Abstract
A high temperature fluidized bed unit was used with simultaneous liquid injection and jet attrition, using separate nozzles that were located to allow for interactions between the jet cavities they created in the fluidized bed. The effect of jet interactions on liquid–solid contact and particle attrition was studied. When the attrition nozzle was located and inclined so that its jet would interact with the spray jet, there was a large reduction in the formation of large liquid–solid agglomerates, but particle attrition was reduced and the formation of fines was increased. The best results were obtained when the attrition jet hits the spray jet at its base, just downstream of its nozzle tip.
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