Modifications to the binary phase diagram of the alkane mixtures n-C23–n-C24

New phase behavior of n-undecane–tridecane mixtures confined in porous materials with pore sizes in a wide mesoscopic range

“…Thermal analysis of the samples was performed on a DSC (Q10, TA Instruments) under a high purity nitrogen atmosphere with a scanning rate of 5 K min 21 . The temperature scale was calibrated using high purity adamantine, water, and indium.…”

“…The sample is placed in an aluminum vessel with the size of 2 6 1.6 6 1 mm. The cooling and heating rates of the samples were 5 K min 21 . Before each scan, the sample was equilibrated for 5 min.…”

“…[16][17][18] Normal alkanes are important materials widely used in many fields such as the petroleum industry, lubricants and energy storage materials. [19][20][21][22] In theoretical research, they are good model compounds in study of complex crystallization behavior of polymers, surfactants and lipids. [21][22][23] This family is known for polymorphism due to the special rotator phases, R I to R V , caused by rotations of molecular chains around the long axes.…”

“…[19][20][21][22] In theoretical research, they are good model compounds in study of complex crystallization behavior of polymers, surfactants and lipids. [21][22][23] This family is known for polymorphism due to the special rotator phases, R I to R V , caused by rotations of molecular chains around the long axes. 24,25 The odd numbered alkanes of carbon atoms larger than 11 have at least one rotator phase before melting while even numbered alkanes show stable rotator phases only when carbon numbers larger than 22.…”

The Ternary System (n-Heptane + Docosane + Tetracosane): The Solubility of Mixtures of Docosane and Tetracosane in Heptane and Data on Solid−Liquid and Solid−Solid Equilibria in the Binary Subsystem (Docosane + Tetracosane)

“…Abundant experimental data are available on systems with either only one solute (Kniaz ´, 1991) or two solutes certainly precipitating as independent pure component crystals (Jakob et al, 1995). Further experimental data sets are available on binary systems possibly forming mixed crystals, which means the absence of a solvent (Mazee, 1960;Sabour et al, 1995;Achour et al, 1992;Dorset, 1990;Maroncelli et al, 1985). Other data sets on real reservoir fluids or fuels (Holder and Winkler, 1965;Van Winkle et al, 1987) do not allow us to make a clear distinction between different mechanisms involved in the solid precipitation, due to characterization procedures and experimental accuracies (Erickson et al, 1993).…”