Application of the SAFT-γ Mie group contribution equation of state to fluids of relevance to the oil and gas industry

The NRTL-PRA group contribution EoS for the simultaneous prediction of LLE, VLE and h of hydrocarbon mixtures with associating compounds

“…The major difficulty arises from the simultaneous representation of liquid-liquid (LLE) data together with vaporliquid equilibria (VLE) and excess enthalpies (h E ). Up to now, two approaches were considered by chemical engineers to solve this problem: first, the predictive cubic VTPR EoS [1], even if it is known to provide "not very satisfactory" liquid-liquid predictions; second, the CPA [2] and SAFT type equations (PC-SAFT [2][3][4][5], GC-PC-SAFT [6], SAFT-γ Mie [7], GCA [8]), even if none of these models gives information about the representation of excess enthalpies h E and if few of them (GC-PC-SAFT, SAFT-γ Mie and GCA EoS) are totally predictive.…”

Correlation and prediction of liquid–liquid equilibria for alcohol/hydrocarbon mixtures using PC-SAFT equation of state at high pressure up to 150 MPa

“…Furthermore, a comparison with results reported in the literature (Non-random hydrogen bonding (NRHB) and sPC-SAFT [8], SAFT-g [9] and Simplified-polar Perturbed Chain Statistical Associating Fluid Theory (sPPC-SAFT) [5]) indicates that the new parameters set of methanol and ethanol for PC-SAFT equations of state perform LLE superior than NRHB and sPC-SAFT or SAFT-g or sPPC-SAFT, as shows in Fig. 6.…”

“…For mixtures studied in this work, the new PC-SAFT parameters set was shown superior to other similar model, e.g. NRHB and sPC-SAFT [8], SAFT-g [9] or sPPC-SAFT [5] including the original PC-SAFT parameters set [1,11]. …”

“…Moreover, the new set parameters of methanol performs LLE superior to the parameters set published by 6. Correlated results of liquideliquid equilibria for the ethanol þ n-hexadecane (a) and methanol þ n-hexane (b) compared to the calculation result with NRHB and sPC-SAFT [8], SAFT-g [9] and sPPC-SAFT [5].…”

A hierarchical method to integrated solvent and process design of physical CO2 absorption using the SAFT‐γ Mie approach

“…and ; they are adopted here without further modification. We also adopt the parameters of like and unlike interactions of CO 2 and CH 4 which were developed in other work and will be published elsewhere . The parameters of the like interactions of cO and eO and the remaining parameters of the unlike interactions shown in Table are developed here.…”