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Experimental Data Assessment Test for Diamondoids Solubility in Gaseous System

Abstract : Deposition of solid diamond-like hydrocarbons may cause drastic problems in natural gas systems, and therefore it is of interest to know deposit conditions as accurately as possible. Unfortunately, only a few sets of experimental data for solubility of diamondoids in gaseous systems have been reported in the literature partly because of the difficulties in measurements of very low concentrations of the latter compounds in the gas phase. Thus, the reliability of the corresponding data must be checked prior to their applications. In this communication, we present the results of a thermodynamic assessment test (consistency test) based on an area test approach for experimental solubility data of adamantane and diamantane in supercritical carbon dioxide and ethane. The modified Esmaeilzadeh␣Roshanfekr (m-ER) cubic equation of state (CEoS) along with the vdW2 mixing rules are used to model the solubility of the aforementioned diamondoids in the latter supercritical gases. The results show that all of the investigated experimental data sets seem to be thermodynamically consistent.
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Submitted on : Wednesday, August 10, 2011 - 11:05:28 AM
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Ali Eslamimanesh, Mohammad Yazdizadeh, Amir H. Mohammadi, Dominique Richon. Experimental Data Assessment Test for Diamondoids Solubility in Gaseous System. Journal of Chemical and Engineering Data, American Chemical Society, 2011, 56 (5), pp.2655-2659. ⟨10.1021/je200193n⟩. ⟨hal-00614232⟩



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