+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

A model for the pressure drop in gas-liquid cocurrent downflow through packed beds



A model for the pressure drop in gas-liquid cocurrent downflow through packed beds



Chemical Engineering Journal 51(1): 8



A mode for pressure drop is proposed for gas-liquid flow through packed beds on the basis of the observed absence of radial pressure gradients and taking into consideration the structure of the bed and the physical properties of the fluids. The model divides the total voidage of the bed into internal and external voidage and appropriately distributes the total liquid holdup into internal and external holdup. Over 2500 experimental data, from the present study was well as those reported in literature, are correlated by the model with an r.m.s. deviation of less than +-96%. The significant parameters affecting the two-phase pressure drop are found to be the bed porosity, the Reynolds number, and the product of the Eotvos and the Morton numbers.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 008046949

Download citation: RISBibTeXText

DOI: 10.1016/0300-9467(93)80004-8


Related references

Flow pattern and pressure drop in gas-liquid cocurrent downflow through packed beds. Bioprocess Engineering 12(4): 215-220, 1995

Two-phase pressure drop in cocurrent downflow in packed beds: Air-silicone oil systems. Aiche Journal 26(2): 314-317, 1980

Flow regimes, liquid holdups and two-phase pressure drop for two-phase cocurrent downflow and upflow through packed beds: air/Newtonian and non-Newtonian liquid systems. Chemical Engineering Science 52(21-22): 4045-4053, 1997

Transition to pulsing flow, holdup and pressure drop in packed columns with cocurrent gas-liquid downflow. Chemical Engineering Science 38(5): 687-699, 1983

Liquid holdup and pressure drop in the gasliquid cocurrent downflow packed-bed reactor under elevated pressures. Chemical Engineering Science 59(22-23): 5387-5393, 2004

Pressure drop in gas-liquid downflow through packed beds. Aiche Journal 33(12): 2027-2036, 1987

Effective interfacial area in gas-liquid cocurrent downflow through packed beds. Bioprocess and Biosystems Engineering 7(1-2): 29-34, 1991

Lateral thermal dispersion in gas-liquid cocurrent downflow through packed beds. Aiche Journal 42(10): 2977-2983, 1996

Effective interfacial area in gas liquid cocurrent downflow through packed beds. Bioprocess Engineering 7(1-2): 29-34, 1991

Flow regime identification and pressure drop in cocurrent gas-liquid upflow through packed beds. Bioprocess Engineering 16(6): 355-360, 1997

Solid-liquid mass transfer in packed beds with cocurrent gas-liquid downflow. Aiche Journal 31(7): 1059-1068, 1985

Evaluation of heat transfer parameters in packed beds with cocurrent downflow of liquid and gas. Chemical Engineering Science 56(21-22): 5995-6001, 2001

Estimation of overall heat transfer coefficients in packed beds with cocurrent downflow of gas and liquid. Fuel 138: 176-182, 2014

Three-dimensional simulations of gas-liquid cocurrent downflow in vertical, inclined, and oscillating packed beds. Aiche Journal 62(3): 916-927, 2016

Hydrodynamics of two-phase cocurrent downflow through packed beds. Part I. Macroscopic model. Aiche Journal 29(3): 467-473, 1983