Journal
CHINESE JOURNAL OF CHEMICAL ENGINEERING
Volume 19, Issue 5, Pages 815-820Publisher
CHEMICAL INDUSTRY PRESS
DOI: 10.1016/S1004-9541(11)60061-X
Keywords
pre-distributor; computational fluid dynamics; orifices; trough; outflow distribution
Categories
Funding
- National Key Basic Research and Development Program of China [2009CB219905, 2009CB219907]
- Program for Changjiang Scholars and Innovative Research Teams in Universities [IRT0936]
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Liquid distributor is a very import internal for distillation columns. Pre-distributor is usually set on the top of distributor for initial distribution. Fluid flow in pre-distributor is a complex system of variable mass flow with many orifices and sub-branches. Consequently, the two phase modeling of pre-distributors was carried out and the homogeneous model with free surface model was applied. The numerical method was validated by comparing with experimental data. Using the simulated results for different pre-distributors, the impacts of inflow rate, location and orientation upon the outflow distribution were investigated. Furthermore, influences of the outflow distribution for pre-distributor on liquid uniformity in trough were also analyzed. The conclusions can be adopted for the structural design of liquid distributor and pre-distributor of large scale.
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