Chemical Process Engineering and Forest Products Research Centre

Session 14


Research Seminar #14

Seminar Presentations:

September 18, 2013, 14h15-15h15

José Granjo, "Biofuel production processes based on systematic optimization methodologies"

September 25, 2013, 14h15-15h15

“Supercritical Fluids: Applications and Opportunities”

Silvio A. B. Vieira de Melo
Universidade Federal da Bahia, Brasil

Supercritical fluid processes for the natural products extraction have been the focus of intensive research for more than 30 years and commercial plants are spread worldwide. More recently, new research interests have been growing on biomass, materials, pharmaceuticals and so on. 

In this talking, some applications of supercritical fluids processing on the formation of pharmaceutical particles are presented. Some precipitation techniques are shown according to the role of the supercritical fluid in the process: Rapid Expansion of Supercritical Solutions (RESS), Gas Antisolvent (GAS), Supercritical AntiSolvent (SAS) and Particles from Gas-Saturated Solutions (PGSS). Three case studies are targeted to pharmaceutical nanoparticles formation and encapsulation in supercritical fluid medium for controlled drug delivery systems.