Infinite dilution diffusion coefficients of linalool and benzene in supercritical carbon dioxide

• Tipo: Artigo em Revista Científica Internacional
• Data: 2002

Autores

Filho, CA (Autor) Outra; Silva, CM (Autor) Outra; Quadri, MB (Autor) Outra; Maria Eugénia Macedo (Autor) FEUP

Revista

Título: Journal of Chemical & Engineering Data

Vol. 47

Páginas: 1351-1354

ISSN: 0021-9568

Editora: American Chemical Society

Indexação

ISI Web of Knowledge - 25 Citações

ISI Web of Science

Scopus - 28 Citações

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Outras Informações

ID Authenticus: P-000-MHV

DOI: 10.1021/je020004e

Abstract (EN): In this work tracer diffusion coefficients of linalool in supercritical carbon dioxide were measured at 313.15, 323.15, and 333.15 K and pressures from (12-20) MPa using the chromatographic peak broadening technique. Linalool was chosen because it is one of the most important components of the flavor and fragrance of the citrus essential oil. The influence of pressure, temperature, and carbon dioxide density on the diffusion coefficients is examined, as well as the hydrodynamic behavior. The applicability of the following models is evaluated: Wilke-Chang, Hayduk-Minhas, He-Yu-Su, Catchpole-Ydng, Dymond, and Liu-Silva-Macedo. Tracer diffusion coefficients of benzene were also measured and compared with literature values in order to survey the apparatus and procedure performance.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 4