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Effect of steam and oil sludge ash additive on the products of oil sludge pyrolysis

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  • Cheng, Shuo
  • Wang, Yuhua
  • Fumitake, Takahashi
  • Kouji, Tokimatsu
  • Li, Aimin
  • Kunio, Yoshikawa

Abstract

In this study, a strategy of combining steam injection with oil sludge ash addition to improve the yield and quality of the oil products of oil sludge pyrolysis process is proposed. Oil sludge pyrolysis with the addition of different amounts of steam and oil sludge ash was conducted under inert conditions at 450°C by employing a stirred tank reactor. This procedure was performed to investigate the effect of steam injection and oil sludge ash addition on the distribution and quality of the oil products. The possible catalytic mechanism occurring during the pyrolysis process was proposed. The quality of the oil product was determined based on the results of the boiling point distribution, the carbon residue, the ultimate analysis, the Saturates, Asphaltenes, Resins and Aromatics (SARA) composition and the Nuclear Magnetic Resonance (NMR) analysis. The results indicate that both steam injection and oil sludge ash addition caused the oil yield to increase. Steam injection increased the proportions of the heavy and middle fractions in the oil product and reduced the carbon residue by improving the stability of the oil system. Oil sludge ash addition reduced the carbon residue and lessened the decrease in the light oil/heavy oil ratio by converting the heavy fraction or coke precursors to lighter fractions. The synergetic effect of steam injection and oil sludge ash addition can further reduce the carbon residue of the oil product. The presence of oil sludge ash significantly reduced the S, N, and O mobilities from the oil sludge feedstock to the oil product. These performances can be further improved by the synergetic effect of steam injection and oil sludge ash addition, which might be attributed to the improved catalytic effect of oil sludge ash by steam injection.

Suggested Citation

  • Cheng, Shuo & Wang, Yuhua & Fumitake, Takahashi & Kouji, Tokimatsu & Li, Aimin & Kunio, Yoshikawa, 2017. "Effect of steam and oil sludge ash additive on the products of oil sludge pyrolysis," Applied Energy, Elsevier, vol. 185(P1), pages 146-157.
    • Handle: RePEc:eee:appene:v:185:y:2017:i:p1:p:146-157
    DOI: 10.1016/j.apenergy.2016.10.055
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    References listed on IDEAS

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    1. Zhang, Yuming & Yu, Deping & Li, Wangliang & Gao, Shiqiu & Xu, Guangwen & Zhou, Huaqun & Chen, Jing, 2013. "Fundamental study of cracking gasification process for comprehensive utilization of vacuum residue," Applied Energy, Elsevier, vol. 112(C), pages 1318-1325.
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    1. Uyar, Mahmut & Aydın, Hüseyin, 2022. "Production of low sulfur diesel-like fuel from crude oil wastes by pyrolytic distillation and its usage in a diesel engine," Energy, Elsevier, vol. 244(PA).
    2. Sajadi, Mahdi & Mokhtarani, Nader, 2023. "Catalytic pyrolysis of oil sludge using the nano alumina powder," Energy, Elsevier, vol. 270(C).
    3. 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).
    4. Luo, Juan & Ma, Rui & Huang, Xiaofei & Sun, Shichang & Wang, Hao, 2020. "Bio-fuels generation and the heat conversion mechanisms in different microwave pyrolysis modes of sludge," Applied Energy, Elsevier, vol. 266(C).
    5. Quan, Hongping & Li, Pengfei & Duan, Wenmeng & Chen, Liao & Xing, Langman, 2019. "A series of methods for investigating the effect of a flow improver on the asphaltene and resin of crude oil," Energy, Elsevier, vol. 187(C).
    6. 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.
    7. Liu, Zhongzhe & Hughes, Matthew & Tong, Yiran & Zhou, Jizhi & Kreutter, William & Valtierra, Danny & Singer, Simcha & Zitomer, Daniel & McNamara, Patrick, 2021. "Enhanced energy and resource recovery via synergistic catalytic pyrolysis of byproducts from thermal processing of wastewater solids," Renewable Energy, Elsevier, vol. 177(C), pages 475-481.
    8. Liu, Huidong & Xu, Guoren & Li, Guibai, 2021. "Autocatalytic sludge pyrolysis by biochar derived from pharmaceutical sludge for biogas upgrading," Energy, Elsevier, vol. 229(C).
    9. Sun, Yongqi & Chen, Jingjing & Zhang, Zuotai, 2019. "General roles of sludge ash, CaO and Al2O3 on the sludge pyrolysis toward clean utilizations," Applied Energy, Elsevier, vol. 233, pages 412-423.
    10. 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.
    11. Chen, Xiaoling & Zhang, Yongxing & Xu, Baoshen & Li, Yifan, 2022. "A simple model for estimation of higher heating value of oily sludge," Energy, Elsevier, vol. 239(PA).
    12. Zhang, Xitong & Xu, Jiayu & Ran, Shuai & Gao, Ying & Lyu, Yinong & Pan, Yueshen & Cao, Fei & Lin, Yunhao & Yang, Zixu & Wang, Zhongxian & Guo, Dandan & Wang, Qi & Zhu, Lin & Zhu, Yuezhao, 2022. "Experimental study on catalytic pyrolysis of oily sludge for H2 production under new nickel-ore-based catalysts," Energy, Elsevier, vol. 249(C).

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