Development and Progress of Spectral Analysis in Coal Structure Research
LI Xue-ping1, 2, 3, ZENG Qiang1, 2, 3*
1. College of Resource and Environmental Sciences, Xinjiang University, Urumqi 830046, China
2. Institute of Arid Ecology and Environment, Xinjiang University, Urumqi 830046, China
3. Key Laboratory of Oasis Ecology, Ministry of Education, Xinjiang University, Urumqi 830046, China
Abstract：Coal structure is the microscopic foundation of various coal-related research, and spectral analysis is widely used as an important method of coal structure research. Its progress in coal structure research is significant to the popularization, application and development of spectral analysis methods. The study of coal structure using spectroscopic analysis methods has become a routine method used in the coal chemical industry. Spectral analysis methods can quickly and non-destructively detect the molecular structure of coal and provide effective detection methods for changes in coal physical and chemical properties under different environmental conditions. This article introduces spectroscopic analysis methods from three aspects of coal quality, macromolecular structure, and elements in coal. It mainly reviews FTIR, Raman spectroscopy, and NMR. Its development history in the study of coal structure, the key research results obtained from its application and its significance. Synthesizing the various spectroscopic analysis methods and application status in coal structure research at home and abroad, it is found that the current research has not completely solved the problem of coal structure characteristics and property changes, lacks a summary of the common characteristics of coal structure spectral characteristics, and failed to form functional groups in coal. Unlike the database of different spectral information of elements, there is a problem that the characteristic spectral peaks and coal structure information are not equal. That is, there are characteristic peaks at a certain wavelength but cannot match the functional groups in coal, or the functional groups of coal are caused by element composition, bond energy, etc. to multiple wavelengths. Respond to the question. At this stage, the research on the structure of raw coal in its natural state is no longer sufficient to meet the problems caused by coal application. A single spectrum analysis method cannot fully analyze the coal structure characteristics, and there are few studies on the factors affecting the change of the coal structure spectrum characteristics, especially coal samples. In the future, the study of spectroscopic analysis in coal structure can start from the following aspects: the combination of spectroscopy and other methods to comprehensively describe the structure of coal, such as chemical methods, HRTEM, STM, MS and other methods are combined to analyze coal structure characteristics qualitatively and quantitatively; coal structure and spectral characteristics under various conditions. At this stage, spectral analysis methods should be used to study coal’s structural characteristics and property changes under various conditions. Solve the problems of coal in practical application. Such as oxidation, hydrogenation, pyrolysis, combustion, low temperature, liquefaction, vaporization and other treatments of coal, the analysis of process changes and product characteristics. It helps to speculate on the structure of the maternal coal, understand the nature of the coal, control the produt of coal physical chemical process, and obtain fine chemicals of coal. In addition establish a coal spectroscopy analysis feature information database, and a visual data query platforms in the background of network big data. Implementing multi-condition simulation assumptions, demonstration and exploring coal structure dynamic changes under different conditions. By uses artificial intelligence and cloud computation to realize the processing and analysis of various spectral data of coal. Enhance the mining of spectral data information to improve the validity and applicability.
Key words：Spectral analysis; Coal structure; Coal quality analysis; Element analysis
李雪萍，曾 强. 光谱分析在煤结构研究中的进展[J]. 光谱学与光谱分析, 2022, 42(02): 350-357.
LI Xue-ping, ZENG Qiang. Development and Progress of Spectral Analysis in Coal Structure Research. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2022, 42(02): 350-357.
[1] ZENG Qiang, LI Gen-sheng, DONG Jing-xuan, et al(曾 强, 李根生, 董敬宣, 等). Mining Safety & Environmental Protection(矿业安全与环保), 2017, 44(1): 106.
[2] Wang Yingchun, Xue Yongbing, Wang Xiaoxiao. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2017, 39(16): 1.
[3] Li Kejiang, Khanna Rita, Zhang Jianliang, et al. Energy & Fuels, 2015, 29: 7178.
[4] WANG Xin, ZHAO Duan, HU Ke-xiang, et al(王 昕, 赵 端, 胡克想, 等). Journal of China Coal Society(煤炭学报), 2018, 43(4): 1146.
[5] YANG Yan-cheng, TAO Xiu-xiang, XU Ning, et al(杨彦成, 陶秀祥, 许 宁, 等). Coal Technology(煤炭技术), 2015, 34(9): 308.
[6] CHEN Li-shi, WANG Lan-lan, PAN Tie-ying, et al(陈丽诗, 王岚岚, 潘铁英, 等). Journal of Fuel Chemistry and Technology(燃料化学学报), 2017, 45(10): 1153.
[7] YANG Liu, DONG Xue-ying, MENG Dong-yang(杨 柳, 董雪莹, 孟东阳). China Mining Magazine(中国矿业), 2014, 23(14): 293.
