IRANIAN JOURNAL OF CHEMICAL ENGINEERING Chairman Navid Mostoufi Professor, University of Tehran, Iran Editor-in-Chief Masoud Rahimi Professor, Razi University, Iran Executive Director Leila Sadafi-Nejad (M.Sc.) EDITORIAL BOARD  Abbasian, J. (Professor, Illinois Institute of Technology, USA)  Barikani, M. (Professor, Iran Polymer and Petrochemical Institute, Iran)  Jafari Nasr, M. R. (Professor, Research Institute of Petroleum Industry (RIPI), Iran)  Karimi, I. A. (Professor, National University of Singapore, Singapore)  Madaeni, S. S. (Professor, Razi University, Iran)  Mansoori, G. A. (Professor, University of Illinois at Chicago, USA)  Moghaddas, J. S. (Professor, Sahand University of Technology, Iran)  Moosavian, M. A. (Professor, University of Tehran, Iran)  Moshfeghian, M. (Professor, Shiraz University, Iran)  Movagharnejad, K. (Professor, Babol University of Technology, Iran)  Naseri, S. (Professor, Tehran University of Medical Sciences, Iran)  Omidkhah, M. R. (Professor, Tarbiat Modares University, Iran)  Pahlavanzadeh, H. (Professor, Tarbiat Modares University, Iran)  Panjeshahi, M. H. (Professor, University of Tehran, Iran)  Pazouki, M. (Professor, Materials and Energy Research Center (MERC), Iran)  Rahimi, M. (Professor, Razi University, Iran)  Rahimi, R. (Professor, University of Sistan and Baluchestan, Iran)  Rashidi, F. (Professor, Amirkabir University of Technology, Iran)  Rashtchian, D. (Professor, Sharif University of Technology, Iran)  Shariaty-Niassar, M. (Professor, University of Tehran, Iran)  Shayegan, J. (Professor, Sharif University of Technology, Iran)  Shojaosadati, S. A. (Professor, Tarbiat Modares University, Iran)  Soltanmohammadzadeh, J. S. (Associate Professor, University of Saskatchewan, Canada)  Taghikhani, V. (Professor, Sharif University of Technology, Iran)  Towfighi, J. (Professor, Tarbiat Modares University, Iran) INTERNATIONAL ADVISORY BOARD  Arastoopour, H. (Professor, Illinois Institute of Technology, USA)  Ataai, M. M. (Professor, University of Pittsburgh, USA)  Barghi, Sh. (Assistant Professor, University of Western Ontario, Canada)  Chaouki, J. (Professor, University of Polytechnique Montréal, Canada)  Ein-Mozaffari, F. (Associate Professor, Ryerson University, Canada)  Farnood, R. R. (Professor, University of Toronto, Canada)  Jabbari, E. (Associate Professor, University of South Carolina, USA)  Jand, N. (Assistant Professor, Universita de L’Aquila, Italy)  Lohi, A. (Professor, Ryerson University, Canada)  Moghtaderi, B. (Professor, University of Newcastle, Australia)  Mohseni, M. (Associate Professor, University of British Columbia, Canada)  Nassehi, V. (Professor, Loughborough University, UK)  Noureddini, H. (Associate Professor, University of Nebraska, USA)  Rohani, S. (Professor, University of Western Ontario, Canada)  Shahinpoor, M. (Professor, University of Maine, USA)  Soroush, M. (Professor, Drexel University, USA)  Taghipour, F. (Associate Professor, University of British Columbia, Canada) * This journal is indexed in the Scientific Information Database (http://en.journals.sid.ir/JournalList.aspx?ID=3998). * This journal is indexed in the Iranian Magazines Database (www.magiran.com/maginfo.asp?mgID=4585). * This journal is indexed in the Islamic World Science Citation Center (http://ecc.isc.gov.ir/showJournal/3561). Executive Colleague: Sara Bozorgi Language Editor: Shahla Azarmeh Art & Design: Fatemeh Hajizadeh Iranian Association of Chemical Engineers, Unit 11, No. 13 (Block 3), Maad Building, Shahid Akbari Boulevard, Azadi Ave., Tehran - Iran. Tel: +98 21 6604 2719 Fax: +98 21 6602 2196