VLE measurements at elevated pressures for process development

Bioseparation of Nutraceuticals Using Supercritical Carbon Dioxide

“…Several reviews discussing the pros and cons of the various experimental methods can be found elsewhere (Deiters and Schneider 1986;Dohrn and Brunner 1995;Nagahama 1996). However, some challenges that can be encountered when measuring solubilities are highlighted here and discussed briefly, using the case of b-carotene as an example.…”

A New Phase Behavior Apparatus for Supercritical Fluid Extraction Study

“…stainless steel tubing. The internal volume of each of the two cylinders is about 100 cm 3 . The internal volume is varied with a piston, which is in turn driven by a Ruska pump filled with hydraulic oil.…”

“…In recent years, because of the increased interests in supercritical fluid extraction processes, there has been a great demand for high-pressure experimental VLE data. Several recent papers reviewed the experimental apparatus for generation of these data. − …”

“…Several recent papers reviewed the experimental apparatus for generation of these data. [1][2][3][4] The measurement of phase equilibria involves the determinations of pressure, temperature, phase compositions and phase amounts. To perform such an experiment, a high-pressure chamber that can contain a fluid mixture existing as equilibrium vapor and liquid is needed.…”

Παραγωγή Βιοαποικοδομήσιμων Και Βιοσυμβατών Μικροκυψελωτών Υλικών

“…Η θεωρία πλεγµατικού (ή δικτυακού) ρευστού µη τυχαίας διευθέτησης (non random hydrogen bonding, NRHB) [Panayiotou 2003, Panayiotou et al 2004 αποτελεί βελτίωση της θεωρίας δικτυακού ρευστού [Sanchez and Lacombe 1976α]. Η εξέλιξη του µοντέλου έγινε σταδιακά µέσα στην τελευταία εικοσαετία [Panayiotou and Vera 1980, Panayiotou and Sanchez 1991, Taimoori and Panayiotou 2001, Panayiotou 2003, Panayiotou et al 2004 Με βάση τον τρόπο προσδιορισµού των συστάσεων, οι πειραµατικές µέθοδοι προσδιορισµού ισορροπίας φάσεων διακρίνονται σε δύο κατηγορίες, [Dohrn and Brunner 1995, Fornari et al 1990, Nagahama 1996. Αυτές είναι: α) οι αναλυτικές µέθοδοι (ή µέθοδοι απευθείας ανάλυσης) και β) οι συνθετικές µέθοδοι (ή ασυνεχείς µέθοδοι)…”