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首页> 外文会议>International Conference on Fluidized Bed Combustion >AGGLOMERATION IN FLUIDIZED BED COMBUSTION OF BIOMASS - MECHANISMS AND CO-FIRING WITH COAL
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AGGLOMERATION IN FLUIDIZED BED COMBUSTION OF BIOMASS - MECHANISMS AND CO-FIRING WITH COAL

机译：流化床燃烧中的凝聚 - 煤炭机制和共用

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摘要

This paper presents the results from systematic experiments conducted in a laboratory scale fluidized bed combustor in order to study agglomeration phenomena during firing straw and co-firing coal with straw. The results show that temperature has the most pronounced effect on the agglomeration tendency. When co-firing coal with straw, the defluidization time can be extended significantly. Examination of the agglomerates sampled during combustion by various analytical techniques indicates that the high potassium content in straw causes the formation of agglomerates. In the combustion process, potassium-containing compounds are prone to remain in the bed and form low melting temperature potassium rich ash. The molten ashes coat the surfaces of the bed material, promoting agglomeration and defluidization in FBC. Based on the experimental results, the mechanisms of agglomeration are discussed and strategies for minimizing agglomeration are proposed.
机译：本文介绍了在实验室规模流化床燃烧室中进行的系统实验的结果，以便在射击秸秆和稻草共用煤中研究凝聚现象。结果表明，温度对凝聚倾向具有最明显的影响。当用吸管共用煤时，流失时间可以显着延长。通过各种分析技术检查在燃烧期间取样的附聚物表明，秸秆中的高钾含量导致形成附聚物。在燃烧过程中，含钾化合物容易留在床中并形成富含浓度的浓度的浓度低熔化温度。熔融灰涂层床材料的表面，促进FBC中的聚集和流失。基于实验结果，讨论了附聚机制，提出了最小化聚集的策略。

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