کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9635818 | 1427490 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Measurement and modeling of solubilities of capsaicin in high-pressure CO2
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Measurement and modeling of solubilities of capsaicin in high-pressure CO2 Measurement and modeling of solubilities of capsaicin in high-pressure CO2](/preview/png/9635818.png)
چکیده انگلیسی
Measurements on solid-fluid equilibrium were performed for capsaicin in sub- and supercritical carbon dioxide (CO2) at several temperatures (298, 308, 313 and 318Â K) and over a pressure range from 6 to 40Â MPa, to verify the operation of a new static-analytic set-up. This set-up consisted of a high-pressure static equilibrium cell coupled to a high-performance liquid chromatograph (HPLC). The new equilibrium data have been critically compared with available literature data; some differences were observed, especially at the two highest assayed temperatures. Experimental solubility values were correlated by using three different models, a density-based model, a cubic equation of state with quadratic mixing rules, and a group contribution equation of state. The density correlation results showed good agreement with the experimental data, in contrast to the results of both equations of state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Supercritical Fluids - Volume 34, Issue 2, June 2005, Pages 195-201
Journal: The Journal of Supercritical Fluids - Volume 34, Issue 2, June 2005, Pages 195-201
نویسندگان
Juan C. de la Fuente, José O. Valderrama, Susana B. Bottini, José M. del Valle,