摘要
采用傅里叶红外(FTIR)及X-射线衍射(XRD)对反应前后煤体的结构进行检测,结果表明:原煤样经酸氧化、白腐真菌降解以及随后的模拟产气实验后,芳香环逐步被打开,芳香层片间距增大,芳香层数减少,碳碳键断裂处引入了羟基等官能团;煤样的大分子结构被降解,芳香结合程度降低。这表明所选取菌群可以有效降解低变质程度煤。
Coal structure of pre and post reaction was detected by FTIR and XRD. Experiment results show that its aro- matic ring is gradually opened, distance between aromatic plane largen, the number of aromatic plane decreases through acid oxidation, white rot fungus degradation and the subsequent biogenic methane production simula- tion, carbon-carbon bond has been broken and functional groups is added into the structure such as hydroxy etc. Mac- romolecular structure of the coal sample is degradated and the aromatic combination is reduced. All these show the se- lected bacterium can degrade low-rank coal effectively.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2013年第1期129-133,共5页
Journal of China Coal Society
基金
国家自然科学基金资助项目(40972109
41002047)
高等学校博士学科点专项科研基金资助项目(200804600001)
关键词
煤结构
红外光谱
XRD
低阶煤
生物甲烷
coal structure
infrared spectroscopy
X-ray diffraction
low-rank coal
biogenic methane
