煤油共生矿区含油煤层自燃特性试验研究

发布时间：2018-03-01 18:43

  本文关键词： 煤油共生 含油煤样 自燃特性 程序升温 耗氧速率　出处：《中国安全科学学报》2015年04期 　论文类型：期刊论文

【摘要】：为研究煤油共生矿区煤自燃特性,利用煤氧化动力学测定系统,测试原煤样与含油煤样。根据煤自燃倾向性判定标准、耗氧速率及煤氧复合反应理论,分析试验结果。以铜川下石节煤矿煤样和原油样品(煤岩渗出的油,文中称为原油)为例,向原煤样中添加一定量的原油制备含油煤样,通过试验获得原煤样与含油煤样低温阶段(30~240℃)的自燃特性参数。研究结果表明,2种煤样自燃倾向性等级均为自燃,但原煤样更接近于易自燃;相同温度条件下含油煤样的耗氧速率、CO与CO2的生成量均比原煤样小;在低温氧化阶段,造成上述结果的主要原因是,原油充填了煤样的部分空隙和孔隙,阻碍了煤氧复合反应。
[Abstract]:In order to study the spontaneous combustion characteristics of coal in coal-oil symbiotic mining area, the coal oxidation kinetics measurement system was used to test the raw coal sample and the oil-bearing coal sample, according to the determination standard of coal spontaneous combustion tendency, the oxygen consumption rate and the coal-oxygen compound reaction theory. Taking the coal sample and crude oil sample (oil exudated from coal and rock, called crude oil) as an example, a certain amount of crude oil was added to the raw coal sample to prepare the oil-bearing coal sample. The spontaneous combustion characteristic parameters of raw coal sample and oil-bearing coal sample at low temperature stage (30 ~ 240 鈩，

本文编号：1553114