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- Title
Estimation of Critical and Thermophysical Properties of Saturated Cyclic Alkanes by Group Contributions.
- Authors
Otobrise, C.; Orotomah, G. A.
- 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 Tm 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.
- Subjects
THERMOPHYSICAL properties; CRITICAL temperature; ATHEROSCLEROSIS; CYCLOALKANES; EBULLITION
- Publication
Journal of Nigerian Society of Physical Sciences, 2022, Vol 4, Issue 3, p1
- ISSN
2714-2817
- Publication type
Article
- DOI
10.46481/jnsps.2022.711