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Fast pyrolysis of corn stover using ZnCl2: Effect of washing treatment on the furfural yield and solvent extraction of furfural

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  • Oh, Seung-Jin
  • Choi, Gyung-Goo
  • Kim, Joo-Sik

Abstract

To produce a bio-oil having a high concentration of furfural, corn stover was fast-pyrolyzed using ZnCl2 in a fluidized bed reactor at 330–430 °C. The effects of various parameters such as reaction temperature, water- and acid-washing prior to pyrolysis, and ZnCl2 content on the product and furfural yields were investigated. Moreover, solvent extraction was conducted using toluene at different mass ratios of bio-oil/toluene to recover furfural from the obtained bio-oil. The maximum yield of bio-oil was 59 wt%. The bio-oil mainly comprised acetic acid, α-hydroxyketones, and furfural. The maximum furfural yield was 11.5 wt% when the feed material was water-washed, impregnated with 18.5 wt% ZnCl2, and pyrolyzed. Although acid-washing removed alkali and alkaline earth metals much more efficiently than water-washing, water-washing was better than acid-washing for the furfural production. Toluene extraction was very effective to recover furfural from bio-oil. The maximum recovery rate (82%) was achieved at a bio-oil/toluene ratio of 1:4.

Suggested Citation

  • Oh, Seung-Jin & Choi, Gyung-Goo & Kim, Joo-Sik, 2015. "Fast pyrolysis of corn stover using ZnCl2: Effect of washing treatment on the furfural yield and solvent extraction of furfural," Energy, Elsevier, vol. 88(C), pages 697-702.
    • Handle: RePEc:eee:energy:v:88:y:2015:i:c:p:697-702
    DOI: 10.1016/j.energy.2015.05.101
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    Citations

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    Cited by:

    1. Mooktzeng Lim & Ee Sann Tan, 2023. "Techno-Economic Feasibility Study for Organic and Plastic Waste Pyrolysis Pilot Plant in Malaysia," Sustainability, MDPI, vol. 15(19), pages 1-16, September.
    2. Qiaoqiao Zhou & Jinxing Gu & Jingwei Wang & Anthony Girolamo & Sasha Yang & Lian Zhang, 2023. "High production of furfural by flash pyrolysis of C6 sugars and lignocellulose by Pd-PdO/ZnSO4 catalyst," Nature Communications, Nature, vol. 14(1), pages 1-14, December.
    3. Nzihou, Ange & Stanmore, Brian & Lyczko, Nathalie & Minh, Doan Pham, 2019. "The catalytic effect of inherent and adsorbed metals on the fast/flash pyrolysis of biomass: A review," Energy, Elsevier, vol. 170(C), pages 326-337.
    4. Huang, Y.W. & Chen, M.Q. & Li, Y. & Guo, J., 2016. "Modeling of chemical exergy of agricultural biomass using improved general regression neural network," Energy, Elsevier, vol. 114(C), pages 1164-1175.
    5. Xing, Shiyou & Yuan, Haoran & Huhetaoli, & Qi, Yujie & Lv, Pengmei & Yuan, Zhenhong & Chen, Yong, 2016. "Characterization of the decomposition behaviors of catalytic pyrolysis of wood using copper and potassium over thermogravimetric and Py-GC/MS analysis," Energy, Elsevier, vol. 114(C), pages 634-646.
    6. Oh, Seung-Jin & Choi, Gyung-Goo & Kim, Joo-Sik, 2016. "Characteristics of bio-oil from the pyrolysis of palm kernel shell in a newly developed two-stage pyrolyzer," Energy, Elsevier, vol. 113(C), pages 108-115.
    7. Zhou, Qiaoqiao & Liu, Zhenyu & Wu, Ta Yeong & Zhang, Lian, 2023. "Furfural from pyrolysis of agroforestry waste: Critical factors for utilisation of C5 and C6 sugars," Renewable and Sustainable Energy Reviews, Elsevier, vol. 176(C).

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