| 利用循环流化床飞灰合成分子筛实验研究 |
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| 引用本文： | 姚刚,卿山,马林转,岳争超,何屏,李瑛. 利用循环流化床飞灰合成分子筛实验研究[J]. 中山大学学报(自然科学版), 2009, 48(Z2) |
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| 作者姓名： | 姚刚 卿山 马林转 岳争超 何屏 李瑛 |
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| 作者单位： | 1. 昆明理工大学电力工程学院,云南昆明,650093
2. 云南民族大学,云南昆明,650095 |
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| 摘 要： | 利用循环流化床锅炉粉煤灰在n(SiO2)/n(Al2O3)≈3.3、Na2O/SiO2为1.2～L 5、H2O/Na2O为40～70、凝胶温度和时间分别为60-70℃、时间2 h、晶化反应温度在90-95℃,晶化时间为4-6 h的条件下可以合成出较高结晶度的分子筛,通过XRD表征发现,产品具有良好的P型分子筛特征峰,其相对结晶度为53%.热重分析可知其具有好的稳定性.
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| 关 键 词： | 循环流化床飞灰 合成 分子筛 |
Experimental Study on Synthesis Molecular Sieve Ashes of Circulating Fluidized Bed |
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| YAO Gang,QING Shan,MA Linzhuan,YUE Zhengchao,HE Ping,LI Ying. Experimental Study on Synthesis Molecular Sieve Ashes of Circulating Fluidized Bed[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2009, 48(Z2) |
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| Authors: | YAO Gang QING Shan MA Linzhuan YUE Zhengchao HE Ping LI Ying |
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| Abstract: | Experimental study showed when n (SiO2) /n (Al2O3)≈3.3, Na2O/SiO2 was 1.2～1.5, H2O/Na2O was 40～70, the gel temperature was 60 -70 ℃, time continued 2h, reaction temperature was 90 -95 ℃, the crystallization time continued 4 -6 h, the fly ash of circulating fluidized bed boiler could synthesize the molecular sieve of higher crystallinity. It had better characteristic peak of P zeolite by the characterization of XRD, good stability by TGA. The relative degree of crystallization was 53%. |
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| Keywords: | ashes of circulating fluidized bed synthesis molecular sieve |
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