Bed Agglomeration Characteristics During Fluidized Olivine Bed Combustion of Typical Biofuels

A. Grimm, D. Boström, T. Lindberg, A. Fredriksson & M. Öhman
Controlled combustion and agglomeration experiments were conducted during eight hours in a bench– scale bubbling fluidized bed (5 kW) to determine the bed agglomeration tendencies of four different typical biomass fuels, namely: willow, logging residues, wheat straw, and wheat grain distillation residue (DDGS). Olivine and quartz were used as bed materials. Bed material samples and agglomerates were studied by means of scanning electron microscopy (SEM) in combination with energy–dispersive X–ray spectroscopy (EDX), in order to...