青海低变质煤低温干馏试验研究

The Research for Low-Temperature Carbonization of Low Metamorphic Coal in Qinghai

摘要: 针对青海省储量丰富的低变质煤资源，本文采用富氧低温干馏工艺开展了低变质煤热解实验研究。结果表明，低变质煤热解过程中，焦炭、焦油、焦炉煤气的产率受热解温度、低变质煤组分等因素的影响。随着热解温度的不断升高，焦炭的产率逐渐减小，而焦油和焦炉煤气的产率却呈现增加的趋势。同时热解产物焦炭的活性受其挥发分的影响，焦炭的活性随着其挥发分的升高而增加。本文的研究结果可为综合、高值化利用青海省低变质煤提供基础理论数据。

Abstract: The low metamorphic coal resources are rich in Qinghaiprovince. In this paper, the oxygen-rich low-tem- perature carbonization technique is used to study the pyrolysis process of low metamorphic coal. The results show that in the pyrolysis process of low metamorphic coal, the productive rate of coke, tar, coke-oven gas is impacted by pyrolysis temperature and the component of low metamorphic coal. With the increasing pyrolysis temperature, the productive rate of coke decrease, and the productive rate of tar and coke gas increase. The activity of coke is impacted by its vola- tility. The higher the volatility is, the higher the activity is. The results of this study provide a theoretical basis for com- prehensive and high value use of low metamorphic coal.