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首页> 外文期刊>Fuel >Analysis Of Hydrothermally-treated And Weathered Coals By X-ray Photoelectron Spectroscopy (xps)
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Analysis Of Hydrothermally-treated And Weathered Coals By X-ray Photoelectron Spectroscopy (xps)

机译：X射线光电子能谱（xps）分析水热处理和风化煤

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Analysis of hydrothermally-treated and weathered coals by X-ray photoelectron spectroscopy (XPS) was carried out, and the XPS C(1s) and N(1s) spectra obtained were curve-resolved into four peaks (C-C/C=C/ C-H, C-O, C=O, and O-C=O) and three peaks (pyridinic-N, pyrrolic-N, and quaternary-N), respectively. Upon hydrothermal treatment, the amount of carbon-oxygen forms decreased; while the ratio of pyridinic-N increased and quaternary-N decreased. On the other hand, some bituminous coals were subjected to natural weathering and laboratory oxidation, which gave opposite results compared to the hydrothermal treatment. The changes in the carbon-oxygen and organic nitrogen forms were discussed in terms of the effect of hydrothermal treatment and weathering (oxidation). Also, the XPS analysis of various kinds of coals (43 SS coals) was carried out, and the amounts of carbon-oxygen and organic nitrogen forms were discussed in terms of coal rank (carbon content).
机译：通过X射线光电子能谱（XPS）对经过水热处理和风化的煤进行分析，并将获得的XPS C（1s）和N（1s）光谱曲线拆分为四个峰（CC / C = C / CH ，CO，C = O和OC = O）和三个峰（吡啶N，吡咯N和季N）。经水热处理后，碳-氧形式的数量减少了。吡啶氮的比例增加，季氮的比例减少。另一方面，一些烟煤经历了自然风化和实验室氧化，与水热处理相比，结果相反。根据水热处理和风化（氧化）的影响，讨论了碳氧和有机氮形式的变化。另外，还进行了各种煤（43种SS煤）的XPS分析，并根据煤级（碳含量）讨论了碳-氧和有机氮形式的含量。

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