National Engineering Laboratory for Reducing Emissions from Coal Combustion; School of Energy and Power Engineering, Shandong University, Jinan, Shandong, China.
Shandong Academy of Environmental Science Company Limited, Jinan, Shandong, China.
J Environ Sci Health A Tox Hazard Subst Environ Eng. 2021;56(13):1445-1455. doi: 10.1080/10934529.2021.2013074. Epub 2021 Dec 26.
This study aimed to explore the influence of activated carbon, oily sludge pyrolysis residue, and biochar and their contents on the distribution of three-phase products of oily sludge subjected to microwave pyrolysis. A microwave reaction system, refinery gas analyzer, and chromatography-mass spectrometry were used to carry out the experiment and analyze the results. The results showed that all three additives reduced the yield of solid products and increased the yield of gas products. With an increase in the additive content, the volatile matter and moisture content in the pyrolysis residue greatly reduced. The content of CH and H in the pyrolysis gas increased with an increase in the additive content. When the amount of activated carbon was 20%, the H content reached a maximum (39.7%), and when the amount of biochar was 20%, the CH content reached a maximum (44.5%). All three additives increased the content of small molecules in the pyrolysis oil; when 10% activated carbon was added, the oil recovery rate reached up to 78.5%. The results of this study can guide the industrial application of microwave pyrolysis oily sludge.
本研究旨在探讨活性炭、油泥热解残渣和生物炭及其含量对油泥微波热解三相产物分布的影响。采用微波反应系统、炼厂气分析仪和色谱-质谱联用仪进行实验并分析结果。结果表明，所有三种添加剂均降低了固体产物的产率，增加了气体产物的产率。随着添加剂含量的增加，热解残渣中的挥发分和水分含量大大降低。热解气中 CH 和 H 的含量随添加剂含量的增加而增加。当活性炭的用量为 20%时，H 含量达到最大值（39.7%），当生物炭的用量为 20%时，CH 含量达到最大值（44.5%）。三种添加剂均增加了热解油中小分子的含量；当添加 10%的活性炭时，油收率最高可达 78.5%。本研究结果可为微波热解油泥的工业应用提供指导。
