It is well established that supercritical fluids such as supercritical CO2 are dense fluids that do not demonstrate the often detrimental surface tensions and interfacial phenomena exhibited by other liquids. Supercritical CO2 has hence become widely used in the microelectromechanical systems (MEMS) industry to dry release devices while avoiding the liquid-vapor interface that can cause the cap...

I. Solubility in Supercritical Fluids II. Implications of Solubility in Supercritical Fluids III. Operation of s Supercritical Fluid Extraction Process IV. Industrial Applications of Supercritical Fluid Extraction A. Purification of Reactive Monomers B. Extraction/Fractionation of Polymers C. Extraction of Active Components from Botanical Substrates D. Supercritical Fluids in Non-Extractive App...

Eighty percent of the world's wastewater is discharged back into nature without reuse and further treatment solid byproduct either spread on land or landfilled. The valorization municipal sewage sludge for energy use a major opportunity sustainable applications. This includes effective dewatering drying in addition to producing biogas during anaerobic digestion. Supercritical CO 2 extraction pr...

Cochran, H.D., Cummings, P.T. and Karaborni, S., 1992. Solvation in supercritical water. Fluid Phase Equilibria, 71: 1-16. The aim of this work is to determine the solvation structure in supercritical water compared with that in ambient water and in simple supercritical solvents. Molecular dynamics studies have been undertaken of systems that model ionic sodium and chloride, atomic argon, and m...

Polyimide aerogels are promising for diverse applications owing to their nano-porous structure and superior properties. However, the shrinkage of melamine-crosslinked polyimide (MPI) has greatly compromised performance in practical applications. In this study, supercritical drying with ethanol rather than CO2 is employed enhance in-use shape stability at high temperatures. The structure, therma...