污泥低温热解产物油成分的气相色谱-质谱分析

The oil composition produced by low temperature pyrolysis from sewage sludge was analyzed by gas chromatography-mass spectrometry (GC/MS). The oil had aliphatic hydrocarbon and cyclic hydrocarbon, aromatic compounds, ranging from benzene derivatives to polycyclic aromatic hydrocarbons(PAHs),nitrogenated compounds. An important constituent of the pyrolysis oil from an environmental view is the PAHs which will give rise to a toxic oil. The proportion of PAHs is the highest and the bicyclic compounds such as naphthalene are present in a higher proportion than other PAHs.