1. Department of Chemical Engineering, Loughborough University, Loughborough, Leichestershire Le11 3TU, United Kingdom
2. Davidson School of Chemical Engineering, Purdue University, West Lafayette, Indiana 47907-2100, United States
3. Department of Chemical Engineering, Babes-Bolyai University, Arany Janos Street 1, Cluj-Napoca 400028, Romania
4. Chemical, Materials and Metallurgical Engineering Department, Botswana International University of Science and Technology, Palapye, Botswana