1. a Chemical Engineering School , State University of Campinas , P.O. Box 6066, Campinas-SP 13081-970, Brazil
2. b Chemical Engineering Department, Polytechnic School , Federal University of Bahia , Rua Aristides Novis, 2 Federação, 40210-630 Salvador-BA, Brazil
3. c PF&PT Research Team, Department of Chemical Engineering, Technical High School of Engineering , University of Santiago de Compostela , Rúa Lope Gómez de Marzoa, 15782 Santiago de Compostela, España
4. d Departamento de Ingeniería Química , Universidad del País Vasco , Apartado 450, 01006 Vitoria, España