A Hybrid Approach to Reconstruct a Complete TBP Curve from Blended Gas Condensates
M Shuhaimi(1), M.R Naim(2*)
(1) Chemical Engineering Department, Universiti Teknologi PETRONAS Bandar Seri Iskandar Perak, Malaysia
(2) Group Technology Solutions, R and T Division, PETRONAS
(*) Corresponding Author
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.
Keywords
crude blend; pseudo-component; condensates; refinery; distillation.
Full Text:
PDFReferences
- Albahri, T.A. (2006), Enhanced Method for Predicting the Properties of Light Petroleum Fractions, Fuel, 85, 748–754.
- Daubert, T.E (1994), Petroleum Fraction Distillation Inter Conversion, Hydrocarbon Processing, 73(9) 75 - 78.
- 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.
- Kreyszig, E. (1999), Advance Engineering Mathematics, Singapore, John Wiley.
- Li et al., (2005), Integrating CDU, FCC and product blending models into refinery planning, Comp. Chem. Eng., 29, 2010–2028.
- Prakash, S. (2003), Refining Processing Handbook, Amsterdam, Elsevier.
- Riazi, M.R. (2005), Characterisation and properties of Petroleum Fraction, ASTM annual series.
- Riazi, M.R. (1997), A Distribution Model for C7+ Fractions Characterisation of Petroleum, Ind. Eng. Chem. Res., 36, 4299-4307.
- 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
DOI: https://doi.org/10.22146/ajche.50101
Article Metrics
Abstract views : 1342 | views : 1925Refbacks
- There are currently no refbacks.
ASEAN Journal of Chemical Engineering (print ISSN 1655-4418; online ISSN 2655-5409) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada.