Experimental solubilities of two lipid derivatives in supercritical carbon dioxide and new correlations based on activity coefficient models

RSC Advances ◽  
2016 ◽  
Vol 6 (22) ◽  
pp. 17772-17781 ◽  
Author(s):  
Neha Lamba ◽  
Ram C. Narayan ◽  
Joy Raval ◽  
Jayant Modak ◽  
Giridhar Madras
Keyword(s):  
Carbon Dioxide ◽  
Supercritical Carbon Dioxide ◽  
Activity Coefficient ◽  
New Models ◽  
Geranyl Butyrate ◽  
Activity Coefficient Models ◽  
Supercritical Carbon

Solubilities of 10-undecen-1-ol and geranyl butyrate were determined and correlated based on new models by combinations of solution/association theories.

scholarly journals Solubility of Anthraquinone Derivatives in Supercritical Carbon Dioxide: New Correlations

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 460
Author(s):  
Ratna Surya Alwi ◽  
Chandrasekhar Garlapati ◽  
Kazuhiro Tamura
Keyword(s):  
Carbon Dioxide ◽  
Liquid Phase ◽  
Supercritical Carbon Dioxide ◽  
Binary Systems ◽  
Relative Deviation ◽  
Anthraquinone Derivatives ◽  
New Models ◽  
Solubility Isotherms ◽  
Solid Liquid ◽  
Supercritical Carbon

Solubility of several anthraquinone derivatives in supercritical carbon dioxide was readily available in the literature, but correcting ability of the existing models was poor. Therefore, in this work, two new models have been developed for better correlation based on solid–liquid phase equilibria. The new model has five adjustable parameters correlating the solubility isotherms as a function of temperature. The accuracy of the proposed models was evaluated by correlating 25 binary systems. The proposed models observed provide the best overall correlations. The overall deviation between the experimental and the correlated results was less than 11.46% in averaged absolute relative deviation (AARD). Moreover, exiting solubility models were also evaluated for all the compounds for the comparison purpose.

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