Cold energy recovery for LNG-receiving terminals

Zhang, H; Wang, M; Liu, H; Al-Sobhi, SA; Khalilpour, K

Cold energy recovery for LNG-receiving terminals

Zhang, H Wang, M Liu, H Al-Sobhi, SA Khalilpour, K

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Publisher:: Elsevier
Publication Type:: Chapter
Citation:: Advances in Natural Gas: Formation, Processing, and Applications: Natural Gas Transportation and Storage: Volume 6, 2024, 6, pp. 237-270
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Zhang, H
dc.contributor.author	Wang, M
dc.contributor.author	Liu, H
dc.contributor.author	Al-Sobhi, SA
dc.contributor.author	Khalilpour, K https://orcid.org/0000-0003-4104-2488
dc.date.accessioned	2024-12-28T05:13:15Z
dc.date.available	2024-12-28T05:13:15Z
dc.date.issued	2024-01-01
dc.identifier.citation	Advances in Natural Gas: Formation, Processing, and Applications: Natural Gas Transportation and Storage: Volume 6, 2024, 6, pp. 237-270
dc.identifier.isbn	9780443192258
dc.identifier.uri	http://hdl.handle.net/10453/182762
dc.description.abstract	With the rapid development of the liquefied natural gas (LNG) industry in the past few decades, the expansion of LNG-receiving terminals is thriving. However, the regasification process of LNG releases a large amount of cold energy, which is wasted in many receiving terminals. There is a necessity for more attention to LNG cold energy utilization to improve the efficiency of the LNG supply chain and reduce its emission footprint. This study reviews current technologies in LNG cold energy utilization and explores, in more detail, the case of light hydrocarbon separation. A light hydrocarbon separation unit using LNG cold energy from the regasification process is simulated in Aspen HYSYS, considering three different LNG feed volumes. It is found that the average methane content of lean LNG after recovery can increase to 98% and the recovery rate of C2 + components from LNG can achieve 86%. For an LNG import port with an annual processing capacity of 4 million tonnes (Mt) of LNG, the cold energy being lost is 3400GWh. With the process studied here, it is possible to recover and utilize approximately 30% of the wasted cold energy (1020GWh). Given [thermal] energy prices as low as $10/MWh, this can translate to a $10.2M annual savings, leaving the environmental benefits aside (e.g., a reduction of 0.19 million tonnes of CO2 emissions).
dc.language	en
dc.publisher	Elsevier
dc.relation.ispartof	Advances in Natural Gas: Formation, Processing, and Applications: Natural Gas Transportation and Storage: Volume 6
dc.relation.isbasedon	10.1016/B978-0-443-19225-8.00007-X
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Cold energy recovery for LNG-receiving terminals
dc.type	Chapter
utslib.citation.volume	6
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Visualisation Institute (VI)
utslib.copyright.status	closed_access	*
dc.date.updated	2024-12-28T05:13:13Z
pubs.publication-status	Published
pubs.volume	6

Abstract:

With the rapid development of the liquefied natural gas (LNG) industry in the past few decades, the expansion of LNG-receiving terminals is thriving. However, the regasification process of LNG releases a large amount of cold energy, which is wasted in many receiving terminals. There is a necessity for more attention to LNG cold energy utilization to improve the efficiency of the LNG supply chain and reduce its emission footprint. This study reviews current technologies in LNG cold energy utilization and explores, in more detail, the case of light hydrocarbon separation. A light hydrocarbon separation unit using LNG cold energy from the regasification process is simulated in Aspen HYSYS, considering three different LNG feed volumes. It is found that the average methane content of lean LNG after recovery can increase to 98% and the recovery rate of C2 + components from LNG can achieve 86%. For an LNG import port with an annual processing capacity of 4 million tonnes (Mt) of LNG, the cold energy being lost is 3400GWh. With the process studied here, it is possible to recover and utilize approximately 30% of the wasted cold energy (1020GWh). Given [thermal] energy prices as low as $10/MWh, this can translate to a $10.2M annual savings, leaving the environmental benefits aside (e.g., a reduction of 0.19 million tonnes of CO2 emissions).

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http://hdl.handle.net/10453/182762