Liquid–solid equilibria under high pressure of tetradecane+pentadecane and tetradecane+hexadecane binary systems

Investigation of different activity coefficient models in thermodynamic modeling of wax precipitation

“…In this work, eight different mixtures including C 14 -C 16 (12 mixtures) as the binary system, C 14 -C 15 -C 16 (11 mixtures), C 16 -C 17 -C 18 (11 mixtures), C 18 -C 19 -C 20 (18 mixtures) and C 19 -C 20 -C 21 (16 mixtures) as ternary systems, C 10 -C 24 -C 25 -C 26 (5 mixtures) as the quaternary system, decane + multi-paraffin (C 10 +C 18 to C 30 ) (2 mixtures referred to as A and C in the literature [20]) and hexane + multi-paraffin (C 6 to C 36 ) (1 mixture) as multi-component systems have been used [17][18][19][20][21]. In the binary and ternary systems, experimental WDT (68 equilibrium data points) at a wide range of compositional distributions have been employed and are reported in the literature [17,18].…”

“…In the binary and ternary systems, experimental WDT (68 equilibrium data points) at a wide range of compositional distributions have been employed and are reported in the literature [17,18]. In the quaternary system, experimental WAT and wax content data (34 equilibrium points) have been used [19].…”

“…The details of WDT calculations for the solid solution and multi-solid models have been reported in the literature [31]. Table 1 The AAD% (sorted results) for WDT calculation using 25 combinations of activity coefficient models based on solid solution model for C 14 -C 16 binary system (experimental data from [17] …”

“…The predictive Wilson model is located at the end of this table for calculating the activity coef- Table 2 The AAD% for WAT or WDT calculation using multi-solid models (experimental data from [17][18][19][20] Table 3 The AAD% (sorted results) for WDT calculation using 25 combinations of activity coefficient models based on solid solution model for C 14 -C 15 -C 16 ternary system (experimental data from [18], no. of data points: 11) …”

Experimental measurements and thermodynamic modeling ofwax disappearance temperature for the binary systems n -C 14 H 30 + n -C 16 H 34 , n -C 16 H 34 + n -C 18 H 38 and n -C 11 H 24 + n -C 18 H 38

“…Researchers not only have investigated the effect of different parameters on the WDT and WAT, but also proposed thermodynamic models to accurately predict the thermodynamic behavior of multi-component systems [6,9,12,[16][17][18][19][20][21]. For example, Wang et al [6] measured WAT and WDT of n-C 24 H 50 and n-C 36 H 74 in n-decane solutions both with and without wax inhibitors using light transmittance method.…”