Liquid Holdup for Two-Phase Countercurrent Flow in the Packed Column with a Novel Internal

2002 ◽  
Vol 41 (17) ◽  
pp. 4435-4438 ◽  
Author(s):  
Minghan Han ◽  
Hongfei Lin ◽  
Jinfu Wang ◽  
Yong Jin
Keyword(s):  
Packed Column ◽  
Countercurrent Flow ◽  
Liquid Holdup ◽  
Two Phase

Experimental and CFD analysis of two-phase cross/countercurrent flow in the packed column with a novel internal

2005 ◽  
Vol 60 (22) ◽  
pp. 6210-6216 ◽  
Author(s):  
Yanhui Yuan ◽  
Minghan Han ◽  
Yi Cheng ◽  
Dezheng Wang ◽  
Yong Jin
Keyword(s):  
Packed Column ◽  
Countercurrent Flow ◽  
Cfd Analysis ◽  
Two Phase

Mass transfer coefficient for two-phase countercurrent flow in a packed column with a novel internal

2004 ◽  
Vol 99 (3) ◽  
pp. 273-277 ◽  
Author(s):  
Yanhui Yuan ◽  
Minghan Han ◽  
Lunwei Wang ◽  
Dezheng Wang ◽  
Yong Jin
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Packed Column ◽  
Countercurrent Flow ◽  
Two Phase

scholarly journals Investigation of countercurrent flow profile and liquid holdup in random packed column with local CFD data

2020 ◽  
Vol 221 ◽  
pp. 115693
Author(s):  
Yucheng Fu ◽  
Jie Bao ◽  
Rajesh Singh ◽  
Chao Wang ◽  
Zhijie Xu
Keyword(s):  
Packed Column ◽  
Flow Profile ◽  
Countercurrent Flow ◽  
Liquid Holdup

Radial Mixing during Two-Phase Countercurrent Flow through a Packed Column

1966 ◽  
Vol 5 (3) ◽  
pp. 430-432 ◽  
Author(s):  
K. L. Anderson ◽  
O. M. Stokke ◽  
R. E. Gilbert
Keyword(s):  
Packed Column ◽  
Countercurrent Flow ◽  
Two Phase ◽  
Flow Through

The effect of two-phase flow regime on hydrodynamics and mass transfer in a horizontal-tube gas-liquid reactor

1985 ◽  
Vol 50 (3) ◽  
pp. 745-757 ◽  
Author(s):  
Andreas Zahn ◽  
Lothar Ebner ◽  
Kurt Winkler ◽  
Jan Kratochvíl ◽  
Jindřich Zahradník
Keyword(s):  
Mass Transfer ◽  
Pressure Drop ◽  
Flow Regime ◽  
Liquid Flow ◽  
Horizontal Tube ◽  
Liquid Holdup ◽  
Two Phase ◽  
Flow Rates ◽  
Type Relation ◽  
Good Agreement

The effect of two-phase flow regime on decisive hydrodynamic and mass transfer characteristics of horizontal-tube gas-liquid reactors (pressure drop, liquid holdup, kLaL) was determined in a cocurrent-flow experimental unit of the length 4.15 m and diameter 0.05 m with air-water system. An adjustable-height weir was installed in the separation chamber at the reactor outlet to simulate the effect of internal baffles on reactor hydrodynamics. Flow regime maps were developed in the whole range of experimental gas and liquid flow rates both for the weirless arrangement and for the weir height 0.05 m, the former being in good agreement with flow-pattern boundaries presented by Mandhane. In the whole range of experi-mental conditions pressure drop data could be well correlated as a function of gas and liquid flow rates by an empirical exponential-type relation with specific sets of coefficients obtained for individual flow regimes from experimental data. Good agreement was observed between values of pressure drop obtained for weirless arrangement and data calculated from the Lockhart-Martinelli correlation while the contribution of weir to the overall pressure drop was well described by a relation proposed for the pressure loss in closed-end tubes. In the region of negligible weir influence values of liquid holdup were again succesfully correlated by the Lockhart-Martinelli relation while the dependence of liquid holdup data on gas and liquid flow rates obtained under conditions of significant weir effect (i.e. at low flow rates of both phases) could be well described by an empirical exponential-type relation. Results of preliminary kLaL measurements confirmed the decisive effect of the rate of energy dissipation on the intensity of interfacial mass transfer in gas-liquid dispersions.

Liquid flow distribution in a two-phase countercurrent packed column

1977 ◽  
Vol 32 (3) ◽  
pp. 343-345
Author(s):  
A.A.Badr El-Din ◽  
M.M. El-Halwagi ◽  
M.A. Saleh
Keyword(s):  
Liquid Flow ◽  
Packed Column ◽  
Flow Distribution ◽  
Two Phase
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