[8] Painter P C, Snyder R W, Starsinic M, et al. Applied Spectroscopy, 1981, 35: 475.
[9] Solomon P R, Garangelo R M. Fuel, 1982, 61: 663.
[10] Bassilakis R, Carangelo R M, Wójtowicz M A. Fuel, 2001, 80(12): 1765.
[11] Fredericks P M. Coal Science and Technology, 1987, 41(2): 327.
[12] Ibarra J V, Munoz E, Moliner R. Organic Geochemistry, 1996, 24(6): 725.
[13] Geng W, Nakajima T, Takanashi H, et al. Fuel, 2009, 88(1): 139.
[14] Chen Yanyan, Mastalerz M, Schimmelmann A. International Journal of Coal Geology, 2012, 104：22.
[15] Sobkowiak M, Painter P A. Energy and Fuels，1995, 9：359.
[16] Glover G, Walt T J, Glasser D, et al. Fuel, 1995, 74：1216.
[17] Thomasson J, Coin C, Kahraman H, et al. Fuel, 2000, 79：685.
[18] Wu D, Liu G, Sun R, et al. Energy Fuels, 2013, 27(58): 23.
[19] Song H, Liu G, Zhang J, et al. Fuel Process Technol., 2017, 156：454.
[20] Orrego-Ruiz J A, Cabanzo R, Mejía-Ospino E. International Journal of Coal Geology, 2011，85(3-4): 307.
[21] Behera D, Nandi B K, Bhattacharya S. International Journal of Coal Preparation and Utilization, 2020，(2015)：1.
[22] Zhu Hongqing, Zhao Hongru, Wei Hongyi, et al. Combustion and Flame, 2020, 216：354.
[23] Jing Zhenhua, Rodrigues S, Strounina E, et al. International Journal of Coal Geology, 2018，201：1.
[24] Green P D, Johnson C A, Thomas K M. Fuel, 1983, 62：1013.
[25] Tuinstra F, Koenig J L, Chem J. Phys.，1970, 53：1129.
[26] Friedel R A, Carlson G L. Fuel, 1971, 51：194.
[27] Johnson C A, Patrick J W, Thomas K M. Fuel, 1986, 65：1284.
[28] Johnson C A, Thomas K M. Fuel, 1987, 66：17.
[29] Kister J, Dou H. Fuel Process Technology, 1986, 12：19.
[30] Quirico E, Rouzaud J N, Bonal L, et al. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2005, 61(10): 2368.
[31] Ferrari A C, Robertson J. Physical Review B, 2000, 61(20): 14095.
[32] Nestler K, Dietrich D, Witke K, et al. Journal of Molecular Structure, 2003, 661-662：357.
[33] Marques M, Suarez-Ruiz I, Flores D, et al. International Journal of Coal Geology, 2009, 77：377.
[34] Hinrichs R, Brown M T, Vasconcellos M A Z, et al. International Journal of Coal Geology, 2014, 136：52.
[35] Potgieter-Vermaak S, Maledi N, Wagner N, et al. Journal of Raman spectroscopy, 2009, 42(2): 123.
[36] Xiang Jun, Liu Jiawei, Xu Jun, et al. Proceedings of the Combustion Institute, 2019, 37: 3053.
[37] Machovič V, Havelcová M, Sykorová I, et al. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2020, 246: 1.
[38] Hu Jianzhi, Solum M S, Taylor C M V, et al. Energy & Fuels, 2001, 15(1)：14.
[39] Michael A W, Ronald J P. Trends in Analytical Chemistry, 1984, 3(6): 144.
[40] Solum M S, Sarofim A F, Pugmire R J, et al. Energy & Fuels, 2001, 15(4): 961.
[41] Stacey M A, Kanmi M, Gordon J K, et al. Energy & Fuels, 2012, 26(7): 4405.
[42] Zhang R C, Mroue K H, Ramamoorthy A. Journal of Magnetic Resonance, 2016, 266：59.
[43] Francioso O, Ciavatta C, Montecchio D, et al. Bioresource Technology, 2003, 88(3): 189.
[44] Xiong Jincheng, Maciel G E. Energy & Fuels, 2002, 16(3): 791.
[45] Suggate R P, Dickinson W W. International Journal of Coal Geology, 2004, 57(1): 1.
[46] Liu Jiaxun, Luo Lei, Ma Junfang, et al. Energy & Fuels, 2016, 30(8): 6321.
[47] Zhao Yixin, Sun Yingfeng, Liu Shimin, et al. Fuel, 2017, 190: 359.
[48] Okushita K, Hata Y, Sugimoto Y, et al. Energy & Fuels, 2019, 33(10): 1.
