| 石灰石快速煅烧及表面积形成的实验研究 |
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| 引用本文： | 郑瑛,史学锋,容伟,郑楚光. 石灰石快速煅烧及表面积形成的实验研究[J]. 华中科技大学学报(自然科学版), 1999, 27(3) |
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| 作者姓名： | 郑瑛 史学锋 容伟 郑楚光 |
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| 作者单位： | 华中理工大学煤燃烧国家重点实验室 |
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| 基金项目： | 湖北省电力局资助,湖北省电力试验研究所资金资助 |
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| 摘 要： | 使用流动反应器对石灰石颗粒（粒径为１３．６５～１５２．３３μｍ）在Ｎ２气氛下的煅烧分解过程进行了实验研究．考虑了煅烧温度、停留时间、颗粒粒径对石灰石分解速率的影响，并且用前人提出的收缩核模型、均匀转化模型以及经验修正的收缩核模型对石灰石煅烧分解速率的预测结果与实验结果进行了比较．另外还使用ＡＳＡＰ２０００比表面积测定仪对煅烧产物的ＢＥＴ比表面积的变化规律进行了研究
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| 关 键 词： | 石灰石 煅烧动力学 比表面积 |
The Experimental Study of the Flash Calcination and the Surface Area Development of Dispersed Limestone Particles |
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| Zheng Ying,Shi Xuefeng,Rong Wei,Zheng Chuguang. The Experimental Study of the Flash Calcination and the Surface Area Development of Dispersed Limestone Particles[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1999, 27(3) |
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| Authors: | Zheng Ying Shi Xuefeng Rong Wei Zheng Chuguang |
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| Abstract: | The calcination and the surface area development of dispersed limestone particles entrained in N 2 are studied by the use of a flow reactor. The effects of entrained gas temperature, the resistance times, and the particles diameter on calcination extent and surface area development are discussed. The experimental results are compared with simulate one by using shrinking core model, modified expirically shrinking core one, and even conversion one. The BET surface areas are measured with ASAP2000. |
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| Keywords: | limestone calcination kinetics surface area |
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