煤常温静态吸氧试验探讨

Study on static oxygen absorption experiment of coal at normal temperature

通过自制煤常温静态吸氧装置,进行了煤在常温静态吸氧试验研究,探讨了煤静态平均吸氧速度常数与吸氧量的关系,试验结果表明,煤的低温氧化是煤本身的吸氧能力决定的;煤样静态吸氧速度常数与吸氧量成线性关系;煤静态平均吸氧速度常数可用来确定煤的低温氧化的倾向性;在常温下,煤氧复合过程是物理吸附、化学吸附及化学反应同时进行过程。

By using self made static oxygen absorption equipment of coal at normal temperature, a serial of static oxygen absorption experiments at normal temperature are done. The relationship between mean oxygen absorption velocity and oxygen absorption quantity of coal at static state are studied, according to the results, the oxidation at lower temperature of coal depends on the oxygen absorption ability of coal itself; there is a linear relationship between the velocity constant of static oxygen absorption of coal and oxygen absorption quantity of coal; mean velocity constant of oxygen absorption of coal can be used to determine the orientation of oxidation at lower temperature of coal; at normal temperature, the combination process of coal and oxygen is a process in which physical adsorption, chemical adsorption and chemical reaction go along simultaneously.