1. Laboratory for Chemical Engineering and Plant Design, Helsinki University of Technology, P.O.B. 6100, FIN-02015 HUT, Espoo, Finland, Chemical Engineering Laboratory, Aalborg University Esbjerg, Niels Bohrs Vej 8, DK-6700, Esbjerg, Denmark, and Process Chemistry, VTT, P.O.B. 1000, FI-02044 VTT, Finland