Gaseous emissions and sublimates from the Truman Shepherd coal fire, Floyd County, Kentucky: A re-investigation following attempted mitigation of the fire
Gaseous emissions and sublimates from the Truman Shepherd coal fire, Floyd County, Kentucky: A re-investigation following attempted mitigation of the fire
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DOI：
10.1016/j.coal.2013.06.007
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发表时间：
2013-09-01
影响因子：
5.6
通讯作者：
Silva, Luis F. O.
中科院分区：
文献类型：
--
作者：
Hower, James C.;O'Keefe, Jennifer M. K.;Silva, Luis F. O.
在过去的四年里，肯塔基州弗洛伊德和诺特县的杜鲁门谢泼德煤矿火灾一直是几次实地调查的主题。在2011年7月和11月以及2012年1月的实地调查中，我们测量了气体排放，收集了矿物，并对火灾的性质进行了表征。在研究过程中，新的喷口打开了，自2012年1月以来一直在继续打开，与大火向东推进的时间一致。这是对肯塔基州煤火的第一次研究，除了在随后的每次旅行中研究新的通风口之外，还可以研究原始的通风口。与喷口伴生的新形成矿物主要为硫酸铵和氯化铵，并有少量沸石。BTEX的排放量，尤其是苯的排放量差异很大，从相对较低到与非常大的火灾（如怀俄明州的Ankney煤火）相当。所收集的通风口排放数据显示，从7月到1月，二氧化碳和一氧化碳排放量总体呈下降趋势。预计该火灾每年排放的温室气体和汞为65.69 t CO2, 4.51 t CO， 5.73 t CH4和1.667 kg Hg。2011年11月的CO/CO2比值表明，该系统的燃烧比研究期间的任何其他时间都更完全，可能表明系统中的水分减少。(C) 2013 Elsevier B.V.版权所有
The Truman Shepherd coal mine fire, Floyd and Knott counties, Kentucky, has been the subject of several field investigations over the last four years. During July and November 2011 and January 2012 field investigations, we measured gas emissions, collected minerals, and characterized the nature of the fire. New vents opened over the course of the study and have continued to open since January 2012, coincident with the eastward advance of the fire. This is the first study of Kentucky coal fires where the original vents were able to be studied in addition to new vents on each subsequent trip. Neoformed minerals associated with the vents are primarily ammonium sulfates and ammonium chlorides with minor zeolites. BTEX emissions, especially benzene, vary considerably, ranging from relatively low to comparable to those from very large fires, such as the Ankney coal fire in Wyoming. Vent emission data collected displays a general trend of decreasing carbon dioxide and carbon monoxide emissions from July through January. The projected annual greenhouse gas and mercury emissions from the fire are 65.69 t of CO2, 4.51 t of CO, 5.73 t of CH4, and 1.667 kg Hg. The November 2011 CO/CO2 ratios are indicative of more complete combustion than at any other time during the study, possibly indicative of decreased moisture in the system. (C) 2013 Elsevier B.V. All rights reserved.