煤耗氧速率与CO生成速率的计算及实验论证

发布时间：2017-12-28 02:06

本文关键词：煤耗氧速率与CO生成速率的计算及实验论证　出处：《中国矿业大学学报》2016年06期 　论文类型：期刊论文

【摘要】：煤氧反应一直被视作基元反应,从而由质量作用定律得到"耗氧速率、CO生成速率均与环境氧浓度成正比关系"的推论,但尚待论证.本文在5种不同进气氧浓度下分别对两个矿的煤样进行了低温氧化实验,推导了实验过程中标准耗氧速率与标准CO生成速率的计算式.结果表明,相同温度下,同一矿各煤样的标准耗氧速率或标准CO生成速率都相等.这说明,虽然进气氧浓度不同,但同一温度下相同煤样所消耗氧气的比例总是一定的,且CO总生成量与氧气总消耗量的比值也是一定的,由此证实了上述推论.微观分析表明,煤低温氧化时的耗氧过程的确可视为基元反应.
[Abstract]:The coal and oxygen reaction has been regarded as the elementary reaction, which by the law of mass action "oxygen consumption rate, the rate of CO formation and the ambient oxygen concentration is proportional to the inference, but has yet to be demonstrated in this article. The 5 different inlet oxygen concentration of coal on the two mines were carried out in the low temperature oxidation experiments. Is derived in the course of the experiment the standard oxygen consumption rate and standard rate of CO formation. The results showed that under the same temperature, the same kind of coal mine the standard oxygen consumption rate or standard rate of CO formation are equal. This shows that although the different inlet oxygen concentration, but at the same temperature the same coal consumption of oxygen the ratio is always certain, and the ratio of CO total production and total consumption of oxygen is certain, which confirmed the above inference. Microscopic analysis showed that the oxygen consumption of coal low temperature oxidation process is regarded as reactions.
【作者单位】：中国矿业大学(北京)资源与安全工程学院;
【基金】：国家自然科学基金项目(51604277,51574249,51174211)
【分类号】：TD752.2
【正文快照】： 煤自燃是良好蓄热环境下煤氧化反应的最终结果[1].煤的氧化会消耗环境中的氧气,同时产生CO,CO2和H2O等气体.由于氧气的消耗速率能反映煤自燃的激烈程度,而CO是煤自燃的主要指标气体[2],故耗氧速率与CO生成速率一直都是煤自燃研究中的热点.文献[3-4]根据阿累尼乌斯式建立了地下

【相似文献】