項1に記載の方法。
- 前記少なくとも1つの第2の冷媒圧縮段の動力要件を第2の動力要件に調整するステップが、前記少なくとも1つの第2の冷媒圧縮段の吸込側と流体流連通する吸込絞りバルブの位置を調整するステップを含む、請求項1に記載の方法。
- 前記少なくとも1つの第2の冷媒圧縮段の動力要件を第2の動力要件に調整するステップが、前記少なくとも1つの第2の冷媒圧縮段に位置付けされた一組の調節可能な入口案内翼の位置を変えるステップを含む、請求項7に記載の方法。
- 前記少なくとも1つの第2の冷媒圧縮段の動力要件を第2の動力要件に調整するステップが、前記予備冷却圧縮器と前記第1のドライバのドライブシャフト上の前記少なくとも1つの第2の冷媒圧縮段との間に位置付けされた可変速ギアボックスのギア比を変えるステップを含む、請求項1に記載の方法。
- 前記第2の冷媒が混合冷媒を含む、請求項1に記載の方法。
- 前記予備冷却冷媒がプロパンからなる、請求項1に記載の方法。
- 前記予備冷却冷媒流が混合冷媒からなる、請求項1に記載の方法。
- 少なくとも1つの第1の冷媒圧縮段および少なくとも1つの予備冷却熱交換器を有する予備冷却圧縮器を有する予備冷却サブシステムであって、第1の冷媒流の間接熱交換によって炭化水素供給流を冷却して予備冷却炭化水素流体流を生成するように適合されている、予備冷却サブシステムと、
複数の第2の冷媒圧縮段および少なくとも1つの液化熱交換器を有する液化サブシステムであって、第2の冷媒流の間接熱交換によって予備冷却炭化水素流を少なくとも部分的に液化して冷却炭化水素流体流を生成するように適合されている、液化サブシステムと、
予備冷却圧縮器および複数の第2の冷媒圧縮段のうちの少なくとも1つの第2の冷媒圧縮段を駆動する第1のドライバと、
複数の第2の冷媒圧縮段のうちの他の第2の冷媒圧縮段を駆動する第2のドライバと、
少なくとも1つの第2の冷媒圧縮段の特性を独立して変更して、その動力要件を変えるための手段と、
第1のドライバの第1の動力状態および第2のドライバの第2の動力状態を測定し、少なくとも1つの第2の冷媒圧縮段の動力要件、第1のドライバの第1の動力状態、第2のドライバの第2の動力状態、ならびに炭化水素供給流および予備冷却炭化水素流の群から選択される少なくとも1つの流速を制御するように適合されているコントローラと、を含む、システム。 - 前記コントローラが、前記少なくとも1つの第2の冷媒圧縮段の動力要件を変えるための前記手段を調整することによって前記第1の動力状態と前記第2の動力状態との間の差を減少させるようにプログラムされている、請求項13に記載のシステム。
- 前記少なくとも1つの第2の冷媒圧縮段が、前記複数の第2の冷媒圧縮段のうちの他のいずれの第2の冷媒圧縮段よりも大きい吐出圧力を有する、請求項13に記載のシステム。
- 前記少なくとも1つの第2の冷媒圧縮段の動力要件を変えるための前記手段が、前記少なくとも1つの第2の冷媒圧縮段の吸込側と流体流連通する吸込絞りバルブを含む、請求項13に記載のシステム。
- 前記少なくとも1つの第2の冷媒圧縮段の動力要件を変えるための手段が、前記少なくとも1つの第2の冷媒圧縮段の吸込側と流体流連通している一組の調整可能な案内翼を含む、請求項13に記載のシステム。
- 前記少なくとも1つの第2の冷媒圧縮段の動力要件を変えるための手段が、前記予備冷却圧縮器と前記第1のドライバのドライブシャフト上の前記少なくとも1つの第2の冷媒圧縮段との間に位置付けされた可変速ギアボックスを含む、請求項13に記載のシステム。
- 前記第1のドライバが、並列に配置された少なくとも2つのドライバを含む、請求項13に記載のシステム。
- 前記第2のドライバが、並列に配置された少なくとも2つのドライバを含む、請求項13に記載のシステム。
- 前記第2の冷媒流が、混合冷媒を含む、請求項13に記載のシステム。
- 前記第1の冷媒流が、プロパンからなる、請求項13に記載のシステム。
- 前記予備冷却冷媒流が、混合冷媒からなる、請求項13に記載のシステム。
- 炭化水素流体液化システムを操作する方法であって、方法は、
a.第1の流速で供給される炭化水素供給流を、予備冷却冷媒流との間接熱交換によって予備冷却して第1の所定範囲内の温度を有する予備冷却炭化水素流体流を生成するステップと、
b.少なくとも1つの圧縮段を有する予備冷却圧縮器内で予備冷却冷媒流を圧縮するステップと、
c.第2の冷媒流の間接熱交換によって予備冷却炭化水素流をさらに冷却し少なくとも部分的に液化して、第2の所定範囲内の温度を有する冷却炭化水素流体流を生成するステップと、
d.第1の組の第2の冷媒圧縮段および第2の組の第2の冷媒圧縮段からなる複数の第2の冷媒圧縮段を含む圧縮シーケンスで第2の冷媒流を圧縮するステップと、
e.第1のドライバを用いて予備冷却圧縮器および第1の組の第2の冷媒圧縮段を駆動するステップと、
f.第2のドライバを用いて第2の組の第2の冷媒圧縮段を駆動するステップと、
g.第1のドライバと第2のドライバとの間に第1の動力差動が生じる第1の動力要件で少なくとも1つの第1の組の第2の冷媒圧縮段を操作するステップと、
h.少なくとも1つの第1の組の第2の冷媒圧縮段の特性を独立して変更し、それにより、少なくとも1つの第1の組の第2の冷媒圧縮段の圧縮動力要件を調整し、その結果、第1のドライバと第2のドライバとの間に第2の動力差動が得られ、第2の動力差動は第1の動力差動よりも小さいステップと、
