RETROFIT OF CRUDE PREHEAT TRAIN WITH MULTIPLE TYPES OF CRUDE

Kitipat Siemanond, Supachai Kosol

Abstract

This study explores the retrofitting of the crude preheat train of a crude distillation unit (CDU) processing two types of crude--light and heavy--for a period of 200 and 150 days per year, respectively, with the aim of finding the optimal design that would yield the highest net present value (NPV). A mathematical programming model using GAMS software of heat exchanger network (HEN) called stage model (Zamora and Grossmann, 1996) is applied to carry out the retrofit. The base case CDU is simulated by PRO II software. Using pinch analysis, the composite curves show the retrofit potential of base cases with light and heavy crude. The 10-stage model generates six retrofit designs--Designs 1, 2, 3, 4, 5, and 6--of which Designs 1, 2, and 3 are suitable for light crude and Designs 4, 5, and 6 are suitable for heavy crude. Using a graphical technique of searching for optimization with maximized NPVs of all designs, it is shown that Design 2 is the optimal retrofit design processing both types of crude, yielding the highest NPV of $11,529,511 for a 5-year lifetime and resulting in furnace duty saving of 32%.

References

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Paper Citation


in Harvard Style

Siemanond K. and Kosol S. (2011). RETROFIT OF CRUDE PREHEAT TRAIN WITH MULTIPLE TYPES OF CRUDE . In Proceedings of 1st International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH, ISBN 978-989-8425-78-2, pages 303-308. DOI: 10.5220/0003577203030308


in Bibtex Style

@conference{simultech11,
author={Kitipat Siemanond and Supachai Kosol},
title={RETROFIT OF CRUDE PREHEAT TRAIN WITH MULTIPLE TYPES OF CRUDE},
booktitle={Proceedings of 1st International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,},
year={2011},
pages={303-308},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003577203030308},
isbn={978-989-8425-78-2},
}


in EndNote Style

TY - CONF
JO - Proceedings of 1st International Conference on Simulation and Modeling Methodologies, Technologies and Applications - Volume 1: SIMULTECH,
TI - RETROFIT OF CRUDE PREHEAT TRAIN WITH MULTIPLE TYPES OF CRUDE
SN - 978-989-8425-78-2
AU - Siemanond K.
AU - Kosol S.
PY - 2011
SP - 303
EP - 308
DO - 10.5220/0003577203030308