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I碳酸盐煤炭固硫剂效果的研究摘要本次实验以含硫量较高的山东枣庄精煤为原料，以碳酸钙、碳酸钠、碳酸钡为固硫剂，将固硫剂按和煤中硫含量1:1的比例加入原煤在高温管式炉中无氧条件下炼焦，得到相应固硫焦。利用一体化定硫仪对焦炭中全硫含量定量分析，用热重-质谱联用技术，将不加固硫剂在内的四种焦炭分别在不同温度下有氧燃烧，分析烟气的SO2质谱数据，比较加入固硫剂和未加入固硫剂的区别，研究固硫剂的种类和温度对固硫焦燃烧后SO2的释放量的影响。结果发现加入固硫剂CaCO3、Na2CO3、BaCO3后，焦炭中全硫含量分别比不加固硫剂高出4.74%、19.81%和24.98%。在有氧气氛中固硫剂种类不同，控制SO2释放效果不同，BaCO3最好，Na2CO3次之，CaCO3不明显。温度升高，焦炭燃烧SO2的释放大体上增加，而对不同固硫焦又有不同影响。关键词：固硫焦，全硫含量，SO2释放IIReleaseofsulfurinsulphur-fixingcharcombustionathightemperatureAbstractThisexperimentusedhigh-sulfurcoalinShandongZaozhuangasrawmaterial,calciumcarbonate,sodiumcarbonate,bariumcarbonateassulphur-fixingagent.Weaddedsulphur-fixingagentintothecoalaccordingto1:1ratioofthesulfurcontentincoal,thengotthecorrespondingsulphur-fixingcharthroughhightemperaturetubefurnaceunderanaerobicconditions.Integratedfixedsulfuranalyzerwasusedforquantitativeanalysisoftotalsulfurcontentinchar.Fourcharsincludingtheonewithoutsulphur-fixingagentcombustedrespectivelyatdifferenttemperaturesinTGAmassspectrometry.Inordertoexploretheimpactoftemperatureandtypeofsulphur-fixingagentagainstthereleaseofSO2throughthecharcombustion,weanalysedtheSO2massspectraldataandcomparedthedistinctionofthefoursulphur-fixingchars.Theresultsfoundthataftertheadditionofsulphur-fixingagent,totalsulfurcontentincharwashigherthanthatdidn'thavesulphur-fixingagentfor4.74%,19.81%and24.98%.Temperatureincreased,thereleaseofSO2incharcombustionsubstantiallyincreasedwiththetemperature.Differentsulphur-fixingagenthaddifferenteffectsoncapturingsulfur.Keywords:sulphur-fixingchar,totalsulfurcontent,releaseofSO2III目录摘要............................................................................................................................................IAbstract...................................................................................................................................II1.文献综述...........................................................................................................................11.1.我国煤资源利用和硫排放现状............................................................................11.2.煤中硫的含量和形式............................................................................................11.2.1.煤中硫铁矿硫.............................................................................................21.2.2.煤中有机硫.................................................................................................21.2.3.煤中硫酸盐硫.............................................................................................21.2.4.煤中单质硫.................................................................................................21.3.煤的其他常用脱（固）硫方法............................................................................31.3.1.燃烧前物理洗煤.........................................................................................31.3.2.碳酸盐熔融共晶吸收塔固硫.....................................................................31.3.3.石膏法.........................................................................................................31.3.4.氨水法.........................................................................................................41.3.5.海水法.........................................................................................................41.4.固硫焦固硫............................................................................................................41.5.固硫焦燃烧过程硫的转化....................................................................................41.5.1.固硫焦中硫酸盐转化.................................................................................51.5.2.固硫焦中无机硫化物和有机稳定硫化物.................................................51.6.固硫焦的固硫方法................................................................................................51.6.1.加碳酸盐固硫焦反应原理.........................................................................51.6.2.碳酸盐固硫产物的再分解.........................................................................61.6.3.固硫的辅助添加剂.....................................................................................71.7.影响固硫剂固硫效果的因素................................................................................81.7.1.固硫剂加入量和全硫量比值.....................................................................81.7.2.固硫剂的粒度大小.....................................................................................81.7.3.固硫剂的表面活性.....................................................................................81.7.4.高硫煤中微量元素.....................................................................................92.实验部分.........................................................................................................................102.1.实验原料及试剂..................................................................................................102.2.实验仪器..............................................................................................................102.3.煤样制备..............................................................................................................112.4.原煤全水分的测定....................