Experimental study of the production of typical pollutants from underground coal fires
Underground Coal Fire (UCF) is a natural disaster associated with coal mining activities around the world, including in the Xinjiang region of China.It is difficult to quantify the impacts of UCFs on the environment.The present study focused on characterizing the production of typical pollutants from UCFs, which is needed for assessing the impacts of UCFs on the environment.A programmed heatingoxidation experiment was used to study coal oxidation and combustion.A thermogravimetric analysis was also performed to quantify the kinetics of coal oxidation, such as the characteristic temperatures, the reaction activation energy and the frequency factor.In addition, a chemistry simulation tool, FACTSage,was used to study the production of typical pollutants from coal oxidation and combustion under different conditions.Results showed that the main gaseous pollutants were carbon monoxide, carbon dioxide, and some trace CnHm gases.Carbon monoxide, carbon dioxide, and methane were the main greenhouse gases produced.The results also showed that changes in the reaction rate constant with temperature followed a similar pattern to changes in the oxygen consumption rate and the production rate of carbon monoxide.The reaction temperature affected the distribution of products from coal oxidation to some extent.
Y.Pu Q.Zeng Z.M.Cao S.K.Jin L.H.Zhao
Institute for Arid Ecology and Environment, Xinjiang University, Urumqi, China School of Resource and Environment Sciences, Xinjiang University, Urumqi, China School of Metallurgical and Ecological Engineering, Beijing University of Science and Technology, Be Xinjiang Coal Research Institute, Urumqi, China Institute for Arid Ecology and Environment, Xinjiang University, Urumqi, China;School of Resource an
国际会议
The 2nd International Symposium on Land Reclamation and Ecological Restoration (第二届国际土地复垦与生态修复学术研讨会)
西安
英文
521-527
2017-10-20（万方平台首次上网日期，不代表论文的发表时间）