Tracer diffusion coefficients of citral and D-limonene in supercritical carbon dioxide

• Type: Article in International Scientific Journal
• Date: 2003

Authors

Filho, CA (Author) Other; Silva, CM (Author) Other; Quadri, MB (Author) Other; Maria Eugénia Macedo (Author) FEUP

Journal

Title: Fluid Phase Equilibria

Vol. 204

Pages: 65-73

ISSN: 0378-3812

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 32 Citations

ISI Web of Science

Scopus - 36 Citations

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Other information

Authenticus ID: P-000-J0S

DOI: 10.1016/s0378-3812(02)00175-9

Abstract (EN): Binary diffusion coefficients for infinitely diluted solutions of citral and D-limonene in supercritical CO2 were measured at 313.15, 323.15 and 333.15 K and pressures ranging from 12 to 20 MPa using the Taylor-Axis dispersion technique. The dependency on pressure, temperature and carbon dioxide density is examined, as well as the hydrodynamic behaviour. The applicability of the following models is evaluated: Dymond, Wilke-Chang, Tyn-Calus, Catchpole-King, Liu-Silva-Macedo, He-Yu-Su, Funazukuri and co-workers. The one-parameter correlation of Liu-Silva-Macedo achieves the best representation; He-Yu-Su is the best purely predictive model.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9