1. Université de Toulouse, INSA−CNRS−UPS, LPCNO, 135 Avenue de Rangueil, Toulouse F-31077, Cedex 4, France
2. LCC−CNRS, Université de Toulouse, INPT, 205 Route de Narbonne, Toulouse F-31077, Cedex 4, France
3. LSRE−LCM, Chemical Engineering Department, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias s/n, Porto 4200-465, Portugal