Fluid Phase Equilibria of Ethanol and Carbon Dioxide Mixtures with Concentration Measurements by Raman Spectroscopy

2002 ◽  
Vol 56 (6) ◽  
pp. 783-788 ◽  
Author(s):  
A. Stratmann ◽  
G. Schweiger
Keyword(s):  
Carbon Dioxide ◽  
Raman Spectroscopy ◽  
High Pressure ◽  
Supercritical Carbon Dioxide ◽  
Phase Equilibria ◽  
Fluid Phase ◽  
Concentration Measurements ◽  
Fluid Phase Equilibria ◽  
Good Agreement ◽  
Supercritical Carbon

Phase equilibria data for the system ethanol/carbon dioxide for T = 313.15 K and pressures up to p = 7.9 MPa are presented. The measurements were made by Raman spectroscopy without the extraction of probes from the autoclave. To the authors knowledge this is the first use of Raman spectroscopy for phase equilibria investigations at high pressure with supercritical carbon dioxide. The data show very good agreement with literature data.

Brazilian green propolis extracts obtained by conventional processes and by processes at high pressure with supercritical carbon dioxide, ethanol and water

2017 ◽  
Vol 130 ◽  
pp. 189-197 ◽  
Author(s):  
Yaneth M. Monroy ◽  
Rodney A.F. Rodrigues ◽  
Marili V.N. Rodrigues ◽  
Anderson S. Sant’Ana ◽  
Beatriz S. Silva ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
High Pressure ◽  
Supercritical Carbon Dioxide ◽  
Brazilian Green Propolis ◽  
Supercritical Carbon
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