54.石炭の予熱処理による炭化反応の制御

概要

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Coal pretreatments such as acid treatment and preheat-treatments in the temperature range of 350-450℃ by the different heating rates were examined in order to improve the pyrolytic reactivity and the coking properties of a non-fusible coal. The preheattreatment at 450℃ under the rapid heating condition of 100℃/min improved the coking properties with the higher block density, while the heattreatment at 500℃ by the flash heating rate of 3000℃/sec gave the silmilar effect. The preheattreatment around 400℃ under the pressurized condition was effective for the improvement of the fusibility of non-fusible coals. The mechanism and effect of coal pretreatments are briefly discussed based on the above results and chemical analyses of gaseous and residual products.
一般社団法人日本エネルギー学会の論文
1997-10-30