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首页> 外文会议>International Conference on Waste Management and Technology >Discharge and Disposal of Coal Gasification Methanol Production Residue and Distribution Characteristics of PAHs in It
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Discharge and Disposal of Coal Gasification Methanol Production Residue and Distribution Characteristics of PAHs in It

机译：煤气化甲醇生产残留物的排放和处置甲醇生产残留物

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To determine the quantities and the treatment ways of coal gasification methanol production residues, questionnaire survey and field investigation were carried out in this research. Moreover, the distribution characteristics of PAHs in two typical residues were determined by GC-MS technique, according to USEPA8100 method. The outputs of gasifier slag and boiler ash for were 127,494 t/a and 164,850t/a, respectively, all the boiler ash and 80% of the gasifier slag would be reused for brick-making. Coal tar residue, with the yield of 480 t/a, was always delivered to coke plant for coking, which was a effective measure to save energy and solve the environmental issues caused by the storage of this residue. The results indicated that the concentration of PAHs with 5-6 aromatic rings was 905 mg/kg in coal tar residue, accounting for 9.23% of the total PAHs concentration, its Benzo(a)pyrene concentration was 160 mg/kg, making it a major health hazard. The concentration of PAHs in gasifier slag was 189mg/kg and the PAHs with 2-3 aromatic rings accounted as high as 81.41% of the total PAHs concentration, the PAHs with 5-6 aromatic rings made up only 1.1%. TheΣ BaPeq were 322.9 mg/kg and 0.23 mg/kg for coal tar residue and gasifier slag, respectively.
机译：为了确定煤气化甲醇生产残留物的数量和治疗方式，在本研究中进行了问卷调查和现场调查。此外，根据USPA8100方法，通过GC-MS技术测定两种典型残留物中PAHs的分布特性。气化器炉渣和锅炉灰的输出分别为127,494吨/ A和164,850t / A，所有锅炉灰和80％的气化器炉渣都可以重复使用砖制品。煤焦油残留物，收益率为480吨/吨，总是送到焦炭植物，以节省能源的有效措施，解决该残留物储存引起的环境问题。结果表明，煤焦油残渣中具有5-6个芳环的PAHS浓度为905mg / kg，占PAHS浓度的9.23％，其苯并（a）芘浓度为160 mg / kg，使其成为一个重大健康危害。气化器渣中的PAHS的浓度为189mg / kg，2-3个芳环的PAHs占PAHS浓度的81.41％，PAHS具有5-6个芳香环的PAHS仅占1.1％。甲状甲普克分别为322.9mg / kg和0.23mg / kg用于煤焦油残留物和气化器渣。

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