Extraction and modeling of lavender flower essential oil using supercritical carbon dioxide


Akgun M. , Akgun N. , Dincer S.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, cilt.39, ss.473-477, 2000 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 39 Konu: 2
  • Basım Tarihi: 2000
  • Doi Numarası: 10.1021/ie9904798
  • Dergi Adı: INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
  • Sayfa Sayıları: ss.473-477

Özet

Essential oil was extracted from lavender flowers (Lavandula Stoechas subspecies Cariensis Boiss) in a semicontinuous system by supercritical CO2. Experiments were carried out in the ranges of 8-14 MPa pressures, 308-323 K temperatures, and 1.092-2.184 x 10(-3) kg/min carbon dioxide now rates. The extraction process was modeled by a quasi-steady-state model as a function of extraction time, flow rate, pressure, and temperature. The model contains only one adjustable parameter, the intraparticle diffusion coefficient (effective diffusivity) D-e. The model using the best fit of D-e correlates the data satisfactorily.