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    Author(s): Zhijia Liu; Xing'e Liu; Benhua Fei; Zehui Jiang; Zhiyong Cai; Yan Yu
    Date: 2013
    Source: Renewable Energy, Volume 55, 2013; pp. 1-5
    Publication Series: Scientific Journal (JRNL)
    Station: Forest Products Laboratory
    PDF: View PDF  (227.97 KB)

    Description

    Rice straw pellets are the main type of biomass solid fuel and have great potential as a bioenergy resource of the future in China. But it also showed important problems because of its high content of ashes and its low gross calorific value, reducing the possibility to be used in domestic heating. It was certified that mixing different types of biomass materials was helpful to improve the properties of pellets. To improve properties of rice straw pellets and investigate the effect of mixing bamboo and rice straw on the pellet properties, some properties of pellets, manufactured using different mixing ratio of bamboo and rice straw particles, were determined in this research. It can be concluded from this research that physical properties of all pellets meet the requirements of Pellet Fuels Institute Standard Specification for Residential/Commercial Densified except for bulk density of pellets, manufactured using mixing ratio (<3:2) of bamboo and rice straw. The inorganic ash and gross calorific value of rice straw pellets cannot meet the requirement of Pellet Fuels Institute Standard Specification for Residential/Commercial Densified (8.0%) and the minimum requirement for making commercial pellets of DIN 51731 (>17,500 J/g). Both properties are improved through mixing bamboo particles and rice straw particles. It is significant that inorganic ash content and gross calorific value of pellets, manufactured using mixing ratio (>3:2) of bamboo and rice straw, were lower than 8.0% and higher than 17,500 J/g, respectively. This also shows that mixing different biomass materials is an effective way to optimize properties of biomass solid fuel. All pellets after improvement are proposed as biomass solid fuel and have the potential to be developed as commercial pellets on an industrial scale in China.

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    Citation

    Liu, Zhijia; Liu, Xing'e; Fei, Benhua; Jiang, Zehui; Cai, Zhiyong; Yu, Yan. 2013. The properties of pellets from mixing bamboo and rice straw. Renewable Energy, Volume 55, 2013; pp. 1-5.

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    Keywords

    Biomass, Bioenergy, Bamboo, Rice straw, Pellet

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