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Acid treatment effecting the physiochemical structure and thermal degradation of biomass

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  • Javed, Muhammad Amir

Abstract

Biomass is not a mature industry as it concerned with many technical challenges such as ash slagging, heated surface corrosion and fouling which threat safe operation of biomass conversion and increase maintenance cost. The leaching process can eliminate/reduce ash forming constituents from biomass which results the improvement in bio-fuel properties. The wheat straw (WS) sample was chosen for this study and treated with three different diluted acid solutions (CH3COOH, HCl and H2SO4) and their mixture. This study was aimed to maximize ash extraction and energy contents, and to investigate the effect of leaching on thermal degradation and physiochemical structure of wheat straw samples. Acid treatment has significant effects on thermal behavior and char contents of WS samples which were indicated by Thermogravimetric (TGA) and differential Thermogravimetric (DTG) analysis. The physiochemical structure was analyzed by Scanning Electron Microscope (SEM), Brunauer Emmett Teller (BET) method and FTIR spectroscopy. This study demonstrated that acid treatment has ability to reduce ash concentration, which increased energy and char contents of biomass.

Suggested Citation

  • Javed, Muhammad Amir, 2020. "Acid treatment effecting the physiochemical structure and thermal degradation of biomass," Renewable Energy, Elsevier, vol. 159(C), pages 444-450.
    • Handle: RePEc:eee:renene:v:159:y:2020:i:c:p:444-450
    DOI: 10.1016/j.renene.2020.06.011
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    References listed on IDEAS

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    1. Wigley, Tansy & Yip, Alex C.K. & Pang, Shusheng, 2016. "Pretreating biomass via demineralisation and torrefaction to improve the quality of crude pyrolysis oil," Energy, Elsevier, vol. 109(C), pages 481-494.
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    2. Mohd Safaai, Nor Sharliza & Pang, Shusheng, 2021. "Pyrolysis kinetics of chemically treated and torrefied radiata pine identified through thermogravimetric analysis," Renewable Energy, Elsevier, vol. 175(C), pages 200-213.
    3. Chen, Zhichao & Qiao, Yanyu & Wu, Xiaolan & Zheng, Yu & Li, Jiawei & Yuan, Zhenhua & Li, Zhengqi, 2023. "Effect of demineralization on pyrolysis semi-coke physical and chemical characteristics and oxy-fuel combustion characteristics," Energy, Elsevier, vol. 262(PB).
    4. Zheng, Liangqian & Jin, Jing & Zhang, Ruipu & Liu, Zhongyi & Zhang, Li, 2023. "Understanding the effect of dolomite additive on corrosion characteristics of straw biomass ash through experiment study and molecular dynamics calculations," Energy, Elsevier, vol. 271(C).

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