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Received July 9, 2010
Accepted November 17, 2010
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Dynamic simulation and optimization of the operation of boil-off gas compressors in a liquefied natural gas gasification plant
School of Chemical and Biological Engineering, ASRI, Seoul National University, Seoul 151-742, Korea 1Incheon Terminal Division, Korea Gas Corporation, Incheon 406-130, Korea 2Division of Chemical Engineering, Chonbuk National University, Jeonju 561-756, Korea
Korean Journal of Chemical Engineering, May 2011, 28(5), 1166-1171(6), 10.1007/s11814-010-0487-x
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Abstract
We propose an algorithm for the optimal operation schedule of the BOG compression process based on simulation of the dynamic behavior of an LNG tank. The algorithm uses an empirical boil-off rate model to predict the amount of BOG generation, and an MILP formulation to distribute the BOG compressors loads. Finally, a safety analysis is done using a dynamic simulator. To improve the accuracy, Aspen Dynamics with the Peng-Robinson equation of state is used in place of a simplified dynamic model used before. The dynamic simulation of the LNG tank pressure showed the results of oscillation within a safe pressure range while the BOG compressors were operated normally. The performance of the proposed algorithm was found to be superior to the algorithm used in routine processes as well as those from previous works in terms of safety and energy savings.
References
Lemmers SPB, Fluor Haarlem BV, Hydrocarbon Processing., 84, 55 (2005)
Kim DH, Lee JH, Kim HY, Baek YS, J. Korean Inst. Gas., 5(3), 22 (2001)
Shin MW, Lee G, Shin D, Choi SH, Yoon ES, Proceedings of the 2nd International Symposium on Advanced Control of Industrial Processes (AdCONIP'05), 166 (2005)
Shin MW, Shin D, Choi SH, Yoon ES, Korean J. Chem. Eng., 25(1), 7 (2008)
Shin MW, Shin D, Choi SH, Yoon ES, Han CG, Ind. Eng. Chem. Res., 46(20), 6540 (2007)
Kim DH, Park Y, Yoon IK, Ha JM, Park YS, A study on the optimization of process operation for the efficiency improvement of LNG receiving terminal, Korea Gas Corporation R&D Center Report (2001)
Nasrifar K, Moshfeghian M, Fluid Phase Equilib., 200(1), 203 (2002)
Nasrifar K, Moshfeghian M, Fluid Phase Equilibria., 158, 437 (1999)
Woodward JL, J. Hazard. Mater., 140(3), 478 (2007)
Alderman JA, Process Safety Progress., 24(3), 144 (2005)
Eisentrout B, LNG Journal., February, 28 (2007)
Kim DH, Lee JH, Kim HY, Baek YS, J. Korean Inst. Gas., 5(3), 22 (2001)
Shin MW, Lee G, Shin D, Choi SH, Yoon ES, Proceedings of the 2nd International Symposium on Advanced Control of Industrial Processes (AdCONIP'05), 166 (2005)
Shin MW, Shin D, Choi SH, Yoon ES, Korean J. Chem. Eng., 25(1), 7 (2008)
Shin MW, Shin D, Choi SH, Yoon ES, Han CG, Ind. Eng. Chem. Res., 46(20), 6540 (2007)
Kim DH, Park Y, Yoon IK, Ha JM, Park YS, A study on the optimization of process operation for the efficiency improvement of LNG receiving terminal, Korea Gas Corporation R&D Center Report (2001)
Nasrifar K, Moshfeghian M, Fluid Phase Equilib., 200(1), 203 (2002)
Nasrifar K, Moshfeghian M, Fluid Phase Equilibria., 158, 437 (1999)
Woodward JL, J. Hazard. Mater., 140(3), 478 (2007)
Alderman JA, Process Safety Progress., 24(3), 144 (2005)
Eisentrout B, LNG Journal., February, 28 (2007)
