Abstract
Slag vaporization is a serious problem in high-temperature coal combustion and gasification processes. As the combustion or gasification gases cool on passage through process equipment, the slag will recondense, often with very deleterious effects. For example, in gasification processes even small concentration of slag vapors can result in poisoning of catalysts and fouling of heat exchanger tubes. The ultimate goal of this research program is to create an apparatus capable of studying the nucleation of the products found in high temperature coal gasification and combustion. Since real coal combustion is a very complicated process with many reaction species, an experimental design was chosen which will allow successively more complicated reactant streams to be used, yet which at every stage are quite realistic approximation to real processes. A multiported flat flame burner, was constructed for the study. Preliminary nucleation studies are described. (WHK)
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