| 超声场下搅拌槽内微观混合 |
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| 引用本文： | 杨小斌,刘进荣,李彩虹,李辉. 超声场下搅拌槽内微观混合[J]. 化学工程, 2009, 37(1) |
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| 作者姓名： | 杨小斌 刘进荣 李彩虹 李辉 |
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| 作者单位： | 内蒙古工业大学,化工学院,内蒙古,呼和浩特,010051;内蒙古工业大学,化工学院,内蒙古,呼和浩特,010051;内蒙古工业大学,化工学院,内蒙古,呼和浩特,010051;内蒙古工业大学,化工学院,内蒙古,呼和浩特,010051 |
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| 摘 要： | 以醋酸锌、氯乙酸乙酯和氢氧化钠的平行反应为研究体系,考察了较高物料浓度时超声场下搅拌槽内的微观混合情况。结果表明:搅拌和超声波振荡对微观混合有明显的强化作用,在不同超声功率下,存在搅拌速率N对微观混合影响的临界搅拌速率Nc。当N>Nc时,搅拌速率对微观混合的影响可以忽略;N
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| 关 键 词： | 微观混合 临界搅拌速率 超声波 隔离指数 |
Micromixing inside stirred tank reactor in ultrasonic field |
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| YANG Xiao-bin,LIU Jin-rong,LI Cai-hong,LI Hui. Micromixing inside stirred tank reactor in ultrasonic field[J]. Chemical Engineering, 2009, 37(1) |
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| Authors: | YANG Xiao-bin LIU Jin-rong LI Cai-hong LI Hui |
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| Affiliation: | School of Chemical Engineering;Inner Mongolia University of Technology;Hohhot 010051;Inner Mongolia;China |
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| Abstract: | The micromixing efficiency inside the stirred tank reactor in various ultrasonic fields was investigated on the basis of a unique parallel reaction system with zinc acetate,sodium hydroxide and ester chloroacetate when the reactant concentration was higher.The results show that the micromixing can be enhanced via improving stir speed N and ultrasonic surging,and there exists a critical stir speed Nc at various ultrasonic powers.At N>Nc,the effect of the stir speed on the micromixing may be ignored;at N
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| Keywords: | micromixing critical stir speed ultrasonic segregation index |
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