The role of pore structure on char reactivity. Quarterly progress report, [October--December 1995]

In order to examine the role of pore structure, studies will be conducted on coal chars in the electrodynamic balance. Larger particles will also be examined using a fluidized bed to examine diffusion control reactions, and soots will also be investigated to examine the role of meso- and micro-pores without macro-pore interference. These studies will allow a full range of particles sizes and temperatures to be investigated and eventually modelled. The project has examined the effect of the pore structure diffusivity changes on the generation of NO{sub x} and N{sub 2}O from the Fluidized Bed Combustor. Furthermore, refinement of the techniques necessary to determine micropore characteristics from TEM imaging have been further refined. The continuing focus of this research has been the examination of the evolution of model compounds such as spherocarbon during oxidation in order to simplify structural analysis. The structure of spherocarbon now has been fully analyzed at three conversions (0, 44, and 96% conversion)