Torrefaction of woody biomass under an oxidizing atmosphere and its effect on fixed bed gasification

ABSTRACT: In this work, it is studied what the effect of torrefaction conditions under an oxidizing atmosphere on wood biomass properties and gasification process is. Chapter 1 explains the research objectives and contribution of the present work. Chapter 2 presents the effect of torrefaction temperature and residence time on physicochemical properties of patula pine. Furthermore, several parameters are evaluated in order to determine the properties of torrefied pine as solid fuel. In chapter 3, thermal behavior, and changes in chemical structure and morphology of torrefied patula pine at different conditions is studied. Finally, chapter 4 evaluates the effect of torrefied pine on fixed bed gasification process using a model in thermochemical equilibrium