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Studies of the Brazilian sugarcane bagasse carbonisation process and products properties

机译:巴西甘蔗渣蔗糖碳化过程和产品特性的研究

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Laboratory-scale experiments in an enlarged scale thermoreactor have demonstrated that the pyrolysis of the bagasse bulk in a mechanically loosened layer yields 23-28 charcoal measured on an oven dry basis. The charcoal is appropriate for the production of fuel briquettes and granules for household and industry uses. To implement an energy self-sufficient production process, yields of condensable matter and gas components were determined. It is shown that their combined heat of combustion exceeds the upper limit of the heat necessary to carbonise the biomass by 1.6 to 1.8 times. To overcome the difficulties caused by a high fine particles content and the fibrous structure of bagasse, the use of a rotary drum type apparatus is suggested to be appropriate. Due to technological considerations, a two-stage process may be recommended: a heating up and pyrolysis stage up to 350 deg C, and a charcoal glowing stage with the peak temperature 475-500 deg C. Such a reactor unit with a joint furnace and closed pyroligneous vapour and heat carrier flow system greatly reduces the emission of carbon monoxide (CO) and dust particles. Bagasse can be used as an alternative source of traditional wood for charcoal production. It could prevent the deforestation of native forests.
机译:在放大的热反应器中的实验室规模的实验已经证明,在机械疏松的层中对甘蔗渣块的热解产生以烘箱干燥为基础的23-28个木炭。该木炭适用于生产家用和工业用的燃料压块和颗粒。为了实现能源自给自足的生产过程,确定了可冷凝物和气体成分的产量。结果表明,它们的总燃烧热超过了将生物质碳化所需的热量上限的1.6到1.8倍。为了克服高微粒含量和甘蔗渣纤维结构所带来的困难,建议使用转鼓式设备是合适的。由于技术上的考虑,建议采用两阶段工艺:加热和热解阶段达到350摄氏度,木炭燃烧阶段的峰值温度为475-500摄氏度。封闭的焦木蒸气和载热体流动系统大大减少了一氧化碳(CO)和粉尘颗粒的排放。甘蔗渣可以用作木炭生产的传统木材的替代来源。它可以防止原生森林的砍伐。

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