i.ステップ(h)と同時に又はステップ(h)を実施した後に炭化水素供給流の第1の流速を第2の流速に増加させ、一方で予備冷却炭化水素流体流の温度を第1の所定範囲内に、冷却炭化水素流体流の温度を第2の所定の範囲内に維持するステップと、を含む、方法。 - ステップ(e)が、前記予備冷却圧縮器および前記第1の組の第2の冷媒圧縮段を第1のドライバで駆動するステップを含み、前記第1の組の第2の冷媒圧縮段は、前記第2の組の第2の冷媒圧縮段のいずれよりも大きい吐出圧力を有する段からなる、請求項24に記載の方法。
- 周囲温度が所定の設計周囲温度の外側にあるステップ(h)を実行するステップをさらに含む、請求項24に記載の方法。
- 周囲温度が所定の設計周囲温度より高いステップ(h)を実行するステップをさらに含む、請求項24に記載の方法。
- ステップ(h)が、少なくとも1つの前記第1の組の第2の冷媒圧縮段の前記動力要件を低下させるステップを含む、請求項27に記載の方法。
- 少なくとも1つの前記第1の組の第2の冷媒圧縮段の前記圧縮動力要件を調整するステップが、前記少なくとも1つの前記第1の組の第2の冷媒圧縮段の吸込側と流体流連通する吸込絞りバルブの位置を調整するステップを含む、請求項24に記載の方法。
- 少なくとも1つの前記第1の組の第2の冷媒圧縮段の前記圧縮動力要件を調整するステップが、前記少なくとも1つの前記第1の組の第2の冷媒圧縮段に位置付けされた一組の調整可能な入口案内翼の位置を変えるステップを含む、請求項24に記載の方法。
- 少なくとも1つの前記第1の組の第2の冷媒圧縮段の前記圧縮動力要件を調整するステップが、前記予備冷却圧縮器と前記第1のドライバのドライブシャフト上の前記少なくとも1つの前記第1の組の第2の冷媒圧縮段との間に位置付けされた可変速ギアボックスのギア比を変えるステップを含む、請求項24に記載の方法。
- 前記第2の冷媒流が、混合冷媒を含む、請求項24に記載の方法。
- 前記予備冷却冷媒流が、プロパンからなる、請求項24に記載の方法。
- 前記予備冷却冷媒流が混合冷媒からなる、請求項24に記載の方法。
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JP (1) | JP6889759B2 (ja) |
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CN (2) | CN110793231B (ja) |
AU (1) | AU2019208279B2 (ja) |
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US10935312B2 (en) * | 2018-08-02 | 2021-03-02 | Air Products And Chemicals, Inc. | Balancing power in split mixed refrigerant liquefaction system |
CN115031490B (zh) * | 2022-06-18 | 2023-03-24 | 华海(北京)科技股份有限公司 | 节能型液化天然气冷能空分系统 |
WO2024096757A1 (en) * | 2022-11-02 | 2024-05-10 | Gasanova Olesya Igorevna | Natural gas liquefaction method |
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GB1181049A (en) * | 1967-12-20 | 1970-02-11 | Messer Griesheim Gmbh | Process for the Liquifaction of Natural Gas |
US3763658A (en) | 1970-01-12 | 1973-10-09 | Air Prod & Chem | Combined cascade and multicomponent refrigeration system and method |
US5791160A (en) | 1997-07-24 | 1998-08-11 | Air Products And Chemicals, Inc. | Method and apparatus for regulatory control of production and temperature in a mixed refrigerant liquefied natural gas facility |
GC0000279A (en) | 2000-04-25 | 2006-11-01 | Shell Int Research | Controlling the production of a liquefied natural gas product stream |
DE102004023814A1 (de) * | 2004-05-13 | 2005-12-01 | Linde Ag | Verfahren und Vorrichtung zum Verflüssigen eines Kohlenwasserstoff-reichen Stromes |
