pρTx-property measurements near saturation in the gaseous phase for propane + isobutane

Atsushi Yamaguchi, Mitsuru Mukoubayashi, Tae Matsunami, Haruki Sato

研究成果: Article

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pρTx-property measurements near saturation in the gaseous phase for propane (1) + isobutane (2) at x1 = 0.25 (W1 = 20.19 %), X1 = 0.5 (w1 = 43.14 %), and X1 = 0.80 (w 1 = 75.22 %) are reported. The data near saturation in the gaseous phase are important information for deriving reliable property values such as specific heats near saturation or for determining the second and third virial coefficients. The measurements were performed using a magnetic suspension densimeter. 154 pρTx values for propane + isobutane mixtures were obtained at the temperatures of (303.15 and 323.15) K and for pressures up to 980 kPa. The experimental uncertainties are estimated to be 10 mK for temperature, 0.45 kPa for pressure, (0.03 % + 0.005 kg · m-3) for density, and 0.31 % in mass fraction (0.32 % in mole fraction). The purities of propane and isobutane were both 99.99 % in mass fraction according to the report from the manufacturer. The measurements are used for assessing the reliability of existing equations of state.

元の言語English
ページ(範囲)3273-3275
ページ数3
ジャーナルJournal of Chemical and Engineering Data
54
発行部数12
DOI
出版物ステータスPublished - 2009 12 10

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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