Pyrolysis of superfine pulverized coal. Part 4. Evolution of functionalities in chars

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• 作者：Jiaxun Liu ; Yang Ma ; Lei Luo ; Junfang Ma ; Hai Zhang ; Xiumin Jiang ; ^{xiuminjiang@sjtu.edu.cn}
• 关键词：Superfine pulverized coal ; Coal pyrolysis ; Char chemical property ; Functional groups ; X-ray photoelectron spectroscopy ; Nuclear magnetic resonance spectroscopy
• 刊名：Energy Conversion and Management
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：134
• 期：Complete
• 页码：32-46
• 全文大小：2468 K
• 卷排序：134

文摘

A combination of XPS and NMR is adopted for analyzing char chemical structures during superfine pulverized coal pyrolysis. The chemisorbed NO can be transformed into pyridine N with the favor of adjacent oxygenated groups in chars. Particle size has significant influence on oxygen-containing configurations in chars.