Pressure Drop and Mass Transfer Coefficients in Concurrent Screen Plate Bubble Column

Chen, B.H.; Liu, C.H.

doi:10.1080/00986449108911595

Cited by 6 publications

(3 citation statements)

References 17 publications

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“…The k L a coefficient increases not only with the gas flow rate, but also with the liquid flow rate, which is in accordance with results. ,,, This is an advantage of staged bubble columns, as it is known that, in empty columns, the liquid flow shows a negligible effect on the k L a value. An influence of the fabric layer structure on the k L a value was observed for a small distance between the threads w ( w < 0.6 mm).…”

Section: Resultssupporting

confidence: 89%

“…A spatial separation of these two zones gives following advantages: reduced axial mixing because of the horizontally placed fabric layers, , enhanced mass transfer performance by the repeated redistribution of the gas phase, , controlled liquid saturation by the gas because of the sizing of the bubble zones, and reaction conversion control by the amount of catalyst as a function of the reactor length.…”

Section: Introductionmentioning

confidence: 99%

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Bubble Columns Staged with Structured Fibrous Catalytic Layers: Residence Time Distribution and Mass Transfer

Höller

Radevik

Kiwi‐Minsker

et al. 2001

Ind. Eng. Chem. Res.

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A new reactor concept for catalyzed three-phase reactions based on the use of woven fibrous materials for bubble columns is suggested. In comparison to conventional multistage bubble columns, the trays are made from woven fibrous catalytic layers. The hydrodynamic parameters such as the residence time distribution (RTD) and the volumetric gas-liquid mass transfer coefficient k L a are investigated in an air/water system for different layer structures and different superficial gas (u g0 < 60 cm/s) and liquid (u l0 < 6 cm/s) velocities. The major reactor design parameters, such as the thread diameter D, the distance between the woven threads w, and the distance between the fibrous layers b, are discussed.

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Bubble Columns Staged with Structured Fibrous Catalytic Layers: Residence Time Distribution and Mass Transfer

Höller

Radevik

Kiwi‐Minsker

et al. 2001

Ind. Eng. Chem. Res.

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“…(1) with the loss coefficient C being dependent on screen Reynolds number (Re, = do upIpa). Recent data of Chen and Liu (1991) have extended Equation (1) to cover coarse screens with up to 8.5 mm mesh openings.…”

mentioning

confidence: 99%

A correlation of two-phase pressure drops in screen-plate bubble column

1993

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Characteristics of reciprocating screen-plate bubble column with dilute alcohol solutions

Liu

Chen

1993

Can. J. Chem. Eng.

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Characteristics of a reciprocating screen‐plate bubble column were experimentally determined with dilute alcohol solutions. Results show that the addition of ethanol up to the concentration of 0.8 wt% produces very large gas holdups and overall mass transfer coefficients, in comparison with conventional bubble columns. The plate agitation was shown to cause increases not only in the interfacial area “a” but also in the individual mass transfer coefficient kL when the speed of reciprocation was high.

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Pressure Drop and Mass Transfer Coefficients in Concurrent Screen Plate Bubble Column

Cited by 6 publications

References 17 publications

Bubble Columns Staged with Structured Fibrous Catalytic Layers: Residence Time Distribution and Mass Transfer

Bubble Columns Staged with Structured Fibrous Catalytic Layers: Residence Time Distribution and Mass Transfer

A correlation of two-phase pressure drops in screen-plate bubble column

Characteristics of reciprocating screen-plate bubble column with dilute alcohol solutions

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