长焰煤是变质程度最低的一种烟煤,是煤化程度仅高于褐煤的最年轻烟煤,从无粘结性到弱粘结性的都有。 长焰煤是指镜质组最大反射率R介 于0.50% ~ 0. 65% 的高挥发分低煤阶烟煤。
鸳鸯湖矿区以不粘煤为主,长焰煤次之,是良好的煤化工和动力用煤。
Coal ranks in the Yuanyanghu mine area are mainly non-caking coal, long flame coal the second, all good coals for coal chemical industry and power plant.
固体热载体法低温快速干馏是一项对褐煤、油页岩和长焰煤进行综合加工利用的正在开发的新工艺。
The rapid pyrolysis process using solid heat carrier is a developing technology which is used for the comprehensive utilization of lignite, oil shale or subbituminous coal.
经等密度梯度离心分离,从褐煤、长焰煤、气煤和贫煤四种不同变质程度煤中获得了高纯度的有机显微组分。
Coal maceral concentrates of high purity were prepared from four different rank coals by Density Gradient Centrifugation method.
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