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Petrologic Characteristics and Chemical Structures of Macerals in a Suite of Thermally Altered Coals by Confocal Raman

文献类型：期刊论文

作者Chen, Hao2; Wang, Shaoqing2; Deng, Jinsong2; Zhang, Xiaomei2; Liu, Yu2; Li, Xiaoguang1
刊名ACS OMEGA
出版日期2021-12-14
卷号6期号:49页码:33409-33418
ISSN号2470-1343
DOI10.1021/acsomega.1c03922
英文摘要Thermally altered coals affect the safety and efficiency of coal mining and utilization, but most studies of thermally altered coal have only focused on the whole coal instead of on different macerals. Thermally altered coals have complex and special maceral components; not only intrinsic macerals but also newly formed macerals such as pyrolytic carbon can be observed. The shape and texture of intrinsic macerals also change significantly after thermal alteration, especially for vitrinite. Therefore, employing an in situ testing method to study the macerals in thermally altered coals is necessary. Herein, a confocal Raman imaging microscope was used. Results show that macerals become coked in samples adjacent to the sill, and circular mosaic texture is the most common texture observed in this series of samples. In samples away from the sill, inertinite is isotropic, while in samples closest to the sill, anisotropic inertinite can be found. The Raman spectra of inertinite and vitrinite (mosaic texture) are significantly different. For vitrinite, the D and G peaks are closer, and the height of D is lower than for inertinite. The Raman spectra of thermally altered coal include 13 bands after curve fitting. Curved-fitted results show that for vitrinite, polycondensation provides the nucleation of mesophase spheres, and newly formed aromatics take part in the growth of mesophase spheres. However, for inertinite, excessive amorphous carbon and substituents, such as aromatic alkyl and aryl-alkyl ether, form cross-linked structures and hinder the anisotropic development of inertinite.
WOS关键词IGNEOUS INTRUSIONS ; FOURIER-TRANSFORM ; NATURAL COKES ; MAGMATIC INTRUSION ; GRAPHITIZED COALS ; HUAINAN COALFIELD ; JHARIA COALFIELD ; CHAR STRUCTURE ; HEAT-TREATMENT ; CENTRAL HUNAN
资助项目National Natural Science Foundation of China[42072196] ; Institute of Geology and Geophysics, Chinese Academy of Sciences
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000757388000015
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Institute of Geology and Geophysics, Chinese Academy of Sciences ; Institute of Geology and Geophysics, Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/104934]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Wang, Shaoqing
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
2.China Univ Min & Technol Beijing, Coll Geosci & Surveying Engn, Beijing 100083, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Hao,Wang, Shaoqing,Deng, Jinsong,et al. Petrologic Characteristics and Chemical Structures of Macerals in a Suite of Thermally Altered Coals by Confocal Raman[J]. ACS OMEGA,2021,6(49):33409-33418.
APA Chen, Hao,Wang, Shaoqing,Deng, Jinsong,Zhang, Xiaomei,Liu, Yu,&Li, Xiaoguang.(2021).Petrologic Characteristics and Chemical Structures of Macerals in a Suite of Thermally Altered Coals by Confocal Raman.ACS OMEGA,6(49),33409-33418.
MLA Chen, Hao,et al."Petrologic Characteristics and Chemical Structures of Macerals in a Suite of Thermally Altered Coals by Confocal Raman".ACS OMEGA 6.49(2021):33409-33418.

入库方式： OAI收割

来源：地质与地球物理研究所

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