A new correlation to predict the stability of liquid jet in dense carbon dioxide

Abstract

The stability of liquid jet of dichloromethane in dense carbon dioxide was investigated in an aerosol solvent extraction system (ASES). The stability experiments were carried out at pressures ranging 30-150 bar and a temperature of 308 K, with a nozzle size diameter of 0.254 mm. Interfacial tensions of dichloromethane-carbon dioxide system were measured using a capillary rise method to correlate the stability of liquid jets with a dimensionless number. A new dimensionless number, Z*, was proposed to define an atomization flow regime of the liquid jets in dense carbon dioxide. (C) 2008 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.