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PVT Property Determination at Elevated Temperatures and Pressures by Floating-Piston Tech
Yue Wu, Leyuan Xu, and Hao Zhang
Virginia Commonwealth University
Department of Chemical and Life Science/Mechanical and Nuclear Engineering, VCU, Richmond, Virginia 23284, USA.
Pressure-volume-temperature (PVT) property data at elevated temperatures and pressures play an important role in a variety of chemical processes and provide a fundamental database for the development and examination of thermodynamic models. This article describes a detailed experimental procedure of the floating-piston technique for determining PVT properties of pure liquids and polymer solutions in a wide range of temperatures and pressures. Some representative results using this technique are also given in this article, which agree with available literature data with a percent deviation within +/- 0.4%.

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