High pressure solid-solid and solid-liquid transition data for long chain alkanes

被引：13

作者：

Machado, J. J. B. ^{[1
]}

de Loos, Theo W. ^{[1
]}

Ihmels, E. Christian ^{[2
]}

Fischer, Kai ^{[2
]}

Gmehling, Juergen ^{[3
]}

机构：

[1] Delft Univ Technol, Dept Proc & Energy, NL-2828 CA Delft, Netherlands

[2] Lab Thermophys Properties LTP GmbH, D-26129 Oldenburg, Germany

[3] Carl von Ossietzky Univ Oldenburg, Dept Ind Chem, D-26111 Oldenburg, Germany

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2008年 / 40卷 / 12期

关键词：

Alkanes; Solid-solid; Solid-liquid; Triple point; High-pressure;

D O I：

10.1016/j.jct.2008.07.017

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The thermal behavior, upon heating, was studied for four alkanes: eicosane. tetracosane, triacontane, and tetracontane at pressures from (10 to 150)MPa. Using a transitiometer. the calorimetric signal, pressure, and temperature were measured at a very slow heating rate to guarantee thermal equilibrium. It was found that from the compounds studied, eicosane was the only one that did not present a solid-solid transition; the other compounds show a solid-solid transition a few Kelvin below the solid-liquid transition temperature. This solid-solid transition disappears when the pressure is increased in a triple point of type: solid + solid + liquid. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1632 / 1637

页数：6

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