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Simulation, exergy analysis and application of diabatic distillation to a tertiary amyl methyl ether production unit of a crude oil refinery

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  • Rivero, R.
  • Garcia, M.
  • Urquiza, J.

Abstract

This paper presents the results of a detailed exergy analysis of a tertiary amyl methyl ether (TAME) unit of a crude oil refinery and the application of diabatic distillation to the depentanizer tower of the unit. Diabatic distillation is a separation process in which heat is not only supplied to the reboiler and extracted from the condenser [as in a conventional (adiabatic) distillation column], but is also transferred inside the column. The process enables operation to approach equilibrium conditions, thus reducing exergy losses and increasing exergy effectiveness. In a TAME unit of a refinery, isoamylenes are converted to TAME. Before transforming the isoamylenes in the reactors, it is necessary to recover them from a catalytic gasoline stream by a depentanization process. The exergy losses of this depentanization process represent about 70% of the total exergy losses of the unit. The results of the exergy analysis of the TAME unit are presented and a detailed exergy analysis of the conventional adiabatic depentanizer column is conducted for comparison purposes. Then, the application of diabatic distillation to the system is evaluated by using cooling water circulating in series from tray to tray in the rectification section and by making the steam emanating from the reboiler circulate in series from tray to tray in the stripping section. The results in terms of the reduction of exergy losses, heating and cooling media flow rates, and cost effectiveness of the diabatic option for the depentanizer section of the plant are compared to the original adiabatic system, and the effect of the diabatization on the overall exergy performance parameters of the depentanizer section and on the whole TAME unit, are presented in this paper.

Suggested Citation

  • Rivero, R. & Garcia, M. & Urquiza, J., 2004. "Simulation, exergy analysis and application of diabatic distillation to a tertiary amyl methyl ether production unit of a crude oil refinery," Energy, Elsevier, vol. 29(3), pages 467-489.
    • Handle: RePEc:eee:energy:v:29:y:2004:i:3:p:467-489
    DOI: 10.1016/j.energy.2003.10.007
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    Cited by:

    1. Nguyen, Nghi & Demirel, Yaşar, 2010. "Retrofit of distillation columns in biodiesel production plants," Energy, Elsevier, vol. 35(4), pages 1625-1632.
    2. Khoa, T.D. & Shuhaimi, M. & Nam, H.M., 2012. "Application of three dimensional exergy analysis curves for absorption columns," Energy, Elsevier, vol. 37(1), pages 273-280.
    3. Suphanit, B. & Bischert, A. & Narataruksa, P., 2007. "Exergy loss analysis of heat transfer across the wall of the dividing-wall distillation column," Energy, Elsevier, vol. 32(11), pages 2121-2134.
    4. Silva, J.A.M. & Oliveira, S., 2014. "An exergy-based approach to determine production cost and CO2 allocation in refineries," Energy, Elsevier, vol. 67(C), pages 607-616.
    5. Hessam Golmohamadi & Amin Asadi, 2020. "Integration of Joint Power-Heat Flexibility of Oil Refinery Industries to Uncertain Energy Markets," Energies, MDPI, vol. 13(18), pages 1-25, September.
    6. Zhang, Xiaosong & Han, Wei & Hong, Hui & Jin, Hongguang, 2009. "A chemical intercooling gas turbine cycle with chemical-looping combustion," Energy, Elsevier, vol. 34(12), pages 2131-2136.
    7. Chen, Ting & Zhang, Bingjian & Chen, Qinglin, 2014. "Heat integration of fractionating systems in para-xylene plants based on column optimization," Energy, Elsevier, vol. 72(C), pages 311-321.
    8. Alcántara-Avila, J.Rafael & Sotowa, Ken-Ichiro & Horikawa, Toshihide, 2015. "Entropy production and economic analysis in diabatic distillation columns with heat exchangers in series," Energy, Elsevier, vol. 93(P2), pages 1719-1730.
    9. Hernández, Salvador & Gabriel Segovia-Hernández, Juan & Rico-Ramírez, Vicente, 2006. "Thermodynamically equivalent distillation schemes to the Petlyuk column for ternary mixtures," Energy, Elsevier, vol. 31(12), pages 2176-2183.
    10. Khoa, T.D. & Shuhaimi, M. & Hashim, H. & Panjeshahi, M.H., 2010. "Optimal design of distillation column using three dimensional exergy analysis curves," Energy, Elsevier, vol. 35(12), pages 5309-5319.
    11. Nur Izyan, Z. & Shuhaimi, M., 2014. "Exergy analysis for fuel reduction strategies in crude distillation unit," Energy, Elsevier, vol. 66(C), pages 891-897.

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