Effect of attrition on SO2 capture by limestone under pressurized fluidized bed combustion conditions: comparison between a mathematical model of SO2 capture by single limestone particle under attrition condition and SO2 capture in a large-scale PFBC
Effect of attrition on SO2 capture by limestone under pressurized fluidized bed combustion conditions: comparison between a mathematical model of SO2 capture by single limestone particle under attrition condition and SO2 capture in a large-scale PFBC
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DOI：
10.1016/s0009-2509(01)00298-6
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发表时间：
2001-12
影响因子：
4.7
通讯作者：
T. Shimizu;M. Peglow;Shinichi Sakuno;Nobuhiro Misawa;N. Suzuki;H. Ueda;H. Sasatsu;H. Gotou
中科院分区：
文献类型：
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作者：
T. Shimizu;M. Peglow;Shinichi Sakuno;Nobuhiro Misawa;N. Suzuki;H. Ueda;H. Sasatsu;H. Gotou
对大型加压流化床燃烧器中石灰石的磨损率和SO2捕集率进行了评价。平均磨损率（半径减小率）约为 0.2–。研究发现床层材料每单位外表面积的 SO2 捕获率与烟气中 SO2 浓度无关。提出了磨损条件下单个石灰石颗粒捕集 SO2 的数学模型。当考虑到磨损时，相对于 SO2 浓度的表观反应级数接近于零。有人建议，目前 PFBC 中的 SO2 捕集率受石灰石磨损的影响。
Attrition rate of limestone and SO2 capture rate in a large scale pressurized fluidized bed combustor was evaluated. The average attrition rate (reduction rate of radius) was found to be approximately 0.2–. The SO2 capture rate per unit external surface area of bed material was found to be independent on SO2 concentration in the flue gas. A mathematical model of SO2 capture by single limestone particle under attrition conditions was proposed. Apparent reaction order with respect to SO2 concentration was close to zero when attrition was taken into consideration. It was suggested that the rate of SO2 capture in the present PFBC was governed by the limestone attrition.