Investigation on the Nitrogen Functionality of Volatile Through FTIR Spectroscopy Equipped with a Long Path Distance Gas Cell
GUO Xing-ming1, HUI Shi-en2, HAO Ji-ming1
1. Department of Environment Science and Engineering, Tsinghua University, Beijing 100084, China 2. Department of Thermal Engineering, Xi'an Jiaotong University, Xi'an 710049, China
Abstract：Nitrogen functionalities of volatile of three different rank coals, namely TONGCHUAN lean coal, SHENMO bituminite and YIBIN anthracite, were studied by using Fourier transform infrared spectroscopy (FTIR) equipped with 16 m long path distance gas cell. The detection problem of low content of nitrogen in volatile was successfully solved because of the application of the long path distance gas cell. In the long path distance gas cell, the infrared penetrates the sample more times than in a normal gas cell. Results from the analysis of spectra obtained by FTIR show that there are four functionalities of nitrogen in volatile, including pyrrole-type nitrogen, pyrindine-type nitrogen, pyridine-N-oxide nitrogen, and nitrile nitrogen. Comparison of research results of nitrogen group between coal and volatile suggests that the difference in fate of nitrogen between volatile and coal results from the macromolecular nitrogen group of coal decomposition under the effect of temperature.
Key words：Fourier transform infrared spectroscopy (FTIR);Volatile;Functionality;Nitrogen;Long path distance gas cell
郭兴明1，惠世恩2，郝吉明1 . 利用配置长程气池的FTIR技术研究挥发份中氮赋存形态[J]. 光谱学与光谱分析, 2005, 25(09): 1393-1396.
GUO Xing-ming1, HUI Shi-en2, HAO Ji-ming1 . Investigation on the Nitrogen Functionality of Volatile Through FTIR Spectroscopy Equipped with a Long Path Distance Gas Cell . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(09): 1393-1396.
[1] Smoot L D, Boardman R D, Brewster B S, et al. Energy and Fuels, 1993, 7: 786. [2] Wendt J O L. Prog. Energy Combust. Sci., 1980, 6: 201. [3] XU Xu-chang(徐旭常). Coal Conversion(煤炭转化), 1994, 17(3): 65. [4] Smoot L D, Hill S C, Xu H. Prog. Energy Combust. Sci., 1998, 24: 385. [5] Friebel J, Kpsel R F W. Fuel, 1999, 78: 923. [6] Schmiers H, Friebel J, Streubel P, et al. Carbon, 1999, 37: 1965. [7] Kambara S, Takarada T, Toyoshima M, et al. Fuel, 1995, 74: 1247. [8] Gong B, Buckley N, Lamb R N, et al. Surface and Interface Analysis, 1999, 28: 126. [9] LIU Yan-hua, CHE De-fu, LI Yin-tang, et al(刘艳华，车得福，李荫堂，等). Journal of Xi'an Jiaotong University(西安交通大学学报), 2001, 35(7): 10. [10] Gong B, Pigram P J, Lamb R N. Intermational Journal of Coal Geology, 1997, 34: 53. [11] SUN Su-qin, LEUNG Hei-wun, YEUNG Hin-wing(孙素琴，梁曦云，杨显荣). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2002, 22(2): 226. [12] ZHANG Xue-qin, LI Yang, HUANG Ling, PAN Yuan-jiang (张雪芹，李 扬，黄 铃，潘远江). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，2002, 22(4): 229. [13] XU Jin-yuan，XU Tong-mo(许晋源，徐通模). Combustion(燃烧学). Beijing：Mechanical Industry Press(北京：机械工业出版社)，1990. 167. [14] YANG Jin-he(杨金和). The Handbook of Coal Assay(煤炭化验手册). Beijing: China Coal Industry Publishing House(北京：煤炭工业出版社), 1998.259. [15] XIE Jing-xi, et al(谢晶曦，等). Application of Infrared Spectroscopy in Organic Chemistry and Medicinal Chemistry(红外光谱在有机化学和药物化学中的应用). Beijing: Science Press(北京：科学出版社), 1987：79.
