Simulation of CO2 removal in a split-flow gas sweetening process

Hyung Kun Bae; Sung Young Kim; Bomsock Lee

Korean Journal of Chemical Engineering, Vol.28, No.3, 643-648, March, 2011

DOI10.1007/s11814-010-0446-6 Export Citation

Simulation of CO2 removal in a split-flow gas sweetening process

Hyung Kun Bae, Sung Young Kim, and Bomsock Lee^†

Department of Chemical Engineering, College of Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do 446-701, Korea

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Split-flow gas sweetening is known to consume less energy than a conventional gas sweetening process when the inlet sour gas contains a high concentration of acid gases. In this work, a computer simulation of a split-flow natural gas sweetening process based on absorption/stripping process with alkanoamine (MEA and DGA) solutions, using Aspen plus, was performed. The input of parameters such as the concentration of sour gases (CO2, H2S) in the feed gas has been examined. Simulation results show that the split-flow gas sweetening process can reduce the reboiler duty of a stripping tower better than the conventional gas sweetening process according to the concentration of CO2 in the feed gas.

Keywords:Split-flow;CO2 Removal;Gas Sweetening;Aspen Plus

[References]

Mohebbi V, Behbahani RM, Moshfeghian M, Oil Gas J., 105(28), 70 (2007)
Bhide BD, Voskericyan A, Stern SA, J. Membr. Sci., 140(1), 27 (1998)
Idem R, Wilson M, Tontiwachwuthikul P, Chakma A, Veawab A, Aroonwilas A, Gelowitz D, Ind. Eng. Chem. Res., 45(8), 2414 (2006)
Ball T, Veldman R, Chem. Eng. Prog., 87, 67 (1991)
Weiland RH, Rawal M, Rice RG, AIChE J., 28(6), 963 (1982)
Weiland RH, Dingman JC, GasTIPS®., 8(1), 21 (2002)
Kvamsdal HM, Rochelle GT, Ind. Eng. Chem. Res., 47(3), 867 (2008)
Lee S, Song HJ, Maken S, Yoo SK, Park JW, Kim S, Shim JG, Jang KR, Korean J. Chem. Eng., 25(1), 1 (2008)
Mofarahi M, Khojasteh Y, Khaledi H, Farahnak A, Energy, 33(8), 1311 (2008)
Ko MS, Park CI, Kim HY, J. Korean Inst. Gas., 7(3), 7 (2003)
Rahimpour MR, Kashkooli AZ, Chem. Eng. Process., 43(7), 857 (2004)
Aspen Technology Inc., Technical report, Physical Property Methods and Models.
Lyddon L, Nguyen H, Analysis of various flow schemes for sweetening with amines, Bryan Research and Engineering, Inc. (2006)
Polasek JC, Bullin JA, Donnelly ST, Alternative flow schemes to reduce capital and operating costs of amine sweetening units, Bryan Research and Engineering, Inc. (2006)
Kent RL, Eisenberg B, Hydrocarbon Processing., 55(2), 87 (1976)
Kidnay AJ, Parrish WR, Fundamentals of natural gas processing., Taylor&Francis Group, Boca Raton (2006)
Moore TF, Dingman JC, Johnson FL, Jr., Environmental Progress., Texaco Chemical Company, Austin, TX 78761, 3(3), 207 (1984)

[Referenced By]

[Related Articles]

[1] Mohebbi V, Behbahani RM, Moshfeghian M, Oil Gas J., 105(28), 70 (2007)

[2] Bhide BD, Voskericyan A, Stern SA, J. Membr. Sci., 140(1), 27 (1998)

[3] Idem R, Wilson M, Tontiwachwuthikul P, Chakma A, Veawab A, Aroonwilas A, Gelowitz D, Ind. Eng. Chem. Res., 45(8), 2414 (2006)

[4] Ball T, Veldman R, Chem. Eng. Prog., 87, 67 (1991)

[5] Weiland RH, Rawal M, Rice RG, AIChE J., 28(6), 963 (1982)

[6] Weiland RH, Dingman JC, GasTIPS®., 8(1), 21 (2002)

[7] Kvamsdal HM, Rochelle GT, Ind. Eng. Chem. Res., 47(3), 867 (2008)

[8] Lee S, Song HJ, Maken S, Yoo SK, Park JW, Kim S, Shim JG, Jang KR, Korean J. Chem. Eng., 25(1), 1 (2008)

[9] Mofarahi M, Khojasteh Y, Khaledi H, Farahnak A, Energy, 33(8), 1311 (2008)

[10] Ko MS, Park CI, Kim HY, J. Korean Inst. Gas., 7(3), 7 (2003)

[11] Rahimpour MR, Kashkooli AZ, Chem. Eng. Process., 43(7), 857 (2004)

[12] Aspen Technology Inc., Technical report, Physical Property Methods and Models.

[13] Lyddon L, Nguyen H, Analysis of various flow schemes for sweetening with amines, Bryan Research and Engineering, Inc. (2006)

[14] Polasek JC, Bullin JA, Donnelly ST, Alternative flow schemes to reduce capital and operating costs of amine sweetening units, Bryan Research and Engineering, Inc. (2006)

[15] Kent RL, Eisenberg B, Hydrocarbon Processing., 55(2), 87 (1976)

[16] Kidnay AJ, Parrish WR, Fundamentals of natural gas processing., Taylor&Francis Group, Boca Raton (2006)

[17] Moore TF, Dingman JC, Johnson FL, Jr., Environmental Progress., Texaco Chemical Company, Austin, TX 78761, 3(3), 207 (1984)