Solubility parameter of narrow oil cuts by several models: quantifying the discrepancy among predictions for heavy cuts

Santos, David C.; Lima, E. R. A.; Paredes, Márcio L.L.

doi:10.1007/s43153-021-00159-6

Cited by 2 publications

(1 citation statement)

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“…al. [8][9][10], to adjust their models when relating cohesive energy, enthalpy of vaporization, and internal pressure in the calculation of SP values of asphaltene and crude oils. Interfacial tension wettability, ratio of isobaric to isothermal compressibility factors, and the boiling points of nonpolar liquids are thermodynamic parameters can be calculated by determining the SP [11].…”

Section: Introductionmentioning

confidence: 99%

Adopting a Residual‐Energy‐Based Approach to Calculate the Solubility Parameters of n‐Alkanes

et al. 2022

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Two different paths were followed to calculate the solubility parameters (SP) of 133 alkanes. The first approach calculates SP from the points of view of internal pressure and residual energy, whereby Soave‐Redlich‐Kwong and Peng‐Robinson equations of state (EOSs) are employed with and without the volume‐shift correction. In the second approach, the cohesive energy concept is used and the saturation pressure and saturated liquid molar volume are separately computed by different models and coupled to one another. The results indicated that Approach 1 predicts SP with an error of 2.24 %, which is in the same order as that of Approach 2 but slightly better. The performance of Approach 1 was assessed by estimating the SP values of 33 substances from various families and comparing the results to an EOS‐based study.

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Section: Introductionmentioning

confidence: 99%