Continuous Distillation Experiment with Rotating Packed Bed

›› 2008, Vol. 16 ›› Issue (4): 656-662.

• • 上一篇

Continuous Distillation Experiment with Rotating Packed Bed

栗秀萍^1,2, 刘有智^1,2, 李志强¹, 王晓莉¹

1. Chemical Engineering, Environment School, North University of China, Taiyuan 030051, China;
2. Research Center of Shanxi Province for High Gravity Chemical Engineering, Technology, Taiyuan 030051, China

收稿日期:2007-09-10 修回日期:2008-03-13 出版日期:2008-08-28 发布日期:2008-08-28
通讯作者: LIU Youzhi, E-mail: lxpzhongxin@126.com
基金资助:
the Specialized Research Fund for the Doctoral Program of Higher Education of China(20060110003)

Continuous Distillation Experiment with Rotating Packed Bed

LI Xiuping^1,2, LIU Youzhi^1,2, LI Zhiqiang¹, WANG Xiaoli¹

1. Chemical Engineering, Environment School, North University of China, Taiyuan 030051, China;
2. Research Center of Shanxi Province for High Gravity Chemical Engineering, Technology, Taiyuan 030051, China

Received:2007-09-10 Revised:2008-03-13 Online:2008-08-28 Published:2008-08-28
Supported by:
the Specialized Research Fund for the Doctoral Program of Higher Education of China(20060110003)

摘要/Abstract

摘要： The performance of a rotating packed bed (RPB) with three kinds of packings was investigated using alcohol/water solution under continuous distillation conditions at atmospheric pressure. The effects of average high gravity factor (β), reflux ratio (R), and feedstock flux (F) on mass-transfer in distillation were examined separately. Experimental results indicated that the total number of theoretical units (NTU) of RPB increased with β, R, and F. Of the three kinds of packings, the wave thread packing of stainless steel (Packing Ⅲ) had the best mass transfer efficiency with the height equivalent of a theoretical plate (HETP) of approximately 7.35 mm-23.58 mm, whereas the corrugated disk packing of stainless steel (Packing I) had the worst one with the HETP of about 13.4 mm-48.07 mm. Correlations were developed to describe the mass transfer efficiency for packings. Comparing experimental data with the data calculated by correlation, the average deviate obtained for each packing was 0.72%, 1.98%, and 2.7%, respectively, implying that the accuracy of correlations developed was reasonable.

关键词: rotating packed bed, continuous distillation, packing, correlation

Abstract: The performance of a rotating packed bed (RPB) with three kinds of packings was investigated using alcohol/water solution under continuous distillation conditions at atmospheric pressure. The effects of average high gravity factor (β), reflux ratio (R), and feedstock flux (F) on mass-transfer in distillation were examined separately. Experimental results indicated that the total number of theoretical units (NTU) of RPB increased with β, R, and F. Of the three kinds of packings, the wave thread packing of stainless steel (Packing Ⅲ) had the best mass transfer efficiency with the height equivalent of a theoretical plate (HETP) of approximately 7.35 mm-23.58 mm, whereas the corrugated disk packing of stainless steel (Packing I) had the worst one with the HETP of about 13.4 mm-48.07 mm. Correlations were developed to describe the mass transfer efficiency for packings. Comparing experimental data with the data calculated by correlation, the average deviate obtained for each packing was 0.72%, 1.98%, and 2.7%, respectively, implying that the accuracy of correlations developed was reasonable.

Key words: rotating packed bed, continuous distillation, packing, correlation

栗秀萍, 刘有智, 李志强, 王晓莉. Continuous Distillation Experiment with Rotating Packed Bed[J]. , 2008, 16(4): 656-662.

LI Xiuping, LIU Youzhi, LI Zhiqiang, WANG Xiaoli. Continuous Distillation Experiment with Rotating Packed Bed[J]. , 2008, 16(4): 656-662.

参考文献

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Continuous Distillation Experiment with Rotating Packed Bed

Continuous Distillation Experiment with Rotating Packed Bed

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