Measurement and correlation of diffusion coefficients for alcohols in supercritical CO2
Huagong Xuebao/Journal of Chemical Industry and Engineering (China)(1995)
摘要
An experimental device based on the Taylor dispersion principles was sued to determine the diffusion coefficients in a supercritical fluid. The diffusion coefficients for benzene and seven n-alcohols in supercritical carbon dioxide were reported, with a temperature range 313.0 to 343.2 K and pressure, 8.0 to 16.1 MPa. Moreover, three correlation equations were tested extensively in terms of the data for 63 systems (817 points) from literature and this work. It is found that the Liu-Wang-Lu Model and Modified Fujita Model proposed in this work give satisfactory results.
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