1. Department of Chemical Engineering, Universidad de Concepción, P.O. Box 160-C, Correo 3, Concepción, Chile, Department of Chemical Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel, and Departamento de Ingeniería Química, Facultad de Química, Universitat de València, 46100 Burjassot, Valencia, Spain