1. Department
of Chemical Engineering, ENTEG, University of Groningen, Nijenborgh
4, 9747 AG, Groningen, The Netherlands
2. Biomass Technology
Group BV, Josink Esweg 34, 7545 PN Enschede, The Netherlands
3. CNR-ITAE, Istituto
di Tecnologie Avanzate per l’Energia “Nicola Giordano”, Via S. Lucia sopra Contesse, 5-98126 Messina, Italy