Reactivity of Coke (II):Reactivity of Coke from Coal Blend
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概要
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Reactivities of many different cokes produced from coal blend by 1 kg test retort or 330kg test oven have been measured using the method which was illustrated at previous report, and next results have been obtained.<BR>(1) Reactivity of coke from coal blend can be predicted relatively by the reactivities from unblended coals which compose the blend, but the reactivity from coal blend does not correspond to that calculated on the basis of additivity.<BR>(2) Adding coal tar pitch to unblended coal or coal blend, coke reactivity becomes low, and the effect of it is especially good at a little addition.<BR>(3) The effect of oil coke to coke reactivity is complicated. Blending green oil coke to unblended coal or coal blend, the reactivities of cokes produced from some blends have a minimum value at a little blending rate (about 5%) of green oil coke, but those from other blends have not such a phenomenon.<BR>(4) Correlation coke reactivity and microstrength is found with cokes produced from similar coal blend. But the correlation becomes doubtful with cokes produced from coal blend in which coal tar pitch or green oil coke is blended.<BR>(5) Correlation between reactivity of fine coke and apparent specific gravity or porosity of lump coke is found only with the cokes produced from similar coal blend at equal carbonization temperature. That is, macroscopic property of lump coke effects to reactivity of fine coke to some extent.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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