Gas-liquid equilibrium in binary mixtures of methane with N-decane, benzene, and toluene

Abstract

Compositions of saturated equilibrium liquid and vapor phases are determined In a flow apparatus for mixtures of methane and n-decane at 150, 240, 270, 290, and 310 OC, for methane and benzene at 150, 190, and 230 OC, and for methane and toluene at 150, 190, 230, and 270 OC. Pressures extend to near the crltlcals of the mixtures starting from 20 atrn or from somewhat above the vapor pressure of the solvent Whichever is higher.

Viscosity and density of mixtures of methane and n-decane from 298 to 393 K and up to 75 MPa

“…For example at 300 K, measurements at compositions richer in decane than about x 2 = 0.15 are limited by the bubble-point line which extends up to a pressure of 35 MPa. For x 2 < 0.15 it is the steeper dew-point line that constitutes the lower pressure limit to the one-phase region [10][11][12]. The maximum pressure attained in this work was of 75 MPa.…”

Integrated solvent and process design using a SAFT-VR thermodynamic description: High-pressure separation of carbon dioxide and methane

“…Properties of the relevant single component and binary mixture uids have been intensively studied, both from experimental (Fredenslund & Mollerup, 1974;Hamam & Lu, 1974;Davalos, Anderson, Phelps & Kidnay, 1976;Brown, Kidnay & Sloan, 1988;Nagahama, Konishi, Hoshino & Hirata, 1974;Ohgaki & Katayama, 1977;Wei, Brown, Kidnay & Sloan, 1995;Somait & Kidnay, 1978;Kaminishi & Toriumi, 1968;Xu, Dong, Wang & Shi, 1992b;Bian, 1992;Xu, Dong, Wang & Shi, 1992a;Bian, Wang & Shi, 1993;Koonce & Kobayashi, 1964;Reamer, Olds, Sage & Lacey, 1942;Lavender, Sage & Lacey, 1940;Bett, Juren & Reynolds, 1968;Lin, Sebastian, Simnick & Chao, 1979;Reamer & Sage, 1963;Iwai, Hosotani, Morotomi, Koga & Arai, 1994;Inomata, Tuchiya, Arai & Saito, 1986;Jennings & Schucker, 1996;Chou, Forbert & Prausnitz, 1990;Nagarajan & Robinson, 1986;Sebastian, Simnick, Lin & Chao, 1980) and theoretical perspectives (McCabe, Galindo, GilVillegas & Jackson, 1998a;McCabe, Gil-Villegas & Jackson, 1998;Nguyen-Huynh, Tran, Tamouza, Passarello, Tobaly et al, 2008), but experimental data for ternary mixtures (Dunyushkin, Skripka & Nenartovich, 1977) are scarce for the systems of interest here. Thus, we rst present the SAFT-VR molecular models developed for this work; we obtain transferable binary interaction parameters where necessary and compare the result of the SAFT-VR calculations for the phase equilibria of pure components and binary mixtures to experimental data.…”

“…For CO 2 + C 10 and CH 4 + C 10 , we selected experimental data for pressures below 10 MPa and temperatures below 477 K. This corresponds to the operating range of the separation process that is being considered in our work. All of the experimental data available in the Detherm database (Fletcher, F., McMeeking & Parkin, 1996) are used for CH 4 + C 10 (111 points) (Koonce & Kobayashi, 1964;Reamer, Olds, Sage & Lacey, 1942;Lavender, Sage & Lacey, 1940;Bett, Juren & Reynolds, 1968;Lin, Sebastian, Simnick & Chao, 1979) and for CO 2 + C 10 (85 points) (Reamer & Sage, 1963;Iwai, Hosotani, Morotomi, Koga & Arai, 1994;Inomata, Tuchiya, Arai & Saito, 1986;Jennings & Schucker, 1996;Chou, Forbert & Prausnitz, 1990;Nagarajan & Robinson, 1986;Sebastian, Simnick, Lin & Chao, 1980), both over 15 temperature values (see table 2).…”

An Assessment of Research Needs Related to Improving Primary Cement Isolation of Formations in Deep Offshore Wells

“…The critical pressure of the methane/n-decane system at 311 K is ~ 35 MPa and the methane/toluene system at 462 K (189°C) is ~ 25 MPa. Results are shown in Figure 40 [81] and Figure 41 [82]. Hybrid PC-SAFT slightly over predicts the density compared to G-S PC-SAFT at these pressures.…”