کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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685720 | 889048 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Characterization of bio-oil from induction-heating pyrolysis of food-processing sewage sludges using chromatographic analysis Characterization of bio-oil from induction-heating pyrolysis of food-processing sewage sludges using chromatographic analysis](/preview/png/685720.png)
In this study, gas chromatography–mass spectrometry (GC–MS) was used to analyze the pyrolytic bio-oils and gas fractions derived from the pyrolysis of industrial sewage sludges using induction-heating technique. The liquid products were obtained from the cryogenic condensation of the devolatilization fraction in a nitrogen atmosphere using a heating rate of 300 °C/min ranging from 25 to 500 °C. The analytical results showed that the pyrolysis bio-oils were very complex mixtures of organic compounds and contained a lot of nitrogenated and/or oxygenated compounds such as aliphatic hydrocarbons, phenols, pyridines, pyrroles, amines, ketones, and so on. These organic hydrocarbons containing nitrogen and/or oxygen should originate from the protein and nucleic acid textures of the microbial organisms present in the sewage sludge. The non-condensable devolatilization fractions were also composed of nitrogenated and oxygenated compounds, but contained small fractions of phenols, 1H-indoles, and fatty carboxylic acids. On the other hand, the compositions in the non-condensable gas products were principally carbon dioxide, carbon monoxide and methane analyzed by gas chromatography–thermal conductivity detector (GC–TCD).
Journal: Bioresource Technology - Volume 100, Issue 9, May 2009, Pages 2650–2654