煤中含硫基团FTIR表征的可行性分析
Feasibility study on the FTIR characterization of sulfur-containing Groups in coal
为了探究傅里叶变换红外（FTIR）光谱在煤系含硫基团表征中的可行性，本文先对含硫模型化合物及类似结构化合物的FTIR谱图进行了比较，得到含硫基团的红外吸收频率，然后将低硫煤与含硫模型化合物混合，以模拟高硫煤，并对混合物进行FTIR分析。对傅里叶红外光谱比较分析的结果表明：硫醇中—S—H的红外吸收频率在2560 cm-1；C—S结构的吸收频率在689 cm-1，易受临近结构的影响；二硫键结构S—S的吸收频率在466 cm-1；硫砜结构O═S═O的吸收频率在1310~1121 cm-1；亚砜O═S结构的吸收频率为1060~1030 cm-1。对模拟高硫煤的FTIR分析发现，即使硫分高达8%，煤中有机硫基团的红外吸收仍然很微弱，因此煤中含硫基团无法采用傅里叶变换红外光谱进行有效分析。
o explore the validity of FTIR analysis involved in characterization of sulfur-containing groups in coal, comparable study was carried out to the FTIR spectra of model chemicals at first. After the infrared frequencies of sulfur-containing groups were comprehended, the substitutes of high-sulfur coal, which made from sulfur-containing compounds and low-sulfur coal, were subjected to FTIR study. Based on the comparison of the FTIR spectra, the infrared frequencies of —S—H, C—S, S—S, O═S═O and O═S are located in 2560 cm-1, 689 cm-1, 466 cm-1, 1310~1121 cm-1 and 1060~1030 cm-1, respectively. Additionally, the FTIR study on the simulation of high-sulfur coal shows that the signal attributed to organic sulfur-containing groups in high-sulfur coal appears too weak to be recorded. Alternatively, the sulfur-containing groups in coal cannot be characterized effectively via FTIR spectroscopy.
罗来芹、杨彦成、许宁、陶秀祥
煤化学、煤的加工利用燃料化学工业有机化学工业
高硫煤含硫基团XPSFTIR频率可行性
high-sulfur coalsulfur-containing functionalitiesXPSFTIRfrequencyfeasibility
罗来芹,杨彦成,许宁,陶秀祥.煤中含硫基团FTIR表征的可行性分析[EB/OL].(2016-01-12)[2025-08-10].http://www.paper.edu.cn/releasepaper/content/201601-258.点此复制
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