Concentration dependence of diffusion coefficients for supercritical carbon dioxide + naphthalene system

Hidenori Higashi, Yoshio Iwai, Tsuyoshi Oda, Yuji Nakamura, Yasuhiko Arai

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The concentration dependence of diffusion coefficients for naphthalene in supercritical carbon dioxide at 308.2K was measured by a pseudo steady-state solid dissolution method. The experimental diffusion coefficients were compared with the calculated results by the Darken equation including a thermodynamic factor and tracer diffusion coefficients of supercritical carbon dioxide and naphthalene. The thermodynamic factor in the Darken equation was determined by using several cubic equations of state. The calculated results by the Darken equation represent the concentration dependence of the experimental diffusion coefficients.

Original languageEnglish
Pages (from-to)1161-1167
Number of pages7
JournalFluid Phase Equilibria
Volume194-197
DOIs
Publication statusPublished - Mar 30 2002

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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