Study on Existing Form of Low Molecular Weight Compounds in Deformed Coal
Using soxhlet solvent extraction method, the deformed coal and the undeformed normal coal were studied comparatively, and the extraction kinetics of them was analyzed. Adopting GC/MS combined technique, the saturated hydrocarbon and aromatic hydrocarbon biomarker composition was analyzed systematically, which were extracted from deformed coal and normal coal of Pingdingshan Coalmine. The experimental results show that the extraction ratio of deformed coal is deferent greatly from that of the normal coal. The extraction ratio of deformed coal is about more than doubled of normal coal, and the low molecular weight compounds of deformed coal is much more than that of the normal coal. In the progress of the deformed coal formation, the components of NPH (n-paraffin hydrocarbon compounds) in it changed significantly. The heavy components of the NPH in the deformed coal increased significantly and the fused aromatic compounds of the NPH also increased. However, there are decomposition happened in the deformed coal evolution process. So the non-condensed aromatic of poor chemical stability and mixed aromatic compounds contents reduced.
deformed coal solvent extraction low molecular weight compounds existence form
HOU Jinxiu ZHANG Jinchun ZHANG Yugui
School of Safety Science and Engineering, Henan Polytechnic University, Jaozuo 454000, Henan, China
国际会议
The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)
杭州
英文
1525-1529
2010-10-26（万方平台首次上网日期，不代表论文的发表时间）