CAJ | 학술논문

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。
위료탐구부리협변환홍외（FTIR）광보재매계함류기단표정중적가행성，본문선대함류모형화합물급유사결구화합물적FTIR 보도진행료비교，득도함류기단적홍외흡수빈솔，연후장저류매여함류모형화합물혼합，이모의고류매，병대혼합물진행FTIR 분석。대부리협홍외광보비교분석적결과표명：류순중—S—H 적홍외흡수빈솔재2560 cm－1；C—S 결구적흡수빈솔재689 cm－1，역수림근결구적영향；이류건결구 S—S 적흡수빈솔재466 cm－1；류풍결구 O-S-O 적흡수빈솔재1310～1121 cm－1；아풍 O-S 결구적흡수빈솔위1060～1030 cm－1。대모의고류매적 FTIR 분석발현，즉사류분고체8％，매중유궤류기단적홍외흡수잉연흔미약，인차매중함류기단무법채용부리협변환홍외광보진행유효분석。
To 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 2 560 cm-1 ,689 cm-1 ,466 cm-1 ,1 310~1 121 cm-1 and 1 060~1 030 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 charac-terized effectively via FTIR spectroscopy.