Can I read Gas-phase Backmixing in Bubble-column Reactors on EtoBox?

Gas-phase Backmixing in Bubble-column Reactors by S. A. Shetty; M. V. Kantak; B. G. Kelkar is a Engineering article available to read on EtoBox.

What is Gas-phase Backmixing in Bubble-column Reactors about?

Gas-phase backmixing and holdup for the air-water system were measured in 0.15and 0.25-m-dia. bubble columns. Novel experimental and analytical techniques were used to analyze the gas-phase residence time distribution. A Levenberg-Marquardttype optimization scheme was used to obtain the two reactor model parameters: Peclet and Stanton numbers. Operating variables included the column diameter and the superficial gasand liquid-phase velocities. A two-bubble-class hydrodynamic model has been proposed to predict the gasphase backmixing in bubble column reactors. The model assumes a bimodal distribution of the gas phase with large bubbles flowing in a plug-flow manner and the small bubbles partially backmixed. The model only needs easib measurable parameters and has been validated by comparing experimental as well as literature data on gas-phase backmixing with the modefpredictions. The model is more realistic than the conventional single-bubble-class model and provides a rational approach to predict the gas-phase backmixing in scaling-up bubble-column reactors.

Who reads Gas-phase Backmixing in Bubble-column Reactors?

Author

S. A. Shetty; M. V. Kantak; B. G. Kelkar

Publisher

American Institute of Chemical Engineers; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley (ISSN 0001-1541)

Published

1992

Language

EN

Field

Engineering (Physical Sciences)