Journal
CHINESE JOURNAL OF CHEMICAL ENGINEERING
Volume 17, Issue 1, Pages 47-52Publisher
CHEMICAL INDUSTRY PRESS
DOI: 10.1016/S1004-9541(09)60031-8
Keywords
counter current; liquid film; two phases; structured packing
Categories
Funding
- National Natural Science Foundation of China [20070003154]
- National High Technology Research and Development Program of China [2006AA05Z316, 2006AA030202]
- Specialized Research Fund for Doctoral Program of Higher Education of China [20070003154]
- Key Program for International Cooperation of Science and Technology, China [2001CB711203]
Ask authors/readers for more resources
Structured packing is a good candidate for CO2 capture process because of its higher mass transfer efficiency and lower pressure drop. Now, the challenging problem of CO2 capture and storage demands more and more efficiency equipment. The aim of the present study is to investigate the liquid film characteristics under counter current gas phase and throw some insight into the enhancing mechanism of mass transfer performance in structured packing. A high speed digital camera, non-intrusive measurement technique, was used. Water and air were working fluids. Experiments were carried out for different gas/liquid flow rates and different inclination angles. The time-average and instantaneous film widths for each set of flow parameters were calculated. It is shown that the effects of gas phase could be neglected for lower flow rate, and then, become more pronounced at higher flow rate. According to instantaneous film width, three different stages can be distinguished. One is the constant width of liquid film. The second is the slight decrease of film width and the smooth surface. This kind of character will lead to less interfacial area and deteriorate the packing mass transfer performance. For the third stage, the variation of film width shows clearly chaotic behavior. The prediction model was also developed in present work. The predicted and experimental results are in good agreement.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available