Retrofit design of a boil-off gas handling process in liquefied natural gas receiving terminals

Park, Chansaem; Song, Ki-Wook; Lee, Sang-Ho; Lim, Young-Jin; Han, Chonghun

doi:10.1016/j.energy.2012.02.053

Cited by 43 publications

(33 citation statements)

References 13 publications

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“…VRP is commonly used in LNG terminals for handling boil-off gas (Park et al, 2012). When the working fluid from a condenser is pressurized, it is no longer saturated but subcooled.…”

Section: Multi Component Orcmentioning

confidence: 99%

Simulation and optimization of multi-component organic Rankine cycle integrated with post-combustion capture process

Lee

Han

2015

Computers & Chemical Engineering

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“…VRP is commonly used in LNG terminals for handling boil-off gas (Park et al, 2012). When the working fluid from a condenser is pressurized, it is no longer saturated but subcooled.…”

Section: Multi Component Orcmentioning

confidence: 99%

Simulation and optimization of multi-component organic Rankine cycle integrated with post-combustion capture process

Lee

Han

2015

Computers & Chemical Engineering

Self Cite

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“…Consequently, the HP compressors are employed to send the BOG to the NG pipes. This BOG handling process is simple, but the operating energy consumption is higher than the recondensation way [32].…”

Section: Problem Statementmentioning

confidence: 99%

“…Various researches recover the LNG cold energy for utilization [11,12,[19][20][21]. Many studies investigate the design optimization of BOG handling process to improve the energy efficiency while ensuring the system safety [32][33][34][35]. Studies on BOG compressor systems have also been done [24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

MINLP Model for Operational Optimization of LNG Terminals

Xiaoyan

Zhao

2021

Processes

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Liquefied natural gas (LNG) is a clear and promising fossil fuel which emits less greenhouse gas (GHG) and has almost no environmentally damaging sulfur dioxide compared with other fossil fuels. An LNG import terminal is a facility that regasifies LNG into natural gas, which is supplied to industrial and residential users. Modeling and optimization of the LNG terminals may reduce energy consumption and GHG emission. A mixed-integer nonlinear programming model of the LNG terminal is developed to minimize the energy consumption, where the numbers of boil-off gas (BOG) compressors and low-pressure (LP) pumps are considered as integer variables. A case study from an actual LNG terminal is carried out to verify the practicality of the proposed method. Results show that the proposed approach can decrease the operating energy consumption from 9.15% to 26.1% for different seasons.

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“…Lee et al 11 and Park et al 12, using dynamic simulation technology, optimized the unloading operation and the LNG recirculation flow rate to reduce the BOG as well as the system energy consumption. They also suggested an energy‐efficient concept design of a BOG handling system, which utilizes the LNG cryogenic energy to intercool the BOG compressor 13. Li et al 4 and Li and Chen 14 optimized the control system of a BOG handling system and then verified the reliability of the proposed control system through dynamic simulation.…”

Section: Design and Feasibility Analysis Of The Bog Two‐stage Comprmentioning

confidence: 99%

Boil‐Off Gas Two‐Stage Compression and Recondensation Process at a Liquefied Natural Gas Receiving Terminal

Wen

2016

Chem Eng & Technol

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Due to ship unloading and the change of downstream gas consumption, the boiloff gas (BOG) and liquefied natural gas outputs fluctuate constantly, causing difficulties in both the design and operation of the BOG handling process. The high energy consumption, instability, and inflexibility of the original process affect the operation cost and running safety of the terminal to a large extent. To address these problems, a two-stage compression and recondensation process is designed and optimized, based on the original one. Compared with the original process through dynamic simulation, the design process has better stability, benefiting from lower operating pressure and smaller fluctuations of both the pressure and the liquid level in the recondenser. In addition, the power and BOG emission are remarkably reduced, which will soon bring great benefit and recovery of investment cost.

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Retrofit design of a boil-off gas handling process in liquefied natural gas receiving terminals

Cited by 43 publications

References 13 publications

Simulation and optimization of multi-component organic Rankine cycle integrated with post-combustion capture process

Simulation and optimization of multi-component organic Rankine cycle integrated with post-combustion capture process

MINLP Model for Operational Optimization of LNG Terminals

Boil‐Off Gas Two‐Stage Compression and Recondensation Process at a Liquefied Natural Gas Receiving Terminal

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