TG鄄MS与Py鄄GC相结合法研究惰性气氛下含硫模型化合物热解过程中硫的脱除及释放行为研究.pdf

第42卷 第10期 燃摇 料摇 化摇 学摇 学摇 报 Vol.42 No.10 2014年10月 Journal of Fuel Chemistry and Technology Oct. 2014 文章编号:0253鄄2409(2014)10鄄1160鄄07 Sulfur removal and release behaviors of sulfur鄄containing model compounds during pyrolysis under inert atmosphere by TG鄄MS connected with Py鄄GC 1,2 1 1 1 3 1 GUO Hui鄄qing ,XIE Li鄄li ,WANG Xin鄄long ,LIU Fen鄄rong ,WANG Mei鄄jun ,HU Rui鄄sheng (1. College of Chemistry and Chemical Engineering,InnerMongolia University,Hohhot摇 010021,China; 2. School of Pharmaceutical Science,InnerMongoliaMedical University,Hohhot摇 010110,China; 3. Key Laboratory of Coal Science and Technology,Taiyuan University of Technology,Taiyuan摇 030024,China) Abstract: Sulfur containing model compounds, tetradecyl mercaptan, dibutyl sulfide, phenyl sulfide, 2鄄methyl thiophene, benzothiophene and dibenzothiophene,were selectedtoinvestigate their sulfur removal andreleasebehaviorsduringpyrolysisunder inert atmosphere by thermo鄄gravimetric analyzer with mass spectrometer (TG鄄MS)andpyrolysisconnected with gaschromatogram (Py鄄GC). It wasfound that the order of sulfur removal was tetradecyl mercaptan dibutyl sulfide 2鄄methyl thiophene benzo thiophene phenyl sulfide dibenzothiophene. Exceptforphenylsulfide,thisruleiscontrarytothedecompositiontemperatureorder of the sulfur functional groups. SO evolution was detectedby MSand GC for all those model compounds and COS evolution was 2 also found except forphenylsulfideanddibenzothiophene;whileH Sevolutionwasmeasuredonlyfor tetradecylmercaptan,dibutyl2 sulfide and 2