Solid-Supercritical Fluid Equilibrium: Experimental and Theoretical Studies of Partial Molar Volumes and Solubilities

Solvent-solute interactions present in a supercritical mixture were indirectly observed by measuring both the solubilities and partial molar volumes of relatively simple organic solids dissolved in the fluid phase between 12-70(DEGREES)C and 50-450 Bar. Results of solubility experiments for naphthalene dissolved in supercritical ethane and anthracene, phenanthrene and triphenylmethane in both ethane and carbon dioxide indicated strong and highly nonideal solvent-solute interactions. Observed solubilities were a factor of 10('3)-10('8) of that predicted using only the ideal gas law. The data were used to develop a simple, semi-empirical solid-super-critical fluid solubility correlation which requires only one correlated temperature independent pure component parameter for both the solute and solvent.

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Chemical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Ziger, David Howard

• Engineering, Chemical

Identifier

(UMI)AAI8324679

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/69735