2026-03-14T13:34:24Z https://kanazawa-u.repo.nii.ac.jp/oai

oai:kanazawa-u.repo.nii.ac.jp:00007565 2024-06-20T06:18:46Z 934:935:936

Diffusion coefficients of naphthalene and dimethylnaphthalene in supercritical carbon dioxide 40294889 Higashi, Hidenori Iwai, Yoshio Takahashi, Yuichi Uchida, Hirohisa Arai, Yasuhiko A new experimental apparatus based on a pseudo-steady state solid dissolution method has been designed to measure the diffusion coefficients of supercritical carbon dioxide(1)-naphthalene(2) and supercritical carbon dioxide(1)-dimethylnaphthalene isomers(2) systems. The diffusion coefficients were measured at 308.2 K. In order to establish the validity of this method and the performance of the apparatus, the experimental results of the diffusion coefficients of naphthalene in supercritical carbon dioxide were compared with the literature data measured by other methods. The decrease of diffusion coefficient of naphthalene was observed near the critical point of carbon dioxide. The diffusion coefficients of 2,6-dimethylnaphthalene (2,6-DMN) and 2,7-dimethylnaphthalene (2,7-DMN) show almost the same values. The diffusion coefficients of these isomers are about 10% lower than those of naphthalene. 金沢大学大学院自然科学研究科生産プロセス Elsevier 1998-02-01 2017-10-03 eng journal article AM http://hdl.handle.net/2297/6639 https://kanazawa-u.repo.nii.ac.jp/records/7565 https://doi.org/10.1016/s0378-3812(97)00265-3 http://www.elsevier.com/locate/issn/03783812 0378-3812 Fluid Phase Equilibria 144 1-2 269 278 https://kanazawa-u.repo.nii.ac.jp/record/7565/files/TE-PR-HIGASHI-H-269.pdf application/pdf 75.4 kB 2017-10-03