1974 Volume 60 Issue 14 Pages 2098-2109
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 1 100°C 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 60kcal 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 experi-mental blast furnace operation because of the difference of various conditions besides coke reactivity be-tween the standard period and the test period. But the decrease of corrected coke rate from 688kg/t in the standard period to 592kg/t in the test period suggested that more than 23kg/t of carbon, at least, could be saved by the use of the petroleum coke.
