A statistical model for dispersed-phase axial mixing

Reynier, Jean-Pierre; Rojey, Alexandre

doi:10.1016/0300-9467(72)85021-4

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…Statistical models may be postulated replacing the uniformly moving drops as used here, by drops moving with different velocities or stopping occasionally for short intervals. A model of this kind was developed by Reynier and Rojey (1972) for packed co-current columns. However, only the response of the column to a rectangular impulse without mass transfer was considered.…”

Section: Discussionmentioning

confidence: 99%

Mass Transfer between Two Liquid Phases in a Spray Column at the Unsteady State

Steiner¹,

Horvath²,

Hartland³

1978

Ind. Eng. Chem. Proc. Des. Dev.

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A model based on the assumption of noncoalescing drops moving uniformly through a cascade of well-mixed hypothetical stages with backflow of the continuous phase is presented to describe mass transfer at the unsteady state in a spray column. Good agreement was obtained when the computed variation of concentration with time at several different points was compared with that obtained experimentally from a pilot plant column. The model may also be used to predict the variation of concentration along the column when the steady state is reached.

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Section: Discussionmentioning

confidence: 99%

Mass Transfer between Two Liquid Phases in a Spray Column at the Unsteady State

Steiner¹,

Horvath²,

Hartland³

1978

Ind. Eng. Chem. Proc. Des. Dev.

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“…Representative studies of liquid-liquid systems (Trambouze, 1961(Trambouze, , 1972Schmitz and Amundson, 1963;Devillon, 1972;Reynier and Rojey, 1972), and gas-liquid systems (Hanhart et al, 1963;Resnick, 1966, 1968;Towell and Ackerman, 1972) indicate that the theory and experimental techniques for measuring the mean and distribution of residence times of either phase are the same as those of single phase, single inlet, single exit systems.…”

Section: Macromixing In Multi-feed Systemsmentioning

confidence: 93%

General Population Balance Modelling of Unpremixed Feedstream Chemical Reactors: A Review

Ritchie

Tobgy

1978

Chemical Engineering Communications

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“…Studies of macromixing in multi-feed systems can be divided into two main classes, dependent on whether the fluid phases are immiscible or miscible. From repre-0019-7874/78/1017-0287$01.00/0 © 1978 American Chemical Society sentative studies on liquid-liquid systems (Trambouze, 1961(Trambouze, ,1972Schmitz and Amundson, 1963;Devillon, 1972;Reynier and Rojey, 1972) and gas-liquid systems (Hanhart et al, 1963; Resnick, 1966, 1968;Rippel et al, 1966;Ostergard, 1968;Towell and Ackerman, 1972) it can be concluded that the theory and experimental techniques for measuring the mean and distribution of residence times of either phase with immiscible fluids are the same as those of single phase, single inlet single exit systems.…”

Section: Systems-previous Studiesmentioning

confidence: 99%

Residence Time Analysis in Systems Having Many Connections with Their Environment

Ritchie¹,

Tobgy²

1978

Ind. Eng. Chem. Fund.

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The mathematical relationships describing the residence-time distribution functions in "closed" systems having many connections with their environment are presented and experimental methods for their determination are suggested. Application of these relationships to systems having one inlet and one exit is shown to produce the familiar expressions for such systems, while the application to systems having two inlets and one exit produce equations consistent with those of Treleaven and Tobgy (1971). The relationship describing the overall residence-time frequency function differs however from that of Buffham and Kropholler (1970). The results should be of interest in areas in which tracer experiments are used such as chemical reactor design, physiology, hydrology, and the study of dispersion processes in rivers and estuaries.

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A statistical model for dispersed-phase axial mixing

Cited by 3 publications

References 9 publications

Mass Transfer between Two Liquid Phases in a Spray Column at the Unsteady State

Mass Transfer between Two Liquid Phases in a Spray Column at the Unsteady State

General Population Balance Modelling of Unpremixed Feedstream Chemical Reactors: A Review

Residence Time Analysis in Systems Having Many Connections with Their Environment

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