US7712299B2 (en) * | 2006-09-05 | 2010-05-11 | Conocophillips Company | Anti-bogdown control system for turbine/compressor systems |
CN101449115B (zh) * | 2007-04-27 | 2011-09-14 | 株式会社日立制作所 | 冷却循环系统、天然气液化设备、冷却循环系统的运转方法及改造方法 |
AU2009228000B2 (en) * | 2008-09-19 | 2013-03-07 | Woodside Energy Limited | Mixed refrigerant compression circuit |
FR2943125B1 (fr) * | 2009-03-13 | 2015-12-18 | Total Sa | Procede de liquefaction de gaz naturel a cycle combine |
US8210828B2 (en) * | 2010-03-30 | 2012-07-03 | Ford Global Technologies, Llc | Methods and systems for assisted direct start control |
EP2604960A1 (en) | 2011-12-15 | 2013-06-19 | Shell Internationale Research Maatschappij B.V. | Method of operating a compressor and system and method for producing a liquefied hydrocarbon stream |
RU2570795C1 (ru) * | 2014-07-15 | 2015-12-10 | Игорь Анатольевич Мнушкин | Газоперерабатывающий и газохимический комплекс |
US10180282B2 (en) * | 2015-09-30 | 2019-01-15 | Air Products And Chemicals, Inc. | Parallel compression in LNG plants using a positive displacement compressor |
US10359228B2 (en) * | 2016-05-20 | 2019-07-23 | Air Products And Chemicals, Inc. | Liquefaction method and system |
ITUA20164168A1 (it) | 2016-06-07 | 2017-12-07 | Nuovo Pignone Tecnologie Srl | Treno di compressione con due compressori centrifughi e impianto lng con due compressori centrifughi |
IT201600109378A1 (it) * | 2016-10-28 | 2018-04-28 | Nuovo Pignone Tecnologie Srl | Sistema di liquefazione di gas naturale comprendente un turbocompressore con moltiplicatore integrato |
US10935312B2 (en) * | 2018-08-02 | 2021-03-02 | Air Products And Chemicals, Inc. | Balancing power in split mixed refrigerant liquefaction system |
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JP2020020567A (ja) | 2020-02-06 |
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RU2019124185A (ru) | 2021-02-01 |
RU2766164C2 (ru) | 2022-02-08 |
CN110793231B (zh) | 2022-02-11 |
CA3050798A1 (en) | 2020-02-02 |
US10935312B2 (en) | 2021-03-02 |
AU2019208279B2 (en) | 2021-09-09 |
KR102282314B1 (ko) | 2021-07-26 |
CA3050798C (en) | 2021-11-23 |
RU2019124185A3 (ja) | 2021-12-09 |
AU2019208279A1 (en) | 2020-02-20 |
CN110793231A (zh) | 2020-02-14 |
US20200041203A1 (en) | 2020-02-06 |
EP3604993A2 (en) | 2020-02-05 |
EP3604993A3 (en) | 2020-04-08 |
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