An extensive study of n-nonane nucleation in methane/carbon dioxide has been performed. Nucleation rate data was obtained for methane/carbon dioxide carrier gas mixtures with a 0.01 molar fraction of carbon dioxide at three different conditions: 236 K and 10 bar, 240 K and 25 bar, 240 K and 40 bar. The obtained data is compared with the available data for the methane/n-nonane mixture. Furthermore, the nucleation rates of n-nonane in methane/carbon dioxide mixtures were determined at 235 K and 10 bar for initial molar fractions of carbon dioxide up to 0.3. Two series of such experiments have been performed: (1) the molar fraction of carbon dioxide is fixed, yco2 = 0.25, and the n-nonane fraction is varied; (2) the molar fraction of n-nonane is constant, yc9 = 230 ppm, and the carbon dioxide fraction is varied. A comparison with the methane/n-nonane data shows that carbon dioxide does influence nucleation when its molar concentration in the mixture exceeds 0.25.
Keywords Homogeneous ternary nucleation, natural gas, methane, carbon dioxide, n-nonane
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Labetski, D.G., Hrubý, J., van Dongen, M.E.H. (2007). n-Nonane Nucleation in the Presence of Carbon Dioxide. In: O'Dowd, C.D., Wagner, P.E. (eds) Nucleation and Atmospheric Aerosols. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-6475-3_15
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