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Energy and Resource Utilization of Refining Industry Oil Sludge by Microwave Treatment

Author

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  • Chien Li Lee

    (Research and Development Center for Water Resource and Conservation, National Kaohsiung University of Science and Technology, No 1, University Rd., Yanchao Dist., Kaohsiung City 824, Taiwan)

  • Cheng-Hsien Tsai

    (Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, No 1, University Rd., Yanchao Dist., Kaohsiung City 824, Taiwan)

  • Chih-Ju G. Jou

    (Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, No 1, University Rd., Yanchao Dist., Kaohsiung City 824, Taiwan)

Abstract

The oily sludge from crude oil contains hazardous BTEX (benzene, toluene, ethylbenzene, xylene) found in the bottom sediment of the crude oil tank in the petroleum refining plant. This study uses microwave treatment of the oily sludge to remove BTEX by utilizing the heat energy generated by the microwave. The results show that when the oily sludge sample was treated for 60 s under microwave power from 200 to 300 W, the electric field energy absorbed by the sample increased from 0.17 to 0.31 V/m and the temperature at the center of the sludge sample increased from 66.5 °C to 96.5 °C. In addition, when the oily sludge was treated for 900 s under microwave power 300 W, the removal rates were 98.5% for benzene, 62.8% for toluene, 51.6% for ethylbenzene, and 29.9% for xylene. Meanwhile, the highest recovery rates of light volatile hydrocarbons in sludge reached 71.9% for C 3 , 71.3% for C 4 , 71.0% for C 5 , and 78.2% for C 6 .

Suggested Citation

  • Chien Li Lee & Cheng-Hsien Tsai & Chih-Ju G. Jou, 2020. "Energy and Resource Utilization of Refining Industry Oil Sludge by Microwave Treatment," Sustainability, MDPI, vol. 12(17), pages 1-9, August.
    • Handle: RePEc:gam:jsusta:v:12:y:2020:i:17:p:6862-:d:403377
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    References listed on IDEAS

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    1. Cheng, Shuo & Zhang, Hongtao & Chang, Fengmin & Zhang, Feng & Wang, Kaijun & Qin, Ya & Huang, Tixiao, 2019. "Combustion behavior and thermochemical treatment scheme analysis of oil sludges and oil sludge semicokes," Energy, Elsevier, vol. 167(C), pages 575-587.
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    Cited by:

    1. Hakimian, Hanie & Pyo, Sumin & Kim, Young-Min & Jae, Jungho & Show, Pau Loke & Rhee, Gwang Hoon & Chen, Wei-Hsin & Park, Young-Kwon, 2022. "Increased aromatics production by co-feeding waste oil sludge to the catalytic pyrolysis of cellulose," Energy, Elsevier, vol. 239(PD).
    2. Hongyuan Qi & Huayi Jiang & Yanzhen You & Juan Hu & Yulong Wang & Zhe Wu & Hongxin Qi, 2022. "Mechanism of Magnetic Nanoparticle Enhanced Microwave Pyrolysis for Oily Sludge," Energies, MDPI, vol. 15(4), pages 1-22, February.
    3. Hongyan Mu & Min Zhang & Shanshan Sun & Zhaozheng Song & Yijing Luo & Zhongzhi Zhang & Qingzhe Jiang, 2021. "Pilot-Scale Airlift Bioreactor with Function-Enhanced Microbes for the Reduction of Refinery Excess Sludge," IJERPH, MDPI, vol. 18(13), pages 1-12, June.

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