无烟煤一种很亮的高密度煤，含炭量高，挥发性物质少，燃料时火焰纯净。
A dense, shiny coal that has a high carbon content and little volatile matter and burns with a clean flame.
以三种高挥发分烟煤为原料，对固体热载体煤热解获得的气、油、焦产物产率、组成和性质进行了考察。
Three high volatile bituminous coals were used pyrolysis with solid heat carrier to investigate the product distribution and characteristic of gas, tar and char.
不同煤种挥发份燃烧时产物中CO_2和CO的差异很明显，产物中CO_2浓度高的煤种，相应的CO也高。
For different coal, CO_2 and co difference is very obvious in outcomes of volatile combustion. If CO_2 density is high, co is also high.
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