The Spectrum Studies of Structure Characteristics in Magma Contact Metamorphic Coal
WU Dun, SUN Ruo-yu, LIU Gui-jian*, YUAN Zi-jiao
Key Laboratory of Crust-Mantle Material and Environments, Chinese Academy of Sciences, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China
Abstract:The structural parameters evolution of coal due to the influence of intrusions of hot magma was investigated and analyzed. X-ray diffraction and laser confocal microscope Raman spectroscopy were used to test and analyze 4 coal samples undergoing varying contact-metamorphism by igneous magmas in borehole No.13-4 of Zhuji coal mine, Huainan coalfield. The result showed that coal XRD spectrum showed higher background intensity, with the 26° and 42° nearby apparent graphite diffraction peak. Two significant vibration peaks of coal Raman spectra were observed in the 1 000~2 000 cm-1 frequency range: broad “D” peak at 1 328~1 369 cm-1 and sharp “G” peak at 1 564~1 599 cm-1. With the influence of magma intrusion, the relationship between coal structural parameters and coal ranks was excellent.
吴 盾,孙若愚,刘桂建*,袁自娇 . 岩浆接触变质煤结构特征的谱学研究 [J]. 光谱学与光谱分析, 2013, 33(10): 2861-2864.
WU Dun, SUN Ruo-yu, LIU Gui-jian*, YUAN Zi-jiao. The Spectrum Studies of Structure Characteristics in Magma Contact Metamorphic Coal. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(10): 2861-2864.
[1] Lu L, Sahajwalla V, Kong C, et al. Carbon, 2001, 39: 1821. [2] Eric Q, Jean-Noel R, Lydie B, et al. Spectrochim. Acta, Part A, 2005, 61: 2368. [3] Saikia B, Boruah R, Gogi P. Journal of Chemical Sciences, 2009, 121: 103. [4] Cancado L G, Takai K, Enoki T, et al. Carbon, 2008, 46: 272. [5] Sadezky A, Muckenhuber H, Grothe H, et al. Carbon, 2005, 42: 1731. [6] Pimentel M F, Honorato F A, Stragevitch L, et al. Fuel, 2008, 87:3706. [7] Eiman M Al-Muhareb, Fatma Karaca, Trevor J Morgan, et al. Energy & Fuels, 2006, 20: 1165. [8] Mukherjee S, Srivastava S K. Energy Fuels, 2006, 20: 1089. [9] Oluwadayo O, Sonibare, Tobias H, et al. Energy, 2010, 35: 5347. [10] Irena K, Laura T, Elena C, et al. Spectrochim. Acta, Part A, 2012, 91: 67.