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Water washing for upgrading fuel properties of greenhouse crop residue from pepper

Author

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  • Iáñez-Rodríguez, Irene
  • Martín-Lara, María Ángeles
  • Pérez, Antonio
  • Blázquez, Gabriel
  • Calero, Mónica

Abstract

This work investigated the washing pre-treatment in order to upgrade a low grade biomass (greenhouse crop residue). Characteristics of biomass and biomass ashes before and after water washing were studied and compared. Characterization was carried out using techniques such as elemental analysis, proximate analysis, Inductively Coupled Plasma Optic Emission Spectroscopy (ICP-OES), Fourier Transform Infrared Spectroscopy (FT-IR), Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC).The main aim of washing was to decrease the quantity of ashes present in this kind of biomass since inorganics cause operational problems in thermal processes. Water washing process at 80 °C was selected as the best temperature since the higher calorific value (HCV) increased a 7.00%. Moreover, a percentage of 46.16% of ash elimination was achieved at that temperature. Additionally, the quantity of problematic inorganic elements such as Cl, Na, Al, Fe and Si was lowered. Moreover, the ash melting temperature shifted to higher temperatures (1200 °C) after the washing. After carrying out the treatment, HCV was enhanced up to 18.07 MJ/kg and the characteristics for the use of the material as a fuel were improved.

Suggested Citation

  • Iáñez-Rodríguez, Irene & Martín-Lara, María Ángeles & Pérez, Antonio & Blázquez, Gabriel & Calero, Mónica, 2020. "Water washing for upgrading fuel properties of greenhouse crop residue from pepper," Renewable Energy, Elsevier, vol. 145(C), pages 2121-2129.
    • Handle: RePEc:eee:renene:v:145:y:2020:i:c:p:2121-2129
    DOI: 10.1016/j.renene.2019.07.143
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    Citations

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    Cited by:

    1. Bandara, Yasas Wishvajith & Gamage, Pringa & Gunarathne, Duleeka Sandamali, 2020. "Hot water washing of rice husk for ash removal: The effect of washing temperature, washing time and particle size," Renewable Energy, Elsevier, vol. 153(C), pages 646-652.
    2. Li, Xiaomin & Chen, Xi & Zhang, Chuxuan & Peng, Zhengkang & Gong, Xun, 2024. "PM10 emissions from co-combustion of water washed sea rice waste with coal," Applied Energy, Elsevier, vol. 356(C).
    3. Jiang, Jiahao & Tie, Yuan & Deng, Lei & Che, Defu, 2022. "Influence of water-washing pretreatment on ash fusibility of biomass," Renewable Energy, Elsevier, vol. 200(C), pages 125-135.
    4. Gao, Qi & Ni, Liangmeng & He, Yuyu & Hou, Yanmei & Hu, Wanhe & Liu, Zhijia, 2022. "Effect of hydrothermal pretreatment on deashing and pyrolysis characteristics of bamboo shoot shells," Energy, Elsevier, vol. 247(C).
    5. Li, Fenghai & Zhao, Chaoyue & Fan, Hongli & Xu, Meiling & Guo, Qianqian & Li, Yang & Wu, Lishun & Wang, Tao & Fang, Yitian, 2022. "Ash fusion behaviors of sugarcane bagasse and its modification with sewage sludge addition," Energy, Elsevier, vol. 251(C).

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