| 多管气升式环流反应器的液体循环 |
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| 引用本文： | 刘永民,刘铮,穆克,袁乃驹. 多管气升式环流反应器的液体循环[J]. 中国化学工程学报, 2000, 8(3): 267-271 |
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| 作者姓名： | 刘永民 刘铮 穆克 袁乃驹 |
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| 作者单位： | [1]DepartmentofPetrochemicalEngineering,FushunPetroleumInstitute,Fushun113001,China [2]DepartmentofChemicalEngineering,TsinghuaUniversity,Beijing100084,China |
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| 基金项目： | Supported by Liaoning Provincial Natural Science Foundation(No.972050). |
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| 摘 要： | A multi-tube air-lift loop reactor (MT-ALR) is presented in this paper. Based on the energy conservation, a mathematical model describing the liquid circulation flow rate was developed, which was determined by gas velocity, the cross areas of riser and downcomer, gas hold-up and the local frictional loss coefficient. The experimental data indicate that either increase of gas flow rate or reduction of the downcomer diameter contributes to higher liquid circulation rate. The correlation between total and the local frictional loss coefficients was also established.Effects of gas flowrate in two risers and diameter of downcomer on the liquid circulation rate were examined. The value of total frictional loss coefficient was measured as a function of the cross area of downcomer and independent of the gas flow rate. The calculated results of liquid circulation rates agreed well with the experimental data with an average relative error of 9.6%.
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| 关 键 词： | 多管气升式环流反应器 液体循环速率 摩擦损耗系数 气流相 |
| 修稿时间： | |
Liquid Circulation in a Multi-tube Air-lift Loop Reactor |
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| Liu Yongmin,LIU Zheng,MU Ke,YUAN Naiju. Liquid Circulation in a Multi-tube Air-lift Loop Reactor[J]. Chinese Journal of Chemical Engineering, 2000, 8(3): 267-271 |
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| Authors: | Liu Yongmin LIU Zheng MU Ke YUAN Naiju |
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| Affiliation: | Department of Petrochemical Engineering, Fushun Petroleum Institute, Fushun 113001, China Department of Chemical Engineering, Tsinghua University , Beijing 100084, China |
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| Abstract: | A multi-tube air-lift loop reactor (MT-ALR) is presented in this paper. Based on the energy conservation, a mathematical model describing the liquid circulation flow rate was developed, which was determined by gas velocity, the cross areas of riser and downcomer, gas hold-up and the local frictional loss coefficient. The experimental data indicate that either increase of gas flow rate or reduction of the downcomer diameter contributes to higher liquid circulation rate. The correlation between total and the local frictional loss coefficients was also established. Effects of gas flowrate in two risers and diameter of downcomer on the liquid circulation rate were examined. The value of total frictional loss coefficient was measured as a function of the cross area of downcomer and independent of the gas flow rate. The calculated results of liquid circulation rates agreed well with the experimental data with an average relative error of 9.6%. |
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| Keywords: | reactor air-lift loop reactor multi-tube liquid circulation velocity frictional loss coefficient |
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