Fungal pretreatment of reed derived metal salt embedded biochar for improved toluene conversion as a tar model compound

Chuan Peng, Zhuojian Cai, Huiyun Liang, Yuqi Zhou, Xinlin Chen, Jing Zhao, Jinkang Xiao and Junfeng Zhang

Energy, 2024, vol. 313, issue C

Abstract: The development of functional biochar represents a promising approach to improving the conversion of organic compounds through its surface area, porosity, and enhanced catalytic activity. In this study, we propose the production of biologically modified biochar, coupled with metal salt impregnation via pyrolysis, to effectively convert toluene as a model compound for tar. The results indicate that at 750 °C, the toluene conversion rate of biologically pretreated biochar (BRC-7) is 62.7 %, significantly higher than that of the untreated biochar (RC), which has a conversion rate of 33.7 %. Analyses using BET and SEM-EDS revealed that BRC-7 possesses a larger surface area (59.84 m2/g) and a higher percentage of surface alkali metals (8 %). Furthermore, The presence of metals markedly influenced the toluene conversion rate, with BRC-Ni achieving a conversion rate of 87.6 % at 750 °C, which surpasses that of all other samples. Consequently, it can be deduced that the biological pretreatment of biomass materials during biochar production augments the catalytic activity of the resultant biochar for tar conversion, endowing it with enhanced stability and durability.

Keywords: Reed; Fungal pretreatment; Biochar; Toluene conversion; Metal loads (search for similar items in EconPapers)
Date: 2024
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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:313:y:2024:i:c:s0360544224037149

DOI: 10.1016/j.energy.2024.133936

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