As a feed coal,rational mixed coals of the upper -layer and mi ddle -layer coal in Yilan Coal Minera ls,and of lignite and the long frame coal are experimentally investigated.

• 分析了哈尔滨气化厂入炉煤质量尤其是灰分含量对气化率及其经济效益的影响,探讨了依兰煤矿上层煤、中层煤合理搭配,褐煤与长焰煤合理搭配作为入炉原料煤的方案,提出了相应的改进措施。