| 细颗粒增强气液传质机理及模型研究 |
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| 引用本文： | 张丹,许春建,周明.细颗粒增强气液传质机理及模型研究[J].化学反应工程与工艺,2005,21(3):267-273. |
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| 作者姓名： | 张丹 许春建 周明 |
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| 作者单位： | 天津大学化学工程研究所,天津,300072;天津大学化学工程研究所,天津,300072;天津大学化学工程研究所,天津,300072 |
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| 基金项目： | 国家自然科学基金重点项目(20136010) |
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| 摘 要： | 分散细颗粒(包括分散固体颗粒和分散液滴)可以明显增强气液传质。简要叙述了目前提出的三种颗粒增强传质机理：传输作用，边界层混合作用和阻止气泡聚并作用，讨论了每种机理可能适用的体系。评述了近年来发展的有代表性的经验模型和基于不同机理的理论模型，并指出今后模型的建立应以湍流理论为桥梁，综合考虑多种传质机理。
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| 关 键 词： | 增强传质 传质机理 传质模型 增强因子 分散颗粒 多相体系 |
| 文章编号： | 1001-7631(2005)03-0267-07 |
| 修稿时间： | 2005年1月20日 |
Gas-Liquid Mass Transfer Enhanced by Finely Dispersed Particles |
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| Zhang Dan,XU Chunjian,Zhou Ming.Gas-Liquid Mass Transfer Enhanced by Finely Dispersed Particles[J].Chemical Reaction Engineering and Technology,2005,21(3):267-273. |
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| Authors: | Zhang Dan XU Chunjian Zhou Ming |
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| Abstract: | The gas-liquid mass transfer is enhanced significantly due to presence of some finely dis- persed particles (activated carbon,dispersed oil and so on) in multiphase systems.A brief overview was given of the three popular mass transfer mechanisms in literature,shuttle effect,mixing of the gas-liquid boundary layer and inhibition of bubble coalescence.The gas-liquid mass transfer models newly developed and the corresponding typical enhancement factor models were reviewed,and then a new model was suggested to be proposed taking into account of the three mechanisms by a bridge of turbulence theory. |
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| Keywords: | mass transfer enhancement mass transfer mechanism mass transfer model enhancement factor dispersed particle multiphase system |
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