煤化程度对煤样热解焦油组成特性的影响  

Effect of coalification degree on tar composition characteristics of coal sample pyrolysis

作　　者：张志刚[1] ZHANG Zhi-gang(Shandong Energy Zibo Mining Group Co., Ltd., Zibo 255000, Chin)

机构地区：[1]山东能源淄博矿业集团有限责任公司,山东淄博255000

出　　处：《煤炭工程》2018年第7期129-132,共4页Coal Engineering

摘　　要：为研究煤化程度对煤样热解焦油组成特性的影响,采用热分析装置对不同变质程度煤样进行热解实验。在此基础上,采用气相色谱质谱联用分析仪(GC-MS),研究了煤样热解焦油的组成特性。结果表明:随着煤样煤化程度增大,焦油中重质组分含量(沸点>360℃)逐渐降低,而烟煤S热解焦油中轻油(<170℃)、酚油和萘油(170~230℃)、洗油(230~300℃)含量略高于褐煤NM和烟煤XJ、HL。四种煤样热解焦油中含有2个和3个苯环结构的芳香化合物含量较含有1个苯环的芳香化合物含量低,且随着煤样中碳含量而逐渐增大。In order to investigate the effect of coalification degree on tar composition characteristics of coal sample pyrolysis, pyrolysis experiments of coal samples were carried out with a thermal analysis device. On this basis, the composition characteristics of pyrolysis tar were studied by gas chromatography-mass spectrometry （GC-MS）. Research results show that the heavy component content in tar （ boiling point 〉360℃ ） gradually decreases with the increase of coal rank, while the light oil （ 〈 170℃ ）, phenol oil and naphthalene oil （ 170- 230℃） and wash oil （ 230 - 300% ） in tar produced by bituminous coal S is slightly higher than that of lignite NM and bituminous coal XJ and HL. The content of aromatic compounds in pyrolysis tar containing 2 and 3 benzene ring structures is lower than that of aromatic compounds containing 1 benzene ring, and gradually increases with the carbon content in coal samples.

关 键 词：煤化程度 烟煤 褐煤 热解 焦油组成 

分 类 号：TQ530.2[化学工程—煤化学工程]