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Exergy analysis for fuel reduction strategies in crude distillation unit

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  • Nur Izyan, Z.
  • Shuhaimi, M.

Abstract

Inefficient furnaces and heat exchangers contribute to the depletion of fossil fuel problem due to higher fuel demand and higher carbon emission. The method of exergy analysis is applied to the furnace and crude preheat train (CPT) in a crude distillation unit (CDU) to determine performance benchmark of the system. This paper presents exergy analysis and strategies to reduce exergy loss through process modification. The highest exergy loss was found to be located at the inlet furnace. The proposed options for fuel reduction strategies are reduction of heat loss from furnace stack and overall cleaning schedule of CPT. The feasibility and economic analysis for both options are investigated. From the results, overall cleaning schedule of CPT contributes to the highest energy saving of 5.6%. However, reduction of heat loss from furnace stack is the highest cost saving by about 6.4%.

Suggested Citation

  • Nur Izyan, Z. & Shuhaimi, M., 2014. "Exergy analysis for fuel reduction strategies in crude distillation unit," Energy, Elsevier, vol. 66(C), pages 891-897.
    • Handle: RePEc:eee:energy:v:66:y:2014:i:c:p:891-897
    DOI: 10.1016/j.energy.2014.01.026
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    References listed on IDEAS

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    1. Rivero, Ricardo & Rendón, Consuelo & Gallegos, Salvador, 2004. "Exergy and exergoeconomic analysis of a crude oil combined distillation unit," Energy, Elsevier, vol. 29(12), pages 1909-1927.
    2. 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.
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    Cited by:

    1. Baloyi, J. & Bello-Ochende, T. & Meyer, J.P., 2014. "Thermodynamic optimisation and computational analysis of irreversibilities in a small-scale wood-fired circulating fluidised bed adiabatic combustor," Energy, Elsevier, vol. 70(C), pages 653-663.
    2. Barrera, Julian Esteban & Bazzo, Edson & Kami, Eduardo, 2015. "Exergy analysis and energy improvement of a Brazilian floating oil platform using Organic Rankine Cycles," Energy, Elsevier, vol. 88(C), pages 67-79.

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