Optimization of compression ratio in closed-loop CO2 liquefaction process

Taekyoon Park; Hyungyeol Kwak; Yeonsoo Kim; Jong Min Lee

Korean Journal of Chemical Engineering, Vol.35, No.11, 2150-2156, November, 2018

DOI10.1007/s11814-018-0132-7 Export Citation

Optimization of compression ratio in closed-loop CO2 liquefaction process

Taekyoon Park, Hyungyeol Kwak, Yeonsoo Kim, and Jong Min Lee^†

School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea

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We suggest a systematic method for obtaining the optimal compression ratio in the multi-stage closed-loop compression process of carbon dioxide. Instead of adopting the compression ratio of 3 to 4 by convention, we propose a novel approach based on mathematical analysis and simulation. The mathematical analysis prescribes that the geometric mean is a better initial value than the existing empirical value in identifying the optimal compression ratio. In addition, the optimization problem considers the initial installation cost as well as the energy required for the operation. We find that it is best to use the fifth stage in the general closed-loop type carbon dioxide multi-stage compression process.

Keywords:Carbon Capture;Closed-loop Compression;Compression Ratio;Multi-stage Compression;Geometric Mean

[References]

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[1] Seider WD, Seader JD, Lewin DR, Widagdo S, Synthesis, analysis and design, Wiley, 3rd Ed. (2008).

[2] Konda NVSNM, Rangaiah GP, Lim DKH, Ind. Eng. Chem. Res., 45(17), 5955 (2006)

[3] Luyben WL, Ind. Eng. Chem. Res., 50(24), 13984 (2011)

[4] Lee U, Yang S, Jeong YS, Lim Y, Lee CS, Han C, Ind. Eng. Chem. Res., 51(46), 15122 (2012)

[5] Posch S, Haider M, Fuel, 101, 254 (2012)

[6] Leperi KT, Snurr RQ, You FQ, Ind. Eng. Chem. Res., 55(12), 3338 (2016)

[7] Lee SG, Choi GB, Lee JM, Ind. Eng. Chem. Res., 54(51), 12855 (2015)

[8] Aspelund A, Mølnvik MJ, Koeijer GD, Chem. Eng. Res. Des., 87(9), 847 (2006)

[9] Park T, Lee SG, Kim SH, Lee U, Han C, Lee JM, Int. J. Greenhouse Gas Control, 6, 27 (2016)

[10] Jeon SH, Kim MS, Appl. Therm. Eng., 82, 360 (2015)

[11] Kotowicz J, Brzeczek M, Job M, Int. J. Global Warming, 12(2), 164 (2017)

[12] Moore J, Nored MG, ASME Turbo Expo: Power for Land, Sea, and Air, 7, 645 (2008).

[13] Moshfeghian M, Campbell & Co., Norman, OK, U.S.A. (2013).

[14] Douglas JM, Conceptual Design of Chemical Processes, McGraw-Hill (1988).

[15] CEPCI June 2017 Issue, SCRIBD, https://www.scribd.com/document/352561651/CEPCI-June2017-Issue, Accessed 11 Dec. 2017.