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

Abstract

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Density, compressibility and phase equilibrium of high pressure-high temperature reservoir fluids up to 473 K and 140 MPa

“…PC-SAFT seems to be slightly better in compressibility prediction but the difference is not large. Overall, the findings from the model comparison in this study are in certain agreement with the findings from our previous studies [7][8][9]. One can generally expect that SRK, PR and PC-SAFT perform similarly in equilibrium calculation whereas PC-SAFT may be slightly better in volumetric properties.…”

“…However, we note that the above observations cannot be generalized even for the densities from SRK and PR. In our previous studies for well-defined mixtures containing methane [7][8][9], the trends with the methane content are not always in agreement with the observations in this study. For instance, although the density prediction by SRK improves with the methane content for two sevencomponent synthetic mixtures [8], the prediction by PR also improves with the methane content.…”

“…In our previous studies [7][8][9] a series of synthetic binary, ternary and multicomponent mixtures were designed as simple model fluids for real HPHT reservoir fluids. These mixtures include methane/n-decane, methane/n-butane/n-decane, methane/n-butane/n-dodecane and methane/nbutane/n-hexane/n-decane/n-hexadecane/n-eicosane, and their compositions were designed to represent either volatile oils or gas condensates.…”

P–ρ–T Data and Modeling for Propan-1-ol + n-Octane or n-Nonane or n-Decane from 313.15 K to 363.15 K and 1 MPa to 20 MPa

“…With increasing pressure, the density usually increases. Some recent studies involving the measurement of densities at elevated pressures include the work of Yang et al, Ahmad et al, Regueira et al, and Safarov et al…”

Gold nanoparticle supracrystals mechanics under pressure: the role of the soft matrix

“…The mechanical behaviour of liquid dodecane below the crystallization pressure (0.2 GPa) has been investigated by. 16 By fitting their results with the help of the Rault model, it is possible to compute the bulk modulus of liquid dodecane just before crystallization: The behavior of the ligand matrix and pure dodecane bulk modulus upon hydrostatic pressure are compared in Figure 5. Two different graphs are shown either the ratio V /V O as a function of P (Fig.…”