Organic sulfur compositions and distributions of tars from the pyrolysis of solvent pretreatment vitrinite of high sulfur coal
作者： Qiuxiang Yao , Ming Sun , Junwen Gao , Rucheng Wang , Yujuan Zhang
DOI: 10.1016/J.JAAP.2019.03.002
关键词:
摘要: Abstract The low temperature solvent pretreated experiments of vitrinite sorted out from Permo-carboniferous high organic sulfur fine coal were performed to research the effects pretreatment on characteristics pyrolysis products and composition distribution in produced tar. Six solvents containing hot water, ethanol solution, 1, 2-propanediol KOH KOH-ethanol solution KOH-1, employed. results show that method has little influence content coal, but it increase tar yield a great variation volatiles during coals. types thiophenes, benzothiophene, dibenzothiophene, naphthothiophene, benzo[b]naphthothiophene, dinaphthothiophene phenanthro[9,10-b]thiophene, detected tars. pretreatments alkaline ring opening large aromatic structures coal. generation phenanthro[9,10-b]thiophene may be due effect.
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