含氧官能团对褐煤型煤防水性的影响
首发时间:2012-03-26
摘要:由于对煤炭资源需求的日益增长,褐煤的开发利用也越来越受到人们的重视。热压提质技术是一种比较好的有效用褐煤的方法。防水性是反映褐煤型煤质量的一个重要指标。本研究中,在实验室管式干燥炉和气流干燥试验中试线上烘干一种褐煤。分析不同的温度下褐煤中含氧官能团的含量。结果表明:随着温度的升高褐煤中羧基官能团和酚羟基的数量下降,酚羟基对褐煤型煤的防水性起着很重要的作用。
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The Effect of Oxygen-Functional groups on the Water resistance of Lignite briquette
Abstract: Because of the increased demand for coal resources, the use of low-quality lignite increased. Heating-Pressing Utilizing is a better method to process fine lignite particles. The water resistance of lignite briquettes is important. In this study, the Baorixile lignite was dried in a lab-scale tube reactor and on pilot line. The oxygenic functional groups of lignite were analyzed at different temperature. The result indicated that carboxyl groups and phenols decreased as the temperature increasing, and phenols plays a more important role on the waterproof of lignite briquettes, especially at high temperature.
Keywords: lignite oxygen-functional groups briquette water resistance
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