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首页> 外文期刊>Solid Fuel Chemistry >Thermal Transformations of Low-Metamorphozed Kuzbass Coals in Different Atmospheres and Prediction of Coal Hydrogenation Ability in Direct Liquefaction Processes
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Thermal Transformations of Low-Metamorphozed Kuzbass Coals in Different Atmospheres and Prediction of Coal Hydrogenation Ability in Direct Liquefaction Processes

机译：不同气氛中低聚夸氏夸氮化合物的热变换及直接液化过程中煤氢化能力的预测

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The yields of coal liquids (maltenes and asphaltenes) formed upon the heat treatment of three low-metamorphosed Kuzbass coals with different hydrogenation ability parameters in an atmosphere of hydrogen were compared. It was found that the H/C atomic ratios, the yields of volatile substances, the relative maximum rates of pyrolysis of coals in a range of 300-500 degrees C, and the ratios between aliphatic and aromatic structures [(D-2920 + D-2860)/D-1600] in the test coals increased linearly with an increase in the yields of liquid products in the order Karakan long-flame coal Itat brown coal Barzas sapromixite. The best correlation (R = 0.9792) was observed between the yields of liquid products and the [(D-2920 + D-2860)/D-1600] ratios. The thermal transformations of two types of Barzas sapromixites [a tile-like modification ("tile") and its weathering product (gunny-like coal)] in different atmospheres (H-2 and CO2) were studied. It was found that a higher yield of coal liquids was observed upon the heat treatment of the Barzas sapromixites in an atmosphere of hydrogen, as compared with that upon their thermal conversion in an atmosphere of carbon dioxide. In the course of the heat treatment of the tile-like Barzas coal in an atmosphere of hydrogen, the yield of coal liquids (similar to 37.7 wt %) was higher by a factor of 1.5 and the yield of gases (similar to 10.3 wt %) was lower by a factor of 2 than those in similar experiments with the gunny-like coal.
机译：比较了在氢气气氛中具有不同氢化能力参数的三种低位旋转的夸氮碳煤的热处理中形成的煤液（Malten和沥青）的产率。发现H / C原子比，挥发性物质的产率，煤中煤中热解的相对最大速率，以及脂族和芳族结构之间的比率[（D-2920 + D之间的比率在测试煤中的-2860）/ D-1600]线性增加，随着甲木长火焰煤的液体产品产量的增加而增加。泰铢棕煤＆ Barzas sapromixite。在液体产物的产率和[（D-2920 + D-2860）/ D-1600]比率之间观察到最佳相关性（R = 0.9792）。研究了两种类型的Barzas sapromixites的热变换[瓷砖状改性（“瓦片”）及其在不同大气（H-2和CO2）中的风化产品（Gunny样煤）。结果发现，在氢气气氛中，在氢气的热处理时观察到煤液的热处理，与二氧化碳气氛中的热转化相比，观察到氢气气氛中的热处理。在氢气气氛中的瓷砖状的巴扎斯煤的热处理过程中，煤液的产率（类似于37.7wt％）较高且GT; 1.5和气体产率（类似于10.3 wt％）低于＆ 2比与枪的煤相似实验的倍数。

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