Estimation of Critical and Thermophysical Properties of Saturated Cyclic Alkanes by Group Contributions

Authors

  • C. Otobrise
    Department of Chemistry, Delta State University, P.M.B.1, Abraka, Nigeria.
  • G. A. Orotomah
    Department of Chemistry, Delta State University, P.M.B.1, Abraka, Nigeria.

Keywords:

Group Contributions, Critical Properties, Thermophysical Properties, Cycloalkanes

Abstract

Group Contribution Methods (GCMs) of Marrero & Gani (M & G), Constantinou & Gani (C & G) and Lydersen (LYD) were employed in the prediction of some critical and thermophysical properties(TPPs), namely; critical temperature (Tc), critical pressure (Pc), critical volume (Vc), boiling temperature (Tb) and melting temperature (Tm), for various cycloalkanes. The predicted properties were compared with available experimental data. Experimental data for T m were unfortunately very scanty in the open literature; no comparison was done to appraise any of the methods. For Tc , LYD, C & G and M & G gave average relative deviation (ARD) values of 0.02%, 1.57% and 14.64%, respectively. In the case of Vc , ARD values for LYD, C & G and M & G are 2.6 %, 23.97 %, -4.53 %, respectively. Predicted P c values using the methods gave ARD of -31.55 %, -1.49 %, -277.98 %, respectively. C & G and M & G recorded ARD values of 0.63 % and 10.30 % for Tb , respectively.

Dimensions

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Published

2022-08-20

How to Cite

Estimation of Critical and Thermophysical Properties of Saturated Cyclic Alkanes by Group Contributions. (2022). Journal of the Nigerian Society of Physical Sciences, 4(3), 711. https://doi.org/10.46481/jnsps.2022.711

Issue

Volume 4, Issue 3, August 2022

Section

Original Research
Copyright & Licensing

Copyright (c) 2022 C. Otobrise, G. A. Orotomah

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

Estimation of Critical and Thermophysical Properties of Saturated Cyclic Alkanes by Group Contributions. (2022). Journal of the Nigerian Society of Physical Sciences, 4(3), 711. https://doi.org/10.46481/jnsps.2022.711

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