This book has covered some essential innovations on Fluidized Bed Combustion (FBC) of high-volatile matter (VM) fuels especially using porous solids as bed material. The delayed onset of devolatilization is expected to broaden the area of devolatilization in the reactor, thus to avoid formation of local VM-rich zone in the freeboard. A new method has been developed to evaluate horizontal dispersion of solids at high bed temperatures that resemble those of commercial operations. As the first step to scaling-up of the FBC system using carbon loaded solids prepared by capacitance effect, the...