石油コークスの性状と試験高炉における使用試験

概要

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The petroleum coke, which has the reactivity less than that of ordinary metallurgical coke, was used in the experimental blast furnace for the purpose of investigating the effect of the reactivity on coke rate. Some properties of this coke were examined and compared with those of ordinary metallurgical coke prior to the blast furnace operation. Following results were obtained : 1) The effect of the difference of reactivity between metallurgical and petroleum coke was observed clearly at the temperature ranging from 900 to 1100℃ and the gasification rate of the latter was about half as much as the former within this temperature range. Nearly the same activation energy of about 60 kcal per mole was obtained for these two sorts of coke. 2) The effect of lower reactivity on coke rate was not estimated directly from the results of the experimental blast furnace operation because of the difference of various conditions besides coke reactivity between the standard period and the test period. But the decrease of corrected coke rate from 688 kg/t in the standard period to 592 kg/t in the test period suggested that more than 23 kg/t of carbon, at least, could be saved by the use of the petroleum coke.
社団法人日本鉄鋼協会の論文
1974-12-01