Fractionation of Edible Oil Model Mixtures by Supercritical Carbon Dioxide in a Packed Column. Part I:  Experimental Results

2001 ◽  
Vol 40 (7) ◽  
pp. 1706-1711 ◽  
Author(s):  
Rui Ruivo ◽  
Maria J. Cebola ◽  
Pedro C. Simões ◽  
M. Nunes da Ponte
2000 ◽  
Vol 39 (12) ◽  
pp. 4820-4827 ◽  
Author(s):  
Owen J. Catchpole ◽  
Pedro Simôes ◽  
John B. Grey ◽  
Eugénia M. M. Nogueiro ◽  
Paulo J. Carmelo ◽  
...  

2014 ◽  
Vol 90 ◽  
pp. 134-143 ◽  
Author(s):  
Eduardo Vyhmeister ◽  
Lorenzo Reyes-Bozo ◽  
Héctor Valdés-González ◽  
José-Luis Salazar ◽  
Anthony Muscat ◽  
...  

2014 ◽  
Vol 1048 ◽  
pp. 515-518 ◽  
Author(s):  
Yan Yan Xu ◽  
Shi Hui Gao ◽  
Lai Jiu Zheng ◽  
Juan Zhang ◽  
Bing Du ◽  
...  

A cleaning process for dyeing apparatus was investigated by employed a self-developed supercritical equipment. The solubility of C.I. Disperse Red 167 was evaluated with acetone, ethanol and carbinol in supercritical carbon dioxide at temperatures of 60, 80,100 and 120 °C and pressures ranging from 12 to 28 MPa. As revealed from the experimental results, the optimal cleaning conditions were as follows: cleaning temperature 100 °C, cleaning pressure 18 MPa, and cleaning time 40 min. Acetone was the most suitable cosolvent and the best cleaning effect was obtained when its concentration was 1%.


2005 ◽  
pp. 111-122 ◽  
Author(s):  
Ivana Pfaf-Sovljanski ◽  
Olgica Grujic ◽  
Mihailo Perunicic ◽  
Ivana Cvetkovic ◽  
Zoran Zekovic

The hop of Magnum cultivar was extracted using supercritical carbon dioxide (SFE-as extractant). Extraction was carried out in the two steps: the first one being carried out at 150 bar and 40?C for 2.5 h (Extract A), and the second was the extraction of the same hop sample at 300 bar and 40?C for 2.5 h (Extract B). Extraction kinetics of the system hop-SFE-CO2 was investigated. Two of four most common compounds of hop aroma (?-humulene and ?-caryophyllene) were detected in Extract A. Isomerised ?-acids and ?-acids were detected too. a-Acid content in Extract B was high (that means it is a bitter variety of hop). Mathematical modeling using empirical model characteristic time model and simple single sphere model has been performed on Magnum cultivar extraction experimental results. Characteristic time model equations, best fitted experimental results. Empirical model equation, fitted results well, while simple single sphere model equation poorly approximated the results.


2016 ◽  
Vol 107 ◽  
pp. 315-320 ◽  
Author(s):  
Helena D.F.Q. Barros ◽  
Janclei P. Coutinho ◽  
Renato Grimaldi ◽  
Helena T. Godoy ◽  
Fernando A. Cabral

Sign in / Sign up

Export Citation Format

Share Document