53 加圧流動層燃焼における石灰石磨耗(ガス化(1),燃焼,液化)

概要

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Limestone attrition is a major cause of loss of limestone during pressurized fluidized bed combustion. In the previous works, the analysis of published results of solid attrition and desulfurization was conducted to determine the attrition rate expression. The previous results showed that the attrition rate is second order with respect to particle diameter. This rate expression implies that reduction of feed size of limestone is effective for suppression of loss of limestone by attrition. However, too much grinding of raw limestone will increase the content of fine particles that are readily elutriated by gas stream and do not contribute to the sulfur capture. In this work, modeling works are conducted for particle attrition and desulfurization in order to predict the effect of feed size of limestone on total consumption of limestone and desulfurization is discussed.
一般社団法人日本エネルギー学会の論文
2007-10-11