CFD Simulation of Mass Transfer Efficiency and Pressure Drop in a Structured Packed Distillation Column

2007 ◽  
Vol 30 (7) ◽  
pp. 854-861 ◽  
Author(s):  
M. Haghshenas Fard ◽  
M. Zivdar ◽  
R. Rahimi ◽  
M. Nasr Esfahani ◽  
A. Afacan ◽  
...  
Keyword(s):  
Mass Transfer ◽  
Pressure Drop ◽  
Distillation Column ◽  
Cfd Simulation ◽  
Transfer Efficiency ◽  
Mass Transfer Efficiency ◽  
Packed Distillation Column

Hydrodynamics and Mass Transfer Behavior of a Novel Structured Packing with Diversion Windows

2011 ◽  
Vol 391-392 ◽  
pp. 1459-1463 ◽  
Author(s):  
Xue Li ◽  
Chun Jiang Liu ◽  
Xi Gang Yuan
Keyword(s):  
Mass Transfer ◽  
Pressure Drop ◽  
High Capacity ◽  
Transfer Efficiency ◽  
The Novel ◽  
Growth Trend ◽  
Desorption Process ◽  
Structured Packing ◽  
Mass Transfer Efficiency ◽  
Slight Growth

A novel structured packing with diversion windows is developed with the objective of achieving comparable pressure drop, high capacity and preferable mass transfer efficiency. The hydrodynamics and mass transfer performance of the packing have been investigated using a 384 mm diameter column. Carbon dioxide desorption process for mass transfer experiments at room temperatures and atmospheric pressures were conducted. Compared with the traditional Mellapak 350X, both the liquid holdup and mass transfer efficiency of the novel structured packing (350X with diversion windows) are increased by 15% or so; additionally, the pressure drop presented a slight growth trend, about 20% higher. It is concluded that the novel structured packing with adding diversion windows can change the flow pattern of the liquid film on the packing sheet and increase the effective mass transfer area, as well as the gas-liquid mass transfer efficiency.

CFD Simulation of Hydrodynamics, Heat and Mass Transfer Simultaneously in Structured Packing

2008 ◽  
Vol 6 (1) ◽  
Author(s):  
M.R. Khosravi Nikou ◽  
M.R. Ehsani ◽  
M. Davazdah Emami
Keyword(s):  
Experimental Data ◽  
Mass Transfer ◽  
Pressure Drop ◽  
Heat And Mass Transfer ◽  
Cfd Simulation ◽  
Fluid Dynamic ◽  
Theoretical Plate ◽  
Absolute Relative Error ◽  
Gas Liquid Flow ◽  
Counter Current

This paper describes the results of computational fluid dynamic modeling of hydrodynamics, heat and mass transfer simultaneously in Flexipac 1Y operated under a counter-current gas-liquid flow condition. The simulation was performed for a binary mixture of methanol-isopropanol distillation. The pressure drop, the height of equivalent to theoretical plate (HETP) and temperature distribution across the column were calculated and compared with experimental data. The mean absolute relative error (MARE) between CFD predictions and experimental data for the pressure drop, HETP and temperature profile are 20.7%, 12.9% and 2.8%, respectively.

Mass transfer efficiency of screen packings with gas crossflow

1987 ◽  
Vol 23 (9) ◽  
pp. 426-428
Author(s):  
K. F. Bogatykh ◽  
M. N. Minnullin ◽  
A. F. Artem'ev
Keyword(s):  
Mass Transfer ◽  
Transfer Efficiency ◽  
Mass Transfer Efficiency
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