Abstract
Pelletization of the loose rice straw is an attractive option to produce renewable fuels. In this paper, we focus on the problem of how to improve this pelletization process, especially reduce energy consumption and improve product quality. In detail, we pretreat rice straw and investigate the densification characteristics of the pretreated materials. Pretreatment methods of the materials include hydrothermal treatment and adding a certain proportion of economic additives, such as rapeseed meal, waste engine oil. The pretreated rice straw was pelletized by using a biomass densification platform, and then the energy consumption and pellet quality were tested. Experimental results indicate that the hydrothermal pretreatment plays an important role in reducing energy consumption and improving product quality, and waste engine oil has a better effect than the rapeseed meal. We also observe that the obtained pellet quality reaches the standard of middle-grade coal, and the proposed pretreatment method realizes the comprehensive utilization of waste agricultural resources.
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Xia, X., Xiao, H., Yang, Z. et al. Pelletization Characteristics of the Hydrothermal Pretreated Rice Straw with Added Binders. Arab J Sci Eng 43, 4811–4820 (2018). https://doi.org/10.1007/s13369-018-3131-4
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DOI: https://doi.org/10.1007/s13369-018-3131-4