Effect of Operating Conditions on Gas Holdup in Slurry Bubble Columns With a Foaming Liquid

Modeling and optimization of a large-scale slurry bubble column reactor for producing 10,000bbl/day of Fischer–Tropsch liquid hydrocarbons

“…Mass transfer coefficient k L a ð1 À e G Þ height/inside diameter ratio (L/D C ) varying from 4 to 20, because the considerable data available in the literature (Eickenbusch et al, 1995;Guy et al, 1986;Moustiri et al, 2001;Pino et al, 1992;Shah et al, 1982) used to develop these correlations cover such an L/D C range. It should be mentioned also that have argued that the use of Eq.…”

Novel correlations for gas holdup in large-scale slurry bubble column reactors operating under elevated pressures and temperatures

“…The ratio of height of the reactor to its diameter (H C /D C ) would therefore affect the gas holdup. A number of investigators reported that typically no obvious change in the gas holdup was observed when H C /D C ratios were >5-6 [12,35,32], as the effect of sparger on the total gas holdup within the top region of the reactor was insignificant. Furthermore, the gas holdup was found to decrease with column diameter [33] due to a reduction in the holdup of large gas bubbles [15,34], a change in the liquid backmixing [30], and a reduction of the foaming ability of the liquid/slurry [35].…”

Bubble column reactors

“…pressure and temperature, the effect of superficial gas velocity, solid type and concentration are commonly investigated in these studies. Many experimental studies have been directed towards the quantification of the effects that operating conditions, slurry physical properties and column dimensions have on performance of bubble columns [32]. Although a tremendous number of studies exist in the literature, bubble columns are still not well understood due to the fact that most of these studies are often oriented on only one phase, i.e.…”