Gas holdup and its relation to interfacial area in bubble-type reactors

1974 ◽  
Vol 39 (2) ◽  
pp. 528-538 ◽  
Author(s):  
F. Kaštánek ◽  
V. Nývlt ◽  
M. Rylek
Keyword(s):  
Interfacial Area ◽  
Gas Holdup

Interfacial Area and Gas Holdup in an Agitated Gas-Liquid Reactor under Pressure

1995 ◽  
Vol 34 (1) ◽  
pp. 59-71 ◽  
Author(s):  
Dick Stegeman ◽  
Pieter J. Ket ◽  
Harmen A. v.d. Kolk ◽  
Jeroen W. Bolk ◽  
Peter A. Knop ◽  
...  
Keyword(s):  
Interfacial Area ◽  
Gas Holdup

Characteristics of carbide slag slurry flow in a bubble column carbonation reactor

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Peng Zheng ◽  
Genfu Zhou ◽  
Weiling Li ◽  
Chuanwen Zhao ◽  
Pu Huang ◽  
...  
Keyword(s):  
Bubble Column ◽  
Reaction System ◽  
Flow Characteristics ◽  
Interfacial Area ◽  
Gas Holdup ◽  
Operation Condition ◽  
Solid Ratio ◽  
Carbide Slag ◽  
Condition Optimization ◽  
Wide Range

Abstract The direct aqueous mineral carbonation of carbide slag was investigated. The flow characteristics of carbide slag-CO2-water reaction system in a bubble column were studied, which included the bubble Sauter mean diameter, gas holdup, bubble residence time, and the gas-liquid interfacial area. Bubble flow behaviors in the reactor were characterized by analyzing the bed pressure signals. The effects of the gas velocity (U g ) and liquid to solid ratio (L/S ratio) were discussed and analyzed. The results showed that the larger bubbles were easy to form at the larger L/S ratio, which indicated that the bubble coalescence was promoted. The gas holdup was larger when increasing U g or reducing the L/S ratio. The better gas-liquid interfacial areas were found in a wide range of L/S ratio at U g  = 0.082 m/s. The optimum conditions were found at U g  = 0.082 m/s and L/S ratio = 15–30 mL/g for the better gas-liquid interfacial area and the higher carbide slag conversion. The work provided the theoretical basis for the direct aqueous carbonation of the carbide slag and the operation condition optimization.

Interfacial Area and Gas Holdup in a Bubble Column Reactor at Elevated Pressures

1996 ◽  
Vol 35 (11) ◽  
pp. 3842-3847 ◽  
Author(s):  
D. Stegeman ◽  
P. A. Knop ◽  
A. J. G. Wijnands ◽  
K. R. Westerterp
Keyword(s):  
Bubble Column ◽  
Interfacial Area ◽  
Gas Holdup ◽  
Bubble Column Reactor ◽  
Column Reactor ◽  
Elevated Pressures

scholarly journals Measurement of Bubble Size, Gas holdup and Interfacial Area in Bubble Columns using Image Processing Techniques

2019 ◽  
Vol 9 (1) ◽  
pp. 4475-4479
Keyword(s):  
Image Processing ◽  
Size Distribution ◽  
Bubble Size ◽  
Bubble Column ◽  
Rectangular Cross Section ◽  
Bubble Diameter ◽  
Water System ◽  
Interfacial Area ◽  
Gas Holdup ◽  
Bubble Size Distribution

Bubble sizes in bubble column affect transfer processes. Therefore, it’s important to calculate bubble size and interfacial area. Bubble size distribution (BSD) in a bubble column of rectangular cross section with dimensions 0.2m x 0.02m was measured using photographic method (400 fps) for air-water system. Gas holdup, Sauter-mean bubble diameter, aspect ratio and specific interfacial area were estimated from BSD. Effect of superficial gas velocity and static bed height on these parameters was investigated. The bubble size distribution exhibited mono-modal distribution showing the presence of non-uniform homogeneous bubbling regime. The frames of video were analysed using image processing steps to obtain major and minor axis of elliptical bubbles. Values of d32, , and ai were estimated from the data. The value of d32 increased with increasing Ug but is independent of Hs. The values of d32 were somewhat higher than the values reported by other investigators. The value of ai increases with increasing Ug and with decreasing Hs. Present values of compared well with the data reported in literature.

Pressure drop, gas holdup, and interfacial area for gas-liquid contact in Karr columns

1986 ◽  
Vol 25 (3) ◽  
pp. 660-664 ◽  
Author(s):  
N. S. Yang ◽  
Z. Q. Shen ◽  
B. H. Chen ◽  
A. F. McMillan
Keyword(s):  
Pressure Drop ◽  
Interfacial Area ◽  
Gas Holdup

EXPERIMENTAL STUDY ON GAS-HOLDUP AND GAS-LIQUID INTERFACIAL AREA IN TPCFBs

2001 ◽  
Vol 187 (1) ◽  
pp. 251-263 ◽  
Author(s):  
TIEFENG WANG ◽  
JINFU WANG ◽  
WEIGUO YANG ◽  
YONG JIN
Keyword(s):  
Experimental Study ◽  
Interfacial Area ◽  
Gas Holdup
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