Prof. Dr. Frederic Marias completed his M.Sc degree in 1995 at the University of Pau and Pays de l’Adour at the Department of Chemical Engineering (Ecole Nationale Supérieure en Génie des Technologies Industrielles). He began his PhD Thesis in 1996 on the topic of the modelling of the Fluidized bed Incineration Process. He obtained his PhD by the end of 1999 in energetic and transfer. Then, he joined the Imperial College of Science Technology and Medicine in London at the Centre for Process System Engineering for 8 months where he worked on the coupling between CFD and CAPE tools, applied to crystallization and incineration in rotary kilns. He is presently a Professor in Chemical Engineering at the University of Pau and Pays de l’Adour. The current field of research includes modelling of reactors devoted to waste and biomass thermal treatment.