型煤中硫的还原热解MS和GC/MS分析

以煤和生物质为主要原料的商用型煤为研究对象，采用还原热解（AP-TPR）在线质谱（MS）联用，以及离线色谱/质谱（GC/MS）分析法，定性和定量研究了家用型煤释放的含硫化合物。不同组成的型煤表现出各自不同的硫释放特性。对于生物型煤来说，仅检测到少量二烷基硫醚和脂肪硫醇的存在。褐煤型煤检测到种类最多的有机硫化物。在高阶煤制成的型煤中没有检测到氧化态的硫化物，其典型特征是存在一些噻吩类硫化物。

Sulphur analysis of household briquettes using MS and GC/MS detection systems after reductive pyrolysis

The aim of the present study is to obtain more information concerning organic sulphur pollutants produced by some commercial briquettes based on coal and biomass.Reductive pyrolysis technique(APTPR),coupled "on-line" with mass spectrometer(MS) and "off-line" with GC/MS was used for qualitative and quantitative study of sulphur compounds emitted from household briquettes.By AP-TPR-GC/MS and inner standard application,prominent sulphur containing compounds were quantitatively determined.For different briquettes some peculiarities were observed.Namely,only for biobriquette low presence of dialkyl sulphides and aliphatic thiols was registered.The highest variety of organic sulphur forms was detected for lignite briquette.Oxidized sulphur compounds were not registered for the higher coal rank briquettes but the presence of different thiophenes was typical for them.