低中煤级煤结构演化的拉曼光谱表征

被引：64

作者：

李霞 ^{[1
,2
]}

曾凡桂 ^{[1
,2
]}

王威 ^{[1
,2
]}

董夔 ^{[1
,2
]}

机构：

[1] 太原理工大学煤科学与技术教育部及山西省重点实验室

[2] 太原理工大学地球科学与工程系

来源：

煤炭学报 | 2016年 / 41卷 / 09期

关键词：

低中煤级煤; Raman; 结构演化;

D O I：

暂无

中图分类号：

TQ531 [煤的性质与测定];

学科分类号：

082903 [林产化学加工工程];

摘要：

对28个最大镜质组反射率为0.30%2.05%镜煤样品的Raman谱图进行拟合,获得拉曼结构参数。随着煤样镜质组最大反射率增大,拉曼结构参数发生有规律变化,显示出煤结构演变的复杂性。结果表明:D1和G的位置、峰位差（G-D1）及G的半峰宽与反射率存在良好的相关关系,D1与G半峰宽的比值（ID1/IG）随反射率的增大也呈现出明显的分段性。在此基础上得到煤的结构演化分为3个阶段,分别是镜质组反射率0.3%0.8%,0.8%1.6%和1.6%2.0%。在镜质组反射率0.3%0.8%阶段,D1向低波数移动,而G向高波数移动,G的半峰宽呈现递减趋势,表明煤结构朝有序结构演化,同时,D1的半峰宽无明显规律,ID1/IG的变化不明显,反映芳香体系的形成比较缓慢;在镜质组反射率0.8%1.6%阶段,煤中D1和G的位置、峰位差和G半峰宽出现极值,响应了第2次煤化跃变;在1.6%2.0%的阶段,各参数逐步稳定,表明煤中微晶结构基本稳定,G峰半峰宽继续减小显示芳香结构的增大过程。

引用

页码：2298 / 2304

页数：7

共 25 条

[1]

Thermal behavior and the evolution of char structure during co-pyrolysis of platanus wood blends with different rank coals from northern China.[J].Haiyu Meng;Shuzhong Wang;Lin Chen;Zhiqiang Wu;Jun Zhao.Fuel.2015,

[2]

Second-order Raman spectroscopy of char during gasification.[J].Shuai Wang;Tingting Li;Liping Wu;Lei Zhang;Li Dong;Xun Hu;Chun-Zhu Li.Fuel Processing Technology.2015,

[3]

Influences of magmatic intrusion on the macromolecular and pore structures of coal: Evidences from Raman spectroscopy and atomic force microscopy [J].

Wu Dun ;

Liu Guijian ;

Sun Ruoyu ;

Chen Shancheng .

FUEL, 2014, 119 :191-201

[4]

Raman microspectroscopy of funginite from the Upper Silesian Coal Basin (Poland).[J].Rafał Morga.International Journal of Coal Geology.2014,

[5]

Relationship between coking coal quality and its micro-Raman spectral characteristics.[J].Rafał Morga;Iwona Jelonek;Krystyna Kruszewska.International Journal of Coal Geology.2014,

[6]

Simple procedure for an estimation of the coal rank using micro-Raman spectroscopy.[J].Ruth Hinrichs;Matthew T. Brown;Marcos A.Z. Vasconcellos;Miroslav V. Abrashev;Wolfgang Kalkreuth.International Journal of Coal Geology.2014,

[7]

Micro-Raman spectroscopy of collotelinite, fusinite and macrinite [J].

Guedes, A. ;

Valentim, B. ;

Prieto, A. C. ;

Rodrigues, S. ;

Noronha, F. .

INTERNATIONAL JOURNAL OF COAL GEOLOGY, 2010, 83 (04) :415-422

[8]

Raman spectroscopy of selected carbonaceous samples.[J].Barbara Kwiecinska;Isabel Suárez-Ruiz;Czeslawa Paluszkiewicz;Sandra Rodriques.International Journal of Coal Geology.2010, 3

[9]

Evolution of biomass char structure during oxidation in o2 as revealed with FT-Raman spectroscopy [J].

Keown, Daniel M. ;

Li, Xiaojiang ;

Hayashi, Jun-ichiro ;

Li, Chun-Zhu .

FUEL PROCESSING TECHNOLOGY, 2008, 89 (12) :1429-1435

[10]

Correlation between optical; chemical and micro-structural parameters of high-rank coals and graphite.[J].M. Marques;I. Suárez-Ruiz;D. Flores;A. Guedes;S. Rodrigues.International Journal of Coal Geology.2008, 3

← 1 2 3 →