Journal of
Petroleum and Gas Engineering

  • Abbreviation: J. Petroleum Gas Eng.
  • Language: English
  • ISSN: 2141-2677
  • DOI: 10.5897/JPGE
  • Start Year: 2010
  • Published Articles: 123

Full Length Research Paper

Prediction of the enthalpy of vaporization according to the temperature far from the critical point by the group contribution method with interactions of pure hydrocarbons, simple mixtures and oil fractions

O. Rebas1*, H. Zait1, N. Skander2 and E. C. Chitour1
1Laboratory of Valorization of Fossil Energies, Department of Chemical Engineering, Polytechnic National School, Algiers, Algeria. 2Sonatrach, Djenane El-Malik, Hydra, Algiers, Algeria.
Email: [email protected]

  •  Accepted: 31 July 2011
  •  Published: 30 November 2011

Abstract

 

In this research, we employed a new method to calculate vaporization enthalpy of pure hydrocarbons. This equation is a function of the temperature, far from critical point and was tested for simple mixtures and oil fractions. Comparing values with the literature, the equation established have improved results in term of average standard deviation. We also applied the equation to the oil fractions; it required a characterisation of these complex mixtures. Excellent results are obtained, which are comparable or better than those obtained with other models.

 

Key words: Hydrocarbons, simple mixtures, oil fractions, enthalpy of vaporization, group contribution, intramolecular interactions.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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