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Experimental and Numerical Investigation of Wood Particle Combustion in Fixed Bed Reactors

机译：固定床反应器中木材颗粒燃烧的实验和数值研究

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摘要

The effect of wood particle properties and operation conditions on conversion rates and bed temperatures were investigated experimentally in fixed-bed reactors. Conversion rates were strongly dependent on initial moisture and size of the solid particles as well as on air feed. Experimental setups were modeled numerically with the assumption of the fixed bed representing a porous medium composed of spherical particles that undergo drying and pyrolysis with simultaneous burnout and gasification of the volatile and solid (char) pyrolysis products. The model described experimental results with good accuracy. Further investigations with different fuels and fuel mixtures were performed, and thus a comprehensive database is available to understand and predict the behavior of large industrial facilities, for example, biomass- and solid-recovered fuel incinerators with grate furnaces.
机译：在固定床反应器中，实验研究了木材颗粒性质和操作条件对转化率和床温的影响。转化率在很大程度上取决于初始水分和固体颗粒的大小以及进料空气。在固定床代表由球形颗粒组成的多孔介质的固定床进行数值模拟的过程中，球形颗粒经过干燥和热解，同时挥发和固体（炭）热解产物燃烧并气化。该模型以良好的准确性描述了实验结果。对不同的燃料和燃料混合物进行了进一步的研究，因此可以使用一个全面的数据库来理解和预测大型工业设施的行为，例如，带有炉排炉的生物质和固体回收燃料焚烧炉。

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