Density and Compressibility of Multicomponent n-Alkane Mixtures up to 463 K and 140 MPa

Research output: Contribution to journalJournal articleResearchpeer-review

420 Downloads (Pure)

Abstract

Density measurements of two ternary alkane mixtures (methane/n-butane/n-decane and methane/n-butane/n-dodecane) and two multicomponent mixtures composed of methane/n-butane/n-octane/n-dodecane/n-hexadecane/n-eicosane were performed in the temperature range from (278.15 to 463.15) K and pressures up to 140 MPa. The isothermal compressibility values of these mixtures were obtained by differentiation from a Tait-type fitting of experimental densities as a function of temperature and pressure. Excess volume of the studied mixtures was also determined. Four different equations of state, that is, Soave–Redlich–Kwong (SRK), Peng–Robinson (PR), Perturbed Chain Statistical Associating Fluid Theory (PC-SAFT), and Soave-Benedict-Webb-Rubin (Soave-BWR) were used for predicting the experimental density values as well as the excess volumes.
Original languageEnglish
JournalJournal of Chemical and Engineering Data
Volume63
Issue number4
Pages (from-to)1072-1080
ISSN0021-9568
DOIs
Publication statusPublished - 2017

Cite this