Continuous Distillation Experiment with Rotating Packed Bed

• Published in: Chinese journal of chemical engineering Vol. 16; no. 4; pp. 656 - 662
• Main Author: 栗秀萍 刘有智 李志强 王晓莉
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 2008
• Subjects: continuous distillation; correlation; packing; rotating packed bed; 关联式; 实验研究; 旋转填料床; 连续精馏; rotating packed bed; correlation; packing; continuous distillation
• ISSN: 1004-9541; 2210-321X
• DOI: 10.1016/S1004-9541(08)60137-8

The performance of a rotating packed bed （RPter solutioB） with three kinds of packings was investigated using alcohol/wan 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 ram, whereas the corrugated disk pacing of stainless steel,（Packing Ⅰ） had the worst one with the HETP of about 13.4 mm-48.07 mm.Correlations were cleveloped 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.