Investigation of Crude Oil Fouling on Performance of Preheat Exchangers of Crude Distillation Unit (CDU)

Abstract

In this article the effect of fouling on tube side and the overall performance of preheat exchangers of crude distillation unit of petroleum refinery have been investigated. For this purpose the experimental data of Australian light crude oil in surface temperature of 200-260oC and the velocity between 0.25 to 0.4 m/s have been used. First, an overall dirty heat transfer coefficient was calculated and then the thickness of scales was determined. By solving heat transfer equations numerically for both cases of dirty and clean conditions, the temperature distribution for the crude oil running inside the heat exchanger's tubes was obtained. Finally, the effects of fouling on the exit temperature of process fluid and the pressure drop have been investigated

References

 
[1]-Z. Saleh, R. Sheikholeslami, A. P. Watkinson, “Heat Exchanger Fouling by a Light Australian Crude Oil”,  Proceeding Heat Exchanger Fouling and Cleaning Fundamentals and Applications,  Santa Fe, July 2003.
[2]-S. Asomaning, C. B. Panchal, C. F. Liao, “Correlating Field and Laboratory Data for Crude Oil Fouling”,  Heat Transfer Engineering, 21,17-23,2000.
[3]-G. T. Polley, B. L. Yeap, D. I. Wilson, S. J. Pugh, “Evaluation of Laboratory Crude Oil Threshold Fouling.  Data for Application  to Refinery Pre-heat Trains”, Applied Thermal Engineering,  22 ,777–788, 2002.
[4]- J. H. Wiegand, “Discussions of Annular Heat Transfer Coefficient for Turbulent Flow”, Trans.,  AIChE 41, p147-152, 1945.
[5]-G. T. Polley, D .I. Wilson, B. L. Yeap, “Models for the Prediction of Fouling in Crude Oil Pre-Heat Trains”,
 WWW.Pinchtechnology.com. September 2002.
[6]-W. L. McCabe, J. C. Smith, P. Harriott, “Unit Operation of Chemical Engineering”, 4th Edition.
[7]-S. J. Pugh, “Identification of R&D Needs Relating to the Mitigation of Fouling in Crude Oil Pre-heat Trains”, ESDU, WWW.Pinchtechnology.com, International plc , June 2002
Journal of Petroleum Research
Volume 14, Issue 50 - Serial Number 50
November and December 2005
Pages 1-10

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