温度对污水污泥流化床热解油成分影响的GC_MS分析

采用气相色谱/质谱联用技术,对污水污泥在流化床中不同热解温度下热解获得的热解油进行了分析.通过气相色谱/质谱联用技术分析,在污泥热解油中检测出100多种成分,采用峰面积法对各种成分进行定量分析,对热解油中的29种峰面积百分比大于1%的成分进行了定性分析.热解油中含有苯及其化合物、烯烃、羧酸、多环芳烃(PAHs)、含氮化合物、含氯化合物和酯类,400 ℃时热解油中酯类的含量占绝对优势,而在600 ℃时,烯烃的含量最多,各种组分的分布较400 ℃时均匀.

GC-MS Analysis of the Influence of Temperature on Pyrolyzed Oil Constituents in a Sewage Water and Sludge Fluidized Bed

By adopting a gas-phase chromatogram/mass spectrum joint usage technology,analyzed was the pyrolyzed oil obtained from sewage water and sludge through a pyrolysis in a fluidized bed at different temperatures.Through an analysis by using the above-mentioned technology,more than 100 constituents were identified in the oil from sludge pyrolysis.By employing a peak area method,quantitatively analyzed were various constituents and qualitatively analyzed were 29 constituents with a peak area ratio being greater than 1% in the pyrolyzed oil.Benzene and its compounds,alkene,carboxylic acid,polycyclic aromatic hydrocarbons(PAHs),nitrogen-contained compounds,chlorides and esters are found in the pyrolyzed oil.At 400 ℃,esters predominate in the pyrolyzed oil.At 600 ℃,the alkene content attains its maximum value and the distribution of various constituents becomes more uniform than at 400 ℃.