A Hybrid Approach to Reconstruct a Complete TBP Curve from Blended Gas Condensates

  • M Suhaimi Chemical Engineering Department, Universiti Teknologi PETRONAS Bandar Seri Iskandar Perak, Malaysia
  • M. R Naim Group Technology Solutions, R and T Division, PETRONAS
Keywords: crude blend, pseudo-component, condensates, refinery, distillation

Abstract

Successful operations of a natural gas condensate fractionation unit requires the feed’s True Boiling Point (TBP) curve to be reconstructed and its’ bulk properties to be predicted. In this work, a hybrid approach combining the Generalised Distribution Model (GDM) and Pseudo-component Linear Equation (PcLE) methods are proposed. The proposed method is simple and requires limited information from readily available laboratory analysis data. The method was demonstrated using a refinery case study and found that the hybrid approach were able to reconstruct a pure component TBP curve from the blended feed data with error of less than 5%. Consequently the approach is very useful during preliminary stage for refinery engineers to explore and exploit the operational flexibility in a current distillation column to maximise the desired product yields.

References

1. Albahri, T.A. (2006), Enhanced Method for Predicting the Properties of Light Petroleum Fractions, Fuel, 85, 748–754.
2. Daubert, T.E (1994), Petroleum Fraction Distillation Inter Conversion, Hydrocarbon Processing, 73(9) 75 - 78.
3. Eckert, E. and T. Vanˇek (2005), New Approach to the Characterisation of Petroleum Mixtures used in the Modelling of Separation Processes, Comp. Chem. Eng., 30, 343–356.
4. Kreyszig, E. (1999), Advance Engineering Mathematics, Singapore, John Wiley.
5. Li et al., (2005), Integrating CDU, FCC and product blending models into refinery planning, Comp. Chem. Eng., 29, 2010–2028.
6. Prakash, S. (2003), Refining Processing Handbook, Amsterdam, Elsevier.
7. Riazi, M.R. (2005), Characterisation and properties of Petroleum Fraction, ASTM annual series.
8. Riazi, M.R. (1997), A Distribution Model for C7+ Fractions Characterisation of Petroleum, Ind. Eng. Chem. Res., 36, 4299-4307.
9. Riazi, M.R. and T.E. Daubert (1980), Improved Characterization of Wide Boiling Range Undefined Petroleum Fractions, Industrial and Engineering Chemistry Research, 26(3), 629-632
Published
2009-12-31
How to Cite
Suhaimi, M., & Naim, M. R. (2009). A Hybrid Approach to Reconstruct a Complete TBP Curve from Blended Gas Condensates. ASEAN Journal of Chemical Engineering, 9(2), 8-14. Retrieved from https://dev.journal.ugm.ac.id/v3/AJChE/article/view/8054
Section
Articles