| 气液固三相循环流化床气液传质行为 |
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| 引用本文： | 杨卫国,王金福,周黎明,金涌.气液固三相循环流化床气液传质行为[J].化工学报,1999,50(5):700-704. |
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| 作者姓名： | 杨卫国 王金福 周黎明 金涌 |
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| 作者单位： | 清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084 |
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| 基金项目： | 国家自然科学基金资助项目(No.29876019). |
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| 摘 要： | <正>气液固三相流化床反应器在石油化工、湿法冶金、环境工程和煤的液化等工业领域得到了广泛应用,其基础研究也取得了很大进展.但是,传统三相床主要应用于低液速(U_L<
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| 关 键 词： | 三相循环流化床 气液传质 体积传质系数 轴向扩散模型 |
GAS-LIQUID MASS TRANSFER BEHAVIOR IN THREE-PHASE CIRCULATING FLUIDIZED BED REACTORS |
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| Yang Weiguo,Wang Jinfu,Zhou Liming,Jin Yong.GAS-LIQUID MASS TRANSFER BEHAVIOR IN THREE-PHASE CIRCULATING FLUIDIZED BED REACTORS[J].Journal of Chemical Industry and Engineering(China),1999,50(5):700-704. |
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| Authors: | Yang Weiguo Wang Jinfu Zhou Liming Jin Yong |
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| Abstract: | In this study, the gas-liquid volumetric mass transfer coefficient is estimated by using the oxygen dissolution method in a three - phase circulating fluidized bed reactor of 140 mm inner diameter and 3.0m height. The volumetric mass transfer coefficient kLa is obtained from the measured bulk concentration of the liquid phase by fitting to the axial dispersion model. The influences of the main operation conditions, including superficial gas velocity, superficial liquid velocity and solid circulating rate, are studied systematically. The experimental results are compared with previous researches that were conducted in conventional three-phase fluidized beds. |
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| Keywords: | three-phase circulating fluidized bed gas-liquid mass transfer volumetric mass transfer coefficient axial dispersion model |
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