Study on NO Reduction and Its Heterogeneous Mechanism through Biomass Reburning in an Entrained Flow Reactor
Study on NO Reduction and Its Heterogeneous Mechanism through Biomass Reburning in an Entrained Flow Reactor
复制标题
气流床反应器生物质再燃烧还原NO及其多相机理研究
DOI：
10.1021/ef2002553
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发表时间：
2011-06
期刊：
影响因子：
--
通讯作者：
刘永生
中科院分区：
文献类型：
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作者：
卢平;王永桥;黄震;陆飞;刘永生
在气流床反应器中，系统地研究了生物质种类(棉秆、麦秆、稻壳和稻草)、再燃区化学计量比(SR2)、再燃区反应温度(T2)、生物质再燃燃料粒度(DP)和再燃燃料分数(RFF)对生物质再燃NO还原效率的影响。分析了麦草及其半焦再燃过程中NO的非均相还原机理。结果表明，棉秆的NO还原效果最好，麦秆次之，稻壳和稻草次之。在T2=900~1100℃范围内，在相同的SR2下，再燃区反应温度越高，NO还原效率越高。随着生物质颗粒尺寸的减小，NO还原效率增加不明显，NO还原效率呈现出先增加后降低的规律，即Dp<；425μm生物质。
The effects of biomass types (including cotton stalk, wheat straw, rice husk, and rice straw), the stoichiometric ratio in the reburning-zone (SR2), the reaction temperature in the reburning-zone (t2), the particle sizes of biomass reburning fuels (dp), and the reburning fuel fraction (Rff) on NO reduction efficiency during biomass reburning were investigated systematically in an entrained flow reactor. The NO heterogeneous reduction mechanism resulting from the reburning of wheat straw and its char was analyzed. The results indicated that cotton stalk has the best performance of NO reduction, wheat straw is in second place, and rice husk and rice straw are less effective. In the range of t2 = 900–1100 °C NO reduction efficiency increases when the reburning-zone reaction temperature is increased at the same SR2. NO reduction efficiency increases insignificantly with a decrease in the particle size of the biomass with dp < 425 μm. NO reduction efficiency follows a pattern of first increasing and then decre...
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影响因子：
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影响因子：
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DOI：
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发表时间：
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期刊：
--
影响因子：
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