par Ancherbak, Sergiy 
;Santos, Cecília I A V C.I.A.V.;Legros, Jean Claude ;Mialdun, Aliaksndr ;Shevtsova, Valentina
Référence The European physical journal. E. Soft matter, 39, 11, 111
Publication Publié, 2016-11
;Santos, Cecília I A V C.I.A.V.;Legros, Jean Claude ;Mialdun, Aliaksndr ;Shevtsova, Valentina Référence The European physical journal. E. Soft matter, 39, 11, 111
Publication Publié, 2016-11
Article révisé par les pairs
| Résumé : | Abstract.: We present the development of a high-pressure apparatus for measurements of diffusion coefficients in supercritical fluids. The Taylor dispersion method has been adapted to conduct experiments at the pressures up to 25.0 MPa. In order to test the developed set-up, binary diffusion coefficients D at infinite dilution in supercritical carbon dioxide have been measured for a reference system, benzene, at temperatures in the range of 309.50-319.95 K. The effects of flow velocity, number of consecutive injections and absorbance at different wave numbers on the diffusion coefficient have been analysed. The obtained diffusion coefficients are of the order of 10-8m2/s and in excellent agreement with the available literature data. Graphical abstract: [Figure not available: see fulltext.] |
