1. Department of Chemical Engineering, Bio- & Chemical Systems Technology, Reactor Engineering and Safety Section, KU Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
2. Department of Chemical Engineering, Process and Environmental Technology Lab, KU Leuven, Jan De Nayerlaan 5, 2860 Sint-Katelijne-Waver, Belgium
3. School of Engineering, University of Warwick, Coventry CV4 7AL, UK